Overview
The Airco DH.2 (Dayton-Hawker) was a British single‑seat, tractor‑propeller biplane fighter aircraft built by the Aircraft Manufacturing Company (Airco) during the First World War. It entered service in early 1916 and was the first successful British fighter to counter the German Fokker E.I and E.II monoplane fighters.
Design and Development
- Designer: Geoffrey de Havilland, chief designer at Airco.
- Airframe: Conventional two‑bay biplane with staggered wings of unequal span; the lower wing was slightly smaller. The fuselage was a wooden box‑type structure covered in fabric.
- Powerplant: Initially fitted with a 100 hp (75 kW) Gnome Monosoupape rotary engine; later production aircraft employed the more powerful 110 hp (82 kW) Le Rhône 9J.
- Armament: A single .303 in (7.7 mm) Vickers machine gun mounted on the left side of the fuselage, synchronized to fire through the propeller arc using a mechanical interrupter gear.
- Features: The tractor configuration (engine and propeller at the front) distinguished it from earlier pusher‑type British fighters such as the Airco DH.1. The DH.2’s relatively lightweight construction gave it a good rate of climb, which was crucial for engaging the faster German monoplane fighters of the period.
Operational History
- Introduction to Service: The DH.2 entered front‑line service with the Royal Flying Corps (RFC) in March 1916. The first squadron equipped was No. 24 Squadron RFC.
- Combat Role: Primarily used for air‑to‑air combat and patrol duties over the Western Front. Its ability to climb rapidly allowed pilots to gain altitude advantage against the low‑flying German Fokker Eindekker.
- Notable Engagements: The DH.2 contributed to the end of “Fokker Scourge” in mid‑1916. Notable pilots who scored victories in the type include Albert Ball and Lanoe Hawker.
- Service Duration: It remained in front‑line use until early 1917, when newer fighters such as the Airco DH.5, the Sopwith Pup, and the SE5a superseded it. Some DH.2s continued in training and Home Defence roles until the war’s end.
Production
- Manufacturer: Aircraft Manufacturing Company (Airco), based in Hendon, London.
- Numbers Built: Approximately 453 airframes were produced between 1915 and 1917.
Specifications (Typical DH.2, 1916)
| Parameter | Value |
|---|---|
| Crew | 1 (pilot) |
| Length | 21 ft 2 in (6.45 m) |
| Wingspan | 27 ft 0 in (8.23 m) |
| Height | 9 ft 6 in (2.90 m) |
| Wing area | 194 ft² (18.0 m²) |
| Empty weight | 820 lb (372 kg) |
| Gross weight | 1,200 lb (544 kg) |
| Powerplant | 1 × Gnome Monosoupape rotary engine, 100 hp (75 kW) |
| Maximum speed | 93 mph (150 km/h) at sea level |
| Climb rate | 1,100 ft (335 m) in 2 min 30 s |
| Service ceiling | 15,000 ft (4,570 m) |
| Armament | 1 × .303 in (7.7 mm) Vickers machine gun |
Legacy
The DH.2 demonstrated the effectiveness of a tractor‑propeller layout for single‑seat fighters, influencing subsequent British designs. Its success helped restore Allied air superiority in 1916 and paved the way for more advanced rotary‑engine fighters later in the war.
