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This is being constructed on Dollymans Farm in Shotgate. The site is going to be building waste plant and landfill in the hole left after the A130 was built..
An inbound New Haven Line train crosses the Saugatuck River Railroad Bridge in Westport, CT. The bridge features a pedestrian walkway, which affords some very neat views of the infrastructure and trains. Note here how the employee crossing on the bridge is supported by old rail sections!
M8 (Kawasaki, 2011)
Saugatuck River Railroad Bridge
New Haven Line - MNR
The Bara Gumbad, or "big dome," is a large domed structure grouped together with the Friday mosque of Sikander Lodi and a mehman khana (guesthouse), located in New Delhi's Lodi Gardens. The buildings were constructed at different times during the Lodi era and occupy a common raised platform. Formerly an outlying area of Delhi, the Lodi Gardens are a British-planned landscaped garden which includes a number of monuments (primarily tombs) from the Sayyid and the Lodi dynasties. Originally called Willingdon Park, the gardens were located in the former village of Khairpur, now on the edge of Lutyen's Delhi, the colonial capital built by the British in the early 20th century. The gardens, which cover approx. 70 acres, have come to be surrounded by institutional buildings and some of contemporary Delhi's most expensive real estate.
Although they were built under the same dynasty, each of the three structures was undertaken separately. The Bara Gumbad, completed in 1490, is considered to have the first full dome constructed in Delhi. Its original purpose is contested; although it appears to be a freestanding tomb, it contains no tombstone. This causes the speculation that the building might have been intended as a gateway for the Friday mosque; however, their respective placements, stylistic differences, and construction dates do not support this theory. The Friday mosque, completed in 1494, is the first example of the new mosque type that developed during the Lodi era. Characterized by a relatively simple five bay prayer hall building adjacent to a simple open courtyard, this type was an important precedent for mosque architecture in the Lodi and Mughal eras.
The complex can be accessed from various points along the roads bordering the Lodi Gardens, with the access from the Lodi road towards the south most prominent. The buildings are situated at a distance of about 300 meters from Muhammad Shah's tomb towards the south and about 380 meters from Sikander Lodi's tomb towards the north. Another prominent structure, the Shish Gumbad, is located facing the Bara Gumbad at a distance of about seventy-five meters towards the north. The area surrounding the buildings is landscaped with manicured grass lawns. Few trees are planted in the immediate vicinity, leaving the view of the structures unobscured. The path winding through the Lodi Gardens approaches the buildings axially from the north, although the building plinth is accessible all from all sides.
The buildings are sited on a three-meter-high platform, measuring approximately 30 meters (east-west) by 25 meters (north-south). The Friday mosque is located along the western edge of the platform; the guesthouse is sited opposite it, occupying the eastern edge, while the Bara Gumbad is located along the southern edge. Stone masonry walls, about six meters high, connect the three structures along the southern edge. The northern edge is provided with staircases for accessing the platform. A centrally located straight flight comprising of eight steps, about ten meters wide, connects the ground to a generous mid landing. Another 'C' shaped flight of eight steps wraps around the landing, creating an amphitheatre-like space and reaching the top of the platform. The current arrangement of steps appears to be more recent, and the remains of walls adjoining the southern face of the guesthouse and the mosque indicate that the northern edge might have originally been walled. In the center of the raised court, with its southern edge along the staircase, are the remains of a square shaped platform, 8 meters wide, which appears to be a grave.
Friday mosque:
The Friday mosque is a single aisled, rectangular building, approx. 30 meters (north-south) by 8 meters (east-west). The mosque is organized in five unequal bays, which correspond to the five arched doorways on the eastern (entry) elevation. The width of the arched doorways decreases from the center towards the sides. The arches span across grey granite piers. The central arch is framed within a projecting rectangular portal, measuring about 8 meters in height by 6 meters wide. The piers of the rectangular frame are cased in dressed granite and have three shallow arched niches in red sandstone, occurring vertically above the springing point of the arch, on either side. The doorway itself is described by four receding planes of ogee arches, the outermost one being in line with the external face of the rectangular portal. The doorways immediately to the side of the central portal are about 5 meters wide, while those at the two ends are approx. 1.5 meters wide with two receding planes of ogee arches, adding to the prominence of the central doorway. The apex of each innermost arch is constant, measuring approx. 5 meters from the top of the platform. Each arch is finished in plaster and embellished with intricate carved Arabic inscriptions. The spandrels are also heavily carved with geometric motifs, and their the corners are adorned with round inscribed plaster medallions. Red sandstone eaves (chajjas) on stone brackets top the arches, interrupted only by the central projecting portal that extends above them. There is a blank plastered frieze above the eaves, followed by the projecting horizontal bands of the cornice that is topped by a blind masonry parapet adorned with petal shaped crenellations with inscribed plaster medallions.
