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How to determine correct tire diameter ? Tiger Moth . Not a math major

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How to determine correct tire diameter ? Tiger Moth . Not a math major

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Old 01-14-2019, 01:46 PM
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TampaRC
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Default How to determine correct tire diameter ? Tiger Moth . Not a math major

I have a Tiger Moth with a 55.5" wing. The actual TM has a 29' 4" wingspan. I can't find the tire diameter of the full scale, and even if I did, I don't know how to reduce the scale.

Can anyone help?
Old 01-14-2019, 02:44 PM
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chris923
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It's 1/6.34 scale. Or 1/6 is close enough.

Last edited by chris923; 01-14-2019 at 02:47 PM.
Old 01-18-2019, 04:23 AM
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Originally Posted by TampaRC
I have a Tiger Moth with a 55.5" wing. The actual TM has a 29' 4" wingspan. I can't find the tire diameter of the full scale, and even if I did, I don't know how to reduce the scale.

Can anyone help?
Convert the full size to inches. 29 x 12 = 348 + 4 = 352 inches.
Divide that by the model size to get scale. 352 / 55.5 = 6.34 or 1/6 (One sixth) scale.

Assuming the real one uses a wheel/tire in the 18 inch diameter range, your scale size would be 18 / 6.23 = 2.9 inches.
Unless you're going for exact scale, for a wheel I'd use the "looks about right" method. I'd go with something between 3 and 3.5 inches. Depending on your field, even 4 inches could work. It's a toss up between what looks right and what works on your field. Smaller wheel on pavement and larger on grass.
Old 01-18-2019, 05:34 PM
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speedracerntrixie
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Kavan wheel, available from Sig.



CB associates wheel, rights owed by Meccoa.
You can get a feel for the size by looking at a few pictures of the full scale airplane. I am also a fan of " if it looks right it is right". To that effect here are a few samples from, Kavan and CB associates that may look the part.

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