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gap seals

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airman(at)appledumplings.
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Posted: Sun Jun 04, 2006 9:52 am Post subject: gap seals

Does anyone have information on what can/has been done with gap seals  

on tigers? What needs to be done on the legal side too?

I read a couple articles but dont have a good understanding. One that  

I read talked about using hose insulation to close the whole between  

the cowling and spinner.   Any information is welcomed in this area.   

How about vortex generators also?

Thanks as always,

Thomas

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GrummanDude

Joined: 15 Jan 2006
Posts: 926
Location: Auburn, CA

Posted: Sun Jun 04, 2006 11:10 pm Post subject: gap seals

Closing the gap to the spinner has little or no effect on anything.   

 

 You can close the gap between your flap and wing walk/wing root, by not cutting the rubber seal and extending the top to go past the wing trailing edge to the flap trailing edge.

 

 As for the other gaps, yes, I have tried a few things ... for gods sake don't tell the FAA.   The change is negligible and not worth the aggravation of trying to make it legal.

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_________________
Gary
AuCountry Aviation
Home of Team Grumman

bruce.smith(at)york.com
Guest

Posted: Mon Jun 05, 2006 5:03 am Post subject: gap seals

I think that Gary has addressed the gap seal issue pretty well. As far 

as the vortex generators are concerned, if there were true gains to be 

had by them, someone like Microdynamics would have come out with a kit 

for the Tigers/Cheetahs/Travelers by now.



Just out of curiosity, what do you hope to achieve with VGs? Lower stall 

speed? I really don't think you'd see much in the way of a stall speed 

reduction. A woman who flies out of the field I do has them on her 177. 

She says that she really can't notice whether or not the stall speed has 

gone down. She did report that it seems to handle turbulence better. I 

haven't flown that plane, so I'll withhold comment on the turbulence 

smoothing aspect of the VGs.



Bruce



airman(at)appledumplings.com said the following on 6/4/2006 1:50 PM:

 	  Quote: 	
		   

 <airman(at)appledumplings.com>

 Does anyone have information on what can/has been done with gap seals 

 on tigers? What needs to be done on the legal side too?

 I read a couple articles but dont have a good understanding. One that 

 I read talked about using hose insulation to close the whole between 

 the cowling and spinner.   Any information is welcomed in this area.  

 How about vortex generators also?

 Thanks as always,

 Thomas



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FLYaDIVE(at)aol.com
Guest

Posted: Mon Jun 05, 2006 10:02 am Post subject: gap seals

In a message dated 6/5/06 9:04:07 AM Eastern Daylight Time, 

bruce.smith(at)york.com writes:



 	  Quote: 	
		   A woman who flies out of the field I do has them on her 177. 

  She says that she really can't notice whether or not the stall speed has 

  gone down. She did report that it seems to handle turbulence better. I 

  haven't flown that plane, so I'll withhold comment on the turbulence 

  smoothing aspect of the VGs.

  

  Bruce

======================
	


Bruce:



On the 177 it depends which wing you have.  The first wing installed has 

abrupt stall characteristics.  If the plane has the 'B' version or cuffed wing 

then the VG would make little to no difference.



Barry

"Chop'd Liver"

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