Specifications (Wyvern S Mk 4)
Data from Westland Aircraft since 1915
General characteristics
- Crew: 1 (2 in T Mk.3)
- Length: 42 ft 3 in (12.88 m)
- Wingspan: 44 ft 0 in (13.41 m) (folded 20 ft (6 m)
- Height: 15 ft 9 in (4.80 m) (folded 20 ft (6 m)
- Wing area: 355 sq ft (33.0 m2)
- Empty weight: 15,600 lb (7,076 kg)
- Gross weight: 21,200 lb (9,616 kg)
- Max takeoff weight: 24,550 lb (11,136 kg)
- Powerplant: 1 × Rolls-Royce Eagle 22 H-24 liquid-cooled sleeve-valve piston engine, 2,690 hp (2,010 kW) (TF Mk.1)
- Powerplant: 1 × Rolls-Royce Clyde axial LP, centrifugal HP, 2-spool turboprop, 4,000 hp (3,000 kW) +1,550 lbf (6.895 kN) residual thrust (TF Mk.2)
- Powerplant: 1 × Armstrong Siddeley A.S.P.3 Python reverse flow axial compressor turboprop engine, 3,560 hp (2,650 kW) +1,100 lbf (4.893 kN) residual thrust (T Mk.3, S. Mk.4)
- Propellers: 8-bladed ROTOL Airscrews contra-rotating, 13 ft (4.0 m) diameter
Performance
- Maximum speed: 383 mph (616 km/h; 333 kn) at sea level, 380 mph (612 km/h) at 10,000 ft (3,048 m)
- Range: 910 mi (791 nmi; 1,465 km)
- Service ceiling: 28,000 ft (8,534 m)
- Rate of climb: 2,350 ft/min (11.9 m/s)
- Wing loading: 60 lb/sq ft (290 kg/m²)
- Power/mass: 0.145 hp/lb
Armament
- Guns: 4 x 20 mm (0.787 in) British Hispano Mk.V cannon, 2 in each wing
- Rockets: 16 x RP-3 underwing rockets
- Missiles: one Mk.15 or Mk.17 torpedo
- Bombs: Up to 3,000 lb (1,361 kg) of bombs orsea mine
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