The Nord 3400 Norbarbe was a French two-seat observation and casualty-evacuation aircraft built by Nord Aviation for the French Army Light Aviation.
The Nord 3400 was designed to meet a French Army requirement for a two-seat observation aircraft, with a secondary casualty-evacuation role. The 3400 was a braced high-wing monoplane with a fixed tailwheel landing gear and an enclosed cabin with tandem seating for a pilot and observer. The prototype F-MBTD first flew on 20 January 1958, powered by a 179 kW (240 hp) Potez 4D-30 engine. A second prototype with an increased span and wing area followed, being powered by a 194 kW (260 hp) Potez 4D-34 engine. A production batch of 150 was ordered by the French Army in the same configuration as the second prototype.
The wings may be folded for storage.
The first Nord 340 was accepted by the ALAT on 9 July 1959 and the 150th and last was delivered in March 1961.
Nord 3400-01
First prototype F-MBTD
Engine: 179 kW (240 hp) Potez 4D-30
Wing span: 12.7 m (42 ft)
Wing area: 19.5 sq.m (210 sq ft)
Second prototype
Engine: 194 kW (260 hp) Potez 4D-34
Nord 3400
Powerplant: 1 × Potez 4D-30, 180 kW (240 hp)
Propeller: 2-bladed Ratier Type 24-56 adjustable-pitch
Propeller diameter: 2.25 m (7 ft 5 in) diameter adjustable-pitch propeller
Wingspan: 13.11 m (43 ft 0 in)
Wing area: 20.82 sq.m (224.1 sq ft)
Aspect ratio: 8.2
Airfoil: NACA 23015[4]
Length: 8.42 m (27 ft 7 in)
Height: 3.1 m (10 ft 2 in)
Empty weight: 920 kg (2,028 lb) equipped
Max take-off weight: 1,350 kg (2,976 lb)
Fuel capacity: 220 L (58.1 US gal; 48.4 imp gal) in two self-sealing rubber tanks (160 kg (353 lb))
Maximum speed: 235 km/h (146 mph, 127 kn)
Cruise speed: 200 km/h (120 mph, 110 kn)
Stall speed: 70 km/h (43 mph, 38 kn) <
Range: 1,000 km (620 mi, 540 nmi)
Rate of climb: 7 m/s (1,400 ft/min)
Wing loading: 65 kg/sq.m (13 lb/sq ft)
Power/mass: 0.192 kW/kg (0.117 hp/lb)
Take-off run: <100 m (328 ft)
Landing run: <100 m (328 ft)
Crew: 2
All Aero 