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Backpack helicopter From Wikipedia, the free encyclopedia
The Hoppi-Copter was a functional backpack helicopter developed by the American company Hoppi-Copters Inc. founded by Horace T. Pentecost in the 1940s.[1] The original Hoppi-Copter consisted of two contra-rotating rotors on a pole attached to a motorized backpack.[2] Although it was capable of flight, it was extremely hard to control.[3]
| Hoppi-Copter | |
|---|---|
| |
| Pentecost HX-1 Hoppi-Copter on display at Pima Air & Space Museum, in Arizona, U.S. | |
| Role | Backpack helicopter |
| National origin | United States |
| Manufacturer | Hoppi-Copters Inc. |
| First flight | c. 1940 |
Later prototypes of the Hoppi-Copter included versions with the pilot in a sitting position, and were in effect miniature one-man helicopters of a more conventional design, though retaining the contra-rotating rotors and thus obviating a tail rotor.[1][4] Despite interest from the British Ministry of Supply in the 102 and 104 models,[5] none were adopted commercially.[3]
Data from Jane's All the World's Aircraft 1948[4]
General characteristics
Performance
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