Thorp Air Command - T18.net

Supporting Owners, Builders and Pilots of the Thorp T-18 and its variants.
It is currently Thu Mar 28, 2024 12:54 pm

All times are UTC - 6 hours [ DST ]




Post new topic Reply to topic  [ 29 posts ]  Go to page Previous  1, 2
Author Message
fytrplt
 Post subject: Re: Wing Root Fairings
PostPosted: Sun Apr 26, 2020 11:23 am 
Hero Member
Hero Member
User avatar

Joined: Tue Oct 20, 2009 8:07 pm
Posts: 1140
Images: 2
Location: Lakeland, Florida, USA
Image

Fairing made of metal.

_________________
Bob Highley
N711SH
SN 835
KLAL


Top
 Profile Personal album  
 
speedbird1
 Post subject: Re: Wing Root Fairings
PostPosted: Sun Apr 26, 2020 5:53 pm 
Jr. Member
Jr. Member

Joined: Wed Dec 11, 2019 8:39 pm
Posts: 66
Hi Bob,

They look like just what I need. I have sent you a PM.
Speedbird1

_________________
N872DD
200hp Lycoming


Top
 Profile  
 
fytrplt
 Post subject: Re: Wing Root Fairings
PostPosted: Tue May 05, 2020 4:49 pm 
Hero Member
Hero Member
User avatar

Joined: Tue Oct 20, 2009 8:07 pm
Posts: 1140
Images: 2
Location: Lakeland, Florida, USA
Image

Image

Image

Image

_________________
Bob Highley
N711SH
SN 835
KLAL


Top
 Profile Personal album  
 
Ryan Allen
 Post subject: Re: Wing Root Fairings
PostPosted: Tue May 05, 2020 6:12 pm 
Hero Member
Hero Member
User avatar

Joined: Wed Oct 21, 2009 6:10 pm
Posts: 1105
Images: 0
Location: Louisiana
Those are beautiful. You make it look so easy. What type aluminum do you use to make those?


Top
 Profile Personal album  
 
fytrplt
 Post subject: Re: Wing Root Fairings
PostPosted: Tue May 05, 2020 6:46 pm 
Hero Member
Hero Member
User avatar

Joined: Tue Oct 20, 2009 8:07 pm
Posts: 1140
Images: 2
Location: Lakeland, Florida, USA
It is .032 6061 T6. That said, I had to anneal it twice during the process. Annealing involves a magic marker and a torch.

_________________
Bob Highley
N711SH
SN 835
KLAL


Top
 Profile Personal album  
 
copterplt
 Post subject: Re: Wing Root Fairings
PostPosted: Sat May 16, 2020 10:58 pm 
Newbie
Newbie

Joined: Tue Oct 27, 2009 12:38 am
Posts: 21
Location: USA
A long time ago when he was still alive I was looking at the great wing fairings that Tom Hunter had made out of fiberglass and asked how he got them to fit the wing/fuslage angles. He said that he had stuck some sand paper along those surfaces and rubbed some foam along the surface untill he hade gotten the angles he needed on the foam and as I remember scrubbed/sanded off the upper surface until he got the proper angle of the dangle. Used that to lay up fiberglass.
I made some Hoerner wing tips not to long ago and they gave me another 8kts or so. I think the fairings are well worth the effort, Free air speed as were the wing tips. A great winter/ covid-19 project. Paul MacMichael


Top
 Profile  
 
Ryan Allen
 Post subject: Re: Wing Root Fairings
PostPosted: Sun May 17, 2020 9:13 am 
Hero Member
Hero Member
User avatar

Joined: Wed Oct 21, 2009 6:10 pm
Posts: 1105
Images: 0
Location: Louisiana
I have always wondered why there were a couple different wing tips out there being used. I guess the Hoerner tips are more aerodynamically efficient and that is where your speed gains come from?? What do Hoerner tips look like as opposed to the standard tips? To be candid, I ask because I will soon have install wing tips on my project and I am totally ignorant about the differences.


