Saunders-Roe SR.45 Princess

johnbr · Jul 19, 2020

johnbr · Jul 19, 2020

johnbr · Jul 19, 2020

johnbr · Jul 19, 2020

johnbr · Jul 19, 2020

johnbr · Jul 19, 2020

johnbr · Jul 19, 2020

General characteristics

Crew: 2 pilots, 2 flight engineers, radio operator and navigator
Capacity: 105 passengers in tourist and first class cabins / 137,000 lb (62,142.2 kg) disposable load
Length: 148 ft (45 m)
Wingspan: 219 ft 6 in (66.90 m) with wingtip floats retracted. 209 ft 6 in (63.86 m) floats extended.
Height: 55 ft 9 in (16.99 m)
Wing area: 5,019 sq ft (466.3 m2)
Airfoil: "Saro-modified Goldstein section" to "modified N.A.C.A. 4415 Series" at tip[27]
Empty weight: 190,000 lb (86,183 kg)
Gross weight: 330,000 lb (149,685 kg)
Max takeoff weight: 345,025 lb (156,501 kg)
Fuel capacity: 14,000 imp gal (63,645.3 l; 16,813.3 US gal) in four integral inner wing tanks.
Powerplant: 4 × Bristol Coupled-Proteus 610 [a] turboprop, 5,000 hp (3,700 kW) each + 1,660 lbf (7.38 kN) residual thrust at 10,000 rpm at sea level[28]Saunders-Roe Princess - Wikipedia
[*]Powerplant: 2 × Bristol Proteus 620 Turboprop engines, 2,500 hp (1,900 kW) each + 820 lbf (3.65 kN) residual thrust at 10,000 rpm
[*]Propellers: 4-bladed de Havilland constant speed, quick-feathering Duralumin propellers.[30], 16 ft 6 in (5.03 m) diameter

Performance

Maximum speed: 380 mph (610 km/h, 330 kn) at 37,000 ft (11,000 m)

Cruise speed: 360 mph (580 km/h, 310 kn) at 32,500 ft (9,900 m)

Stall speed: 113 mph (181 km/h, 98 kn) flaps and floats down

Range: 5,720 mi (9,210 km, 4,970 nmi)

Endurance: 15 hours

Service ceiling: 39,000 ft (12,000 m) absolute

Rate of climb: 1,900 ft/min (9.7 m/s) at 184 mph (296 km/h; 160 kn) at sea level

The Princess was to have accommodations for both Tourist and First Class.