---------------------------------------------------------- Yak-List Digest Archive --- Total Messages Posted Tue 03/02/04: 6 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 12:20 AM - Official Usage Guideline [Please Read] [Monthly Posting] (Matt Dralle) 2. 03:38 AM - Re: Generator failure (Gus Fraser) 3. 08:45 AM - Yak-18T (Richard Goode) 4. 10:29 AM - All Red Star III (Barry Hancock) 5. 02:24 PM - Re: LED replacments for LDG LIGHTS (Brian Lloyd) 6. 05:09 PM - Re: Generator failure (Gus Fraser) ________________________________ Message 1 _____________________________________ Time: 12:20:10 AM PST US From: Matt Dralle Subject: Yak-List: Official Usage Guideline [Please Read] [Monthly Posting] DNA: do not archive --> Yak-List message posted by: Matt Dralle Dear Lister, Please read over the Yak-List Usage Guidelines below. The complete Yak-List FAQ including these Usage Guidelines can be found at the following URL: http://www.matronics.com/FAQs/Yak-List.FAQ.html Thank you, Matt Dralle Matronics Email List Administrator ****************************************************************************** Yak-List Usage Guidelines ****************************************************************************** The following details the official Usage Guidelines for the Yak-List. You are encouraged to read it carefully, and to abide by the rules therein. Failure to use the Yak-List in the manner described below may result in the removal of the subscribers from the List. Yak-List Policy Statement The purpose of the Yak-List is to provide a forum of discussion for things related to this particular discussion group. The List's goals are to serve as an information resource to its members; to deliver high-quality content; to provide moral support; to foster camaraderie among its members; and to support safe operation. Reaching these goals requires the participation and cooperation of each and every member of the List. To this end, the following guidelines have been established: - Please keep all posts related to the List at some level. Do not submit posts concerning computer viruses, urban legends, random humor, long lost buddies' phone numbers, etc. etc. - THINK carefully before you write. Ask yourself if your post will be relevant to everyone. If you have to wonder about that, DON'T send it. - Remember that your post will be included for posterity in an archive that is growing in size at an extraordinary rate. Try to be concise and terse in your posts. Avoid overly wordy and lengthy posts and responses. - Keep your signature brief. Please include your name, email address, aircraft type/tail number, and geographic location. A short line about where you are in the building process is also nice. Avoid bulky signatures with character graphics; they consume unnecessary space in the archive. - DON'T post requests to the List for information when that info is easily obtainable from other widely available sources. Consult the web page or FAQ first. - If you want to respond to a post, DO keep the "Subject:" line of your response the same as that of the original post. This makes it easy to find threads in the archive. - When responding, NEVER quote the *entire* original post in your response. DO use lines from the original post to help "tune in" the reader to the topic at hand, but be selective. The impact that quoting the entire original post has on the size of the archive can not be overstated! - When the poster asks you to respond to him/her personally, DO NOT then go ahead and reply to the List. Be aware that clicking the "reply" button on your mail package does not necessarily send your response to the original poster. You might have to actively address your response with the original poster's email address. - DO NOT use the List to respond to a post unless you have something to add that is relevant and has a broad appeal. "Way to go!", "I agree", and "Congratulations" are all responses that are better sent to the original poster directly, rather than to the List at large. - When responding to others' posts, avoid the feeling that you need to comment on every last point in their posts, unless you can truly contribute something valuable. - Feel free to disagree with other viewpoints, BUT keep your tone polite and respectful. Don't make snide comments, personally attack other listers, or take the moral high ground on an obviously controversial issue. This will only cause a pointless debate that will hurt feelings, waste bandwidth and resolve nothing. ------- [This is an automated posting.] ________________________________ Message 2 _____________________________________ Time: 03:38:17 AM PST US From: "Gus Fraser" Subject: RE: Yak-List: Generator failure --> Yak-List message posted by: "Gus Fraser" Sorry Walt, Yak 52 Gus -----Original Message----- From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com]On Behalf Of Walt Lannon Subject: Re: Yak-List: Generator failure --> Yak-List message posted by: "Walt Lannon" Good idea to specify the aircraft type with technical messages, but easy to forget. Thanks Walt ----- Original Message ----- From: "Jorgen Nielsen" Subject: RE: Yak-List: Generator failure > --> Yak-List message posted by: "Jorgen Nielsen" > > The fusebox. It is secured against the firewall by 4 machine screws, if > I remember correctly with a 5mm thread. > > I have a spare one, it is quite heavy. > > Jorgen > > > -----Original Message----- > From: owner-yak-list-server@matronics.com > [mailto:owner-yak-list-server@matronics.com] On Behalf Of Ernie > To: yak-list@matronics.com > Subject: Re: Yak-List: Generator failure > > > --> Yak-List message posted by: "Ernie" > > What exactly is coming loose???? > > Ernie > ----- Original Message ----- > From: "Jorgen Nielsen" > To: > Subject: RE: Yak-List: Generator failure > > > > --> Yak-List message posted by: "Jorgen Nielsen" > > > > > To all Yak owners: > > > > This is something for everyone to check. Mine also came loose, but > > without consequences. It seems it is a common failure mode, with the > > screws backing out. After time, esp. during aeros, the wires will rub > > > through and short out. When flying with Gennady Elfimov recently, he > > checked my plane out quite thoroughly (as he does), and he picked up > > the problem before flight (just after annual) by noticing the screws > > were backed out, by looking at the top 2 that protrude through the > > firewall. Only one screw was holding on the bottom, and only just. It > > > was surprising that the whole fuse box had not pulled off and shorted > > out. > > > > They are a real bitch to put back in. Three things make the job > > easier. > > > > 1. Loud and rude swearing. > > 2. Previous extensive gynaecological experience. > > 3. Replacing the missing screws with Allen screws, that are held > > securely by the driver, whilst head down, upside down in the cockpit, > > trying to insert the screw into the thread. If you use the standard > > screws you will have to insert them by hand, which is not easy. I > > also used ones that protruded by about 6/7 mm, allowing a lock-nut on > > the firewall side. > > > > Jorgen > > > > > > -----Original Message----- > > From: owner-yak-list-server@matronics.com > > [mailto:owner-yak-list-server@matronics.com] On Behalf Of Gus Fraser > > To: yak-list@matronics.com > > Subject: Yak-List: Generator failure > > > > > > --> Yak-List message posted by: "Gus Fraser" > > > > There I was, at the East coast session this weekend, performing a > > lovely hammerhead when, just at the top, a very smelly puff of blue > > smoke emerged from the instrument panel. Throttle back, fall out and > > recover while scanning the generator failure light illuminated. Headed > > > back and landed wiped out the fuse box access panel, Imagine my > > surprise when I found the fuse board box screws had come loose at the > > top so the whole panel was pivoted on the lower screws so that in the > > hammerhead it must have touched something. So, I opened the box > > expecting to find a blown fuse, did I find one, did I f &k. What I > > found was a wire that thought it was a fuse. The + wire from the > > generator to the regulator had TOTALLY fried itself. I left the plane > > there as Morty, thanks Morty, said he would replace the wire this > > week. After looking at the circuit diagram the wire goes straight to a > > > fuse but does include a capacitor to earth on the live side of the > > fuse. I suspect, but Morty you will have to check, that the capacitor > > has short circuited and as the wire had no protection it fried. This > > is one of the very few design faults on this aircraft. I suspect that > > the capacitor should be on the downstream side of the fuse. > > > > Has anyone else seen this failure ? > > > > Folks the next time you have the side panel off check the security of > > the bolts that secure the power panel. They are not wired in and as > > there is potentially 170 amps in there you don't want to start welding > > > at 6G. > > > > hope this helps > > > > Gus > > > > > > == > > direct advertising on the Matronics Forums. > > == > > == > > == > > > > > > > == > direct advertising on the Matronics Forums. > == > == > == > > ________________________________ Message 3 _____________________________________ Time: 08:45:49 AM PST US From: "Richard Goode" Subject: Yak-List: Yak-18T --> Yak-List message posted by: "Richard Goode" Dear Scott Yak-18T I saw your request to the Australian magazine about the Yak-18T. I write simply because we are probably the 18T specialists, and have a number of magazine articles if you are looking for general ones about the 18T, or was there something very specific about that Australian one? Anyway, I look forward to hearing from you. Best regards Richard Richard Goode Aerobatics Newport House Almeley Herefordshire HR3 6LL United Kingdom