Go Back  RCU Forums > RC Airplanes > Pattern Universe - RC Pattern Flying > Classic RC Pattern Flying
Reload this Page >

Prettner’s 1987 Supra Star 60 build thread

Notices
Classic RC Pattern Flying Discuss here all pre 1996 RC Pattern Flying in this forum.

Prettner’s 1987 Supra Star 60 build thread

Old 06-08-2020, 10:55 PM
  #1  
ehsanmorshedi
Thread Starter
 
Join Date: Nov 2009
Location: TehranTehran, IRAN
Posts: 136
Received 17 Likes on 11 Posts
Default Prettner’s 1987 Supra Star 60 build thread

Hi all

Finally I found a lot of time in quarantine days of COVID19 to make one of my favorites.

this will be an image based thread with no or less explanation.

Ehsan

Foam cores from 12kg/m3 density foam. Cut with a simple home made hot wire foam cutter

1.5 mm balsa skin





Foam is hollowed with dremel and round Cylindrical sandpaper





Reinforcement of wing and landing gear mount with glass fiber strips an carbon thread










Old 06-08-2020, 11:10 PM
  #2  
ehsanmorshedi
Thread Starter
 
Join Date: Nov 2009
Location: TehranTehran, IRAN
Posts: 136
Received 17 Likes on 11 Posts
Default







































Old 06-08-2020, 11:23 PM
  #3  
ehsanmorshedi
Thread Starter
 
Join Date: Nov 2009
Location: TehranTehran, IRAN
Posts: 136
Received 17 Likes on 11 Posts
Default
































Old 06-08-2020, 11:32 PM
  #4  
ehsanmorshedi
Thread Starter
 
Join Date: Nov 2009
Location: TehranTehran, IRAN
Posts: 136
Received 17 Likes on 11 Posts
Default


























Old 06-09-2020, 12:00 AM
  #5  
ehsanmorshedi
Thread Starter
 
Join Date: Nov 2009
Location: TehranTehran, IRAN
Posts: 136
Received 17 Likes on 11 Posts
Default
























The following 2 users liked this post by ehsanmorshedi:
dhal22 (08-22-2020), Jetstream (08-15-2020)
Old 06-09-2020, 12:21 AM
  #6  
ehsanmorshedi
Thread Starter
 
Join Date: Nov 2009
Location: TehranTehran, IRAN
Posts: 136
Received 17 Likes on 11 Posts
Default

I will post more images soon
Old 06-09-2020, 02:02 AM
  #7  
airsteve172
 
Join Date: Jun 2005
Location: , NY
Posts: 257
Likes: 0
Received 10 Likes on 10 Posts
Default

It's so nice to see clean workmanship!!!
Old 06-09-2020, 03:25 AM
  #8  
ehsanmorshedi
Thread Starter
 
Join Date: Nov 2009
Location: TehranTehran, IRAN
Posts: 136
Received 17 Likes on 11 Posts
Default























The following users liked this post:
Jetstream (08-15-2020)
Old 06-09-2020, 03:39 AM
  #9  
ehsanmorshedi
Thread Starter
 
Join Date: Nov 2009
Location: TehranTehran, IRAN
Posts: 136
Received 17 Likes on 11 Posts
Default



























The following 2 users liked this post by ehsanmorshedi:
dhal22 (08-22-2020), Jetstream (08-15-2020)
Old 06-09-2020, 03:44 AM
  #10  
ehsanmorshedi
Thread Starter
 
Join Date: Nov 2009
Location: TehranTehran, IRAN
Posts: 136
Received 17 Likes on 11 Posts
Default




Special thanks to my son, Parsa, for his help in covering❤️❤️

Last edited by ehsanmorshedi; 06-09-2020 at 03:48 AM.
The following 2 users liked this post by ehsanmorshedi:
dhal22 (08-22-2020), Jetstream (08-15-2020)
Old 06-09-2020, 04:14 AM
  #11  
ehsanmorshedi
Thread Starter
 
Join Date: Nov 2009
Location: TehranTehran, IRAN
Posts: 136
Received 17 Likes on 11 Posts
Default









canopy was for a crashed ARF CAP 232 , nice match


















Last edited by ehsanmorshedi; 06-09-2020 at 06:09 AM.
The following 2 users liked this post by ehsanmorshedi:
dhal22 (08-22-2020), Jetstream (08-15-2020)
Old 06-09-2020, 06:06 AM
  #12  
ehsanmorshedi
Thread Starter
 
Join Date: Nov 2009
Location: TehranTehran, IRAN
Posts: 136
Received 17 Likes on 11 Posts
Default






























The following 2 users liked this post by ehsanmorshedi:
dhal22 (08-22-2020), Jetstream (08-15-2020)
Old 06-09-2020, 07:03 AM
  #13  
Frédéric Garnier
 
Join Date: Dec 2019
Location: SAINT GERMAIN EN LAYE
Posts: 103
Likes: 0
Received 1 Like on 1 Post
Default

Beautiful building.
Old 06-09-2020, 08:30 AM
  #14  
doxilia
My Feedback: (3)
 
doxilia's Avatar
 
Join Date: Apr 2008
Location: Montreal, QC, CANADA
Posts: 5,200
Likes: 0
Received 3 Likes on 3 Posts
Default

Ehsan,

outstanding build!

congratulations on a beautiful job.