The interior of the prayer hall reflects the five bay division of the eastern elevation. It is a rectangular space, measuring about 27 meters (north-south) by about 7 meters (east-west). Additional arches spanning between the piers on the eastern elevation and the engaged piers of the western wall emphasize the demarcation of the interior space into bays. These internal ogee arches reach a height of about five meters. They are finished in plaster and profusely decorated with carvings of Arabic inscriptions. The piers are unornamented, dressed gray granite.
The qibla (western) wall of the prayer hall is a blind wall divided into five unequal bays expressed as recessed ogee arched niches, reflecting the arched openings on the eastern wall. The two bays adjacent to the central bay have three equal niches carved out from the portion below the springing line of the main arch. These niches are separated by granite piers, which have smaller arched niches in the top third of their elevation. The three niches are made of two layers of ogee arches framed by the piers. The external layer is in gray-yellow granite, while the interior arch is made of red sandstone. The central niche is mildly distinguishable from the others because its arched portion is curved and the imposts are engraved, while those of the adjacent arches are plain. The innermost rectangular portion of the central niche is blank, while that of the adjoining niches has the carving of a vase and flora inscribed in it. The tympanum of the main outer arch is finished in plaster and has an additional niche directly above the central niche which is embellished heavily with plaster carvings of Arabic inscriptions. A band of similar inscriptions runs along the interior perimeter of the arch and around the upper niche in a closed loop. The voussoirs of the outer arch are plastered and embellished with another layer of carvings. The central bay of the western wall also has three niches, each made of four recessed planes of alternating rectangular and arched profiles. The central mihrab niche is taller and wider. It is also shallower and the innermost plane is blank, while the other two niches are deeper set with relief work. A stone minbar with three steps has been provided abutting the northern pier of the central niche.
Hemispherical domes cover the three central bays, while the terminal bays are covered by low flat vaulted ceilings. The square plan of the three central bays transitions into an octagonal drum through the application of corbelled pendentives at the corners. The corbelling occurs in four layers, which increases in width from the bottom up. The layers are further embellished with curved niches set into rectangular frames, which also increase in number, the lowest corbel having one and the last corbel having five such niches. The last layers of the pendentives form alternate edges of the octagonal drum; the remaining edges being formed by the extension of the walls and are also provided with similar curved niches. The octagonal drum transitions into a hexadecagon, followed by a thirty-two-sided polygon by the provisions of small struts. Each face of the hexadecagon is provided with shallow niches, while the thirty-two-sided polygon is described by a projecting band of red sandstone, followed by a band of inscriptions finally topped by the hemispherical dome. The dome is finished in plain plaster. The voussoirs of the arches, the pendentives and the tympanum are all covered by intricate stucco Arabic inscriptions. The central dome is relatively higher that the other two domes.
The northern and southern walls of the mosque are punctured by ogee arch doorways below the springline of the main arch. Each opening leads to a projecting balcony, comprising of red sandstone posts supporting a tiered roof. The balconies protrude out from the faade and are supported on red sandstone brackets, whose profiles and carvings are characteristic of Hindu architecture. An elaborately carved arched niche is provided above each opening on the interior wall. It is set into a rectangular frame embossed with Arabic text.
The plasterwork on the external northern and southern walls of the mosque has fallen off, exposing the stone masonry, while that on the western wall has survived. The central bay of the western wall projects out and is marked by two solid towers at the corners. These towers are divided vertically into four layers; the first two layers from the bottom are orthogonal, while the third layer has alternating curved and angular fluting; the top layer, extending over the parapet of the mosque, has a circular section. The corners of the mosque are marked by similar tapering towers, which are divided into four layers. Each layer is circular in plan except the third layer, which is described by alternating curved and angular fluting. All the towers have the remains of finials at their apex. The central projecting wall has four red sandstone brackets in its upper third portion, which may have supported a projecting balcony similar to those on the north and south elevations.
The plasterwork on the walls of the plinth is now gone, exposing the rubble masonry construction below. The western face of the plinth is punctured by five ogee arch openings set into rectangular frames, one in the center and two each on the sides. These openings provide access to the basement within the plinth.