Top
 Profile Personal album  
 
fytrplt
 Post subject: Re: Wing Root Fairings
PostPosted: Sun May 17, 2020 12:44 pm 
Hero Member
Hero Member
User avatar

Joined: Tue Oct 20, 2009 8:07 pm
Posts: 1140
Images: 2
Location: Lakeland, Florida, USA
After thirty-six years and almost three thousand hours, N711SH gets wing root fairings.

Image

Image

_________________
Bob Highley
N711SH
SN 835
KLAL


Top
 Profile Personal album  
 
James Grahn
 Post subject: Re: Wing Root Fairings
PostPosted: Sun May 17, 2020 4:05 pm 
Hero Member
Hero Member

Joined: Sat Oct 24, 2009 7:16 pm
Posts: 1434
Images: 0
Location: USA
Bob, I’ll be very interested in hearing about any performance difference.
Ryan, I think I have pictures of both. Let me look.
Cubes


Top
 Profile Personal album  
 
James Grahn
 Post subject: Re: Wing Root Fairings
PostPosted: Sun May 17, 2020 4:12 pm 
Hero Member
Hero Member

Joined: Sat Oct 24, 2009 7:16 pm
Posts: 1434
Images: 0
Location: USA
Well, here is one picture that might help.
Cubes
Image


Top
 Profile Personal album  
 
fytrplt
 Post subject: Re: Wing Root Fairings
PostPosted: Sun May 17, 2020 4:35 pm 
Hero Member
Hero Member
User avatar

Joined: Tue Oct 20, 2009 8:07 pm
Posts: 1140
Images: 2
Location: Lakeland, Florida, USA
Did the test hop this morning with fairings installed. Very hot and bumpy. Couldn't really get good numbers. Stall series yielded no changes in airspeeds flaps up or down. Still 63 MPH up and 59 MPH down. Had full internal fuel, so CG was forward. One interesting difference was a high pitched whine or whistle as I approached the stall. Apparently, 711SH now has an aural stall warning.

_________________
Bob Highley
N711SH
SN 835
KLAL


Top
 Profile Personal album  
 
James Grahn
 Post subject: Re: Wing Root Fairings
PostPosted: Sun May 17, 2020 5:27 pm 
Hero Member
Hero Member

Joined: Sat Oct 24, 2009 7:16 pm
Posts: 1434
Images: 0
Location: USA
Still the same feel through the stall? I’m guessing the biggest difference will be in top end speed.
Cubes


Top
 Profile Personal album  
 
fytrplt
 Post subject: Re: Wing Root Fairings
PostPosted: Sun May 17, 2020 5:33 pm 
Hero Member
Hero Member
User avatar

Joined: Tue Oct 20, 2009 8:07 pm
Posts: 1140
Images: 2
Location: Lakeland, Florida, USA
Basically the same. I'll have to do more when I get a good day.

_________________
Bob Highley
N711SH
SN 835
KLAL


Top
 Profile Personal album  
 
copterplt
 Post subject: Re: Wing Root Fairings
PostPosted: Mon May 25, 2020 10:24 pm 
Newbie
Newbie

Joined: Tue Oct 27, 2009 12:38 am
Posts: 21
Location: USA
Heres the thing with the wing fairings, Years ago when he was still alive I saw Tom Hunters plane at Porterville and he had a beautiful set of wing fairings. When i asked how he made them he said that he stuck some long strips of sandpaper on each side and rubbed some foam along that area untill he got the inner shape and than sanded away the outer area on the remainder untill he had the profile he wanted. Layed up the fiber glass over that. You can buy the stick on strips at a auto body supply house.
I made some hoerner wing tips a few years ago, a project, but worked out great in that they gave me a nice kick in the butt. 7/8 kts faster, Cheap speed and better lateral control.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 29 posts ]  Go to page Previous  1, 2

All times are UTC - 6 hours [ DST ]


Who is online

Users browsing this forum: No registered users and 8 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:  
cron

[ Time : 0.280s | 13 Queries | GZIP : On ]