Piper Cub Airframe Drawings/Plans ????

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flywheel1935

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Just a thought, but are Piper Cub Airframe Drawings/Plans available from any source, I mean to 'original' J3 ,L4 spec etc, so one could build an airframe
then build up an aircraft with off the shelf parts from Univair/Wag Aero/ Spruce, Just putting it out there.
 

BJC

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You might need to revert to the original in a few areas.


BJC
 

TFF

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A friend has a copy of Piper drawings. Wag is much easier to read as the factory are copy of copy of copy of blue print.
 

plncraze

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Didn't Piper just buy a Super Cub and copy when Stuart Millar wanted start production? My point is they didn't go by their old prints either. Wag Aero would be a better bet since they have been de-bugged from over 30 years of sales.
 

flywheel1935

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Thanks for the feedback, its early days for my next project, after the LMA is finished, I'm leaning towards the Wag Aero plans, but maybe with a Rotax ???
I'll run it past my LAA, (your EAA), but it's an interesting exercise. The alternate is a UK sourced Resto project.
 

BJC

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I wasn’t suggesting a purchase, just a reference for installing a Rotax in a Cub clone.


BJC
 

Chilton

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The reason for lack of Rotax fitted cubs may be that it vibrates at the natural frequency of the airframe, I once flew a PA 15 with a Rotax 912, and the aircraft buzzed to the engine firing frequency, apparently the fuselage rapidly cracked at many of the welded joints, not sure if the J3 would be the same but it may discourage the idea.
 
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flywheel1935

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Nov 1, 2018
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Location
Downham Market, Norfolk, UK.
The reason for lack of Rotax fitted cubs may be that it vibrates at the natural frequency of the airframe, I once flew a PA 15 with a Rotax 912, and the aircraft buzzed to the engine firing frequency, apparently the fuselage rapidly cracked at many of the welded joints, not sure if the J3 would be the same but it may discourage the idea.
point noted, thanks,
and on another thought, who actually owns the "Cub" Trademark/IPR , there are so many companies building them all calling the Cubs
 
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