---------------------------------------------------------- Yak-List Digest Archive --- Total Messages Posted Fri 04/11/14: 9 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 03:38 AM - Re: YAK55m Wing attachment bolts. (Steve Geard) 2. 03:48 AM - YAK55m 500hr check requirments (Steve Geard) 3. 03:53 AM - YAK55m Fabric life (Steve Geard) 4. 04:00 AM - Re: Spinner V-530 (Steve Geard) 5. 04:52 AM - Re: YAK55m Fabric life (George S. Coy) 6. 04:56 AM - Re: engine failure over water (Steve Geard) 7. 05:44 AM - Re: Re: engine failure over water (Colin McGeachy) 8. 08:05 AM - Spar Modification! (Larry Pine) 9. 12:12 PM - Re: Main air valve (Robin Hou) ________________________________ Message 1 _____________________________________ Time: 03:38:15 AM PST US Subject: Yak-List: Re: YAK55m Wing attachment bolts. From: "Steve Geard" The holes check out round and 20mm. The bolt we measured was also round and 19.92mm. We're thinking as theyre both round that maybe thats how they come from the factory, Anyone got any bolts around 19.98 ish? What is the clearance required for a slide fit? Cheers Steve -------- SteveO Read this topic online here: http://forums.matronics.com/viewtopic.php?p=421903#421903 ________________________________ Message 2 _____________________________________ Time: 03:48:08 AM PST US Subject: Yak-List: YAK55m 500hr check requirments From: "Steve Geard" Hi all, Steve from NZ. Does anyone have info on what checks the factory do on Yak55's at the 500hr mark? Here in NZ I'm required to xray or eddie current check the wing attachments and bolts. I presently have the elevators and rudder off to rejuvenate the fabric so wonder if theres any checks done back there or in the engine bay? Cheers Steve -------- SteveO Read this topic online here: http://forums.matronics.com/viewtopic.php?p=421904#421904 ________________________________ Message 3 _____________________________________ Time: 03:53:31 AM PST US Subject: Yak-List: YAK55m Fabric life From: "Steve Geard" Hi Steve here again. Anyone know what fabric and how long it lasts on the tail feathers of a 1992 Yak55m. It wont be cotten built in 1992 will it ? Still on original paint which I think is dope. Been hangered all her life and outwardly looks pretty good and passes the maul test at 56 lbs. Cheers Steve. -------- SteveO Read this topic online here: http://forums.matronics.com/viewtopic.php?p=421905#421905 ________________________________ Message 4 _____________________________________ Time: 04:00:21 AM PST US Subject: Yak-List: Re: Spinner V-530 From: "Steve Geard" I have one off my Yak55m. approx 16-17' spun alloy I think, its a silver finish Both the spinner and backplate are in very good condition. I've fitted a Whirlwind composite scimitar prop and composite spinner. Steve from NZ :-) -------- SteveO Read this topic online here: http://forums.matronics.com/viewtopic.php?p=421906#421906 ________________________________ Message 5 _____________________________________ Time: 04:52:44 AM PST US From: "George S. Coy" Subject: RE: Yak-List: YAK55m Fabric life Yes cotton or rather linen. George -----Original Message----- From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Steve Geard Sent: Friday, April 11, 2014 6:53 AM Subject: Yak-List: YAK55m Fabric life Hi Steve here again. Anyone know what fabric and how long it lasts on the tail feathers of a 1992 Yak55m. It wont be cotten built in 1992 will it ? Still on original paint which I think is dope. Been hangered all her life and outwardly looks pretty good and passes the maul test at 56 lbs. Cheers Steve. -------- SteveO Read this topic online here: http://forums.matronics.com/viewtopic.php?p=421905#421905 ________________________________ Message 6 _____________________________________ Time: 04:56:16 AM PST US Subject: Yak-List: Re: engine failure over water From: "Steve Geard" What about landing inverted, then the plane will flip right side up when it digs in !!! :o :o :o :o :o :o OK, so bail it is then. -------- SteveO Read this topic online here: http://forums.matronics.com/viewtopic.php?p=421909#421909 ________________________________ Message 7 _____________________________________ Time: 05:44:26 AM PST US From: Colin McGeachy Subject: Re: Yak-List: Re: engine failure over water Your comments reminded me of Neil Williams Zlin crash. Just incredible flying. http://www.aerobatics.org.uk/repeats/zlin_wing_failure.htm Colin C-FTGZ On 11 April 2014 07:56, Steve Geard wrote: > > What about landing inverted, then the plane will flip right side up when > it digs in !!! :o :o :o :o :o :o OK, so bail it is then. > > -------- > SteveO > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=421909#421909 > > ________________________________ Message 8 _____________________________________ Time: 08:05:37 AM PST US From: Larry Pine Subject: Yak-List: Spar Modification! =0A=0A-I hate to bring this up after reading a number of posts on this su bject sometime ago.. but here I go! I have my tail off right now and decide d to install the tail spar doubler at this time.