The roof has three domes corresponding to the three central bays of the prayer hall and the three central arches on the eastern elevation. The extrados of the domes are finished in plaster. The octagonal drums supporting the domes protrude out over the roof level, above which the circular bases of the domes are decorated with blind crestings having floral motifs. The central dome is marginally larger than the adjacent domes and all three have the remains of lotus finials at their apex.
Bara Gumbad:
Square in plan, the Bara Gumbad measures approx. 20 meters per side. Set on a plinth 3 meters high, it joins the common plinth on the north and projects beyond it to the south. Its plinth is decorated on the east, south, and west with ogee arch openings set into rectangular frames. These provide access to a basement.The walls of the Bara Gumbad are approx. 12 meters tall, above which a hemispherical dome on a hexadecagonal drum extends another 14 meters from the roof level, for a total building height of 29 meters above ground level.
Each of its elevations is nearly identical and divided into 2 horizontal sections. A projecting portal composed of an ogee arch set in a rectangular frame (approx. 8 meters wide), is centered in each elevation and rises approximately 75 cm above the parapet line of the building. The 1.5 meter wide frame is made of dressed gray granite. Each vertical pier of the frame has six shallow red sandstone niches arranged atop one another at varying heights; nine niches continue in a line along the horizontal portion of the frame. The portal is described by two receding planes of grey granite ogee arches; the spandrels are cased with black granite with a thin projecting edge of red sandstone. Two round plaster medallions adorn the spandrels. The lower layer of the portal has a central doorway, spanned by two red sandstone brackets that form a trabeated arch supporting a black granite lintel. These brackets are supported on grey granite posts. An intricately carved red sandstone frame adorns the brackets and the lintel; it starts at the springing point of the arch and frames the lintel of the doorway. The entire composition is set in a rectangular yellow sandstone frame. An ogee arch window has been provided above the trabeated entrance. The portal is crowned by the arched crenellations of the blind parapet. Solid turrets mark the projecting corners of the portal.
The remainder of the elevation, that flanking the central portal on either side and recessed behind it, is divided vertically into two equivalent parts by projecting horizontal bands of stone. Each part is described by two equal arched panels set into rectangular frames. Both the panels of the upper part on either side of the portal are blind and filled with granite masonry. The lower panels located adjacent to the portal are windows, while the lower panels at the edges are filled in. The parapet, like the portal, is decorated with arched crenellations, and the roof has solid turrets at each corner.
A single hemispherical dome surmounted on a sixteen-sided drum crowns the building. Each face of the drum is described by an ogee arched niche set in a rectangular frame. The voussoirs of the arches are gray granite, while the spandrels are clad with red sandstone. The top edge of the drum is decorated with a band of arched crenellations, similar to those on the roof parapets, running above a projecting band of stone that surrounds the drum. Below this projection is band of leaves carved in relief. The extrados of the dome are finished in smooth plaster. The lotus base, possibly for a vanished calyx finial, is still extant.
The structure can be entered either from the raised courtyard via the north elevation or from a double flight of steps located on the western elevation. Inside, the square building measures about seven meters per side. An 80 cm high, 45 cm wide solid seat runs continuously along the interior perimeter of the building. Light streams in from all four walls, which are punctured by the openings of the doorway at the ground level and the ogee arch window above. The interior surfaces of the Gumbad are unornamented and finished in dressed granite. The square plan of the room transitions into an octagon via squinches, which then support the thirty-two-sided drum and the dome. The apex of the dome has two bands of floral inscriptions; otherwise, the dome is finished in plaster. The absence of historical inscriptions has contributed to the confusion over the original purpose of the Bara Gumbad.
Mehman Khana:
The third structure in the group is rectangular in plan, measuring about 27 meters (north-south) by 7 seven meters (east-west). Located along the eastern edge of the common plinth, it faces the mosque and is connected to the Bara Gumbad by a masonry wall along its northern face. The structure is believed to have either been a mehman khana, (guesthouse) or a majlis khana (assembly hall).
The building is accessed from the common plinth through its western wall, which is divided into five bays, mirroring the eastern elevation of the mosque opposite it. The three central bays are considerably larger and have ogee arch doorways, giving access to the interior, while windows puncture the smaller end bays. The arches are set in rectangular frames, which are recessed from the face of the elevation. Each opening is composed of two recessed planes of arches. The spandrels are clad in red sandstone, contrasting with the gray granite of the elevation, and are decorated with round plaster medallions with lotus motifs. The window openings have an additional tie beam or lintel at the springline. The tympanum of the window towards the south has been filled with stone, while that of the window towards the north has been left open. A continuous chajja, supported on equidistant stone brackets, projects from the western wall above the rectangular frame. The cornice is unornamented and is topped by the projecting horizontal band of the parapet, which reaches a height of approximately five meters from the top of the raised plinth. The roof of the structure is flat. The exterior of the building lacks decoration and is finished in dressed granite.
