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Author Topic: speed calculator  (Read 448 times)

Offline Fred Cronenwett

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    • Lafayette Esquadrille
speed calculator
« on: November 13, 2019, 04:52:10 PM »
Model Speed Computer - Old School method. We were going thru some old contest equipment and found this speed calculator. If you know the equations we can now use our smart phones to calculate the speed in MPH. The Lafayette Esquadrille is based in St Louis and this speed calculator was made in St Charles which is 30 minutes west of St Louis. We now use a modern calculator to calculate the speed.
Fred Cronenwett
AMA CLSCALE7 - CL Scale
Model Aviation CL Scale columnist

Offline Fred Cronenwett

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Re: speed calculator
« Reply #1 on: November 13, 2019, 04:53:11 PM »
two more pictures
Fred Cronenwett
AMA CLSCALE7 - CL Scale
Model Aviation CL Scale columnist


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