- After reading the past posts, I saw there was quit a bit of disagreement on the material and thick ness of the doubler.- No forward sometime, I will ask the question again, hoping to get some information now that many have accomplished this mod. - Question... Doubler thickness and material?=0AThanks in advance=0A- =0ALarry Pine ________________________________ Message 9 _____________________________________ Time: 12:12:03 PM PST US From: Robin Hou Subject: Re: Yak-List: Main air valve Hi Gill and Dee,=0A=0AThank you both.=C2-I called their L.A. office and t he price is only $88 with no min quantity requirement. This is cheaper than the Chinese valve.=0A=0AGill, can you provide more information on your eme rgency valve mod? What is the Swagelok part no. and which shuttle valve did you eliminate?=C2-=0A=0AThanks in advance.=0A=0ARobin=0A=0A=0A=0A_______ _________________________=0A From: Gill Gutierrez =0ATo : yak-list@matronics.com =0ASent: Thursday, April 10, 2014 3:41 PM=0ASubjec t: RE: Yak-List: Main air valve=0A =0A=0A=0AThis valve has 1/8=9D npt fittings which are the same as the stock Chinese valve, no adaptor is requ ired.=C2- I use a different valve for the emergency air which bleeds emer gency system and eliminates sticking shuttle valve issues.=0A=C2-=0AGill =0A=C2-=0AFrom:owner-yak-list-server@matronics.com [mailto:owner-yak-list -server@matronics.com] On Behalf Of Dee Conger=0ASent: Thursday, March 27, 2014 2:38 PM=0ATo: yak-list=0ASubject: Re: Yak-List: Main air valve=0A=C2 -=0AHi - don't have that handy, but I used 1/4" valves in all my Yaks - t he lines in the yak are 6mm, so easiest way to adapt is to buy swagelok 6mm to 1/4" union adapters, and then splice in a short run of 1/4" tubing. =C2 -I use these valves on the main and also emergency valves =C2-- WAY bet ter than the russian valves and never leak. =C2-=0A=C2-=0AOn Thu, Mar 2 7, 2014 at 9:50 AM, rmhou@yahoo.com wrote:=0AHi Dee, =0AC an you share the part number of the compatible Swagelok valve?=0AThanks,=0A Robin=0ASent from Yahoo Mail on Android =0A=C2-=0A=0A____________________ ____________=0A=0AFrom: Dee Conger ; =0ATo: yak-list < yak-list@matronics.com>; =0ASubject: Re: Yak-List: Main air valve =0ASent: Thu, Mar 27, 2014 4:24:54 AM =0A=C2-=0AWhy would you possibly want to ins tall those shitty russian valves? =C2-Do yourself a favor and retrofit to Swagelok (or similar) 1/4 turn valve - a very simple retrofit, but a huge improvement.=0A=C2-=0AOn Wed, Mar 26, 2014 at 9:02 PM, Dave Jester =0A=0AKregg: =C2-I'll take two if you have them to spare...conta ct me off list.=0A=0ASent from my iPad=0A=0A> On Mar 26, 2014, at 10:48 PM, Kregg Victory wrote:=0A>=0A> --> Yak-List messag e posted by: Kregg Victory How many do you need? =C2- I have a few.=0A> Kregg Victory=0A>=0A> Sent from my iPhone=0A>=0A>> On Mar 26, 2014, at 8:38 PM, Dave Jester wrote:=0A>>=0A>> Folk s: =C2-looking for a main air valve. =C2-Anyone have an idea where one can be found? =C2-I've tried Doug and Jill.=0A>>=0A>> Sent from my iPad =0A>> =0A>=0A>=0A>=0A>=0A>=0A=0A=0A========= ===0Arget="_blank">http://www.matronics.com/Navigator?Yak-List=0A= ===========0Ahttp://forums.matronics.com=0A==== ========0Ale, List Admin.=0A="_blank">http://www.matronics. com/contribution=0A============0A=0A=0A=0A=C2-=0Aht tp://www====================== =0A=C2-=0A=C2-=0Aet="_blank">http://www.matronics.com/Navigator?Yak-L ist=0Atp://forums.matronics.com=0A_blank">http://www.matronics.com/contribu tion=0A=C2-=0A=C2-=0A=C2-=0A=C2-=0Ahttp://www.matronics.com/Navigat or?Yak-List=0Ahttp://forums.matronics.com=0Ahttp://www.matronics.com/contri bution ------------------------------------------------------------------------------------- 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.