You MUST be a MEMBER in Hip Pocket Aeronautics "Builders' Forum" to REGISTER for access to the Plan Gallery.
Forum Members can visit This Topic in the Forum to Register. Logging In to the Forum is required.
Home / Free Flight / Indoor/Outdoor PEANUT Scale / Poulin JP-30 (Revised - CG added) Top Plans  New Items (Last 10 days)  Search  

Registered users

Username:

Password:

Log me on automatically next visit?

Forgot password

 

Random Plan

The Weaver - Vintage 1/2A
The Weaver - Vintage 1/2A (whipandflick)
Racing, Mouse Racing, Speed
Comments: 0
Downloads: 144

 


Poulin JP-30 (Revised - CG added)
Poulin JP-30 (Revised - CG added)

            

Poulin JP-30 (Revised - CG added)
Description: Peanut -semi- Scale by Bill Warner
from American Aircraft Modeler, June 1971

12-20-15 Note from Firefly:

The Poullin JP 30 plan was published without a Center of Gravity location on the original plan. I built one anyway and added a substantial amount of lead to bring the CG to the, time honored, 30% of wing chord location. The glide, if you can call it that, was nearly straight down.

I removed the lead and test glided it, as built with no ballast. It flew fine. I checked the balance point and found it to be as shown on this (revised) drawing.

I hope more people will try this little model. I cannot claim to having trimmed it to match its contest winning flights, but I promise this thing will fly well with the CG as marked. I have no idea why.

John
Keywords: Poullin JP30, peanut, semi scale, Warner
Date: 12.20.2015 18:30
Hits: 1467
Downloads: 793
Rating: 5.00 (2 Vote(s))
File size: 290.3 KB
Added by: firefly

Comment:
There are no comments for this image



Previous Plan:
Pottier P 100 TS (Plan and Article)  
 Next Plan:
Powered Glider (1920)

 

 

RSS Feed: Poulin JP-30 (Revised - CG added) (Comments)