View allAll Photos Tagged Compressor
Compressor rotors and inlet guide vane (IGV) housings from Westinghouse J34 turbojet engines.
These parts were probably removed from J34s that were once installed on Lockheed P2V / P-2 Neptune maritime patrol aircraft. Minden Air used to operate P2V / P-2 fire-fighting air tankers, such as Tanker 55:
Westinghouse J34 (Wikipedia):
en.wikipedia.org/wiki/Westinghouse_J34
Photographed at Minden-Tahoe Airport (MEV / KMEV)
Once upon a time, pharmacists made up their own medicines and bottled them. Then they had to get a cork into the bottle. This is a cork compressor; the fresh cork is placed in the slot and the handle forced shut to compress it. The cork is quickly put in the bottle neck where it expands to seal the bottle. Not high tech, but it worked!
Dinorwic had 5 air-compressors in the quarry, the most well-known being the Compressor House on the Braich side of the quarry at Australia level. This example is lower down on the Garret side at Penrhydd Level, next to the Smithy and the start of the Foxes Path.
Upgraded air compressor in action with the landing gear of the ship that's now been in development for what feels like forever.
Photographed at the Battery Hill Mine Museum. Tennant Creek has a rich history as a gold mining centre. Here was found one of the richest gold bearing seams ever mined in the world. Very remotely located in central Australian desert country, life was harsh for the people who lived here.
+++ DISCLAIMER +++
Nothing you see here is real, even though the conversion or the presented background story might be based on historical facts. BEWARE!
Some background:
The Lockheed P-80 Shooting Star was the first jet fighter used operationally by the United States Army Air Forces (USAAF) during World War II. Designed and built by Lockheed in 1943 and delivered just 143 days from the start of design, production models were flying, and two pre-production models did see very limited service in Italy just before the end of World War II. The XP-80 had a conventional all-metal airframe, with a slim low wing and tricycle landing gear. Like most early jets designed during World War II—and before the Allies captured German research data that confirmed the speed advantages of swept-wings—the XP-80 had straight wings similar to previous propeller-driven fighters, but they were relatively thin to minimize drag at high speed.
The Shooting Star began to enter service in late 1944 with 12 pre-production YP-80As. Four were sent to Europe for operational testing (demonstration, familiarization, and possible interception roles), two to England and two to the 1st Fighter Group at Lesina Airfield, Italy. Because of delays in delivery of production aircraft, the Shooting Star saw no actual combat during the conflict. The initial production order was for 344 P-80As after USAAF acceptance in February 1945. A total of 83 P-80s had been delivered by the end of July 1945 and 45 assigned to the 412th Fighter Group (later redesignated the 1st Fighter Group) at Muroc Army Air Field. Production continued after the war, although wartime plans for 5,000 were quickly reduced to 2,000 at a little under $100,000 each. A total of 1,714 single-seat F-80A, F-80B, F-80C, and RF-80s were manufactured by the end of production in 1950, of which 927 were F-80Cs (including 129 operational F-80As upgraded to F-80C-11-LO standards). However, the two-seat TF-80C, first flown on 22 March 1948, became the basis for the T-33 trainer, of which 6,557 were produced.
Shooting Stars first saw combat service in the Korean War, and were among the first aircraft to be involved in jet-versus-jet combat. Despite initial claims of success, the speed of the straight-wing F-80s was inferior to the 668 mph (1075 km/h) swept-wing transonic MiG-15. The MiGs incorporated German research showing that swept wings delayed the onset of compressibility problems, and enabled speeds closer to the speed of sound. F-80s were soon replaced in the air superiority role by the North American F-86 Sabre, which had been delayed to also incorporate swept wings into an improved straight-winged naval FJ-1 Fury.