The interior is divided into seven chambers occurring from north to south; the central chamber is the largest, measuring about 5 meters (north-south) long. It is abutted by relatively narrow chambers (approx. 2.5 meters long). The outside chambers which flank the 2.5 meter wide chambers on either side are approximately the size of the central chamber, and correspond to the arched openings in the western wall. The chambers are separated from each other by gray granite walls, punctured by simple ogee arched doorways set in rectangular frames. Square in plan, the outer rooms are separated from the adjacent chambers by stone walls with rectangular door openings with blind ogee arches and rectangular frames. Each doorway has shallow rectangular recesses on either side, as well as a small arched window set into a rectangular recess and a stone jali screen set above the doorway within the tympanum of the main arch. The eastern wall of the building has blind ogee arches, occurring as two successive planes, reflecting the arched openings of the western elevation.
The roof of the central chamber is flat and supported on arches located on four sides; flat stone brackets appear at the corners. The two adjacent rooms are covered by shallow domes supported on squinches. The interior domes are finished in plaster with carved concave fluting. The exterior of the domes has been filled to blend with the flat roof of the central room.
Certain stylistic continuities are recognizable in the three buildings; each was constructed with (local) gray granite and lime mortar. However, the degree and type of embellishment, both interior and exterior, on the mosque differs substantially from that found on the other two, relatively unadorned, buildings.
Apart from the grouping of the three structures and their stylistic similarities, the buildings do not appear to have been planned as a complex. The Friday mosque is the first example of the panchmukhi building type, where "panch" (five) and "mukhi " (facade) characterize a five-bay prayer hall. This approach was influential in both the Lodi and the Mughal periods. The Bara Gumbad is significant for having the first complete hemispherical dome in Delhi.
The differences in the surface ornament of the buildings suggest that the buildings were constructed at different times, with the Bara Gumbad and the guesthouse being similar in style and decoration, without the multilayered arches of the Friday mosque. The function of the Bara Gumbad is still unknown; its geometry and form aligns with the predominant tomb architecture of the period (like the neighboring Shish Gumbad). However, there is no grave or cenotaph in the building, and rather than being blank, its qibla wall (like its other walls) is punctured by an entrance. While the continuous stone bench in the interior is also found in gateway architecture, (as in the Alai Darwaza at the Quwat-ul-Islam Mosque in Mehrauli), the size of the Bara Gumbad vis-a-vis the Friday mosque does not support this conjecture. Some scholars surmise that the structure might have been a gateway to the larger complex of tombs within the Lodi Gardens.
Lodi Dynasty
-----------------
The Lodi dynasty in India arose around 1451 after the Sayyid dynasty. The Lodhi Empire was established by the Ghizlai tribe of the Afghans. They formed the last phase of the Delhi Sultanate. There were three main rulers in the history of Lodi dynasty. All three of them have been discussed in detail in the following lines. So read on about the Lodi dynasty history.
Buhlul Khan Lodi
Buhlul Khan Lodi (1451-1489) was the founder of the Lodi dynasty in India and the first Afghan ruler of Delhi. He was an Afghan noble who was a very brave soldier. Buhlul Khan seized the throne without much resistance from the then ruler, Alam Shah. His territory was spread across Jaunpur, Gwalior and northern Uttar Pradesh. During his reign in 1486, he appointed his eldest son Barbak Shah as the Viceroy of Jaunpur. Though he was an able ruler, he really couldn't decide as to which son of his should succeed him as the heir to the throne.
Sikandar Lodi
After the death of Buhlul Khan, his second son succeeded him as the king. He was given the title of Sultan Sikander Shah. He was a dedicated ruler and made all efforts to expand his territories and strengthen his empire. His empire extended from Punjab to Bihar and he also signed a treaty with the ruler of Bengal, Alauddin Hussain Shah. He was the one who founded a new town where the modern day Agra stands. He was known to be a kind and generous ruler who cared for his subjects.
