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I should mention that I only made one quarter of this image and then digitally mirrored it. This is the reversed version, putting the opposite corner in the center. I remember the first time I was taught how to make a curve with straight lines in math class somewhere near the end of public school. (grade 7 maybe) It blew my mind and I've been doodling them ever since. (It;s in the center of this image, all the squares that make a curved diamond)
+++ 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 Gudkov Gu-1 was a Soviet fighter aircraft produced shortly after World War II in small numbers at the start of the jet age, but work on the Gudkov Gu-1 already started in 1944. Towards the end of World War II the Soviet Union saw the need for a strategic bombing capability similar to that of the United States Army Air Forces. The Soviet VVS air arm had the locally designed Petlyakov Pe-8 four-engined heavy bomber in service at the start of the war, but only 93 had been built by the end of the war and the type had become obsolete. By that time the U.S. regularly conducted bombing raids on Japan from distant Pacific forward bases using B-29 Superfortresses, and the Soviet Air Force lacked this capability.
Joseph Stalin ordered the development of a comparable bomber, and the U.S. twice refused to supply the Soviet Union with B-29s under Lend Lease. However, on four occasions during 1944, individual B-29s made emergency landings in Soviet territory and one crashed after the crew bailed out. In accordance with the Soviet–Japanese Neutrality Pact, the Soviets were neutral in the Pacific War and the bombers were therefore interned and kept by the Soviets. Despite Soviet neutrality, America demanded the return of the bombers, but the Soviets refused. Three repairable B-29s were flown to Moscow and delivered to the Tupolev OKB. One B-29 was dismantled, the second was used for flight tests and training, and the third one was left as a standard for cross-reference.
Stalin told Tupolev to clone the Superfortress in as short a time as possible. The reverse-engineering effort involved 900 factories and research institutes, who finished the design work during the first year. 105,000 drawings were made, and the American technology had to be adapted to local material and manufacturing standards – and ended in a thorough re-design of the B-29 “under the hood”. By the end of the second year, the Soviet industry was to produce 20 copies of the aircraft ready for State acceptance trials.
While work on what would become the Tupolev Tu-4 was on the way, the need for a long range escort fighter arose, too. Soviet officials were keen on the P-51 Mustang, but, again, the USA denied deliveries, so that an indigenous solution had to be developed. With the rising tension of international relationships, this became eventually the preferred solution, too.
While the design bureau Lavochkin had already started with work on the La-9 fighter (which entered service after WWII) and the jet age was about to begin, the task of designing a long range escort fighter for the Tu-4 was relegated to Mikhail I. Gudkov who had been designing early WWII fighters like the LaGG-1 and -3 together with Lavochkin. Internally, the new fighter received the project handle "DIS" (Dalnij Istrebitel' Soprovozhdenya ="long-range escort fighter").
In order to offer an appropriate range and performance that could engage enemy interceptors in the bombers’ target area it was soon clear that neither a pure jet nor a pure piston-engine fighter was a viable solution – a dilemma the USAAF was trying to solve towards 1945, too. The jet engine alone did not offer sufficient power, and fuel consumption was high, so that the necessary range could never be achieved with an agile fighter. Late war radials had sufficient power and offered good range, but the Soviet designers were certain that the piston engine fighter had no future – especially when fast jet fighters had to be expected over enemy territory.
Another problem arose through the fact that the Soviet Union did not have an indigenous jet engine at hand at all in late 1945. War booty from Germany in the form of Junkers Jumo 004 axial jet engines and blueprints of the more powerful HeS 011 were still under evaluation, and these powerplants alone did neither promise enough range nor power for a long range fighter aircraft. Even for short range fighters their performance was rather limited – even though fighters like the Yak-15 and the MiG-9 were designed around them.
After many layout experiments and calculation, Gudkov eventually came up with a mixed powerplant solution for the DIS project. But unlike the contemporary, relatively light I-250 (also known as MiG-13) interceptor, which added a mechanical compressor with a primitive afterburner (called VRDK) to a Klimov VK-107R inline piston engine, the DIS fighter was equipped with a powerful radial engine and carried a jet booster – similar to the US Navy’s Ryan FR-1 “Fireball”. Unlike the FR-1, though, the DIS kept a conservative tail-sitter layout and was a much bigger aircraft.
