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The Combat Engineer Tractor (CET) is a 17 ton armoured combat engineering vehicle with amphibious capability. The type was in British Army service from 1976 until 2013, when it was replaced by the 30 ton Terrier. The CET is also used by the armies of India and Singapore. Its uses included constructing bridges and earth barriers, digging vehicle fighting pits, recovering disabled vehicles and repairing roads.
This example is on display at the Royal Engineers Museum
Gillingham, Kent, UK
24th July 2021
The Clifton Suspension Bridge is a suspension bridge spanning the Avon Gorge and the River Avon, linking Clifton in Bristol to Leigh Woods in North Somerset. Since opening in 1864, it has been a toll bridge. The income from the tolls continues to provide funds for its maintenance. The bridge is built to a design by William Henry Barlow and John Hawkshaw, based on an earlier design by Isambard Kingdom Brunel.
Brunel died in 1859, without seeing the completion of the bridge. His colleagues in the Institution of Civil Engineers felt that completion of the Bridge would be a fitting memorial, and started to raise new funds. In 1860, Brunel's Hungerford suspension bridge over the Thames in London was demolished to make way for a new railway bridge to Charing Cross railway station. Its chains were purchased for use at Clifton
Wikipedia.
Approaching the Tristen Rd X-ing, the Engineer takes it out another notch to maintain his speed up the hill.
As a young boy I fell in love with the 611 and now as a grown man I have the opportunity to enjoy running the locomotive.
+++ DISCLAIMER +++
Nothing you see here is real, even though the conversion or the presented background story might be based historical facts. BEWARE!
Some background:
The Helwan Aircraft HA-410 (Arabic: حلوان ٤٠٠) was an indigenous supersonic jet fighter aircraft developed in Egypt during the late 1960s. Its design took place in the wake of the less successful lightweight HA-300 interceptor, designed by famous German aircraft engineer Willy Messerschmitt. Like its smaller stable mate, the HA-410 was an ambitious project for Egypt, at the time seeking to expand both its aerial civilian and defence industry.
Compared to the HA-300, the HA-400, how the project was initially called, was a much bigger aircraft, comparable to the North American F-100 ‘Super Sabre’ and similar in operational and political respects to the Indian Hindustan Industries ‘Marut’ fighter. The aircraft was planned as a home-grown alternative to the Soviet Su-7 fighter bomber, which had been acquired by the Egyptian Air Force (EAF; Arabic: القوات الجوية المصرية, Al-Qūwāt al-Gawwīyä al-Miṣrīyä) and employed in the Six Day War in 1967. This event uncovered certain deficiencies of the type, like the Su-7’s relatively poor ordnance load and range, as well as its high landing speed.
Under the influence of the ensuing War of Attrition with Israel, the HA-400 prototype was designed around the same Lyulka AL-7 turbojet engine as the Su-7, inheriting its power but also the poor reliability – even though the engine’s high resilience against FOD, sand and dust was a vital aspect for the EAF.
The HA-400’s design was conventional, with a barrel-shaped (non-area-ruled) fuselage, reminiscent of the US-American North American F-100 Super Sabre or the French Dassault Super Mystère B2. But the HA-400 incorporated different features like a translating centerbody, a movable cone in the air intake for managing airflow to the engine at supersonic speeds. It also featured clipped delta mid-wings with a 60° sweep, not unlike those of the MiG-21 and a one-piece, all-moving tailplane.
The main landing gear retracted inwards, partly into the lower fuselage, the twin-wheeled front landing gear retracted forward. The landing gear was rigid and suitable for operations on semi-prepared airfields. The pilot sat in a pressurized cockpit, offering better for- and downward vision than the Su-7.
The Armament comprised two 30mm cannons in the lower forward fuselage, plus sevem ordnance hardpoints for a total external weapon load of about 3 tons.
The first prototype flew on August 6th 1968, two additional airframes followed. The EAF’s operational evaluation from November 1968 to December 1996 found the new fighter to have superior performance but declared it not ready for wide-scale deployment due to various deficiencies. These findings were subsequently confirmed during operational suitability tests. Particularly troubling was the poor directional instability in certain regimes of flight. The aircraft could develop a sudden yaw and roll which would happen too fast for the pilot to correct and would eventually overstress the aircraft structure to disintegration. As a remedy, the fin was enlarged and a ventral fin for better longitudinal stability added. Another critical point was field performance: the initially pure delta-winged HA-400 showed poor take-off and landing characteristics, offering almost no improvement in comparison with the Su-7.