Tel: +44 (0) 1544 322200 Fax: +44 (0) 1544 322208 www.russianaeros.com dangerous content by the http://www.anti84787.com MailScanner, and is believed to be clean. ________________________________ Message 4 _____________________________________ Time: 10:29:02 AM PST US From: Barry Hancock Subject: Yak-List: All Red Star III --> Yak-List message posted by: Barry Hancock With the ACM event complete, our focus is now shifted to All Red Star III in just a few short months. This year's event will be May 12-16. We will include all the events of last year: -FAST formation ground school and training -ACM ground school and experience (we don't get hangar rash...we give it!) -Formation Challenge (will the Russian Roulette Squadron repeat?) -Bomb drop competition (can you hit the blow up doll from 300 feet at 120 knots?) -Safety and Maintenance seminars -Friday night Tri-Tip BBQ (this year on the ramp, complete with fly-by's and maybe even waivered airspace) -Crud Tournament -Saturday Night Awards banquet with cool trophies and prominent guest speaker And most importantly the largest gathering of cool Red Star airplanes and cool Red Star people in the world. New for this year: -Huge Ops Tent on the flight line! -Dedicated 3 camera video production team to produce DVD's of the event! -Dinners catered in every night...no need to drive! -Arial Treasure Hunt/Sky Rally -Pier judged "Best of Show" awards -Aerobatics box (if I can re-convince the County Board of Supervisors...again.) -Jet formation training We are currently updating the web site and will make on-line registration and event information available shortly... We had over 65 aircraft last year...this year we are shooting for 100. Make sure you get in on the fun! Barry Barry Hancock Director Of Operations All Red Star (949) 300-5510 www.allredstar.com "Communism - Lousy Politics, Great Airplanes!" ________________________________ Message 5 _____________________________________ Time: 02:24:59 PM PST US From: Brian Lloyd Subject: Re: Yak-List: LED replacments for LDG LIGHTS --> Yak-List message posted by: Brian Lloyd Ernie wrote: > --> Yak-List message posted by: "Ernie" > > Whiel you're there see if you can come up with any L-29 stuff contacts. The > NAF used them as light attack aircraft. Rog. -- Brian Lloyd 6501 Red Hook Plaza brian@lloyd.com Suite 201 http://www.lloyd.com St. Thomas, VI 00802 +1.340.998.9447 (voice) +1.360.838.9669 (fax) There is a time to laud one's country and a time to protest. A good citizen is prepared to do either as the need arises. ________________________________ Message 6 _____________________________________ Time: 05:09:12 PM PST US From: "Gus Fraser" Subject: RE: Yak-List: Generator failure --> Yak-List message posted by: "Gus Fraser" Sure enough it turned out to be the capacitor. It did not fail though it just shorted out when the fuse box was distorted by the phenomenal G of my performance. The result is the same though.... Moral of this story, check the security of your fuse box on the Yak 52. As a point of interest here is an open question which I learned from Cliff Coy. Q. Which electrical system device on a Yak 52 can only be tested when the engine is running ? I will post the correct answer later this week. Gus -----Original Message----- From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com]On Behalf Of Gus Fraser Subject: Yak-List: Generator failure --> Yak-List message posted by: "Gus Fraser" There I was, at the East coast session this weekend, performing a lovely hammerhead when, just at the top, a very smelly puff of blue smoke emerged from the instrument panel. Throttle back, fall out and recover while scanning the generator failure light illuminated. Headed back and landed wiped out the fuse box access panel, Imagine my surprise when I found the fuse board box screws had come loose at the top so the whole panel was pivoted on the lower screws so that in the hammerhead it must have touched something. So, I opened the box expecting to find a blown fuse, did I find one, did I f &k. What I found was a wire that thought it was a fuse. The + wire from the generator to the regulator had TOTALLY fried itself. I left the plane there as Morty, thanks Morty, said he would replace the wire this week. After looking at the circuit diagram the wire goes straight to a fuse but does include a capacitor to earth on the live side of the fuse. I suspect, but Morty you will have to check, that the capacitor has short circuited and as the wire had no protection it fried. This is one of the very few design faults on this aircraft. I suspect that the capacitor should be on the downstream side of the fuse. Has anyone else seen this failure ? Folks the next time you have the side panel off check the security of the bolts that secure the power panel. They are not wired in and as there is potentially 170 amps in there you don't want to start welding at 6G. hope this helps Gus