MacDonald, Alexander Forsyth, 1897-1965 · Port Credit, Ont. : Aviation Service Corporation · leaf 45
djusted to match the hori-zon bar by means of a knob at the bottom of the case. Limitations of the Gyro Horizon. The gyro requires3 inches of mercury vacuum to operate, and 5 minutesto get up to operational speed. The gyro horizon permits dives or climbs up to 70degrees and banks up to 90 degrees… … F<g. }9. Pioneer Batik and Turn Indicator. The BANK AND TURN INDICATOR combines twoinstruments in one. The needle shows the rate at whichthe plane turns or rotates about its normal (or z) axis.The ball indicates the lateral level of the wings and, ina turn, the correct amount of bank for the…
Airplanes
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