Helicopters1940s American experimental helicopter
Firestone XR-9
The Firestone XR-9, also known by the company designation Model 45, is a 1940s American experimental helicopter built by the Firestone Aircraft Company for the United States Army Air Forces. Only two (the military XR-9B and one civil example) were built.
Summary from Wikipedia, photo via Wikimedia Commons, licensed under CC BY-SA.
- Manufacturer
- Firestone Tire and Rubber Company
- Category
- Helicopters
- First flight
- 1946-03-01
Specifications
- Cruise speed
- 70 kt
- Max speed
- 87 kt
- Service ceiling
- 10,000 ft
- Rate of climb
- 1,000 ft/min
- Max takeoff weight
- 1,750 lb
- Fuel capacity
- 25 US gal
- Powerplant
- Lycoming O-290-7
- Engines
- 1
- Seats
- 1
- Length
- 27.6 ft
- Wingspan
- 28 ft
- Height
- 8.5 ft
- Number built
- 2
Specifications are approximate and may vary by variant. Compiled from Wikipedia (CC BY-SA).
Reference and training only. Specifications vary by variant — consult the manufacturer and the official documents.