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bakerocb
Joined: 15 Jan 2006
Posts: 727
Location: FAIRFAX VA
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 Posted: Wed Mar 09, 2011 5:07 am Post subject: KIS TR-1 Gear Gap |
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3/9/2011
Hello Al, You wrote:
1) " Has anyone not done this?"
That would be me.
2) "Wonder how big a difference it would make in parasitic drag."
I suspect very little because the air in that area is already very turbulent
because of:
A) Disturbance caused by engine exhaust coming out of the exhaust pipes.
B) Disturbance caused by the exhaust pipes themselves sticking out into the
air flow.
C) Disturbance caused by engine cooling air exiting out of the bottom rear
of the engine cowling.
I may cover over the gap some day, but it would be more cosmetically
motivated than performance motivated.
'OC' Baker Says: "The best investment we can make is the time and effort to
gather and understand knowledge."
======================================================
From: "ALFRED ROSA" <fredorosa(at)gmail.com>
To: "kisbuilders" <kis-list(at)matronics.com>
Sent: Tuesday, March 08, 2011 10:41 AM
Subject: Gear gap
| Quote: | I'm considering not bothering to cover the landing gear indent in the
bottom
of the fuselage.
Has anyone not done this? Wonder how big a difference it would make in
parasitic drag.
Al
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fredorosa(at)gmail.com
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| Posted: Wed Mar 09, 2011 7:43 am Post subject: KIS TR-1 Gear Gap |
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OK, thanks. That's one less job to do.
Al
On Wed, Mar 9, 2011 at 8:05 AM, <bakerocb(at)cox.net (bakerocb(at)cox.net)> wrote:
[quote]--> KIS-List message posted by: <bakerocb(at)cox.net (bakerocb(at)cox.net)>
3/9/2011
Hello Al, You wrote:
1) " Has anyone not done this?"
That would be me.
2) "Wonder how big a difference it would make in parasitic drag."
I suspect very little because the air in that area is already very turbulent because of:
A) Disturbance caused by engine exhaust coming out of the exhaust pipes.
B) Disturbance caused by the exhaust pipes themselves sticking out into the air flow.
C) Disturbance caused by engine cooling air exiting out of the bottom rear of the engine cowling.
I may cover over the gap some day, but it would be more cosmetically motivated than performance motivated.
'OC' Baker Says: "The best investment we can make is the time and effort to gather and understand knowledge."
====
From: "ALFRED ROSA" <fredorosa(at)gmail.com (fredorosa(at)gmail.com)>
To: "kisbuilders" <kis-list(at)matronics.com (kis-list(at)matronics.com)>
Sent: Tuesday, March 08, 2011 10:41 AM
Subject: Gear gap
| Quote: | I'm considering not bothering to cover the landing gear indent in the bottom
of the fuselage.
Has anyone not done this? Wonder how big a difference it would make in
parasitic drag.
Al
|
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