Reduction Drive

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Peter Smedley
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Reduction Drive

Postby Peter Smedley » January 3rd, 2019, 6:38 am

Myself and a couple of other club mates have decided to build a DB Giant Mannock. We shall be using an Evolution 33gx with reduction drive.
Currently the idea is to go with a 1:1.8 reduction using a toothed belt.

What prop would be of use ? The full size used a 96” diameter prop. So just under 1/3 scale would be 30”. And what pitch might prove suitable? Many thanks...
Fly ‘til I die...

Cary Bailey
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Re: Reduction Drive

Postby Cary Bailey » January 4th, 2019, 8:04 am

Peter, potentially you could be looking at a 28x10 or 30x10 . However just a pointer I know there are guys in the Dawn Patrol that have Zenoah 38's fitted with a reduction drive that fly their 1/3 scale Sopwith Pup's and they fly well. As for me my 1/3 scale Fokker DVII I used to fly was fitted with a Zenoah 62, Torquemaster reduction drive swinging a 30x10 prop.
I thought I would just give you some parameters.
Cary

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Peter Smedley
Posts: 58
Joined: October 24th, 2017, 9:22 pm
Location: Deepest Cornwall
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Re: Reduction Drive

Postby Peter Smedley » January 4th, 2019, 5:02 pm

Thanks it’s something I can work on now...cheers
Fly ‘til I die...

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Peter Smedley
Posts: 58
Joined: October 24th, 2017, 9:22 pm
Location: Deepest Cornwall
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Re: Reduction Drive

Postby Peter Smedley » April 13th, 2019, 9:52 pm

Some update on the project

https://youtu.be/fHQojFjEMZ8
Fly ‘til I die...


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