Ilyushin DB-3 - Variants

Variants

TsKB-26

Proof-of-concept prototype

TsKB-30

First real prototype. Later modified, including removal of the armament, for long-range record attempts as the "Moskva". It flew from Moscow to Spassk-Dalny (7,580 km (4,710 mi)) in 24 h 36 min (an average speed of 307 km/h (191 mph)) mostly at 7,000 m (23,000 ft) under control of Vladimir Kokkinaki and A. M. Berdyanskij, then from Moscow to Miscou Island (New Brunswick, Canada) in 22 h 56 min. covering 8,000 km (5,000 mi) at 348 km/h (216 mph) average airspeed (Kokkinaki and Mikhail Gordienko).

DB-3 2M-85

Initial production model

DB-3 2M-86 (DB-3A)

Engines upgraded to M-86, other minor changes

DB-3 2M-87A (DB-3B)

Engines upgraded to the Tumansky M-87A

DB-3T

Torpedo bomber built in 1938, with either the M-86 or M-87 engine, armed with 45-36-AN or 45-36-AV torpedoes.

DB-3TP

Seaplane torpedo bomber built in 1938. No production.

DB-3M

First major upgrade powered by two M-87B or M-88 engines.

DB-3F

Replaced DB-3 in 1940-1944, see Il-4.

TsKB-56

Bigger variant from 1940 with changed configuration (higher wing, twin-tail) and powered by two AM-37 engines. Cancelled, after two prototypes were built, in favour of the Er-2.

DB-4

Production designation of the TsKB-56, which did not progress further than the two prototypes.

Il-4

The DB-3F was re-designated Il-4 in 1942

Il-6

Long-range bomber version powered by either 2 x Charomskiy ACh-30 diesel engines, or 2 x M-90 radial engines.