This prompted Lockheed to improve the F-80 to keep the design competitive, and the result became the F-80E, which was almost a completely different aircraft, despite similar outlines. Lockheed attempted to change as little of the original airframe as possible while the F-80E incorporated two major technical innovation of its time. The most obvious change was the introduction of swept wings for higher speed. After the engineers obtained German swept-wing research data, Lockheed gave the F-80E a 25° sweep, with automatically locking leading edge slots, interconnected with the flaps for lateral stability during take-off and landing, and the wings’ profile was totally new, too. The limited sweep was a compromise, because a 35° sweep had originally been intended, but the plan to retain the F-80’s fuselage and wing attachment points would have resulted in massive center of gravity and mechanical problems. However, wind tunnel tests quickly revealed that even this compromise would not be enough to ensure stable flight esp. at low speed, and that the modified aircraft would lack directional stability. The swept-wing aircraft’s design had to be modified further.
A convenient solution came in the form of the F-80’s trainer version fuselage, the T-33, which had been lengthened by slightly more than 3 feet (1 m) for a second seat, instrumentation, and flight controls, under a longer canopy. Thanks to the extended front fuselage, the T-33’s wing attachment points could accept the new 25° wings without much further modifications, and balance was restored to acceptable limits. For the fighter aircraft, the T-33’s second seat was omitted and replaced with an additional fuel cell. The pressurized front cockpit was retained, together with the F-80’s bubble canopy and out fitted with an ejection seat.
The other innovation was the introduction of reheat for the engine. The earlier F-80 fighters were powered by centrifugal compressor turbojets, the F-80C had already incorporated water injection to boost the rather anemic powerplant during the start phase and in combat. The F-80E introduced a modified engine with a very simple afterburner chamber, designated J33-A-39. It was a further advanced variant of the J33-A-33 for the contemporary F-94 interceptor with water-alcohol injection and afterburner. For the F-80E with less gross weight, the water-alcohol injection system was omitted so save weight and simplify the system, and the afterburner was optimized for quicker response. Outwardly, the different engine required a modified, wider tail section, which also slightly extended the F-80’s tail.
The F-80E’s armament was changed, too. Experience from the Korean War had shown that the American aircrafts’ traditional 0.5” machine guns were reliable, but they lacked firepower, esp. against bigger targets like bombers, and even fighter aircraft like the MiG-15 had literally to be drenched with rounds to cause significant damage. On the other side, a few 23 mmm rounds or just a single hit with an explosive 37 mm shell from a MiG could take a bomber down. Therefore, the F-80’s six machine guns in the nose were replaced with four belt-fed 20mm M24 cannon. This was a license-built variant of the gas-operated Hispano-Suiza HS.404 with the addition of electrical cocking, allowing the gun to re-cock over a lightly struck round. It offered a rate of fire of 700-750 rounds/min and a muzzle velocity of 840 m/s (2,800 ft/s).In the F-80E each weapon was provided with 190 rounds.
Despite the swept wings Lockheed retained the wingtip tanks, similar to Lockheed’s recently developed XF-90 penetration fighter prototype. They had a different, more streamlined shape now, to reduce drag and minimize the risk of torsion problems with the outer wing sections and held 225 US gal (187 imp gal; 850 l) each. Even though the F-80E was conceived as a daytime fighter, hardpoints under the wings allowed the carriage of up to 2.000 lb of external ordnance, so that the aircraft could, like the straight-wing F-80s before, carry out attack missions. A reinforced pair of plumbed main hardpoints, just outside of the landing gear wells, allowed to carry another pair of drop tanks for extra range or single bombs of up to 1.000 lb (454 kg) caliber. A smaller, optional pair of pylons was intended to carry pods with nineteen “Mighty Mouse” 2.75 inches (70 mm) unguided folding-fin air-to-air rockets, and further hardpoints under the outer wings allowed eight 5” HVAR unguided air-to-ground rockets to be carried, too. Total external payload (including the wing tip tanks) was 4,800 lb (roughly 2,200 kg) of payload
The first XP-80E prototype flew in December 1953 – too late to take part in the Korean War, but Lockheed kept the aircraft’s development running as the benefits of swept wings were clearly visible. The USAF, however, did not show much interest in the new aircraft since the proven F-86 Sabre was readily available and focus more and more shifted to radar-equipped all-weather interceptors armed with guided missiles. However, military support programs for the newly founded NATO, esp. in Europe, stoked the demand for jet fighters, so that the F-80E was earmarked for export to friendly countries with air forces that had still to develop their capabilities after WWII. One of these was Germany; after World War II, German aviation was severely curtailed, and military aviation was completely forbidden after the Luftwaffe of the Third Reich had been disbanded by August 1946 by the Allied Control Commission. This changed in 1955 when West Germany joined NATO, as the Western Allies believed that Germany was needed to counter the increasing military threat posed by the Soviet Union and its Warsaw Pact allies. On 9 January 1956, a new German Air Force called Luftwaffe was founded as a branch of the new Bundeswehr (Federal Defence Force). The first volunteers of the Luftwaffe arrived at the Nörvenich Air Base in January 1956, and the same year, the Luftwaffe was provided with its first jet aircraft, the US-made Republic F-84 Thunderstreak from surplus stock, complemented by newly built Lockheed F-80E day fighters and T-33 trainers.
