TBF-1 Avenger Torpedo Bomber Cruising Calculator Mark 1-A, Ser # 4669-43 Smiths The left knob adjusts the

The left knob adjusts the indicated airspeed which is displayed in the left window

370-page reference book is very comprehensive and covers nearly 350 aircraft from around the world

giving it quite a heft

which was controlled on the Bleed Air panel just above the panel that contained this indicator

he must initiate a missed approach procedure

TBF-1 Avenger Torpedo Bomber Cruising Calculator Mark 1-A, Ser # 4669-43 Smiths The left knob adjusts theThis is an authentic original WWII era Cruising Computer Mark 1 A designed specifically for the US Navy's Grumman Torpedo Bomber TBF 1. The purpose of the calculator was to determine the range, in nautical miles, of the aircraft under various conditions of aircraft weight, head tail winds, fuel quantity on board, true air speed, altitude, and throttle and supercharger blower settings. The calculator is essentially a custom 3 panel slide rule