---------------------------------------------------------- Europa-List Digest Archive --- Total Messages Posted Sat 03/16/19: 4 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 04:33 AM - Fitting already built and flown glider wings to a new fuselage (Michael Grass) 2. 05:04 AM - Re: FWF fuel line fittings (Michael Grass) 3. 07:25 AM - Europa flying vid goldmine! (Pete) 4. 09:48 AM - Re: FWF fuel line fittings (Fred Klein) ________________________________ Message 1 _____________________________________ Time: 04:33:46 AM PST US From: Michael Grass Subject: Europa-List: Fitting already built and flown glider wings to a new fuselage Hello all, I would like to get some input from the group what the best method would be to fit already flown glider wings to a XS Tri gear fuselage. The fuselage has not yet the wing lift sockets or wing tie bar installed. Also the short wings are not closed. Normally, as I understand, the process would be to fit first the short wings to the fuselage and then match the glider wings. However, since the glider wings are completely done and already flown on another fuselage, it makes sense to me to reverse the procedure and fit the glider wings first and then match the short wings. My real question now is: How to replace the aluminum inserts for the lift pins on the short (or glider) wings. Does anybody know the type of aluminum is used and what the procedure would be? I believe, since the short wings are still open and its fiberglass , it would be easier to perform this job on the short wings instead the glider wings. Any thoughts? Thanks A266 Tri-Gear Michael Grass Sent from my iPad ________________________________ Message 2 _____________________________________ Time: 05:04:43 AM PST US From: Michael Grass Subject: Re: Europa-List: FWF fuel line fittings Hello Fred, You might want to have a look at the tightening specifications from the manu facturer of those fittings. It is interesting that they advise against torqu e and use number of flats instead. See pages 21 and 22 of https://www.parker .com/literature/Tube%20Fittings%20Division/Assembly_Installation.pdf Be safe A266 Michael Grass Sent from my iPad > On Mar 15, 2019, at 3:10 PM, Fred Klein wrote: > > I=99m reminded of the value of this list after contacting Ron Pagori s who had not posted for a long timeand I want to thank him for bri nging to my attention the subject of the use of aluminum fuel line fittings i n the engine compartment. > > Further research on the subject generated this response from Bud which he w illingly shares with our list: > >> Fred, >> I do not have problems with aluminum AN fittings. I do have problems wit h FWF techniques: >> >> AN fittings or even steel flare fittings need some sort of fastening to p revent loosening, which is common. I see some of the fittings you use have a safety wire hole. Use it. They do loosen, especially on fuel injection li nes. Hence the automotive and marine industry is going to special fittings. Oil fittings get safety wiring also. >> >> I also have problems with any hard line going to an engine, from a firewa ll. That is a broken fitting waiting to happen. The engine to fuselage fit ting should always be a flexible line of course. If the line is steel brade d or firm rubber, its flare fitting will tend to loosen with age without som e sort of fastener fixing them such as safety wire or crimp anti spin connec tor. Reason, over time the shake of the engine and the firm rubber or brade d line will shake until the flare fitting begins to loosen. We had this pro blem on jet engines. Safety wire flare fittings in some way. If the flare f itting has no safety wire hole, I use a Breeze clamp bent to fit on a fittin g (like on the oil tank fittings on the Rotax) rather than drilling the nut e dge. Once I have the Breeze clamp fitted, I safety wire the Breeze clamp sc rew so it won=99t loosen, then safety wire the clamp to a fixed point t o assure the fitting stays tight. >> >> That said, I tend to use push on or barb fittings screwed into an NPT fit ting for oil and fuel with specified clamps so the fitting won=99t loo sen. However, Aluminum NPT fittings can crack if not supported properly, ma ybe that is why your inspector prefers brass, which bends, or steel which is much stronger. He may have been concerned about the 90 degree fitting comi ng off the fuel line manifold for bending. I can=99t say. What I can see in the photo looks like a safe fitting if it is suitable for the fuel o r oil temp and pressure requirements of the engine manufactuer. >> >> Best Regards, >> Bud Yerly > > > > > While I will continue with my aluminum fittings, I will most certainly ens ure that they are properly safety-wired! Thanks Ron & Bud! ________________________________ Message 3 _____________________________________ Time: 07:25:12 AM PST US Subject: Europa-List: Europa flying vid goldmine! From: Pete For those struggling builders striving to get some europa time in their own b irds :-) Pete C's channel is chock full! https://www.youtube.com/user/thermalbug https://youtu.be/0MJo5lPQhK4 I wonder who the builder was? Cheers and blue skies, Pete ________________________________ Message 4 _____________________________________ Time: 09:48:17 AM PST US From: Fred Klein Subject: Re: Europa-List: FWF fuel line fittings Michaelthanks for the linkit does, as far as I can tell, address only issues relating to fittings for rigid fuel linessomething which I avoidedF. > On Mar 16, 2019, at 5:03 AM, Michael Grass > wrote: > > You might want to have a look at the tightening specifications from the manufacturer of those fittings. It is interesting that they advise against torque and use number of flats instead. See pages 21 and 22 of https://www.parker.com/literature/Tube%20Fittings%20Division/Assembly_Inst allation.pdf > > Be safe > > A266 > Michael Grass ------------------------------------------------------------------------------------- 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.