1305 / FL
One MiG-9 airframe was to be reengined with a single 1,470-daN (1,500-kg st) TR-1A turbojet developed by A M. Lyulka. While matching the performance level of the production model, the design takeoff weight of the FL was 350 kg (770 pounds) lower.
To fit the TR-1A—the first jet engine developed and built entirely in USSR—into the airframe in place of the two BMW 003s, the tail section of the fuselage had to be modified. Moreover, the engineers left room for an afterburner then in the works that would boost the thrust to 1,960-2,450 daN (2,000-2,500 kg st).
The 1-305 was an important aircraft first and foremost because of its built-in potential. The cannon arrangement was again modified; all three arms were now on the same horizontal plane. One experimental N-37 (120P) with forty-five rounds occupied the middle space, with one NS-23 (115Р) with 80 rpg on either side. The 1-305 featured a pressurized cockpit and an ejection seat. To improve the aircraft’s operational efficiency, most of the systems were to have been upgraded with the RSIU-10 transceiver, the Baryum-1 IFF, the N1-46 ground position indicator, and the Ton-3 direction finder.
The 1-305 airframe was almost completed at the end of 1947 Unfortunately, the TR-1A turbojet burst soon afterward on the test
For the FL, the armament arrangement was modified once more. The three cannons were placed on the same horizontal plane |
bench At that time a brand-new aircraft, the 1-310 S (commonly known as the MiG-15) looked like a more promising venture As a result the FL was discontinued.
Specifications
Span, 10 m (32 ft 9.7 in); length, 9.7 m (31 ft 9.8 in); height in level flight position, 3.2 m (10 ft 9.9 in); wheel track, 1.95 m (6 ft 4.8 in); wheel base, 3 32 m (10 ft 10.7 in), wing area, 18.2 m2 (195.9 sq ft); takeoff weight, 4,570 kg (10,072 lb); fuel, 1,485 1 (386 US gal); wing loading, 261 kg/m2 (53.5 lb/sq ft).
Performance
Max speed, 885 km/h at 5,000 m (478 kt at 16,400 ft); max speed at sea level, 897 km/h (484 kt); climb to 5,000 m (16,400 ft) in 4 86 min; to 10,000 (32,800 ft) in 13.24 min; service ceiling, 13,400 m (43,950 ft); landing speed, 155 km/h (84 kt); range at 10,000 m (32,800 ft), 1,050 km (652 mi), takeoff roll, 815 m (2,675 ft); landing roll, 665 m (2,180 ft).