Undertaking
Patent
1977-03-28
1978-09-26
Pinkham, Richard C.
Undertaking
A63H 2704
Patent
active
041164326
ABSTRACT:
A stablized gasoline powered model airplane and pylon assembly has a thin vertically extending pylon of substantially uniform cross-section, a base for supporting the pylon vertically without circumferential lateral interference, a gasoline powered model airplane mounted for powered flight around the pylon by a small ring freely mounted on the pylon and a restraint line extending between the model airplane and the ring. A circular element of resilient plastic is secured near the upper end of the pylon for engaging the ring on the restraining wire to limit vertical travel, and oscillation of the model during flight. The model airplane is constrained to take-off, circle about the pylon, climb to the height of the pylon, and, following engagement with the flexible damping and stop element, to continue circular flight about the upper end of the pylon until fuel is exhausted and then to glide to a landing.
REFERENCES:
patent: 1189647 (1916-07-01), Anderson, Jr.
patent: 1331418 (1920-02-01), Craig
patent: 1925427 (1933-09-01), Wurtzer
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patent: 2580405 (1952-01-01), Byers
patent: 2649263 (1953-08-01), Bayuk
patent: 2672338 (1954-03-01), Freedman
patent: 2947108 (1960-08-01), Dodd, Jr. et al.
patent: 3596399 (1971-08-01), Barbee
American Modeler, Jan. 1958, p. 6, Three-line Bridle Anchor and Tether Cord.
Kramer Arnold W.
Pinkham Richard C.
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