Fiat 4700
| Industry | Aerospace |
|---|---|
| Founder | Fiat |
| Products | Turbo-generators, aircraft engines |
| Parent | Fiat |
The Fiat 4700 was an Italian turbo-generator created by Fiat Aviazione under a contract from the Italian Defence Ministry, designed to supply power for the experimental Fiat 7002 helicopter featuring tip jet propulsion.[1]
Design and development
The Fiat 4700 was engineered specifically to deliver power for cold-jet tip propulsion in helicopters.[1] It consisted of a turbo-driven air compressor powered by a primary turbojet engine derived from the Fiat 4002.[1] The compressor unit operated independently from the main engine mechanically.[1] To minimize the length of compressed-air piping leading to the rotor, the engine was installed in a vertical orientation.[1] This powerplant was utilized in the Fiat 7002 helicopter, which had its maiden flight on 26 January 1961, providing propulsion to the cold tip-jets on its two-blade rotor system.[2]