EKW, Eidgenösschische Konstruktionswerkstätten / K+W Häfeli DH-3 (M III)

Reconnaissance / Trainer Biplane

EKW / K+W Häfeli DH-3, Swiss Air Force / Schweizer Luftwaffe, Replica © Karsten Palt
Photo ©: Karsten Palt
The EKW / K+W Häfeli DH-3 is a single engine two seat reconnaissance and trainer biplane aircraft produced by the Swiss manufacturer Eidgenössische Konstruktionswerkstätten.
The DH-3 is a development of the unsuccessful Häfeli DH-2. The DH-3 was in operation with the Swiss Air Force only.
Crew2
Propulsion1 Piston Engine
Engine ModelArgus As II
Engine Power88 kW118 hp
Speed250 km/h135 kts
  155 mph
Service Ceiling4.000 m13.123 ft
Rate of climb132 m/min433 ft/min
Range400 km216 NM
249 mi.
Empty Weight665 kg1.466 lbs
max. Takeoff Weight1.040 kg2.293 lbs
Wing Span12,00 m39 ft 4 in
Wing Area38,0 m²409 ft²
Length8,05 m26 ft 5 in
Height3,10 m10 ft 2 in
First Flight1917
Production Statusout of production
Production Range1917-1925
Total Production110
Developed fromEKW/K+W Häfeli DH-2
Data for (Version)EKW DH-3
VariantsDH-3 (M III), DH-3a (M IIIa), DH-3b (M IIIb)