Building the RCM CAP 21 - RCCanada - Canada Radio Controlled Hobby Forum
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Old 10-08-2019, 10:49 PM   #1
Robert J
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Building the RCM CAP 21

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As the building season has started I decided to build the .40 4 stroke size CAP 21 that was published in the Nov 1985 RCM mag. The plan does not show any right thrust for the engine install. Seems to me there should be a deg or two. Has anyone had any experience & if so could you please let me know what you think? BTW it will be getting a Saito .56 not a .40.

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Old 10-09-2019, 09:56 AM   #2
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Re: Building the RCM CAP 21

IMHO, the 4 stroke will be turning a larger prop, likely with more pitch. I'd put some right thrust in.
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Old 01-28-2020, 02:16 PM   #3
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Re: Building the RCM CAP 21

i know this is an older thread, but how is the Cap 21 build going? I built the Great Planes Cap 21 60 size (72 inch wing). its almost complete. there is 0 degree for engine thrust.
once she flies I will determine if any is needed from there. Different kit that yours though.
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