Ibrahim Lodhi
Ibrahim Lodhi was the son of Sikander who succeeded him after his death. Due to the demands of the nobles, his younger brother Jalal Khan was given a small share of the kingdom and was crowned the ruler of Jaunpur. However, Ibrahim's men assassinated him soon and the kingdom came back to Ibrahim Lodhi. Ibrahim was known to be a very stern ruler and was not liked much by his subjects. In order to take revenge of the insults done by Ibrahim, the governor of Lahore Daulat Khan Lodhi asked the ruler of Kabul, Babur to invade his kingdom. Ibrahim Lodhi was thus killed in a battle with Babur who was the founder of the Mughal dynasty in India. With the death of Ibrahim Lodhi, the Lodhi dynasty also came to an end.
See the large view!
Die Luminale ist ein Festival der Lichtkultur, das seit 2000 alle zwei Jahre in Frankfurt am Main stattfindet. Es wird immer parallel zur Light + Building, einer internationalen Fachmesse für Licht- und Beleuchtungstechnik, veranstaltet. Während des Festivals sind an öffentlichen und privaten Gebäuden sowie an markanten Plätzen in und um Frankfurt Lichtkunstwerke und Lichtinstallationen zu sehen.
From Wikipedia, the free encyclopedia
The Temple was a monumental structure; it measured 120 m in length and 50 m across. The sixty massive columns surrounding the cella were well over 2 m in diameter and more than 21 m high. The Temple was topped with the largest Corinthian capitals ever sculpted, one of which, 2.5 metres in height, 1.9 metres in diameter and 20 tons in weight, was unearthed in 2013.
In AD 124, the city of Cyzicus was granted the role of neokoros, temple warden of the imperial cult. The people of Cyzicus declared Hadrian the 13th Olympian god.
The Byzantine chronicler John Malalas called the Temple of Hadrian at Cyzicus “a very large temple, one of the wonders" with a very large bust of Hadrian on the roof and a marble stele inscribed "of Divine Hadrian". (Malalas, Chronography Bks 1-7, 10-18)
Cassius Dio called it “the largest and most beautiful of all temples, writing that “its columns were four cubits in thickness and fifty cubits in height" writing that "in general, the details were more to be wondered at than praised.” (epit. 70.4.1–2).
Blue Metal Structure. © Copyright 2018 G Dan Mitchell - all rights reserved.
Detail of a blue metal building at the Mare Island Naval Ship Yard.
I was at the historic Mare Island Naval Ship Yard to spend the evening doing night photography with my friends from the original Nocturnes group, and I had arrived well before sunset. After meeting up in the Mare Island Museum for pizza and conversation we realized that the end of the day was coming. I went outside about a half hour before sunset, and I thought of some old industrial buildings that I had passed on the way in. Instead of staying where I was and starting my typical routine of wandering on foot with my gear I decided to take short drive back to those buildings and see if I could make a few quick photographs in the end-of-day light.
I soon arrived and made a few photographs in golden hour light, but the sun quickly dropped below the horizon and I was left with that post-sunset glow. This light can be quite warm if clouds reflect some of the remaining red, yellow, and orange tones of sunset, but if the sky is clear what remains is the intense blue of early twilight. The latter light is what evolved, and I soon moved back to this unusual structure whose blue paint's color was even more intensified by this twilight illumination.
G Dan Mitchell is a California photographer and visual opportunist. His book, "California's Fall Color: A Photographer's Guide to Autumn in the Sierra" is available from Heyday Books and Amazon.
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Sometimes you don't have to look for the huge open landscapes.
After a storm the snow often has a lot of facinating structures.
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The de Havilland DH.98 Mosquito was a British multi-role combat aircraft with a two-man crew that served during and after the Second World War. It was one of few operational front-line aircraft of the era constructed almost entirely of wood and was nicknamed "The Wooden Wonder". The Mosquito was also known affectionately as the "Mossie" to its crews. Originally conceived as an unarmed fast bomber, the Mosquito was adapted to roles including low to medium-altitude daytime tactical bomber, high-altitude night bomber, pathfinder, day or night fighter, fighter-bomber, intruder, maritime strike aircraft, and fast photo-reconnaissance aircraft. It was also used by the British Overseas Airways Corporation (BOAC) as a fast transport to carry small high-value cargoes to, and from, neutral countries, through enemy-controlled airspace.
When the Mosquito began production in 1941, it was one of the fastest operational aircraft in the world. Entering widespread service in 1942, the Mosquito was a high-speed, high-altitude photo-reconnaissance aircraft, continuing in this role throughout the war. From mid-1942 to mid-1943 Mosquito bombers flew high-speed, medium or low-altitude missions against factories, railways and other pinpoint targets in Germany and German-occupied Europe. From late 1943, Mosquito bombers were formed into the Light Night Strike Force and used as pathfinders for RAF Bomber Command's heavy-bomber raids. They were also used as "nuisance" bombers, often dropping Blockbuster bombs - 4,000 lb (1,812 kg) "cookies" - in high-altitude, high-speed raids that German night fighters were almost powerless to intercept.
