Airplane pilot aid

Geometrical instruments – Miscellaneous – Light direction

Reexamination Certificate

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Details

C033S431000, C235S0610NV, C235S07800G

Reexamination Certificate

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11226146

ABSTRACT:
A pilot aid that includes a sheet material having indicia thereon indicative of a plurality of predetermined flying parameters including at least wind velocity and direction. A plurality of indicia wheels are each separately mounted from the sheet material and each are associated with a different flying parameter. A plurality of windows are disposed on the sheet material, each positioned to overly a corresponding indicia wheel and each for observing one of a plurality of predetermined characteristics that define the flying parameter.

REFERENCES:
patent: 2007986 (1935-07-01), Sprague
patent: 2485674 (1949-10-01), Suiter
patent: 2546836 (1951-03-01), Saloschin
patent: 3276682 (1966-10-01), Phelps
patent: 3721007 (1973-03-01), Banner
patent: 4152835 (1979-05-01), Powell
patent: 5553387 (1996-09-01), Newcomb
patent: 6167627 (2001-01-01), Wilder et al.
patent: 6950731 (2005-09-01), English

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