Go Back  RCU Forums > RC Airplanes > RC Scale Aircraft
 Tiger Moth Plan Problem >

Tiger Moth Plan Problem

Notices
RC Scale Aircraft Discuss rc scale aircraft here (for giant scale see category above)

Tiger Moth Plan Problem

Old 11-16-2010, 08:35 PM
  #1  
Thread Starter
 
Join Date: Jun 2009
Location: Warrandyte, AUSTRALIA
Posts: 22
Likes: 0
Received 0 Likes on 0 Posts
Default Tiger Moth Plan Problem

Hi All,

I am scratch building a 47.5" Tiger Moth from Gordon Whitehead plans purchased from RCM Plans. The plan number is 793.

I have an issue regarding the front former "F1". On the plan, it is asymmetrical. Running down the centre line, the bottom of the former is 19mm from centre to one side and 23mm from centre to the other side.

I know the actual shape of the port and starbord cowls have different curves going back from their leading edges. The issue is with the asymmetrical former which is actually at the very front of these cowls, ie, the leading edges. So, if I look at the model head on, I would see one side sloping in more than the other before the two cowls start to bulge out.

Questions:-
1. Is the former (and therefor the nose) supposed to be asymmetrical or not.
2. If it asymmetrical, what side cuts in more than the other - port or starbord.
3. Is this likely to be a mistake on the plan.

I think the plan is at fault and if I look head on, the model should be symmetrical at the leading edge of the cowls.

Interested to hear if anyone else has noticed this.

Cheers,
Frank
Old 11-17-2010, 01:55 AM
  #2  
My Feedback: (71)
 
Join Date: Sep 2002
Location: Portsmouth, NH
Posts: 193
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Tiger Moth Plan Problem

Don't forget there is a big protruding oil tank on the port side.
Old 11-17-2010, 12:32 PM
  #3  
Senior Member
 
Join Date: Aug 2002
Location: Jonkoping, SWEDEN
Posts: 1,301
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Tiger Moth Plan Problem

Old 11-17-2010, 04:18 PM
  #4  
Thread Starter
 
Join Date: Jun 2009
Location: Warrandyte, AUSTRALIA
Posts: 22
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Tiger Moth Plan Problem

Thanks Red B.

That pretty much says it all.

Frank
Old 11-17-2010, 09:30 PM
  #5  
My Feedback: (10)
 
Join Date: May 2008
Location: Kingston, ON, CANADA
Posts: 535
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Tiger Moth Plan Problem

I think you are seeing the designer's intended side thrust built into the nose. Gordon Whitehead knows a thing or two about both designing and drawing - if the copy is true, things will fit.

Martin
Old 11-17-2010, 10:51 PM
  #6  
My Feedback: (71)
 
Join Date: Sep 2002
Location: Portsmouth, NH
Posts: 193
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Tiger Moth Plan Problem

Here's a couple of shots with the cowls open.

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are On


Thread Tools
Search this Thread

Contact Us - Manage Preferences Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.