As a night fighter, from mid-1942, the Mosquito intercepted Luftwaffe raids on the United Kingdom, notably defeating Operation Steinbock in 1944. Starting in July 1942, Mosquito night-fighter units raided Luftwaffe airfields. As part of 100 Group, it was a night fighter and intruder supporting RAF Bomber Command's heavy bombers and reduced bomber losses during 1944 and 1945. As a fighter-bomber in the Second Tactical Air Force, the Mosquito took part in "special raids", such as the attack on Amiens Prison in early 1944, and in precision attacks against Gestapo or German intelligence and security forces. Second Tactical Air Force Mosquitos supported the British Army during the 1944 Normandy Campaign. From 1943 Mosquitos with RAF Coastal Command strike squadrons attacked Kriegsmarine U-boats (particularly in the 1943 Bay of Biscay, where significant numbers were sunk or damaged) and intercepting transport ship concentrations.
The Mosquito flew with the Royal Air Force (RAF) and other air forces in the European theatre, and the Mediterranean and Italian theatres. The Mosquito was also used by the RAF in the South East Asian theatre, and by the Royal Australian Air Force (RAAF) based in the Halmaheras and Borneo during the Pacific War.
By the early-mid-1930s, de Havilland had a reputation for innovative high-speed aircraft with the DH.88 Comet racer. The later DH.91 Albatross airliner pioneered the composite wood construction that the Mosquito used. The 22-passenger Albatross could cruise at 210 miles per hour (340 km/h) at 11,000 feet (3,400 m), better than the 100 miles per hour (160 km/h) Handley Page H.P.42 and other biplanes it was replacing. The wooden monocoque construction not only saved weight and compensated for the low power of the de Havilland Gipsy Twelve engines used by this aircraft, but simplified production and reduced construction time.
Air Ministry bomber requirements and concepts:
On 8 September 1936, the British Air Ministry issued Specification P.13/36 which called for a twin-engined medium bomber capable of carrying a bomb load of 3,000 pounds (1,400 kg) for 3,000 miles (4,800 km) with a maximum speed of 275 miles per hour (443 km/h) at 15,000 feet (4,600 m); a maximum bomb load of 8,000 pounds (3,600 kg) which could be carried over shorter ranges was also specified. Aviation firms entered heavy designs with new high-powered engines and multiple defensive turrets, leading to the production of the Avro Manchester and Handley Page Halifax.
In May 1937, as a comparison to P.13/36, George Volkert, the chief designer of Handley Page, put forward the concept of a fast unarmed bomber. In 20 pages, Volkert planned an aerodynamically clean medium bomber to carry 3,000 pounds (1,400 kg) of bombs at a cruising speed of 300 miles per hour (480 km/h). There was support in the RAF and Air Ministry; Captain R N Liptrot, Research Director Aircraft 3 (RDA3), appraised Volkert's design, calculating that its top speed would exceed the new Supermarine Spitfire. There were, however, counter-arguments that, although such a design had merit, it would not necessarily be faster than enemy fighters for long. The ministry was also considering using non-strategic materials for aircraft production, which, in 1938, had led to specification B.9/38 and the Armstrong Whitworth Albemarle medium bomber, largely constructed from spruce and plywood attached to a steel-tube frame. The idea of a small, fast bomber gained support at a much earlier stage than sometimes acknowledged though it was unlikely that the Air Ministry envisaged it not using light alloy components.
Project Mosquito:
Once design of the DH.98 had started, de Havilland built mock-ups, the most detailed at Salisbury Hall, in the hangar where E0234 was being built. Initially, this was designed with the crew enclosed in the fuselage behind a transparent nose (similar to the Bristol Blenheim or Heinkel He 111H), but this was quickly altered to a more solid nose with a more conventional canopy.
The construction of the prototype began in March 1940, but work was cancelled again after the Battle of Dunkirk, when Lord Beaverbrook, as Minister of Aircraft Production, decided there was no production capacity for aircraft like the DH.98, which was not expected to be in service until early 1941. Although Lord Beaverbrook told Air Vice-Marshal Freeman that work on the project had better stop, he did not issue a specific instruction, and Freeman ignored the request. In June 1940, however, Lord Beaverbrook and the Air Staff ordered that production was to focus on five existing types, namely the Supermarine Spitfire, Hawker Hurricane, Vickers Wellington, Armstrong-Whitworth Whitley and the Bristol Blenheim. Work on the DH.98 prototype stopped, and it seemed that the project would be shut down when the design team were denied the materials with which to build their prototype.