A total of 43 F-80Es were delivered to Germany in the course of 1956 and early 1957 via freight ships as disassembled kits, initially allocated to WaSLw 10 (Waffenschule der Luftwaffe = Weapon Training School of the Luftwaffe) at Nörvenich, one of three such units which focused on fighter training. The unit was quickly re-located to Northern Germany to Oldenburg, an airfield formerly under British/RAF governance, where the F-80Es were joined by Canada-built F-86 Sabre Mk. 5s. Flight operations began there in November 1957. Initially supported by flight instructors from the Royal Canadian Air Force from Zweibrücken, the WaSLw 10’s job was to train future pilots for jet aircraft on the respective operational types. F-80Es of this unit were in the following years furthermore frequently deployed to Decimomannu AB on Sardinia (Italy), as part of multi-national NATO training programs.
The F-80Es’ service at Oldenburg with WaSLw 10 did not last long, though. In 1963, basic flight and weapon system training was relocated to the USA, and the so-called Europeanization was shifted to the nearby Jever air base, i. e. the training in the more crowded European airspace and under notoriously less pleasant European weather conditions. The remaining German F-80E fleet was subsequently allocated to the Jagdgeschwader 73 “Steinhoff” at Pferdsfeld Air Base in Rhineland-Palatinate, where the machines were – like the Luftwaffe F-86s – upgraded to carry AIM-9 Sidewinder AAMs, a major improvement of their interceptor capabilities. But just one year later, on October 1, 1964, JG 73 was reorganized and renamed Fighter-Bomber Squadron 42, and the unit converted to the new Fiat G.91 attack aircraft. In parallel, the Luftwaffe settled on the F-86 (with more Sabre Mk. 6s from Canada and new F-86K all-weather interceptors from Italian license production) as standard fighter, with the plan to convert to the supersonic new Lockheed F-104 as standard NATO fighter as soon as the type would become available.
For the Luftwaffe the F-80E had become obsolete, and to reduce the number of operational aircraft types, the remaining German aircraft, a total of 34, were in 1965 passed through to the Türk Hava Kuvvetleri (Turkish air force) as part of international NATO military support, where they remained in service until 1974 and were replaced by third generation F-4E Phantom II fighter jets.
