---------------------------------------------------------- Europa-List Digest Archive --- Total Messages Posted Thu 01/17/08: 2 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 12:26 PM - tailcone access panels (Fred Klein) 2. 03:05 PM - Re: tailcone access panels (ALAN YERLY) ________________________________ Message 1 _____________________________________ Time: 12:26:33 PM PST US Subject: Europa-List: tailcone access panels From: Fred Klein All. I note the plans calling for two 4" dia. access panels and one 2.5" dia. viewing panel on the starboard side of the fin and tailcone. I can't help but wonder about the adequacy of these and I seem to recall some discussion on this. How about increasing that viewing panel to 4" in order to be able to replace the trim servo? Does anyone wish they had added other panels due to maintenance, part replacement issues? Assuming that the 4" size is a limitation due to structural considerations, has anyone taken a leap of faith and made the holes larger and added say 2 additional layers of bid to the flange thickness? Thanks in advance for any thoughts or suggestions... Fred A194 -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. ________________________________ Message 2 _____________________________________ Time: 03:05:45 PM PST US From: "ALAN YERLY" Subject: Re: Europa-List: tailcone access panels Fred, For those not blessed with 4 foot long arms that are 2 inches in diameter, I use the following: I have a 4 inch hole (3 with flange) for the viewing hole to get to the trim servo screws. and 6 inch (5.5 with flange, except where nutplates are) for my arm to reach in and do the tail plane work. I have added others for tail wheel aircraft and if you are in doubt about strength, glass in a 1/2 inch rib and longeron to frame your 4 ply lay-up to stiffen the fuselage around a 6 inch hole. A good rule of thumb is position the holes so you do not cut into the redux joints, and if you need three holes put one on the other side. Bud Yerly Custom Flight Creations ----- Original Message ----- From: Fred Klein To: europa-list@matronics.com Sent: Thursday, January 17, 2008 3:22 PM Subject: Europa-List: tailcone access panels > All. I note the plans calling for two 4" dia. access panels and one 2.5" dia. viewing panel on the starboard side of the fin and tailcone. I can't help but wonder about the adequacy of these and I seem to recall some discussion on this. How about increasing that viewing panel to 4" in order to be able to replace the trim servo? Does anyone wish they had added other panels due to maintenance, part replacement issues? Assuming that the 4" size is a limitation due to structural considerations, has anyone taken a leap of faith and made the holes larger and added say 2 additional layers of bid to the flange thickness? Thanks in advance for any thoughts or suggestions... Fred A194 -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. http://www.matronics.com/Navigator?Europa-List http://www.matronics.com/contribution ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message europa-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Europa-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/europa-list Browse Digests http://www.matronics.com/digest/europa-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.