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/ Arado Ar 77
Arado Ar 77
The Arado Ar 77 was a German twin engine monoplane, designed as an advanced training aircraft from 1934.
The Ar 77 had a thick cantilevered wooden wing, which was skinned with plywood on the under surfaces and covered with fabric on the upper surfaces.
The fuselage was built up from welded steel tubing covered with fabric.
The tail surfaces were built up from steel tubing and were also fabric covered, not following Arado’s trademark layout of a fin and rudder forward of the tail plane.
Instead the tailplane was high-mounted on the fin and supported by steel tube ‘N’ struts.
Elevators and rudder were covered with fabric, aerodynamically balanced in the Ar 77A and without aerodynamic balance horns in the Ar 77B.
The fixed tailwheel undercarriage consisted of cantilevered oleo pneumatic main leg struts fitted with brakes and a tail wheel under the rear fuselage.
12.6 m (41 ft 4 in)
19.2 m (63 ft 0 in)
3.25 m (10 ft 8 in)
50.5 m2 (544 sq ft)
1,930 kg (4,255 lb)
Max take-off weight
2,940 kg (6,482 lb)
Fuel 340 l (74.79 imp gal) + oil 25 l (5.50 imp gal)
2 × Argus As 10C, 8-cylinder inverted V air cooled,
176.5 kW (236.7 hp) each
2-bladed wooden propeller, 2.3 m (7 ft 7 in) diameter
240 km/h (150 mph, 130 kn) at sea level
200 km/h (120 mph, 110 kn)
84 km/h (52 mph, 45 kn)
720 km (450 mi, 390 nmi)
3 hours 36 minutes
5,000 m (16,000 ft) on 2 engines
1,800 m (5,906 ft) on one engine
Rate of climb
4.76 m/s (937 ft/min)
Time to altitude
1,000 m (3,281 ft) in 3 minutes 30 seconds
57.2 kg/m2 (11.7 lb/sq ft)
0.166 PS/kg (0.122 kW/kg; 0.074 hp/lb)
59 l/km (25 US gal/mi; 21 imp gal/mi).
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