The Mosquito was only reinstated as a priority in July 1940, after de Havilland's General Manager L.C.L Murray, promised Lord Beaverbrook 50 Mosquitoes by December 1941, and this, only after Beaverbrook was satisfied that Mosquito production would not hinder de Havilland's primary work of producing Tiger Moth and Oxford trainers and repairing Hurricanes as well as the licence manufacture of Merlin engines. In promising Beaverbrook 50 Mosquitoes by the end of 1941, de Havilland was taking a gamble, because it was unlikely that 50 Mosquitos could be built in such a limited time; as it transpired only 20 Mosquitos were built in 1941, but the other 30 were delivered by mid-March 1942.
During the Battle of Britain, nearly a third of de Havilland's factory time was lost because the workers took cover in the factory's bomb shelters. Nevertheless, work on the prototype went quickly, such that E0234 was rolled out on 19 November 1940.
In the aftermath of the Battle of Britain, the original order was changed to 20 bomber variants and 30 fighters. It was still uncertain whether the fighter version should have dual or single controls, or should carry a turret, so three prototypes were eventually built: W4052, W4053 and W4073. The latter, both turret armed, were later disarmed, to become the prototypes for the T.III trainer. This caused some delays as half-built wing components had to be strengthened for the expected higher combat load requirements. The nose sections also had to be altered, omitting the clear perspex bomb-aimer's position, to solid noses designed to house four .303 machine guns and their ammunition.
Overview:
The Mosquito was a fast, twin-engined aircraft with shoulder-mounted wings. The most-produced variant, designated the FB Mk VI (Fighter-bomber Mark 6), was powered by two Merlin Mk 23 or Mk 25 engines driving three-bladed de Havilland hydromatic propellers. The typical fixed armament for an FB Mk VI was four Browning .303 machine guns and four 20 mm Hispano cannon while the offensive load consisted of up to 2,000 pounds (910 kg) of bombs, or eight RP-3 unguided rockets.
Construction:
The oval-section fuselage was a frameless monocoque shell built in two halves being formed to shape by band clamps over a mahogany or concrete mould, each holding one half of the fuselage, split vertically. The shell halves were made of sheets of Ecuadorean balsawood sandwiched between sheets of Canadian birch, but in areas needing extra strength— such as along cut-outs— stronger woods replaced the balsa filler; the overall thickness of the birch and balsa sandwich skin was only 7⁄16 inch (11 mm). This sandwich skin was so stiff that no internal reinforcement was necessary from the wing's rear spar to the tail bearing bulkhead. The join was along the vertical centre line. This split construction greatly aided the assembly of the internal equipment as it allowed the technicians easy access to the fuselage interior. While the glue in the plywood skin dried, carpenters cut a sawtooth joint into the edges of the fuselage shells, while other workers installed the controls and cabling on the inside wall. When the glue completely dried, the two halves were glued and screwed together. The fuselage was strengthened internally by seven bulkheads made up of two plywood skins parted by spruce blocks, which formed the basis on each half for the outer shell. Each bulkhead was a repeat of the spruce design for the fuselage halves; a balsa sheet sandwich between two plywood sheets/skins. Bulkhead number seven carried the fittings and loads for the tailplane and rudder, The type of glue originally used was Casein, which was later replaced by "Aerolite", a synthetic urea-formaldehyde, which was more durable. Many other types of screws and flanges (made of various woods) also held the structure together.
The fuselage construction joints were made from balsa wood and plywood strips with the spruce multi-ply being connected by a balsa V joint, along with the interior frame. The spruce would be reinforced by plywood strips at the point where the two halves joined to form the V-joint. Located on top of the joint the plywood formed the outer skin. During the joining of the two halves ("boxing up"), two laminated wooden clamps would be used in the after portion of the fuselage to act as support. A covering of doped Madapolam (a fine plain woven cotton) fabric was stretched tightly over the shell and a coat of silver dope was applied, after which the exterior camouflage was applied. The fuselage had a large ventral section cut-out, which was braced during construction, to allow it to be lowered onto the wing centre-section. Once the wing was secured the lower panels were replaced, and the bomb bay or armament doors fitted.