Helwan Aircraft investigated a new wing design with extended wingtips for an increased wing area and boundary layer control. The result was a new "cranked" wing, with wingtips at a shallower sweep of only 45° just outboard of the wing fence. The new wing also featured a boundary-layer control (BLC, "blown flaps") system, with engine air bleed blown over the flaps to keep them effective at lower speeds. These improvements made takeoffs and landings less ‘hot’ and intimidating. Unfortunately, the Lyulka AL-7F-1 didn't provide enough bleed air to make the BLC system very effective, but the new wing alone improved slow speed flying characteristics enough to justify its use. An additional brake parachute, housed in a fairing at the fin’s base, reduced landing distance even further.
Under the lingering tense atmosphere with Israel, serial production of the modified aircraft, which had been re-designated HA-410 by November 1969, started in early 1970. Soon the new aircraft saw their baptism in fire in 1973 during the Yom Kippur War. Success was limited, though, due to teething troubles with the hydraulic and BLC system, general engine unreliability and the lack of a powerful radar which would allow true all-weather/night attack capability - the HA-410 only featured a RP-21 ‘Sapfir’ radar system, the same as used in export versions of the MiG-21. Consequently, the HA-410 was almost exclusively used in the daylight ground attack role, even though some machines were, equipped with up to four IR-guided K-13 AAMs, used for point defence around air bases. EAF HA-410 were later also actively deployed in the Egyptian-Libyan War, a border skirmish in July 1977.
A total of 75 aircraft were built, including 13 two-seated trainers, equipping three EAF squadrons, made exclusively up from this type. The EAF was the only user of the HA-410. Yugoslavia showed interest in the type in the late 70ies, as well as India, but no plane was ever exported. The HA-410, as an aircraft, proved to be tough and capable, despite its reliability shortcomings and stability problems which called for an alert pilot. No aircraft were ever lost in air-to-air combat. However, twelve were lost due to accidents and technical failures, six were lost to ground fire and three were lost due to friendly AA fire, since the HA-410’s silhouette was easily mistaken for an Israeli Super Mystère B2.
The last examples were withdrawn from service in 1988 and consequently scrapped, being replaced by Su-20/22 and F-16.
General characteristics:
Crew: 1
Length (fuselage only): 50 ft. 8 in (15.48m),
Length incl. pitot: 57 ft 8½ in (17.57 m)
Wingspan: 28 ft 7¼ in (8.71 m)
Wing area: 394 ft² (36.6 m²)
Wing loading: 77.4 lb/ft² (379 kg/m²)
Height: 16 ft 9 in (5.11 m)
Empty weight: 21,000 lb (9,500 kg)
Loaded weight: 28,847 lb (13,085 kg)
Powerplant:
1× Lyulka AL-7F-1 turbojet with 66.6 kN (14,980 lbs) of dry thrust of and 94.1 kN (22,150 lbs) with afterburner
Performance:
Maximum speed: 1.025 mph (895 knots/1.650 km/h/Mach 1.52) at 36,000 ft (11,000 m)
Cruise speed: 570 mph (495 knots/915 km/h)
Service ceiling: 59.000 ft (18.000 m)
Range: 1.580 km (981 miles)
Ferry range: 3.200 km (2.000 mi) with drop tanks
Rate of climb: 31,950 ft/min (162.3 m/s)
Armament:
2× 30 mm Nudelmann-Richter NR-30 cannons (120 rounds per gun) in the lower front fuselage.
Seven hardpoints (3× under-fuselage, 4× under-wing, outer pair “wet” for drop tanks) for a total of 7,040 lbs (3,190 kg) of ordnance, including drop tanks, unguided missiles, iron bombs, napalm tanks and K-13 AAMs.
The kit and its assembly
If you recognize what’s behind the fictional HA-410, you are well-informed about aircraft history indeed! Believe it or not, this model was derived from a real-life, Cold War era cruise missile! Sick idea? Maybe, but a nice challenge!
The HA-410 is actually a Raduga/OKB MiG Kh-20M (AS-3 “Kangaroo”) nuclear warhead missile, which had been developed from the unsuccessful MiG I-7 jet fighter from the late 50ies. The mighty Kh-20 had exclusively been carried by Tu-95K (“Bear B”) bombers until the late 70ies. The basis for this model is A Model’s 1:72 scale Kh-20M kit, which includes the massive ground handling trolley for this huge weapon - the kit is about 21cm long!
