---------------------------------------------------------- Yak-List Digest Archive --- Total Messages Posted Thu 01/21/16: 1 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 06:38 AM - Re: Re: Yak-List Digest: 5 Msgs - 01/18/16 (George S. Coy) ________________________________ Message 1 _____________________________________ Time: 06:38:50 AM PST US From: "George S. Coy" Subject: RE: Yak-List: Re: Yak-List Digest: 5 Msgs - 01/18/16 The Yak55 aircraft was originally designed to be charged from a ground bottle for each start. They did incorporate a "Pop Off Valve". The air compressors on the engines were not connected to the air start system. Therefore they did not have the water trap, the cooling shroud etc. When they came to the U.S. people connected the compressor to the system in various ways. When we did it, we usually installed a Yak-52 type system including the long metal pipe with a loop for cooling, the water trap, a check valve and a pressure gage. At that time the original Russian parts were readily available so we used them. The 1996 aircraft were probably part of the 7 new aircraft that Tom Klassen and I imported without engines directly from the factory. As I remember Tom assembled 5 aircraft in St Louis and Rob Porter in North Carolina assembled 2 aircraft. We imported several used aircraft and a few new old stock aircraft through our facility in Vermont and modified them to be similar to Yak-52 air systems. We also modified the straight 55's we imported to use hydraulic brake systems instead of the original mechanical system. George Coy ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message yak-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Yak-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/yak-list Browse Digests http://www.matronics.com/digest/yak-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.