TBF-1 Avenger Torpedo Bomber Cruising Calculator Mark 1-A, Ser # 0300-43 P5M Marlin In between when the landing

In between when the landing gear is unlocked

just try to hear that over the cacophony of multiple radial engines

model 8DJ28AAN

in its original carrying case

This altimeter is similar in appearance to that shown in the F4U Corsair Flight Manual dated 1944

TBF-1 Avenger Torpedo Bomber Cruising Calculator Mark 1-A, Ser # 0300-43 P5M Marlin In between when the landingThis 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