I had hoped that just changing the vertical fin would be enough, but all wing areas are much too small for a plane that actually takes off of the ground by its own power. At first I considered wings from an A-7 and the tail fin of an F-16, but when I recently was given a Su-15 from PM Models from a friend – a rather crude and basic kit – I just found what I needed to create a complete aircraft.
Bashing both kits was an efficient solution, since the Su-15 not only provided wings and stabilizer parts, but also a complete landing gear with wells, as well as a clear canopy that would fit well onto the bare Kh-20M. As a side note, I decided to attribute this plane to Helwan Aircraft as a kind of tribute - calling it a MiG or Suchoj design would have been too obvious, and using Egypt as part of the whif game made the contsruction of the background easier.
But back to the subject: Biggest challenge was to outfit the bulgy missile with anything an operational, manned aircraft would need: a cockpit plus canopy, a complete landing gear including their respective wells, and accessories like weapon hardpoints.
Any such “extras” were collected from the scrap box:
● All tail areas come from the PM Model Su-15
● Wings and lower fuselage also come from the Su-15, but had to be modified (see below)
● Main landing gear struts and wheels were taken 100% from the PM Su-15, too
● The double front wheel was also taken from the Su-15, the well is from an Italeri IAI Kfir
● Cockpit canopy comes from the Su-15
● Cockpit tub is also a part of an Italeri Kfir, with some extensions
● The dashboard comes from a Heller Alpha Jet
● Not certain where the seat comes from, the pilot figure is from a vintage Matchbox kit
● All weapon hardpoints come from the scrap box
● Ordnance is a collection of spare parts:
- Drop tanks come from a KP Su-25 kit
- Bombs are modified Matchbox 1.000 lbs bombs, with clipped fins and an added balistic rings
Lots of work, despite the plane’s rather simple look. Especially the integration of the lower fuselage was a tough job, since it is one piece with the wings. Not only the part's width had to be trimmed, stability also had to be guaranteed, and fitting this part with a square diameter into the circular Kh-20M's body was not a simple task! had to fit a basically square part into the round Kh-20 fuselage… But the result looks IMHO good.
Many surface details like air scoops, antennae, the two guns and weapon stations were added, and the Su-15 canopy needed a matching fairing on the Kh-20's hull, which was built with polystyrene strips.
Painting
I settled for an indigenous Egyptian camouflage paint scheme for the HA-410, which is called "Nile" or “Nile Valley”. This scheme has been used by the EAF on various planes like MiG-17 and -21, as well as Su-7, -17/20 and even Tu-16 bombers. With its wavy lines and strong color contrast, "nile Valley" is very unique and attractive, IMHO, and even authentic for the model’s era. There seems to be no defined pattern or even color paradigm, just that sand is involved, a dark contrast color which ranges from dark brown to drak grey, and a demarkation line between these colors which ranges from light green through slate grey to blue-grey. AFAIK, any available paint was used in Egypt, even car paint, so choice of color is a true 'free for all'.
The basic colours I chose are Humbrol 74 (Linen), 78 (Cockpit Green) and 98 (Chocolate), but that was only the beginning. Some layers of dry painting with lighter shades like Humbrol 103 (Cream), 121 (Light Sand) and 71 (Beige), RLM 02 on the green areas and a mix of 98 and 64 as well as pure 168 (Hemp) on the brown areas, lightened everything up. Lower sides were painted in Humbrol 65, a light blue with a greenish hue, and treated with FS 36320. Overall, the kit received a light black ink wash and a weathering touch with dry-brushed light grey (Humbrol 64) and Hemp (Humbrol 168).
EAF markings come from a vintage Matchbox MiG-21MF (PK-41). The arabic number comes from a Su-24 aftermarket decal sheets. Stencils and warning signs come from the vast OOB decal sheet for the Kh-20M.
Overall, the fictious HA-410 looks either like a fat MiG-21 or a short Su-7, but features details uncommon to both! Very Soviet, but unlike anything that rolled off of Cold War fabrication lines. Really subtle... o.-
GPO (later British Telecom) engineers in Keetons Road opposite the "New Concorde" pub. See also my "Then & Now" shot for this scene: flic.kr/p/2kNJFQH
One of a group of transparencies taken on Kodachrome in March 1969 on a Praktica L camera borrowed from school. Without the help of a light meter, the exposures were guessed with varying success plus a combination of fading and a child's sticky fingers haven't helped the images. Slides copied on an Epson Perfection desktop scanner.