I see that Deluxe Materials is well represented in your neck of the woods.

I’m expecting some water borne (WB) Sand ‘n’ Seal wood grain sanding sealer from them in a day or two. Curious if it’s as effective as dope based products.

BTW, I’m not sure the WB Eze-Kote Polycrylic is very fuel proof. It’s a glass embedding resin. They do have a product called Eze-Dope which is also WB and is fuel proof to 40% nitro (tested). I thinks it’s essentially cross linked Polycrylic or something similar. Intended for attaching tissue to light wood frameworks but works for fuel proofing firewalls too! Of course, the Z-Poxy Finishing Resin is amazing too.

David

P.S. Interesting wing attachment method!
Old 06-09-2020, 09:50 AM
  #15  
ehsanmorshedi
Thread Starter
 
Join Date: Nov 2009
Location: TehranTehran, IRAN
Posts: 136
Received 17 Likes on 11 Posts
Default

Hi David,

I have used EZ dope on my tissue covered P-30 rubber planes a lot.

have not tested if it is fuel proof or not but I’m sure its not water proof unless is applied in several thinned layers or a straight coat.

the other product I love is cover grip. It works just like its thinner based brother “stix it” .

dries fast and sticks well after applying heat and pressure even on oily balsa.

I have also used EZ dope on my F2B planes to seal poly span covering





Old 06-09-2020, 10:26 AM
  #16  
ehsanmorshedi
Thread Starter
 
Join Date: Nov 2009
Location: TehranTehran, IRAN
Posts: 136
Received 17 Likes on 11 Posts
Default
























The following users liked this post:
Jetstream (08-15-2020)
Old 06-09-2020, 10:31 AM
  #17  
ehsanmorshedi
Thread Starter
 
Join Date: Nov 2009
Location: TehranTehran, IRAN
Posts: 136
Received 17 Likes on 11 Posts
Default

Hope this image based build thread was interesting for all of you classic pattern lovers.

Regards,
Ehsan
Old 06-10-2020, 12:58 AM
  #18  
ceccherini.v
 
Join Date: Oct 2005
Location: Poggio Mirteto, ITALY
Posts: 8
Likes: 0
Received 0 Likes on 0 Posts
Default Supra Star

Really well done job, congratulations, how much does it weigh in flight order? I have just finished building the Calypso from Rodney Ford's plan and would like to make another Prettner model, is it possible to have a copy of the Supra Star project?

Thanks in advance for the answer
Old 06-10-2020, 02:46 AM
  #19  
ehsanmorshedi
Thread Starter
 
Join Date: Nov 2009
Location: TehranTehran, IRAN
Posts: 136
Received 17 Likes on 11 Posts
Default

Originally Posted by ceccherini.v View Post
Really well done job, congratulations, how much does it weigh in flight order? I have just finished building the Calypso from Rodney Ford's plan and would like to make another Prettner model, is it possible to have a copy of the Supra Star project?

Thanks in advance for the answer
Hi,

plans are available in “ outerzone.co.uk “ for free download, but the name is dupli star instead of Supra Star.

Weight without fuel is 3570gr
powered with OS AX 75 turning a 12x8 prop

I also tested 13x7 but flys better with 12x8
and now after 40 flys has been trimmed well, and now I just flip the prop and enjoy.

strongly recommended to build.

by the way please share some photos of your newly born Calypso.



Ehsan
Old 06-17-2020, 01:57 PM
  #20  
H5606
 
Join Date: Jul 2006
Location: , MD
Posts: 890
Received 34 Likes on 33 Posts
Default

Immaculate craftsmanship and thorough documentation!

Thanks very much for sharing -
The following users liked this post:
ehsanmorshedi (06-20-2020)
Old 08-13-2020, 12:24 AM
  #21  
cap102
 
Join Date: Jan 2012
Location: Hamburg, GERMANY
Posts: 22
Likes: 0
Received 0 Likes on 0 Posts
Default

Hi Ehsan,

it was a pleasure to watch your build!! Thank you very much!!
This is the Curare I built from scratch.

Regards

Achim

Old 08-15-2020, 06:15 PM
  #22  
Jetstream
My Feedback: (6)
 
Join Date: Jan 2003
Location: Peachtree City, GA
Posts: 48
Received 2 Likes on 2 Posts
Default

Very nice work! Enjoyed the build thread 👍
Old 08-22-2020, 04:39 PM
  #23  
dhal22
 
Join Date: Aug 2006
Location: Roswell, GA
Posts: 5,685
Received 5 Likes on 5 Posts
Default

Just getting to this thread. Wonderful work.
Old 09-20-2020, 12:37 AM
  #24  
bandit_av
My Feedback: (1)
 
Join Date: Jul 2003
Location: tel-aviv, ISRAEL
Posts: 252
Received 4 Likes on 1 Post
Default

Hi Ehsan
It was a pleasure to read your thread, a real awesome craftsman work and very knowledgeable thread.

Old 10-02-2020, 04:45 AM
  #25  
AndyMay
Junior Member
 
Join Date: Apr 2020
Posts: 1
Likes: 0
Received 0 Likes on 0 Posts
Default

Superb pictures and meticulous build . Thank you for taking the trouble to post the log .

Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -

Copyright © 2021 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.