Thorp Air Command - T18.net

Supporting Owners, Builders and Pilots of the Thorp T-18 and its variants.
It is currently Sat Dec 21, 2024 10:46 pm

View unanswered posts | View active topics


Board index » Thorp T-18 » Fuselage & Empennage

All times are UTC - 6 hours [ DST ]



Post new topic Reply to topic  Page 1 of 1
  [ 9 posts ] 
  Print view Previous topic | Next topic 
Author Message
Jon Linke
 Post subject: Aileron hinge
PostPosted: Wed Jan 19, 2011 7:50 pm 
Newbie
Newbie

Joined: Wed Jul 07, 2010 5:18 pm
Posts: 4
Location: Dayton, NV
Is there any operational experience with a full span aileron hinge? Is rear spar bending a concern for a full span hinge, creating a possible bind?
Thanks, Jon Linke #1321


Last edited by Anonymous on Wed Jan 19, 2011 7:50 pm, edited 1 time in total.

Top
 Profile  
 
Rich Brazell
 Post subject: Aileron hinge
PostPosted: Wed Jan 19, 2011 9:52 pm 
Hero Member
Hero Member

Joined: Wed Oct 21, 2009 12:33 pm
Posts: 3108
Images: 64
Location: Jamul, CA (San Diego area)
Reason for installing a full span hinge ? Makes gettin that hinge pin in a bit of a talley wack ! Plus the extra weight.

RB


Last edited by admin on Wed Jan 19, 2011 9:52 pm, edited 1 time in total.

Top
 Profile Personal album  
 
mac nussey
 Post subject: Aileron hinge
PostPosted: Thu Jan 20, 2011 6:29 am 
Newbie
Newbie

Joined: Fri Oct 23, 2009 6:20 pm
Posts: 4
Location: Canada
There is a reference somewhere back in a NL or the forum re: a binding problem. If I can find it I'll post it.

Mac Nussey


Last edited by admin on Thu Jan 20, 2011 6:29 am, edited 1 time in total.

Top
 Profile  
 
leewwalton
 Post subject: Aileron hinge
PostPosted: Thu Jan 20, 2011 8:48 am 
Administrator
Administrator
User avatar

Joined: Tue Oct 20, 2009 4:09 pm
Posts: 1715
Images: 107
Location: Houston, TX
Mac is right. I had this conversation with my dad years ago (aspiring young engineer's curiosity). Dad never discouraged that when it came to the airplane and mailed off a letter to John Thorp. The response was that a full span piano hinge was a no no in his book due to the potential for binding.

_________________
Lee Walton
Houston, TX
N51863,N118LW
KEFD


Last edited by admin on Thu Jan 20, 2011 8:48 am, edited 1 time in total.

Top
 Profile Personal album  
 
Doug S
 Post subject: Aileron hinge
PostPosted: Thu Jan 20, 2011 2:21 pm 
Full Member
Full Member
User avatar

Joined: Thu Oct 22, 2009 8:35 am
Posts: 129
Location: Daytona Bch, FL
As a wee lad I to remember such discussions & I think someone had actually built a plane that way. They quickly found aileron stick forces extremely high.


Last edited by admin on Thu Jan 20, 2011 2:21 pm, edited 1 time in total.

Top
 Profile  
 
Rich Brazell
 Post subject: Aileron hinge
PostPosted: Thu Jan 20, 2011 2:21 pm 
Hero Member
Hero Member

Joined: Wed Oct 21, 2009 12:33 pm
Posts: 3108
Images: 64
Location: Jamul, CA (San Diego area)
I came across this subject a while back, not sure exactly where. May have been a very early NL or post ?

RB


Last edited by Rich Brazell on Thu Jan 20, 2011 2:21 pm, edited 1 time in total.

Top
 Profile Personal album  
 
leewwalton
 Post subject: Aileron hinge
PostPosted: Fri Jan 21, 2011 8:04 pm 
Administrator
Administrator
User avatar

Joined: Tue Oct 20, 2009 4:09 pm
Posts: 1715
Images: 107
Location: Houston, TX
Lu Sunderland Quote from NL 03/06/1972

"The full-length aileron hinge makes a good seal, but is not a
good idea because of the potential for high binding friction.
When I added two segments to the S-18 aileron hinge because
of reported wear in T-18 hinges, John Thorp was upset. He
said that he had gone to great pains to reduce the aileron
control friction to a minimum and hated to see anyone put
friction in the system unnecessarily. Since it is impossible
to get perfect alignment between the mating halves of a piano
hinge, there is inevitable binding in the hinge as it rotates
and forces the two mating structures to bend by an amount
equal to the misalignment."

_________________
Lee Walton
Houston, TX
N51863,N118LW
KEFD


Last edited by admin on Fri Jan 21, 2011 8:04 pm, edited 1 time in total.

Top
 Profile Personal album  
 
admin
 Post subject: Aileron hinge
PostPosted: Fri Jan 21, 2011 8:05 pm 
Administrator
Administrator

Joined: Tue Oct 20, 2009 2:21 pm
Posts: 176
Location: USA
I got a full span piano hinge 360 hours. its not binding at all.. J.P

*** admin posted for James Peran ***

_________________
Forum Administrator


Last edited by admin on Fri Jan 21, 2011 8:05 pm, edited 1 time in total.

Top
 Profile  
 
admin
 Post subject: Aileron hinge
PostPosted: Fri Jan 21, 2011 9:10 pm 
Administrator
Administrator

Joined: Tue Oct 20, 2009 2:21 pm
Posts: 176
Location: USA
Some one forget to tell the people who design the Hercules aircraft...
BTW.they replacing the pins after 500 hours. J.P

*** admin posted for Jame Peran ***

_________________
Forum Administrator


Last edited by admin on Fri Jan 21, 2011 9:10 pm, edited 1 time in total.

Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  Page 1 of 1
  [ 9 posts ] 

Board index » Thorp T-18 » Fuselage & Empennage

All times are UTC - 6 hours [ DST ]

Who is online

Users browsing this forum: No registered users and 7 guests

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  

[ Time : 0.236s | 11 Queries | GZIP : On ]