Airco DH.4

The DH.4 was designed by Geoffrey de Havilland as a light two-seat combat aircraft, intended to perform both aerial reconnaissance and day bomber missions.

Variants

UK variants

DH.4

Two-seat day bomber biplane.

DH.4A

Transport version, Built in the United Kingdom, Two passengers in glazed cabin behind pilot.

DH.4R

Single seat racer – 450 hp (340 kW) Napier Lion engine.

Soviet Variants

Copy of DH.4 manufactured by Polikarpov in the former Dux Factory in the 1920s

Soviet D.H.4s were powered by FIAT A.12, Siddley Puma and German Daimler engines.

United States Variants

DH-4

Two-seat day bomber biplane, built in the United States.

DH-4B

Rebuilt version of Liberty powered DH-4 for U.S. Air Service.

Pilot’s cockpit relocated to behind fuel tank, adjacent to observer’s cockpit.

DH-4B-1

Increased fuel capacity (110 US gal (420 l; 92 imp gal)).

DH-4B-2

Trainer version.

DH-4B-3

Fitted with 135 US gal (510 l; 112 imp gal) fuel tank

DH-4BG

Fitted with smokescreen generators

DH-4BK

Night flying version

DH-4BM

Single seat version for communications

DH-4BM-1

Dual control version of BM

DH-4BM-2

Dual control version of BM

DH-4-BP

Experimental Photo Reconnaissance version

DH-4-BP-1

BP converted for survey work

DH-4BS

Testbed for Supercharged Liberty

DH-4BT

Dual control trainer

DH-4BW

Testbed for Wright H engine

DH-4C

300 hp (220 kW) Packard engine

DH-4M

Rebuilt version of DH-4 with steel tube fuselage.

DH-4Amb

Ambulance.

DH-4M-1

Post-war version by Boeing (Model 16) with new fuselage, designated O2B-1 by Navy

DH-4M-1T

Dual control trainer conversion of DH-4M

DH-4M-1K

Target tug conversion

O2B-2

Cross-country and night flying conversion for Navy

DH-4M-2

Post-war version by Atlantic

L.W.F. J-2

Twin-engine long range development of DH-4 (also known as Twin DH), powered by two 200 hp (150 kW) Hall-Scott-Liberty 6 engines and with wingspan of 52 ft 6 in (16.00 m).

XCO-7

(Boeing Model 42)

Two-seat observation version with Boeing designed wings, enlarged tailplane and divided landing gear.

XCO-8

Was a designation of one Atlantic DH.4M-2 fitted with Loening COA-1 wings and powered by a Liberty 12A engine.

Specifications

(Eagle VIII engine)

Crew

Two

Length

30 ft 8 in (9.35 m)

Wingspan

43 ft 4 in (13.21 m)

Height

11 ft 0 in (3.35 m)

Wing area

434 sq ft (40.3 m2)

Empty weight

2,387 lb (1,083 kg)

Gross weight

3,472 lb (1,575 kg)

Powerplant

1 × Rolls-Royce Eagle VIII water-cooled V12 engine, 375 hp (280 kW)

Performance

Maximum speed

143 mph (230 km/h, 124 kn) at sea level

Endurance

3 hr 45 min

Service ceiling

22,000 ft (6,700 m)

Time to altitude

9 min to 10,000 ft (3,000 m)

Armament

Guns

Forward-firing .303 in (7.7 mm) Vickers machine gun

&

Lewis gun on Scarff ring at rear

Bombs

460 lb (210 kg) of bombs.

 

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