---------------------------------------------------------- Commander-List Digest Archive --- Total Messages Posted Sun 01/09/11: 5 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 11:24 AM - Removal of Main Gear Doors (Barry Collman) 2. 11:41 AM - Re: Removal of Main Gear Doors (Barry Collman) 3. 02:54 PM - Re: Removal of Main Gear Doors (Deneal Schilmeister (MacbookPro)) 4. 03:41 PM - Re: Removal of Main Gear Doors (Jack B. Mills) 5. 09:59 PM - Re: Removal of Main Gear Doors (Stan) ________________________________ Message 1 _____________________________________ Time: 11:24:46 AM PST US From: "Barry Collman" Subject: Commander-List: Removal of Main Gear Doors 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 ________________________________ Message 2 _____________________________________ Time: 11:41:21 AM PST US From: "Barry Collman" Subject: RE: Commander-List: Removal of Main Gear Doors Hello All, Just thought of another question here! For those Turbo Commanders that retain these doors, do they remain in the down position when the gear is down? I think not, as most photos taken before 1992 show them in the retracted, or up, position. Best Regards, Barry -----Original Message----- From: owner-commander-list-server@matronics.com [mailto:owner-commander-list-server@matronics.com] On Behalf Of Barry Collman Sent: 09 January 2011 19:20 Subject: Commander-List: Removal of Main Gear Doors --> 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 ________________________________ Message 3 _____________________________________ Time: 02:54:30 PM PST US Subject: Re: Commander-List: Removal of Main Gear Doors From: "Deneal Schilmeister (MacbookPro)" If I recall correctly, the close close after the gear is extended. One of the preflight items is to manually (with one's hands) to force open one set (I forget which side) to check the pressure gauge. -- Deneal Schilmeister On 1/9/11 1:37 PM, "Barry Collman" wrote: > For those Turbo Commanders that retain these doors, do they remain in the > down position when the gear is down? ________________________________ Message 4 _____________________________________ Time: 03:41:13 PM PST US From: "Jack B. Mills" Subject: Re: Commander-List: Removal of Main Gear Doors Barry, They close when the gear is down, however, a lot of the ones that I see around seem to sag a bit. Moe N680RR -------------------------------------------------- From: "Barry Collman" Sent: Sunday, January 09, 2011 11:37 AM Subject: RE: Commander-List: Removal of Main Gear Doors > > > Hello All, > > Just thought of another question here! > For those Turbo Commanders that retain these doors, do they remain in the > down position when the gear is down? > I think not, as most photos taken before 1992 show them in the retracted, > or > up, position. > > Best Regards, > Barry > > -----Original Message----- > From: owner-commander-list-server@matronics.com > [mailto:owner-commander-list-server@matronics.com] On Behalf Of Barry > Collman > Sent: 09 January 2011 19:20 > To: commander-list@matronics.com > Subject: Commander-List: Removal of Main Gear Doors > > --> > > 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 > > > ________________________________ Message 5 _____________________________________ Time: 09:59:56 PM PST US From: "Stan" 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 --> 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 ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message commander-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Commander-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/commander-list Browse Digests http://www.matronics.com/digest/commander-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.