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OS 70 SZH question

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Old 04-10-2017, 06:34 PM
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Baxter,, is there a Prop Hub that will fit/and work on the OS 70 sz Heli engine ??

thank you !!

Jim
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Old 04-17-2017, 10:14 AM
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It uses a 5/16-24 thread for the prop nut. If you're asking about an airplane-type drive washer, then, no, there is no drive washer to fit.
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Old 04-17-2017, 05:10 PM
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"" It uses a 5/16-24 thread for the prop nut ""

got yeeaa

thank you !!

Jim
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