General characteristics:
Crew: 1
Length: 36 ft 9 1/2 in (11.23 m)
Wingspan: 37 ft 6 in (11.44 m) over tip tanks
Height: 13 ft 5 1/4 in (4.10 m)
Wing area: 241.3 sq ft (22,52 m²)
Empty weight: 10,681 lb (4.845 kg)
Max. takeoff weight: 18,464 lb (8.375 kg)
Zero-lift drag coefficient: 0.0134
Frontal area: 32 sq ft (3.0 m²)
Powerplant:
1× Allison J33-A-39 centrifugal compressor turbojet with 4,600 lbf (20 kN) dry thrust
and 27.0 kN (6,070 lbf) thrust with afterburning
Performance:
Maximum speed: 1,060 km/h (660 mph, 570 kn)
Cruise speed: 439 mph (707 km/h, 381 kn)
Range: 825 mi (1,328 km, 717 nmi)
Ferry range: 1,380 mi (2,220 km, 1,200 nmi)
Service ceiling: 50,900 ft (15,500 m)
Rate of climb: 7,980 ft/min (40.5 m/s)
Time to altitude: 20,000 ft (6,100 m) in 4 minutes 50 seconds
Lift-to-drag: 17.7
Wing loading: 51.3 lb/sq ft (250 kg/m²)
Thrust/weight: 0.249 dry
0.328 with afterburner
Armament:
4× 0.79 in (20 mm) M24 cannon (190 rpg)
2x wing tip auxiliary tanks with 225 US gal (187 imp gal; 850 l) each
Underwing hardpoints for a total ordnance load of 4,800 lb (2.200 kg), including
2× 1,000 lb (454 kg) bombs, up to 4× pods with nineteen unguided Mighty Mouse FFARs each,
and/or up to 8× 5” (127 mm) HVAR unguided air-to-ground rockets
The kit and its assembly:
The idea of a swept-wing F-80 had been lingering on my idea list for a while, and I actually tried this stunt before in the form of a heavily modified F-94. The recent “Fifties” group build at whatifmodellers.com and a similar build by fellow forum member mat revived the interest in this topic – and inspired by mat’s creation, based on a T-33 fuselage, I decided to use the opportunity and add my personal interpretation of the idea.
Having suitable donor parts at hand was another decisive factor to start this build: I had a Heller T-33 in store, which had already been (ab)used as a donor bank for other projects, and which could now find a good use. I also had an F-80 canopy left over (from an Airfix kit), and my plan was to use Saab J29 wings (from a Matchbox kit) because of their limited sweep angle that would match the post-WWII era well.
Work started with the fuselage; it required a completely new cockpit interior because these parts had already gone elsewhere. I found a cockpit tub with its dashboard from an Italeri F4U, and with some trimming it could be mounted into the reduced cockpit opening, above the OOB front landing gear well. The T-33’s rear seat was faired of with styrene sheet and later PSRed away. The standard nose cone from the Heller T-33 was used, but I added gun ports for the new/different cannon armament.
For a different look with an afterburner engine I modified the tail section under the stabilizers, which was retained because of its characteristic shape. A generous section from the tail was cut away and replaced with the leftover jet pipe from an Italeri (R)F-84F, slightly longer and wider and decorated with innards from a Matchbox Mystère IV. This change is rather subtle but changes the F-80 profile and appears like a compromise between the F-80 and F-94 arrangements.
The T-33 wings were clipped down to the connection lower fuselage part. This ventral plate with integral main landing gear wells was mounted onto the T-33 hull and then the Saab 29 wings were dry-fitted to check their position along the fuselage and to define the main landing gear wells, which had to be cut into them to match their counterparts from the aircraft’s belly.
Their exact position was eventually fixed when the new swept stabilizers, taken from a Hobby Boss F-86, were mounted to the tail. They match well with the swept wings, and for an odd look I kept their dihedral.
The fin was eventually replaced, too – mat’s build retained the original F-80 fin, but with all other surfaces swept I found that the fin had to reflect this, too. So, I implanted a shortened Italeri (R)F-84F fin onto the original base, blended with some PSR into the rest of the tail.
With all aerodynamic surfaces in place it was time for fine-tuning, and to give the aircraft a simpler look I removed the dog teeth from the late Tunnan's outer wings, even though I retained the small LERXs. The wing tips were cut down a little and tip tanks (probably drop tanks from a Hobby Boss F-5E) added – without them the aircraft looked like a juvenile Saab 32!
The landing gear was mostly taken over from the Heller T-33, I just added small consoles for the main landing gear struts to ensure a proper stance, because the new wings and the respective attachment points were deeper. I also had to scratch some landing gear covers because the T-33 donor kit was missing them. The canopy was PSRed over the new opening and a new ejection seat tailored to fit into the F4U cockpit.
A final addition was a pair of pods with unguided FFARs. AFAIK the Luftwaffe did not use such weapons, but they’d make thematically sense on a Fifties anti-bomber interceptor - and I had a suitable pair left over from a Matchbox Mystère IV kit, complete with small pylons.
