Aeronautics and astronautics – Aircraft propulsion and steering on land or water
Patent
1996-08-01
1999-02-09
Barefoot, Galen L.
Aeronautics and astronautics
Aircraft propulsion and steering on land or water
244100R, B64C 2526
Patent
active
058683526
ABSTRACT:
The present invention is provided to overcome the difficulties of a conventional tail wheel-type airplane such as the remarkably inferior straight ground-run properties during a take-off run (particularly, low-speed taxiing), and the extremely difficult control during the take-off run. A mechanism of the present invention is structured such that left and right coaxial gears and main wheel gears (or connection gears) are engaged together when not stepping on rudder pedals in take-off and landing run. Under this operation, since the above gears themselves are engaged together, left and right main wheels rotate synchronously through a co-axis, and as a result, an airframe makes a straight ground-run. When stepping on the rudder pedals in taxiing, the coaxial gears and main wheel gears (or connection gears) are disengaged from each other, the left and right main wheels then rotate independently, and as a result, the airframe easily taxis (i.e., a case of turning the airframe right or left). The present invention is also applied to a tail wheel-type radio control model airplane.
REFERENCES:
patent: 1524352 (1925-01-01), Gephart
patent: 1747344 (1930-02-01), Bell
patent: 1960762 (1934-05-01), Towle
patent: 1998677 (1935-04-01), Laddon et al.
patent: 2424523 (1947-07-01), Watter
patent: 2507440 (1950-05-01), Hanson
patent: 2516397 (1950-07-01), Kress et al.
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