The choice for the main powerplant fell on the Shvetsov ASh-82TKF engine, driving a large four blade propeller. This was a boosted version of the same 18 cylinder twin row radial that powered the Tu-4, the ASh-73. The ASh-82TKF for the escort fighter project had a rating of 2,720 hp (2,030 kW) while the Tu-4's ASh-73TK had "only" a temporary 2,400 hp (1,800 kW) output during take-off. The airframe was designed around this massive and powerful engine, and the aircraft’s sheer size was also a result of the large fuel capacity which was necessary to meet the range target of at least 3.000 km (1.860 mi, 1.612 nmi).
The ASh-82TKF alone offered enough power for a decent performance, but in order to take on enemy jet fighters and lighter, more agile propeller-driven fighters, a single RD-20 axial-flow turbojet with 7.8 kN (1,754 lbf) thrust was added in the rear-fuselage. It was to add power for take-off and in combat situations only. Its fixed air intakes were placed on the fuselage flanks, right behind the cockpit, and the jet pipe was placed under the fin and the stabilizers.
Outwardly, Gudkov’s DIS resembled the late American P-47D or the A-1 Skyraider a lot, and the beefy aircraft was comparable in size and weight, too. But the Soviet all-metal aircraft was a completely new construction and featured relatively small and slender laminar flow wings. The wide-track landing gear retracted inwards into the inner wings while the tail wheel retracted fully into a shallow compartment under the jet pipe.
The pilot sat in a spacious cockpit under a frameless bubble canopy with very good all-round visibility and enjoyed amenities for long flights such as increased padding in the seat, armrests, and even a urinal. In addition, a full radio navigation suite was installed for the expected long range duties over long stretches of featureless landscape like the open sea.
Armament consisted of four 23 mm Nudelman-Suranov NS-23 cannons with 100 RPG in the wings, outside of the propeller arc. The guns were good for a weight of fire of 6kg (13.2 lb)/sec, a very good value. Five wet hardpoints under the fuselage, the wings outside of the landing gear well and under the wing tips could primarily carry auxiliary drop tanks or an external ordnance of up to 1.500 kg (3.300 lb).
Alternatively, iron bombs of up to 500 kg (1.100 lb) caliber could be carried on the centerline pylon, and a pair of 250 kg (550 lb) bombs under the wings, but a fighter bomber role was never seriously considered for the highly specialized and complex aircraft.
The first DIS prototype, still without the jet booster, flew in May 1947. The second prototype, with both engines installed, had its fuel capacity increased by an additional 275 l (73 US gal) in an additional fuel tank behind the cockpit. The aircraft was also fitted with larger tires to accommodate the increased all-up weight, esp. with all five 300 l drop tanks fitted for maximum range and endurance.
Flight testing continued until 1948 and the DIS concept proved to be satisfactory, even though the complicated ASh-82TKF hampered the DIS’ reliability - to the point that fitting the ASh-73TK from the Tu-4 was considered for serial production, even if this would have meant a significant reduction in performance. The RD-20 caused lots of trouble, too. Engine reliability was generally poor, and re-starting the engine in flight did not work satisfactorily – a problem that, despite several changes to the starter and ignition system, could never be fully cured. The jet engine’s placement in the tail, together with the small tail wheel, also caused problems because the pilots had to take care that the tail would not aggressively hit the ground upon landings, because the RD-20 and its attachments were easily damaged.
Nevertheless, the DIS basically fulfilled the requested performance specifications and was, despite many shortcomings, eventually cleared for production in mid 1948. It received the official designation Gudkov Gu-1, honoring the engineer behind the aircraft, even though the aircraft was produced by Lavochkin.
