Piper PA8 skycycle - Page 2 - RC Groups
Thread Tools
May 11, 2012, 09:24 PM
Registered User
Very nice work!
Sign up now
to remove ads between posts
May 12, 2012, 02:01 AM
Registered User
mintie's Avatar
Both wings now covered,and ready to join together.
During the build I decided to keep an account of the weights through out the covering.
One plain core with the ply undercart mount wt was 39 gms
With the #1 & 2 coverings on both top and bottom the wt was 54gms wet
some core when the glue was all dry wt was 51 gms.
With #3 & 4 covering on the same core wt was 82 gms wet
same core when the glue was dry wt.was 69 gms.
The tissue tips glued on wt was 72 gms wet.
same when dry wt was 70 gms
At this stage both wings have turned out at 70 gms each finished. Pretty happy with that.
Strength wise.... well it is incredible how strong the wings are now.
One day might get round to doing some tests but at this stage all my wings have stood up to anything that I through at them,and that includes ic engine powered planes.
May 15, 2012, 04:45 AM
Registered User
mintie's Avatar
wings all glued together and the center bandage glued on.
Wing templates in place and foam all cut...Did this in two sections as wanted the first piece to glue to the wings under side.
Curiosity then got the better of me and had to have a wee mock up.
May 23, 2012, 04:15 AM
Registered User
mintie's Avatar
wings all bolted on and the tail plane glued in place..
Have now started covering the forward section of the fuse.
When thats all done will cut the Ailerons and run the controls , and the controls for the tail group.
May 23, 2012, 06:51 AM
What goes up must come down..
So I guess you hot wire your wing cores. ( excellent work!)
Can you elaborate more in a soon to come future the "how to" but for now about the airfoil templates that you used?
Thanks again good show.
May 24, 2012, 03:35 AM
Registered User
mintie's Avatar
Originally Posted by rodair
So I guess you hot wire your wing cores. ( excellent work!)
Can you elaborate more in a soon to come future the "how to" but for now about the airfoil templates that you used?
Thanks again good show.
OK first off,yes I cut all my wings out myself.and all the other foam bits as well.
I use card board templetes for all.These work very well for one off jobs and can be cut out very quick.

with out going into a big talk here can I ask you which bits you would really like me to elaborate on in the wing construction.
The airfoil templates are ones I got from a NASA colllection .Enlarged and put them onto card templates.
The next step is to mark out the foam on plan view the wing shape and cut that out.
next run a center line around the whole block ,and put in any washout that you want .
With the centers marked on the templates pin then into their place.
run the hot wire over and cut both sides .
I cut from the T/E towards the L/E.At this stage just leave every thing as one block
Next I made a template for the tip shape and cut that..
Now lift out the wing from the blank. and give the L/E and T/E a light sand .
Hope this helps you a bit,if you need any more just send a PM
The pics give you a rough idea. the blanks shown are the ones from the Skycycle wings.
Interesting as we will be in Canada from August this year and will be in montreal.
May 26, 2012, 10:29 PM
Registered User
mintie's Avatar
working on the ailerons now.....first draw out the outline both top and bottom.
Then use a fine tooth saw down from the T/E into the center on both ,then with a very sharp knife cut from end to end coming from top and bottom and the aileron should just fall out.
Next mark out where the control rod runs and cut two lines down to half the depth of the wing and just wide enough for the rod,enlarging a bit at the two ends for the bush to fit.These slots should be on the under side of the wing.
At the center there needs to be a slot for the inside of the rod to come through and have the connection on.
Clean out the lose foam and fit the rod with a bit of glue around the bearings.
When that is dry put some filler into the groove and then glue a strip of paper over it and thats it,all done then repeat on the other side.
Next will be the ailerons and the fitment.
May 26, 2012, 10:45 PM
Registered User
AirspeedNZ's Avatar
Lovely work there Hope the earthquakes are interfering too much.

May 28, 2012, 05:23 AM
Registered User
mintie's Avatar
Thanks for the comments guys.
I manage a little bit each night and will post more pics when there is good progress.
I am working on two aircraft at a time but only posting on this build.

No the earthquakes are now just part of living down here so one just gets on with what you normally do.
May 28, 2012, 05:23 PM
Suspended Account
Nice. Looking forward how you finish the News paper covering.
May 28, 2012, 08:20 PM
Suspended Account
How much did you have to thin out the PVA Glue? Interested in your News Paper technique.
May 29, 2012, 05:40 AM
Registered User
mintie's Avatar
Originally Posted by evapilotaz
How much did you have to thin out the PVA Glue? Interested in your News Paper technique.
HI.... usually thin around 10 - 20 %.you dont want it to thin.,just enough so it spreads better but still has the glue properties there.
I put a coat on the foam and also coat the news print..This makes it a lot more workable and gives you good coverage.
Have a look at my Blog and you will see the last plane I did as it is documented there.[PA 28-140]
May 29, 2012, 10:40 AM
Suspended Account
Thanks Mintie. I will check out your blog
Jun 03, 2012, 01:09 AM
Registered User
mintie's Avatar
Ailerons all glued in and connected up and working.
Rudder and elevator servos in and the elevator working
ESC mounted on the fire wall and had the motor running.
Just need to connect up the rudder and all done.
Canopy mold over half way there.
Jul 02, 2012, 02:51 AM
Registered User
mintie's Avatar
construction all done and had the plane running around the back grass area at home.
Everything works just fine and plenty of power.
Need to pull another canopy as not happy with this one,then put a bit of colour on after the test flight.

Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Question Piper Pa-8 Skycycle megawatt Scale Kit/Scratch Built 15 Jan 29, 2016 06:49 AM
Piper PA-8 Skycycle - no documentation? ivo Scale Fuel Planes 15 Jan 27, 2016 08:22 PM
Discussion Piper Pawnee 33% or 40% Piper Cub? behour Fuel Plane Talk 6 Jan 16, 2012 11:38 AM
Piper Skycycle cmartin Scratchbuilt Indoor and Micro Models 28 Jun 08, 2008 07:10 PM
MA Mar 86 / Piper PA-8 Skycycle Question crashsiegel Electric Plane Talk 0 Nov 15, 2003 06:27 PM