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

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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).

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