Painting and markings:
Since the time frame was defined by the Fifties, early Luftwaffe fighters had to carry a bare metal finish, with relatively few decorations. For the F-80E I gave the model an overall base coat with White Aluminum from a Dupli Color rattle can, a very nice and bright silver tone that comes IMHO close to NMF. Panels were post-shaded with Revell 99 (Aluminum) and 91 (Iron Metallic). An anti-glare panel in front of the windscreen was painted in the Luftwaffe tone RAL 6014, Gelboliv (Revell 42).
For some color highlights I gave the tip tanks bright red (Feuerrot, RAL 3000; Revell 330) outer halves, while the inner halves were painted black to avoid reflections that could distract the pilot (seen on a real Luftwaffe T-33 from the late Fifties). For an even more individual touch I added light blue (Tamiya X-14, Sky Blue) highlights on the nose and the fin, reflecting the squadron’s color code which is also carried within the unit emblem – the Tamiya paint came closest to the respective decal (see below).
The cockpit interior was painted with zinc chromate green primer (I used Humbrol 80, which is brighter than the tone should be, but it adds contrast to the black dials on the dashboard), the landing gear wells were painted with a mix of Humbrol 80 and 81, for a more yellowish hue. The landing gear struts became grey, dry-brushed with silver, while the inside of the ventral air brakes were painted in Feuerrot, too.
Then the model received an overall washing with black ink to emphasize the recessed panel lines, plus additional panel shading with Matt Aluminum Metallizer (Humbrol 27001), plus a light rubbing treatment with grinded graphite that emphasized the (few leftover) raised panel lines and also added a dark metallic shine to the silver base. Some of the lost panel lines were simulated with simple pencil strokes, too.
The decals/markings primarily came from an AirDoc aftermarket sheet for late Fifties Luftwaffe F-84Fs. The tactical code (“BB-xxx” was then assigned to the WaSLw 10 as unit code, but this soon changed to a similar but different format that told about the unit’s task as well as the specific unit and squadron within it; this was replaced once more by a simple xx+yy code that was only connected to a specific aircraft with no unit reference anymore, and this format is still in use today) was puzzled together from single letters/digits from the same decal set. Some additional markings like the red band on the fuselage had to be scratched, but most stencils came from an all-bare-metal Luftwaffe F-84F.
After some more detail painting the model was sealed with semi-gloss acrylic paint, just the anti-glare panel and the di-electric fairings on the nose and the fin tip became matt.
A thorough kitbashing build, but the result looks quite plausible, if not elegant? The slightly swept wings suit the F-80 with its organic fuselage shape well, even though they reveal the designs rather baroque shape. There’s a sense of obsolescence about the F-80E, despite its modern features? The Luftwaffe markings work well on the aircraft, too, and with the red and blue highlights the machine looks more attractive despite its simple NMF livery than expected.
a photo of an air compressor fitted to the Berliet 120x 140 engine showing the drive being taken from the timing gears. This was a common way of doing things by Berliet
Interior of the combined compressor and pumping engine house at South Shaft.
The Holman built air compressor which fed the rock drills was situated on the right, and the Cornish pump on the left.
Merci beaucoup to xavnco2 for allowing me to use his excellence picture of this WW II, U.S. Army Air Compressor truck as the subject for this “digital illustration”. Xavnco2s’ original picture can be viewed here
Hope you enjoy......... (my madness)
US Army in World War II
Engineers and Logistics
by Rich Anderson
Engineers
It was perhaps fitting that the U.S. Army, with an officer corps heavily influenced by the teachings of the United States Military Academy (which was the first engineering school in the United States), should be lavishly equipped with engineer troops and equipment. The divisional combat engineer battalions were capable of performing most engineering tasks (including demolitions, obstacle emplacement, fortification, and light bridge building) for the division. Additional battalions from corps or army augmented divisional engineers for more extensive tasks. Corps battalions were assigned to the command of an engineer group headquarters, which consisted of an H&H Company and an engineer light equipment company. Normally there were between three and six battalions in an engineer group and one or two groups per corps or army.
