Sponsor Message:
Aviation Technical / Operations Forum
My Starred Topics | Profile | New Topic | Forum Index | Help | Search 
Gap Seals And Other Mods For Small A/C  
User currently offlineMiles_mechanic From Canada, joined Sep 2001, 137 posts, RR: 0
Posted (9 years 6 months 1 week 1 day 7 hours ago) and read 4628 times:

I have been doing some reading on mods you can do to the Cessna 172, 182, etc. And the Piper Cherokee series and notice how the addition of gap seals on the flaps and ailerons as well as different wheel pants and on the Cherokees some enhancements to the wing can give the airplane as much as 35 MPH extra speed.
I am wondering if anyone has had experience with these types of mods on there airplane, and how they have affected the handling qualities of the airplane, and if they just gave it better speed or if it made the climb better or runway performance better also.
A friend of mine has a Mooney and they installed some new performance stuff to the wing on it and she reported that the handling quality was not the same, it was faster but didn't handle as good in slow flight or stalls.

Any help with these questions would be appreciated, and if the increases have been as good as stated by the manufacturers

Regards

Miles

2 replies: All unread, jump to last
 
User currently offlineBuzz From United States of America, joined Nov 1999, 697 posts, RR: 21
Reply 1, posted (9 years 6 months 1 week 22 hours ago) and read 4511 times:

HI Miles, Buzz here. Gap seals would fall into the Supplemental Type Certificate area, if somebody did it they'd need to get the mod FAA approved as it wasn't originally built that way.
I forget if the LoPriesti mods added gap seals. While sweating out slowly climbing Cessna 150's in the summer i've wondered if seals would improve what little lift i was generating.
A lot of DC-3's / C-47's have aileron gap seals installed, a strip of metal covers most of the gap between aft spar and aileron leading edge. It helps a little bit, less air leaking from top to bottom. I recall reading of an AC-47 that had one removed, tended to roll away from the side where the seal was still installed.
Some ultralight aircraft (which don't fall under the FAA's supervision) have tape to seal the gap between elevator and horiz. stab. I don't know what would happen if you removed it.
g'day


User currently offlineCaboclo From United States of America, joined Nov 2004, 203 posts, RR: 0
Reply 2, posted (9 years 6 months 5 days 7 hours ago) and read 4430 times:

Take that "35 MPH" with several grains of salt; it'll help, but probably not that much.


Freight dogs have more fun
Top Of Page
Forum Index

Reply To This Topic Gap Seals And Other Mods For Small A/C
Username:
No username? Sign up now!
Password: 


Forgot Password? Be reminded.
Remember me on this computer (uses cookies)
  • Tech/Ops related posts only!
  • Not Tech/Ops related? Use the other forums
  • No adverts of any kind. This includes web pages.
  • No hostile language or criticizing of others.
  • Do not post copyright protected material.
  • Use relevant and describing topics.
  • Check if your post already been discussed.
  • Check your spelling!
  • DETAILED RULES
Add Images Add SmiliesPosting Help

Please check your spelling (press "Check Spelling" above)


Similar topics:More similar topics...
Flight And Ops Procedures For NASA's B747 SCA posted Fri May 12 2006 19:44:28 by 2H4
Other Forums For Aircraft Mechanics? posted Fri Feb 24 2006 19:05:11 by Aogdesk
Companies That Sell NDBs And Other Navaids posted Tue Feb 7 2006 14:48:06 by LPLAspotter
30yrs Of Age And Too Old For Air Traffic Training posted Wed Nov 2 2005 23:11:03 by Julesmusician
SB601R-28-055 And Other Useless Tasks posted Sun Oct 30 2005 00:34:57 by Ilikeyyc
Plates, Procedures And Navaid Positions For Kaitak posted Fri Oct 28 2005 18:48:11 by SK973
Pilot Announcement And Other Questions posted Mon May 16 2005 16:06:12 by Travelplus
747SUD And Other Emergency AD posted Fri Feb 18 2005 20:31:45 by Meister808
Insurance Rates For Small GA posted Tue Feb 1 2005 11:21:25 by Arniepie
Meteorite Strike And Other Bizarre Failures posted Tue Nov 30 2004 23:57:07 by Bsergonomics

Sponsor Message:
Printer friendly format