The Ilyushin Il-4 

U.S.S.R.
U.S.S.R.

Sorry, No ID pictures yet

The Ilyushin Il-4 started as an improved version of the DB-3M, the DB-3f (Forsirovannyi, or intensive). The new type would be easier to build and to maintain in the field, had a modernized airframe with light alloy structures, and a redesigned nose that improved aerodynamics. It was extensively glazed, and the front turret of the DB-3M was replaced with a single manual position in the nose. Also extensive changes to the engines and fuel system were applied.

Versions:

Further pictures:

Ilyushin Il-4 in full flight
Ilyushin Il-4 in full flight

 

Technical data on the Ilyushin Il-4
Powerplant 2 × Tumanskii M-88B radial, rated at 1100 hp (820.04 kW) each Role during war
  • Medium Bomber
  • Torpedo Bomber
  • Reconnaissance Aircraft
Length 48 ft 7 inch Height 13 ft 5.5 inch
Empty weight 12787 lb Operational weight 24912 lb max
Wing Span 70 ft 4.5 inch Wing Aspect ratio 6.89
Wing Area 717.98 sq ft Service ceiling 30840 ft
Maximum speed 261 mph at 19685 ft Cruising speed unknown
Initial climb rate Climb to 16,405 ft in 12 min 0 sec Range 2361 miles max
Fuel capacity internal 440 Imp gal ( 528 US gal), plus provision for up to 176 Imp gal (211 US gal) of auxiliary fuel in 2 × 88 Imp gal (106 US gal) external tanks under the fuselage Fuel capacity external -
Machine guns
  • 1 × 0.3 inch ShKAS trainable forward-firing in the nose
  • 1 × 0.3 inch ShKAS trainable rearward-firing in the ventral hatch
  • 1 × 0.5 inch Beresin UBS or UBT trainable, 500 rounds
Cannons -
Bomb load Up to 5,952 lb carried in a weapons bay rated at 2,205 lb, and other external hardpoints. General disposables load consisted of an unspecified number of free-fall bombs of unspecified weight. Torpedoes/rockets 1 × 17.7 inch, 2,072 lb torpedo type 45-36-AN or 45-36-AV for low- and high level drop respectively
Crew 4: pilot, navigator/gunner, bombardier/gunner, radio operator/gunner Naval or ground based Ground and Naval
First flight (prototype) Januari 1940 Operational Service August 1941 - early 1950's
Manufacturer Ilyushin Design Bureau Number produced 5.256 total, 5.256 this version
Metric system
Length 14.81 m Height 4.1 m
Empty weight 5800 kg Operational weight 11300 kg max
Wing Span 21.45 m Wing Aspect ratio 6.89
Wing Area 66.7 m² Service ceiling 9400 m
Maximum speed 420 km/h at 6000 m Cruising speed unknown
Initial climb rate Climb to 5.000 m in 12 min 0 sec Range 3800 km max
Fuel capacity internal 2.000 liters, plus provision for up to 800 liters of auxiliary fuel in 2 × 400 liters external tanks under the fuselage Fuel capacity external -
Machine guns
  • 1 × 7,62 mm ShKAS trainable forward-firing in the nose
  • 1 × 7,62 mm ShKAS trainable rearward-firing in the ventral hatch
  • 1 × 12,7 mm Beresin UBS or UBT trainable, 500 rounds
Cannons -
Bomb load Up to 2.700 kg carried in a weapons bay rated at 1.000 kg, and other external hardpoints. General disposables load consisted of an unspecified number of free-fall bombs of unspecified weight. Torpedoes/rockets 1 × 450 mm, 940 kg torpedo type 45-36-AN or 45-36-AV for low- and high level drop respectively

Here is a quick overview of all different versions, without the full technical specifications:

Different versions of the Ilyushin Il-4 
Ilyushin DB-3f Improved version of the Ilyushin DB-3 lang-range medium bomber. Shortly after it's operational debut it was redesignated Ilyushin Il-4
Number built: 5.256
Ilyushin Il-4 Redesignated from the Ilyushin DB-3f. The forefather DB-3 already had several years of operational life, and was used in the Winter War 1939-1940 against Finland. The experiences gained with the DB-3 were all incorporated in the DB-3f.
During the 4 years of production of the DB-3f or Il-4, numerous changes were incorporated, but no other designations were ever applied.
Redesignated aircraft

Remarks:

The Il-4 was deployed as a bomber, torpedo-bomber, glider tug, transport, and reconnaissance aircraft. It was the first Russian bomber to bomb Berlin, on 8 August 1941. Also it was extensively used as a torpedo bomber by the Soviet fleets in the Baltic, Black Sea and Northern fleets.
The DB-3f was also operated by Finland, which captured or bought this and other bombers from captured German stocks, and used them in the Continuation War of 1943-1945

Strengths:

Weaknesses:

 

Got any comments?
Do you want to discuss this with someone else?
Post a message at the World War 2 Warbirds messageboard!!

 

© by Frans Bonné, 2000
Last revision: 12/11/00