Thread Tools
This thread is privately moderated by old4570, who may elect to delete unwanted replies.
Apr 02, 2019, 05:49 PM
Registered User
old4570's Avatar
Thread OP

Minimum RC Piper J3 - Minimum RC Piper J3 @

I saw this on and thought - how cute is that !
With Oz Wizards becoming crazy %^&^&#$^*'s and criminalising RC in Oz , it looks like law abiding citizens need to think smaller if they dont want to be licensed and registered like gun owners for flying model air-planes .

So with crazy Wizards running Oz !

This be a very small J3

Wingspans : 360mm
Length : 290mm
Weight : 25g
Motor : 720 coreless motor

My plan is to use one of my precious V911 boards to fly the J3 .
So as pictured , is where the stock build ends ... And the V911 conversion starts .

Comprises of 3 pieces of depron glued together
This makes for a light yet relatively stiff sheet fuse .
Only issue I see , is the section for the Rud / Ele is left as a single sheet . This makes the tail somewhat flexible and weak . ( Could be an issue )
Also be sure to alight correctly as the two outer pieces are used to create a slot for gluing the wing into .

Rud / Ele:
The rudder seems fine , but you need to be careful gluing the elevator .. It needs to be located carefully so it does not sit too far forward or to far back .
Also it is best to get your angles correct . the ele does not just sit there while the glue dries , it tended to droop for me .. So I needed something under one ele tip to maintain that 90deg angle with the rudder while the glue dried ..

Landing Gear:
There are some ply plates that can be used to sandwich the music wire legs .. I did this and then cyno'ed .. then I glued the assembly into the fuse ..

Just ply plates and some foam doughnuts .. Just glue as needed .. I only used one ply plate as I did not want the weight .

Wing support:
There is a T shaped piece of ply that needs to be glued in ontop the fuse .. Easy peasy !

Just crack the wing fold line gently ( to create a air foil shape ) .. Then glue the wing into the wing slot in the fuse ... Also glue it to the support ply ..
Is it a spar ? ( possibly )

Thats where I am at .. Plus I glued the motor in and put some of the Decals on ..
I checked the CG at this point , and it looks to be very close to the wing fold ...
Hmmm , it actually glides very nicely ( short indoor glide onto a bed ) .. So I have hope for the little J3 , that it will fly and Rc .

Sign up now
to remove ads between posts

Quick Reply
Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
New Product Dancing Wings Hobby Piper J3 Cub 1800mm Wingspan Balsa Wood Laser Cut RC Airplane PNP Merch 0 Mar 22, 2019 06:16 AM
Discussion Piper j3 cub recommendation Dion69 Foamies (Kits) 2 Oct 28, 2015 10:20 PM
Video RC Piper J3 Landing on the mark - Club Bitaches tatoespinosa Fuel Plane Talk 0 Jan 25, 2012 12:36 PM
Video Dynam Super Detail 4 Ch Piper J3 Cub 1245mm RC Plane hobbypartz Electric Plane Talk 0 Aug 30, 2011 05:13 PM