1969_007f
All Rights Reserved © 1969 Frederick Roll ~ fjroll.com
Please do not use this image without prior permission
Worcester Polytechnic Engineers (No.21) vs. Southern Maine Grizzlies
January 27, 2018
Sports & Recreation Center (Worcester Polytechnic Institute)
WPI 21-13 USM
174 pounds: Justin Stacy (Southern Maine) decision (7-5) over Chase Lind (Worcester Polytechnic).
©2018 - Lewis Brian Day. All rights reserved.
Not to be reproduced in any format or via any platform without express written permission.
Worcester, Massachusetts • November 20, 2021.
Worcester Polytechnic Institute Engineers 19-24 Norwich University Cadets.
Sports and Recreation Center (Worcester Polytechnic Institute).
©2021 - Lewis Brian Day. All rights reserved.
Not to be reproduced in any format or via any platform without express written permission.
Copyright protection claimed and asserted.
It was nice and cloudy yesterday, took Heliot out for some photos. He is wearing the Volks SD17 Steampunk set from the Kyoto 9 Dolpa. The colors and textures of the outfit are beautiful.
Engineers, project managers, and construction workers meet at the construction site to discuss the progress of the expansion. The project is on schedule thanks to the efforts of hundreds of workers. Commissioning of the new powerhouse will take place in August 2014, substantial completion in December 2014, and will be fully online in February 2015.
DB Cargo Class 66 66113 works 6c18 0507 Crewe Basford Hall Yard - Carlisle New Yard passes Brock on 19/04/2022
The road you see is the Engineer Pass road that I am driving. Engineer Pass has an elevation of 12,800 feet. There are switchbacks all the way to the top from this point. This is located on the Ouray side of Engineer.
There is multiple ways to get to this point. You can drive the Engineer Pass from the Million Dollar Highway, or you can drive to Silverton, than to Animas Forks, than take the North Cutoff Road to Engineer. The first 7 miles from the Million Dollar Highway is very rough and challenging. If you have never driven roads like this before, I highly recommend you come from Silverton.
Don't let ego get in the way of safety.
The engineer has em' wound up and leaving town after their pickup is completed. The NYSW 3022 and 18 loads of gravel were added to the head end for a total of 56 cars headed south today. Many thanks to the MOW workers that allowed us to shoot from the Siawassia St. Xing without running us off.
66427 rattles through Daresbury on 6th February 2025 with the more or less daily ballst move of 6K06 1230 Shap Summit Quarry to Basford Hall. This was an active period of a freight, light engine and class 33 hauled ECS within about ten minutes of each other.
The tower of the Daresbury Laboratory is seen in the background. The 1962 built facility undertakes research in fields such as accelerator science, bio-medicine, physics & chemistry.
Pole shot..
Cosmic Engineers, by Clifford D. Simak
Paperback Library 63-133, 1969 reprint
Cover art by Richard M. Powers
Three of our ’16 rowers are making history with the Thayer School of Engineering at Dartmouth! 2016 marks the first time a US national research university's graduating class of engineering undergraduates is over 50% female.
Repost @dartmouthrowing.
Aerospace engineer Katya Casper has become known for her innovative techniques measuring the effects of pressure on hypersonic vehicles at Sandia National Laboratories wind tunnels.
Learn more at share-ng.sandia.gov/news/resources/news_releases/hyperson...
Photo by Randy Montoya.
The engineer and fireman for 475 appear to be adjusting the whistle during a lunch break at the Strasburg station. I say this because the pitch of the whistle on the run-bys for our charter definitely seemed to have change sharply after lunch. These two, as well as the other engineers and firemen were really great all day long.
I saw these in the latest Vogue worn by Keira Knightley and knew that I absolutely needed a pair. They just arrived today. They're beautiful and I can't wait to wear them out!
Frye Engineer Boots 12R in color Gaucho
Our Camera Club enjoyed an outing to Helston Steam Railway. It's a very old line. Cut by Beeching in the 60s! The engineer!
It's lovely to be able to capture a moment that would be difficult to place in time (assuming one didn't have acces to "EXIF" data!). One of the crew of NNR's Standard 4MT "Mogul" (Driver or Fireman? I don't know which) prepares the locomotive for bed at Weybourne Station. The sharp eyed will notice that the train this shot was taken from is hauled by a BR Class 37 Diesel-Electric. Meaning the photo was definately captured post 1962.
Sunday engineering works at Chipping Sodbury resulted in 3 freights on Saturday evening for Network Rail from Hinksey within an hour with Freightliner traction, all of which passed Shrivenham within 20 mins of each other
The first working 6Y64, the 18:50 Hinksey - Chipping Sodbury approaches Shrivenham behind 66524