Specifications – Bristol Blenheim (Mk IV)

Crew: 3

Length: 42 ft 7 in (12.98 m)
Wingspan: 56 ft 4 in (17.17 m)
Height: 9 ft 10 in (3.0 m)
Wing area: 469 ft² (43.6 m²)
Empty weight: 9,790 lb (4,450 kg)
Loaded weight: 14,400 lb (6,545 kg)

Powerplant:
2 × Bristol Mercury XV radial engine
920 hp (690 kW) each
Propellers: Three-bladed Hamilton Standard propeller

Performance:

Maximum speed: 266 mph (231 kn, 428 km/h at 11,800 ft (3,597 m))
Cruise speed: 198 mph (172.25 kn, 319 km/h)
Range: 1,460 mi (1,270 nmi, 2,351 km)
Service ceiling: 27,260 ft (8,310 m)
Rate of climb: 1,500 ft/min (7.6 m/s)
Wing loading: 30.7 lb/ft² (150 kg/m²)
Power/mass: 0.13 hp/lb (.21 kW/kg)

Armament:
1 × .303 in (7.7 mm) Browning machine gun in port wing
1 or 2 × .303 in (7.7 mm) Browning guns in rear-firing under-nose blister
Nash & Thomson FN.54 turret
2 × .303 in (7.7 mm) Browning guns in dorsal turret
1200 lb (540 kg) 4 × 250 lb (113 kg) bombs
or 2 × 500 lb (227 kg) bombs internally
and 8× 40 lb (18 kg) bombs externally

Bristol Blenheim MkI

Bristol Blenheim MkI

Image courtesy Wings Palette