Combat engineer battalions tended to have high esprit de corps; they rightly considered themselves to be elite specialists. In a pinch, combat engineers also could act as infantry and did so frequently. In the Battle of the Bulge, a handful of engineer battalions proved to be a vital asset to the beleaguered American Army.
In addition to the combat engineer battalions there were in the Army a number of other general engineer units. The Engineer Amphibian Brigade was designed to support amphibious operations and included an H&H Company, three boat-and-shore regiments, a boat maintenance battalion, a medical battalion, and a quartermaster, ordnance, and a signal company. A single amphibian brigade (with naval support) was capable of transporting and landing an infantry division. Later, the brigade was strengthened and re-designated as the Engineer Special Brigade. Six Engineer Special Brigades, numbered 1st to 6th, were eventually formed. The 1st served in the MTO, ETO and PTO, the 5th and 6th served in the ETO, the others all served in the PTO.
Engineer aviation regiments and battalions were designed to construct and maintain air bases. Aviation engineers included engineer airborne aviation battalions, which were designed to be air transportable; so as to repair airfields captured by airborne forces.
Engineer bridging units included heavy ponton (the word pontoon is properly pronounced ponton, and beginning in World War II, that is the way it has been spelled by U.S. Army Engineers) battalions (nineteen formed, allotted usually one to three per army), light ponton companies (usually one per engineer group), and treadway bridge companies (usually one per armored division, but held at corps).
Engineer general service regiments and battalions performed construction, repair, and maintenance duties of all kinds behind the front lines. Many general service battalions were formed as pools of unskilled labor troops and later were organized as regiments.
Engineer special service regiments (seven formed) contained highly skilled construction personnel and had a large allotment of heavy equipment. The remainder of the engineer corps was made up of various specialist units, topographic, water supply, railway, oil field, railway operating, and camouflage battalions. In addition, there were large numbers of separate companies and even specialist engineer detachments consisting of a few officers and men. Over 600 battalion-size engineer units were formed during the war.
Curiously, only the engineer combat regiments were broken up into separate battalions as a part of the pool concept in 1943. The H&H Company of the engineer combat regiments were re-designated as engineer combat groups in 1943. The other specialized engineer regiments were retained to the end of the war.
Source: www.militaryhistoryonline.com/wwii/usarmy/engineers.aspx
* Can you identify the various tools / items included in this image?
To the left of this photo, hidden by the dense undergrowth and years of fly-tipping, is a site of immense importance in the history of Cornish mining. It was here, at New Sump Shaft, that the first true Cornish Beam Engine, designed by Richard Trevithick, was put to work in August 1816. It worked continuously until 1912.
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If you intend to use any of my pictures, for any usage, you need to contact me first.
PLEASE VIEW IN THE LIGHTBOX ( Press L ).
Image Details
Camera........: Canon 60D
Lens..............: Canon 24-105mm F/4 L
Aperture........: f/7.1
ISO Speed....: 100
Exposure.....: 1/30s
Resolution....: 4957x3325 (without frame).
Photoshop
° Since I found the cars and pillar on the right of the original shot ( see below ) to be some really disturbing elements I copied half the car and mirrored it,
after positioning perfectly I copied the Mercedes logo from the original shot and pasted it on top. Of course now there ain't a steering wheel no more ;).
° Cropped.
° Brightness with luminosity mask made the car more shiny.
° A cooling photo filter with a banded gradient to get the blues in the reflection more out, a warming filter on the bottom ( normal gradient ).
° High pass sharpening ( see below ).
About
We went on a little week trip to Tenerife, I'll be posting many pictures of this terrific volcanic island in the Atlantic ocean.
The Mercedes Slr compressor was parked besides a Maybach at the entrance of a fancy hotel, of course I couldn't resist taking a shot.
° My photoshop tutorial on Layers, Masks, Selections & Channels.
° Channel mixer tutorial to remove lens flare spots.
You
All tips, tricks & criticism and honest opinions are highly appreciated.