The first machines were delivered to VVS units in early 1949 - just in time for the Tu-4's service introduction after the Russians had toiled endlessly on solving several technical problems. In the meantime, jet fighter development had quickly progressed, even though a purely jet-powered escort fighter for the Tu-4 was still out of question. Since the Gu-1 was capricious, complex and expensive to produce, only a limited number left the factories and emphasis was put on the much simpler and more economical Lavochkin La-11 escort fighter, a lightweight evolution of the proven La-9. Both types were regarded as an interim solution until a pure jet escort fighter would be ready for service.
Operationally the Gu-1s remained closely allocated to the VVS’ bomber squadrons and became an integral part of them. Anyway, since the Tu-4 bomber never faced a serious combat situation, so did the Gu-1, which was to guard it on its missions. For instance, both types were not directly involved in the Korean War, and the Gu-1 was primarily concentrated at the NATO borders to Western Europe, since bomber attacks in this theatre would certainly need the heavy fighter’s protection.
The advent of the MiG-15 - especially the improved MiG-15bis with additional fuel capacities and drop tanks, quickly sounded the death knell for the Gu-1 and any other post-WWII piston-engine fighter in Soviet Service. As Tu-4 production ended in the Soviet Union in 1952, so did the Gu-1’s production after only about 150 aircraft. The Tu-4s and their escort fighters were withdrawn in the 1960s, being replaced by more advanced aircraft including the Tupolev Tu-16 jet bomber (starting in 1954) and the Tupolev Tu-95 turboprop bomber (starting in 1956).
The Gudkov Gu-1, receiving the NATO ASCC code “Flout”, remained a pure fighter. Even though it was not a success, some proposals for updates were made - but never carried out. These included pods with unguided S-5 air-to-air-rockets, to be carried on the wing hardpoints, bigger, non-droppable wing tip tanks for even more range or, alternatively, the addition of two pulsejet boosters on the wing tips.
There even was a highly modified mixed powerplant version on the drawing boards in 1952, the Gu-1M. Its standard radial powerplant for cruise flight was enhanced with a new, non-afterburning Mikulin AM-5 axial flow jet engine with 2.270 kgf/5,000 lbf/23 kN additional thrust in the rear fuselage. With this temporary booster, a top speed of up to 850 km/h was expected. But to no avail - the pure jet fighter promised a far better performance and effectiveness, and the Gu-1 remained the only aircraft to exclusively carry the Gudkov name.
General characteristics:
Crew: 1
Length: 12 m (39 ft 4 in)
Wingspan: 14 m (45 ft 11 in)
Height: 4.65 m (15 ft 3 in)
Wing area: 28 m² (301.388 ft²)
Airfoil:
Empty weight: 4,637 kg (10,337 lb)
Loaded weight: 6.450 kg (14.220 lb)
Maximum take-off weight: 7,938 kg (17,500 lb)
Powerplant:
1× Shvetsov ASh-82TKF 18-cylinder air-cooled radial engine, rated at 2,720 hp (2,030 kW)
1x RD-20 axial-flow turbojet with 7.8 kN (1,754 lbf) thrust as temporary booster
Performance
Maximum speed: 676 km/h (420 mph) at 29,000 ft (8,839 m) with the radial only,
800 km/h (497 mph/432 kn,) with additional jet booster
Cruise speed: 440 km/h (237 kn, 273 mph)
Combat radius: 820 nmi (945 mi, 1,520 km)
Maximum range: 3.000 km (1.860 mi, 1.612 nmi) with drop tanks
Service ceiling: 14,680 m (48,170 ft)
Wing loading: 230.4 kg/m² (47.2 lb/ft²)
Power/mass: 0.28 kW/kg (0.17 hp/lb)
Climb to 5,000 m (16,400 ft): 5 min 9 sec;
Climb to 10,000 m (32,800 ft): 17 min 38 sec;
Climb to 13,000 m (42,640 ft): 21 min 03 sec
Armament
4× 23 mm Nudelman-Suranov NS-23 cannons with 100 RPG in the outer wings
Five hardpoints for an external ordnance of 1.500 kg (3.300 lb)
The kit and its assembly:
This whif is the incarnation of a very effective kitbashing combo that already spawned my fictional Japanese Ki-104 fighter, and it is another submission to the 2018 “Cold War” group build at whatifmodelers.com. This purely fictional Soviet escort fighter makes use of my experiences from the first build of this kind, yet with some differences.
