| Manufacturer |
Blackburn Aircraft |
Grumman |
| Description |
The Blackburn B-20 was an experimental aircraft, first flying in 1940, that attempted to drastically increase the performance of flying boat designs. |
The Grumman Gulfstream I (company designation G-159) is a twin-turboprop business aircraft. |
| First Flight |
1940-03-26 |
1958-08-14 |
| Production End |
|
1969-01-01 |
| Designer |
John Douglas Rennie |
Grumman |
| Type |
Prototype flying boat |
Business aircraft |
| Length (m) |
21.0312 |
19.2024 |
| Height (m) |
7.62 |
6.7056 |
| Cockpit Crew |
6 |
2 |
| Max Seating |
|
24 |
| Max Speed (km/h) |
492.4593 |
|
| Cruise Speed (km/h) |
|
560.0517 |
| Max Ceiling (m) |
|
10241.28 |
| Rate of Climb (m/s) |
|
9.652 |
| Armament |
provision for two turrets and other defensive positions; bomb-cells in centre section |
|
| Capacity Description |
|
10–24 passengers / 4270 lb maximum payload |
| National Origin |
United Kingdom |
United States of America |
| Number Built |
1 |
200 |
| Powerplant Description |
2 × Rolls-Royce Vulture X-24 liquid-cooled piston engines, 1283 kW (1720 hp) each |
2 × Rolls-Royce Dart Mk.529 or Mk.529-8E turboprop, 1633 kW (2190 hp) each |
| Primary Users |
Royal Air Force |
|
| Wikipedia Article (URL) |
en.wikipedia.org/wiki/Blackburn_B-20 |
en.wikipedia.org/wiki/Grumman_Gulfstream_I |
| Flat Wing Span (m) |
24.9936 |
23.7744 |
| Flat Wing Area (m²) |
99.0346 |
56.6987 |
| Flat Wing Aspect Ratio |
|
10 |
| Aircraft Engine |
Rolls-Royce Vulture |
|
| Number of Engines |
2 |
2 |