The all-wood wing was built as a one-piece structure and was not divided into separate construction sections. It was made up of two main spars, spruce and plywood compression ribs, stringers, and a plywood covering. The outer plywood skin was covered and doped like the fuselage. The wing was installed into the roots by means of four large attachment points. The engine radiators were fitted in the inner wing, just outboard of the fuselage on either side. These gave less drag. The radiators themselves were split into three sections: an oil cooler section outboard, the middle section forming the coolant radiator and the inboard section serving the cabin heater. The wing contained metal framed and skinned ailerons, but the flaps were made of wood and were hydraulically controlled. The nacelles were mostly wood, although, for strength, the engine mounts were all metal as were the undercarriage parts. Engine mounts of welded steel tube were added, along with simple landing gear oleos filled with rubber blocks. Wood was used to carry only in-plane loads, with metal fittings used for all triaxially loaded components such as landing gear, engine mounts, control surface mounting brackets, and the wing-to-fuselage junction. The outer leading wing edge had to be brought 22 inches (56 cm) further forward to accommodate this design. The main tail unit was all wood built. The control surfaces, the rudder and elevator, were aluminium framed and fabric covered. The total weight of metal castings and forgings used in the aircraft was only 280 lb (130 kg).
In November 1944, several crashes occurred in the Far East. At first, it was thought these were as a result of wing structure failures. The casein glue, it was said, cracked when exposed to extreme heat and/or monsoon conditions. This caused the upper surfaces to "lift" from the main spar. An investigating team led by Major Hereward de Havilland travelled to India and produced a report in early December 1944 stating that "the accidents were not caused by the deterioration of the glue but by shrinkage of the airframe during the wet monsoon season". However a later inquiry by Cabot & Myers definitely attributed the accidents to faulty manufacture and this was confirmed by a further investigation team by the Ministry of Aircraft Production at Defford which found faults in six different Marks of Mosquito (all built at de Havilland's Hatfield and Leavesden plants) which showed similar defects, and none of the aircraft had been exposed to monsoon conditions or termite attack; thus it was concluded that there were construction defects found at the two plants. It was found that the "Standard of glueing...left much to be desired”. Records at the time showed that accidents caused by "loss of control" were three times more frequent on Mosquitoes than on any other type of aircraft. The Air Ministry forestalled any loss of confidence in the Mosquito by holding to Major de Havilland's initial investigation in India that the accidents were caused "largely by climate" To solve the problem, a sheet of plywood was set along the span of the wing to seal the entire length of the skin joint along the main spar.
Information regarding the de Havilland DH98 Mosquito has been taken from excerpts contained on Wikipedia
Aston Martin Ulster Roadster (1936)
In 1927 Aston Martin was taken over by race driver A. C. Bertelli. He designed a 1.5-litre, SOHC engine which would eventually power the LeMans-racing Ulster. Thoughout the years the engine was devloped to include dry sump lubrication.
The Aston Martin Ulster stands as one of the most respected pre-war racecars. It was largely based on the Mark II which came before it.
The Ulster had a breif two year race program. During this time they dominated the British Tourist Trophy at Goodwood. In 1934, Ulsters took first, second and third place. The best LeMans result was achieved in 1935. Chassis LM20 raced to third overall which put it first in the 1101 to 1500cc class.
After the race efforts, Aston Martin readied a production version of the LeMans cars. Twenty-One of these cars were built of which all are accounted for today.
Aston Martin Ulster information used from:
www.supercars.net/cars/2084.html
In the 1980's a small number (7) replicas of the Aston Martin Ulster Roadster were manufactured as a kit car:
Fergus Mosquito (Aston Martin Ulster replica)
Kop Hill Climb - 25th September 2011
Fergus Mosquito - an Aston Martin Ulster replica.
Only seven were made in Kingsbridge, Devon, in the 1980s, using donor Morris Marina B-series engines and other parts.
UIJ233 is the best of the 7 replicas.
These two models, the de Havilland DH98 Mosquito aircraft and the Aston Martin Ulster Roadster of 1936 have been created in Lego miniland scale for Flickr LUGNuts' 79th Build Challenge, - 'LUGNuts goes Wingnuts" - featuring automotive vehicles named after, inspired by or related to aircraft.
natural patterns in the snow, the trees and the clouds - structures worked out by light
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Luminance HDR 2.2.1 tonemapping parameters:
Operator: Mantiuk06
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PreGamma: 0.7
on explore Mar 18, 2013 #469 Dropped
Lago Hermoso - Siete Lagos - San Martin de los Andes - Neuquen - Patagonia - Argentina
One of the most beautiful lakes ever