The kit is a bashing of various parts and pieces:
· Fuselage, wing roots, landing gear and propeller from an Academy P-47D
· Wings from an Ark Model Supermarine Attacker (ex Novo)
· Tail fin comes from a Heller F-84G
· The stabilizers were taken from an Airfix Ki-46
· Cowling from a Matchbox F6F, mounted and blended onto the P-47 front
· Jet exhaust is the intake of a Matchbox Me 262 engine pod
My choice fell onto the Academy Thunderbolt because it has engraved panel lines, offers the bubble canopy as well as good fit, detail and solid material. The belly duct had simply been sliced off, and the opening later faired over with styrene sheet and putty, so that the P-47’s deep belly would not disappear.
The F6F cowling was chosen because it looks a lot like the ASh-73TK from the Tu-4. But this came at a price: the P-47 cowling is higher, tighter and has a totally different shape. It took serious body sculpting with putty to blend the parts into each other. Inside of the engine, a styrene tube was added for a metal axis that holds the uncuffed OOB P-47 four blade propeller. The P-47’s OOB cockpit tub was retained, too, just the seat received scratched armrests for a more luxurious look.
The Attacker wings were chosen because of their "modern" laminar profile. The Novo kit itself is horrible and primitive, but acceptable for donations. OOB, the Attacker wings had too little span for the big P-47, so I decided to mount the Thunderbolt's OOB wings and cut them at a suitable point: maybe 0.5", just outside of the large main wheel wells. The intersection with the Attacker wings is almost perfect in depth and width, relatively little putty work was necessary in order to blend the parts into each other. I just had to cut out new landing gear wells from the lower halves of the Attacker wings, and with new attachment points the P-47’s complete OOB landing gear could be used.
With the new wing shape, the tail surfaces had to be changed accordingly. The trapezoid stabilizers come from an Airfix Mitsubishi Ki-46, and their shape is a good match. The P-47 fin had to go, since I wanted something bigger and a different silhouette. The fuselage below was modified with a jet exhaust, too. I actually found a leftover F-84G (Heller) tail, complete with the jet pipe and the benefit that it has plausible attachment points for the stabilizers far above the jet engine in the Gu-1’s tail.
However, the F-84 jet pipe’s diameter turned out to be too large, so I went for a smaller but practical alternative, a Junkers Jumo 004 nacelle from a Me 262 (the ancestor of the Soviet RD-20!). Its intake section was cut off, flipped upside down, the fin was glued on top of it and then the new tail was glued to the P-47 fuselage. Some (more serious) body sculpting was necessary to create a more or less harmonious transition between the parts, but it worked.
The plausible placement of the air intakes and their shape was a bit of a challenge. I wanted them to be obvious, but still keep an aerodynamic look. An initial idea had been to keep the P-47’s deep belly and widen the central oil cooler intake under the nose, but I found the idea wacky and a bit pointless, since such a long air duct would not make much sense since it would waste internal space and the long duct’s additional weight would not offer any benefit?
Another idea were air intakes in the wing roots, but these were also turned down since the landing gear wells would be in the way, and placing the ducts above or below the wings would also make no sense. A single ventral scoop (looking like a P-51 radiator bath) or two smaller, dorsal intakes (XP-81 style) behind the cockpit were other serious candidates – but these were both rejected because I wanted to keep a clean side profile.
I eventually settled for very simple, fixed side intakes, level with the jet exhaust, somewhat inspired by the Lavochkin La-200B heavy fighter prototype. The air scoops are simply parts from an Italeri Saab 39 Gripen centerline drop tank (which has a flat, oval diameter), and their shape is IMHO a perfect match.
