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Prop diameter

by William Holloway in General Tech Discussion 7 years ago

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Re: Prop diameter

by Genival Pacheco » 6 years ago

Genival Pacheco

4 87 135

Roger,

You wrote:
2 vs 3 blade didn't make any difference flying, but the static rpm on the ground during setup was quite different. The 2 blades have a wider more pronounced frequency through the aircraft hull where the 3 blade had a narrower frequency and felt smoother. Props I tested were 64" to 70" 2 and 3 blade.

As I understand regarding performance either one of the PROPELLERS is fine.
What is not clear to me is regarding the gear box and plane structure.
because of the vibration as you mentioned it seems that the 3 blade is better.

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Re: Prop diameter

by Test User » 6 years ago

Test User

0 4 36

Make sure you measure the moment of inertia on the propeller.

It must not exceed 6000 cm2

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Re: Prop diameter

by Rob Seaton » 6 years ago

Rob Seaton

3 1.32k 240

A lot of hijacking on this post! Please stick to helping answer the guys question.
If you have your own question start your own post.

Thank you said by: RotaxOwner Admin

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Re: Prop diameter

by RotaxOwner Admin » 6 years ago

RotaxOwner Admin

59 1.58k 14k

[forum moderator] Splitting off some of these side topics into their own threads...

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