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1. 08:11 AM - Re: Removal of Main Gear Doors (Barry Collman)
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Subject: | Removal of Main Gear Doors |
Hi Stan,
Grateful thanks, and also to Deneal & Moe.
Very Best Regards,
Barry
-----Original Message-----
From: owner-commander-list-server@matronics.com
[mailto:owner-commander-list-server@matronics.com] On Behalf Of Stan
Sent: 10 January 2011 05:56
Subject: RE: Commander-List: Removal of Main Gear Doors
Hi Barry,
I know this isn't an answer to either of your questions, but I've done some
investigating into these clamshell doors, and here's what I've found out,
thanks to Morris:
The advantage to having the clamshell doors is about a 5 knot gain in cruise
speed. The disadvantage is that the increased complexity of the sequencing
to open and close the clamshells at just the right time increases gear
operating times from the six-second range to about 20 seconds. There's also
more chance of something not sequencing correctly, the doors being out of
adjustment, etc.
All things considered, I'd rather *not* have them.
More to your original question: I found an ad for a 690B for sale, and it
listed several STCs that had been done (including the clamshell door
removal, which it identified as SA8214SW). I found only one of the four STCs
on the FAA that was both present and correct: the one for replacement of the
exhaust ejectors. So you may have the right info, and it's just the FAA
database that's a problem.
Regards,
Stan
-----Original Message-----
From: owner-commander-list-server@matronics.com
[mailto:owner-commander-list-server@matronics.com] On Behalf Of Barry
Collman
Sent: Sunday, January 09, 2011 11:20 AM
Subject: Commander-List: Removal of Main Gear Doors
--> <barry.collman@air-britain.co.uk>
Hello All,
Does anybody know the STC No. that allows the removal of the main gear aft
wheel well doors on Turbo Commanders?
My database reflects that 690B s/n 11522 was used as N691WM for obtaining
the STC in February 1992 and the STC subsequently issued was No. SA8214SW.
However, a suitable search of the FAA's website for STC's fails to find
this.
Also, does anybody know the weight saving that results?
Best Regards,
Barry
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