to consist of two VYa cannon in the undernose pod with 150 rounds each and four Berezin UBK machine guns mounted in the wing roots. It made its first flight on 28 January 1943 and demonstrated a top speed of and a time to 5,000 meters of 6.3 minutes. Flight testing was stopped on 10 February when the floatless carburetors had to be sent to TsIAM (Tsentrahl'nyy Institoot Aviatsionnovo Motorostroyeniya—Central Institute of Aviation Motors) for adjustment. There were continuous problems with these and they delayed the entire project until it was cancelled in October 1943. The service designation MiG-5 was reserved for the production version of this aircraft, as demonstrated in the NKAP order of 2 October 1941, which instructed Zavod No. 1 to begin manufacture of the MiG-5 after the completion of its State acceptance tests. Other known designations for the aircraft include the DIS-200 and Idzeliye 71, its factory designation. The bomber version, if it had entered production, might have been known as the MiG-2. Two prototypes are known to have been built, but some records suggest that others were also built. The original order called for three aircraft and was amended later for two additional aircraft with M-82 engines. Some sources quote dates for the latter version's first flight of January 1942 and 15 October 1941, which could be an indication that two of the latter version were completed, or they could simply be clerical errors. Variants DIS – basic designation DIS-T – initial prototype with 2 × Mikulin AM-37 inline engines with 1,400 hp each. DIS-IT – second prototype with 2 × Shvetsov M-82F radial engines with 1,700 hp each; other subtle revisions added to improved performance. MiG-5 – reserved Soviet Air Forces designation for production-quality aircraft (not used). Specifications (DIS-T) Comparable aircraft de Havilland Mosquito Tupolev Tu-2 Petlyakov Pe-2 Focke-Wulf Fw 187 Lockheed P-38 Lightning Messerschmitt Bf 110 Nakajima J5N Westland Whirlwind References Further reading DIS 1940s Soviet fighter aircraft Abandoned military aircraft projects of the Soviet Union Low-wing aircraft Aircraft first flown in 1941 Twin piston-engined tractor aircraft