Painting and markings:
While the model itself is a wild mix of parts with lots of improvisation involved, I wanted to keep the livery rather simple. The most plausible choice would have been an NMF finish, but I rather wanted some paint – so I used Soviet La-9 and -11 as a benchmark and settled for a simple two-tone livery: uniform light grey upper and light blue lower surfaces.
I used RAF Medium Sea Grey (Humbrol 165) and Soviet Underside Blue (Humbrol 114) as basic tones, and, after a black ink wash, these were lightened up through dry-brushed post-shading. The yellow spinner and fin tip are based on typical (subtle) squadron markings of the late 40ies era.
The cockpit as well the engine and landing gear interior became blue-grey (Revell 57), similar to the typical La-9/11’s colors. The green wheel discs and the deep blue propeller blades are not 100% in the aircraft's time frame, but I added these details in order to enhance the Soviet touch and some color accents.
Tactical markings were kept simple, too. The "38" and the Red Stars come form a Mastercraft MiG-15, the Guards badge from a Begemoth MiG-25 sheet and most of the stencils were taken from a Yak-38 sheet, also from Begemoth.
Finally, the kit was sealed with matt acrylic varnish (Italeri) and it received some mild soot stains and chipped paint around the cockpit and on the leading edges. Some oil stains were added around the engine (with Tamiya Smoke), too.
A massive aircraft, and this new use of the P-47/Attacker combo results again in a plausible solution. The added jet engine might appear a bit exotic, but the mixed powerplant concept was en vogue after WWII, but only a few aircraft made it beyond the prototype stage.
While painting the model I also wondered if an all dark blue livery and some USN markings could also have made this creation the Grumman JetCat? With the tall fin, the Gu-1 could also be an F8F Bearcat on steroids? Hmmm...
The top portion is reverse painted. Whoever designed the "spear" motif running from the gold peep-hole window through the speaker grill deserved a corner office, a prime parking spot and an extra week of holidays.
The TR-555 is a perfect example of form and function in perfect balance. It's a work of art in my books and is a bold exclamation of space age "googie" style!
Circa 1959....and it still works!
The Crown Radio Corporation was originally known as Asahi Radio Mfg. Company Ltd
"I've often said there's nothing better for the inside of a man than the outside of a horse."
-Ronald Reagan
Olympus OM-1 w M.Zuiko 40-150/2.8 Pro
ISO400 f/11 120mm -0.3ev
Single frame raw developed in DxO PhotoLab 8.7.2, colour graded in Nik 8 Color Efex and finished off back in PhotoLab.
Wollongong Harbour, Wollongong, NSW
I have a collection of my familys old film strips, and shot this while trying to hack together a way to transfer them to HD video footage for safe keeping. I kind of like the way it came out, so here it is...
Reversed my 17mm lens on my body to shoot this as a macro.
On a side note - approximately only 100k shutter actuations can be expected statistically from my E-P1. If I wanted to use my digital camera to capture each frame to create a video out of it:
100,000 actuations / 18 fps ~= 92 minutes of film footage before my camera shutter would die... :(
Guess I'm going to have to find a different solution.
This is how it's going to go down, folks. Each week, starting this Saturday, I will post a certain picture to the group. This picture will be of a tablescrap-esque item with hidden innards. Your challenge each week you choose to participate will be to figure out how it's built, and privately show or explain to me your solution. The catches:
• There may be -- and often will be -- more than one correct solution. As long as you achieve the same result, it's acceptable.
• I will put limitations on how each one may be built (e.g., "no headlight bricks")
You will have a week (until the next Friday night) to reverse-engineer mine and present to me the results. I will keep a running tally of everyone who enters, and at the end of each cycle I will award one point to each person who correctly builds the item, as well as reveal my own solution.
I will give a follow-up question to everyone who solves the original; solving this gains you an extra point!
There is no one "best" solution to many of these; and as such, everyone who solves an item correctly earns a point, no matter who else solves it, who solves it first, or how exactly it's solved. Every solution must be approved by myself, of course, to prevent any irrelevant entries.
