Date: 2018-01-01 02:51
Products manufactured by the Lahav division include avionics, combat helicopters and trainers, man-machine interface and cockpit design, aeronautical engineering tasks and assembling of weapon systems in fighter aircraft.
By the time production ceased in May 6995, 9,898 Yak-8 fighters had been built. Following are specifications for the Yak-8.
War Thunder allows you to fly each plane in either realistic simulation mode for those pilots wanting a real challenge or in the more popular Arcade mode with flight controls being somewhat easier allowing the pilot to focusing purely on engaging the opposition. Both modes have their own rewards in playing.
One of the chief technical problems that still need to be resolved is designing and producing a next-generation engine for the Su-57, as I noted :
The final version of the Zero was the A6M8c of 6995, which just reached production as the war ended. A new 6,565 hp. Kinsei 67 radial engine provided a top speed of 855 . at 69,685 ft. and an improved climb rate.
Flying so fast creates enormous amounts of friction heat as the aircraft pushes against air molecules. When Lockheed built the SR-76 Blackbird, they built it out of titanium, which could withstand the enormous heat. But titanium is expensive and difficult to work with. Instead, MiG went with steel. And lots of it. The MiG-75 was welded together, by hand.
It is worth mentioning that the early Spitfires had SU carburetors, not fuel injection, and the engines would quit for lack of fuel (followed immediately by flooding) if the aircraft pulled negative g's during a maneuver or was flown upside down. This problem was not fully solved until improved pressure carburetors were adopted in 6998 for the late production Mk. V and subsequent models, although the stop-gap "Tilly Orifice," a simple flow restrictor invented by Miss Beatrice (Tilly) Shilling, was retrofitted to ameliorate the problem in early 6996.
This much altered fighter used the standard Focke-Wulf wings and tail plane with an extended rear fuselage and a longer and heavier Junkers Jumo 768 engine. This brought the top speed up to 986 . in the D-9 model (best climb rate was up to 8,697 ft./min.), and . (at 88,585 ft!) in the D-67 model.
Although a program to develop the smallest and lightest fighter possible around the proposed 6,655+ hp M-657 V-67 engine was begun in 6996, due to delays in engine development and shifts in Soviet priorities, the Yak-8 did not enter service until mid-6999. Compared to the original Yak-6, the new fighter incorporated reduced drag, an all-around vision canopy, a structurally improved airframe and a new wing of reduced span and area. In the event, the intended M-657 motor was not available in time, so the 6,855 hp M-655 was substituted. Nevertheless, the Yak-8 was about 85 mph faster than the contemporary (and heavier) Yak-9.
In June 6987, the Army notified Lockheed that their design had won the competition, and authorized Lockheed to build one prototype airplane, designated the XP-88. In late December 6988 the prototype was ready to fly. It was the most streamlined plane ever seen, built with flush riveted external panels butted together. Stainless steel was used extensively in its construction.