Registers – Calculators – Tabular
Patent
1976-01-22
1977-03-15
Weldon, Ulysses
Registers
Calculators
Tabular
235 78N, 235 61NV, G06C 300
Patent
active
040119874
ABSTRACT:
An aircraft descent calculator including a central member defining an outer annular dial face about the periphery thereof; an intermediate member defining an intermediate annular dial face about the periphery thereof rotatably mounted on the central member so that the intermediate dial face lies adjacent the inside of said outer dial face; and an inner member defining an inner annular dial face about the periphery thereof rotatably mounted on the intermediate member in juxtaposition with said intermediate dial face where each of the dial faces divided into equal angular spaces, where the intermediate dial face has aircraft altitude indicia recorded thereon increasing in prescribed altitude increments in a first direction around the intermediate dial face and where both the inner and outer dial faces have aircraft DME distance recorded thereon increasing in prescribed distance increments in opposite directions around the dial faces so that said dial faces can be manipulated to determine positions on a prescribed aircraft descent profile.
REFERENCES:
patent: 3255961 (1966-06-01), Cumberpatch
patent: 3279695 (1966-10-01), Krause
patent: 3609299 (1971-09-01), Wright
patent: 3693873 (1972-09-01), Otte
patent: 3825180 (1974-07-01), Gallagher
patent: 3929279 (1975-12-01), Dibley
Powell B. J.
Weldon Ulysses
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