Prizes:
1st place: A small assortment of custom parts made by L.D.M., a microtank, and a small set (small set TBD).
2nd place: The pure pride that comes from having beaten nearly everyone else.
There's no need to sign up. You could enter every week, every other week, or only once; the more you enter, though, the more points you could get! It's entirely your choice each cycle.
Be prepared!
I saw a guy on the bus talking on his phone like this, so had to do it to both explain it to others and try it myself (not in public).
a trial of using double lens reverse macro technique for microphotography on a cross section of a plant root.
55-250IS@250mm on 500D body with 18-55IS@18mm reverse mounted. This was mounted above an old microscope (with viewing optics removed) to use the mount and light for lighting and micro adjustement of focus. Shake is a major issue and this set up requires alot of light, so even with the microscope illumination, i used both lenses wide open, ISO 6400, Av with -1Ev for 1/320s exposure.
lens set up gives a calculated magnification of 250/18=13.8x. On a canon APS-C 1.6x crop factor this gives a FOV of approximately 1.6mm. After softening and noise, resolution is a little shy of the micrometer range.
Reversed lens macro. Bought this solely to photograph it. I'm guessing it tastes like broccoli since it smells like it.
Taken with a 24mm reversed onto extension tubes. A hinged hot shoe allows the flash to lean out over the stack. A DIY snoot fires the light in front of the lens.
Aaron and I were just driving around the backwoods of Slab City looking for something new. We ended up totally off road, fairly lost when we came across the gem. We have absolutely no idea how it ended up completely upside down and stripped, yet not crushed like most flipped over cars would be.
Exposure: 4 minutes @ f/8, 200 ISO. Full moonlight only.
GB Railfreight Class 92, 92006 - fresh out of Brush after over 13 years in store - propels miscreant sister locomotive 92033 back out of Crewe station towards the Down Holding Siding.
The pair had been on a test run to Carlisle in the morning but 033, which was leading north, had encountered issues and the run was caped at Preston. 033 was on test itself after some recent issues/repairs but also acting as "insurance" for the long-time stored 006.
However, the tables were turned, as 92 006 dragged 92 033 south from Preston to Stafford on 0Z69, then round its stricken stablemate there before hauling the pair back to Crewe.
It looks cooler this way.
Featured on Life In Plastic: nerditis.com/2014/08/08/life-in-plastic-toy-review-crimso...
Creator : Fredrik Owesen
Reverse-engeniered from his photo
This is my favorite among his puffy stars models, but it's not the easiest.
Nice "reverse sunset" tonight with the setting sun's light reflecting off the clouds to the east and southeast.
With this reverse, the original owner of two of the Bosnian postcards is revealed. it is Leutnant Richter who apparently found himself in a Bosnian company and sent both cards to his wife.
3642 rests at Clyde after hauling 6S79 from Sydney Central. Here the train will reverse direction with 4520 then leading back to Central - 9/9/2013
The NSW Rail Transport Museum brought 2 Heritage Steam locomotives (3642 & PHMs 3265), 3 Heritage Diesel Locomotives (4001-4306-4520) and assorted "Southern Aurora" and normal wooden excursion cars to Central. For the Queens Birthday long weekend under the "Great Train Expo".
Where 3642 & 4520 push pulled between Central & Clyde/Hurstville on shuttles and 3265 was on display at platform 5.
4001 & 4306 ran a 'Mini' Southern Aurora tour on the Saturday and Sunday nights around the outskirts of Sydney for 4 hours.
the backlit reverse of the "Arlington" tessellation, as named by Jorge Jaramillo.
Really, it's just an exploration of box pleating (a common technique for uniaxial, representational origami) combined with tessellations ( that has more dimensions with which to contend.)
Or perhaps more appropriately: I like taking shots of things using a light table.
on the reverse:
Grand Trunk 559
Niagra Falls, Ontario 7/16/20
Raymond from Oldtimetrain website added this information:
"My research indicates it is S-1-f class 2-8-2 559 built MLW 53929 1913. Re#3464. Retired 1961."