I-32D / IN

The decision was made in 1947 to replace the two RD-20 engines with one of the twenty-five Rolls-Royce Nene-1 engines just purchased in Great Britain. This turbojet delivered 2,185 daN (2,230 kg st). It had a centrifugal compressor, nine separate combustion chambers, and a single-stage turbine. Later this engine developed into the RD-45 and RD-45F built in factory no. 45 (hence its designation) in the USSR with a thrust of 2,224 daN (2,270 kg st). On this version the armament arrangement was again modified. The N-37 cannon was moved to the left lower part of the nose, and its muzzle did not jut out ahead of the engine air intake. The two NS-23s flanked the fuselage nose and were also set back from the air intake plane.

Like the FL, the FN was never completed because of the promise of the 1-310, whose flight tests started on 30 December 1947. By 1948 the MiG-9 was clearly obsolete.

Specifications

Span, 10 m (32 ft 9 7 in); length, 10.88 m (35 ft 8.3 in); wheel track, 1.95 m (6 ft 4.8 in); wheel base, 3.155 m (10 ft 4.2 in); wing area, 18.2 mz (195.9 sq ft).