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Post  franckh Mon Jan 02, 2023 11:11 am

I found in France a cox PT19 but with Reverse propeller and start spring reverse also, I don't see that on your picture, model have a mouled pilot in fuselage should be last product
PT19 reverse propeller Img_2015
thank for your forum
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Post  GallopingGhostler Mon Jan 02, 2023 11:56 am

Welcome to the forum, @franckh. Perhaps someone changed the starter spring and propeller to take advantage of engine torque to keep the control lines taut whilst flying?
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Post  Kim Mon Jan 02, 2023 3:42 pm

I believe that my original PT-19QZ came equipped with a reverse-pitch 6-3 propeller, to help "torque" the trainer toward the outside of the circle.

This was an early version with integral tank, basically a "Babe Bee", modified without Sub-Piston Induction to accept its muffler.
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Post  roddie Mon Jan 02, 2023 4:37 pm

The Cox black 2-blade 6" dia. X 2" pitch L/H propeller (Cox#864) was the replacement prop for my later-model (1987) Cox PT19. Note also on my model's replacement parts list below; the L/H snap-starter kit #334. You can be fairly sure that you have the correct parts there.

PT19 reverse propeller Pt19-110
PT19 reverse propeller 6_x_2_10

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