Saunders-Roe SR.177 - Specifications (SR.177 Estimated)

Specifications (SR.177 Estimated)

Data from

General characteristics

• Wingspan: 30 ft 3.25 in (9.2266 m) with missiles, 27.12 ft (8.266 m) without missiles
• Height: 14 ft 3.5 in (4.356 m)
• Wing area: 327 sq ft (30.4 m2)
• Empty weight: 14,533 lb (6,592 kg)
• Gross weight: 25,786 lb (11,696 kg) (normal warning)
• Max takeoff weight: 28,174 lb (12,780 kg) (extended warning)
• Powerplant: 1 × de Havilland PS.50 Gyron Junior turbojet with afterburner, 14,000 lbf (62 kN) thrust
• Powerplant: 1 × de Havilland Spectre 5A liquid-fuelled rocket engine, 10,000 lbf (44 kN) thrust

Performance

• Maximum speed: Mach 2.35
• Service ceiling: 67,000 ft (20,422 m)
• Rate of climb: 60,000 ft/min (300 m/s)
• Time to altitude:
  
  • brake release to 20,000 ft (6,096 m) - 1 min 27 sec
  • brake release to 40,000 ft (12,192 m) - 2 min 3 sec
  • brake release to 60,000 ft (18,288 m) - 3 min 6 sec
  • brake release to 70,000 ft (21,336 m) - 3 min 51 sec
    
• Level acceleration at 80,000 ft (24,384 m) from top of climb at Mach 1.4 to Mach 2 - 1 min 6 sec
• Radius of turn (at Mach 1·6 at 60,000 ft (18,288 m)) - 24,000 ft (7,315 m)
• Rocket full power endurance - 7 minutes

Armament

• Hardpoints: 2 with a capacity of 1,000 lb (454 m),
• Missiles:
  
  • Initially 2 x de Havilland Firestreak air-to-air missiles
  • Later 2 x Hawker Siddeley Red Top (Firestreak Mark 4)

Avionics
AI-23 airborne interception radar