Flight Instrument

Object


2025.1.5
Navigational Computers

Various plastic and metal devices used to manually compute takeoff distance, air speed , bearing, fuel consumption, direction, time, distance, fuel consumption, altitude, as well as slide use and conversions from imperial to metric.etc. Although they were called computers, they are actually computing devices rather than computers in the modern sense of the word. Air navigation computers form an important sub-class of slide rules.

Bob Cousins was born in Vancouver, BC. At a young age he joined the Canadian Army which brought him to Edmonton, AB where he met his true love, Edie. Together they moved to Whitehorse, YT in 1954 to raise their family. His legacy to the Yukon is the design and building of Cousins Airstrip in 1964, used by many as a flight training field today.;Denalt Performance Computer is used to find the Expected Rate of Climb.;MARK VIII-C Computer, produced by Pan American Navigation Service and Weems System of Navigation, was used to calculate altitude and air speed.;Jeppesen CR-1 Computer was used for computations involving time, air speed, distance, fuel consumption, altitude, as well as slide use and conversions from imperial to metric.;Jeppesen Slide Graphic Computer Model CSG can be used for four different types of calculations:
*As a normal slide rule, for example for speed/time/distance calculations.
*Using in-built tables, for example temperature conversion.
*Using special scales, for example altitude temperature correction.
*Wind triangle calculations, for example heading and drift.