---------------------------------------------------------- Yak-List Digest Archive --- Total Messages Posted Sun 10/17/04: 12 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 06:46 AM - RPA Website (Terry Calloway) 2. 06:58 AM - Re: Yak 52 header tank (A. Dennis Savarese) 3. 08:40 AM - Yak 52 header tank (Frank Haertlein) 4. 09:26 AM - Re: Yak down (Gus Fraser) 5. 10:32 AM - Re: Yak 52 header tank (Doug Sapp) 6. 10:38 AM - Re: Yak 52 header tank (Walt Lannon) 7. 12:42 PM - Re: Yak 52 header tank (Doug Sapp) 8. 01:33 PM - Chinese in Haiti (cpayne1@joimail.com) 9. 05:46 PM - what an opportunity (N13472@aol.com) 10. 08:47 PM - Amazing Cloud Activity (Frank Haertlein) 11. 08:58 PM - Yak down (Frank Haertlein) 12. 10:29 PM - Yak 52 header tank (Frank Haertlein) ________________________________ Message 1 _____________________________________ Time: 06:46:30 AM PST US From: "Terry Calloway" Subject: Yak-List: RPA Website --> Yak-List message posted by: "Terry Calloway" I had no problem logging into the RPA site today. http://www.flyredstar.org/ tc ________________________________ Message 2 _____________________________________ Time: 06:58:35 AM PST US From: "A. Dennis Savarese" Subject: Re: Yak-List: Yak 52 header tank --> Yak-List message posted by: "A. Dennis Savarese" You can most likely have it welded and pressure tested for leaks. That may be easier than trying to find a replacement. Good luck with it. Dennis ----- Original Message ----- From: Subject: Yak-List: Yak 52 header tank > --> Yak-List message posted by: HodgeJW@aol.com > > Hey Guys, > > Anybody out there have a header tank for a Yak 52 they want to sell? Mine > leaks bad. > > Jay Hodge > > ________________________________ Message 3 _____________________________________ Time: 08:40:57 AM PST US From: "Frank Haertlein" Subject: Yak-List: Yak 52 header tank --> Yak-List message posted by: "Frank Haertlein" Jay; You may want to consider doing what I did to my main tanks to keep them from leaking. Get some fiberglass cloth and some Poly Poxi from spruce. Cut 2" or 3" strips of glass maybe 4 feet long and wrap your tank in such a way that the leak is covered with the cloth. Make sure the tank is clean down to the bare metal before doing it and sand it good to get a rough surface. Then cover the glass cloth with the epoxy. Both my main tanks have been going good for over a year without a leak since I did this. Frank N9110M YAK-52 L71 ________________________________ Message 4 _____________________________________ Time: 09:26:15 AM PST US From: "Gus Fraser" Subject: RE: Yak-List: Yak down --> Yak-List message posted by: "Gus Fraser" Sounds like cylinder 5 becoming a bullet. Glad to hear that you are both OK. I was told once by a Russian mechanic that the best way to test for a hydro locked cylinder was to measure the top stroke distance of all cylinders between the cylinder head and the edge of the spark plug hole, if one of the figures is totally different from the rest there is a problem. I have never tried this or know anyone that has but I submit it for consideration. Obviously a total strip down is the best way but this was his quick check. Dave Sutton had a very similar experience in a Yak 18 but the outcome was a lot more severe. In that case the cylinder sheared and entered the gear box on the next bang part of the cycle with predictable results, sounds like the same here. Gus -----Original Message----- From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com]On Behalf Of Alan Cockrell Subject: Yak-List: Yak down --> Yak-List message posted by: "Alan Cockrell" Red Star guys I want you all to know how proud I am of my friend and partner (owner-partner, not the other kind) George Myers. Our Yak-52 "Stack Doll" suffered an instant engine failure today enroute to the Rome Ga fly-in. George made a text book gear-up forced landing in a corn field near Scottsboro Alabama. The only damage was a small dent in the lower cowl and, of course, a wasted prop. There was no damage to the airframe anywhere else (the flaps were up). Tom Kahlert, George's wingman who was on his shake-down cruise in his own Yak, stayed with him and assisted. Tom said it was a textbook forced landing. Kudos to George. The failure was instantaneous. RPM went to zero and the prop shaft broke leaving the prop windmilling. We'll let you all know what happened when we find out. Alan ________________________________ Message 5 _____________________________________ Time: 10:32:09 AM PST US From: "Doug Sapp" Subject: RE: Yak-List: Yak 52 header tank --> Yak-List message posted by: "Doug Sapp" Jay, Over the years I have built many fuel tanks, from J3 to Super cub, Nanchang CJ6 aux fuel to go- carts. I have to admit that I have never seen a 52 header tank, but if you get your back up against the wall and cannot find a fix send it to me and I'll see what I can do with it. Note that I will be in Japan and China Nov 1st--Nov 25th Always Yakin, Doug Sapp -----Original Message----- From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com]On Behalf Of HodgeJW@aol.com Subject: Yak-List: Yak 52 header tank --> Yak-List message posted by: HodgeJW@aol.com Hey Guys, Anybody out there have a header tank for a Yak 52 they want to sell? Mine leaks bad. Jay Hodge ________________________________ Message 6 _____________________________________ Time: 10:38:39 AM PST US From: "Walt Lannon" Subject: Re: Yak-List: Yak 52 header tank --> Yak-List message posted by: "Walt Lannon" The procedure described below is an almost guaranteed way to destroy your fuel tank by introducing corrosion. By the time the leak shows up the corrosion will be severe and likely unrepairable. Why not find and correct the cause of the leak (something chafing on the tank wall??), correct that and repair the tank properly. It will be a very small area, probably just a pin hole. The tank must be purged, (vapour degrease, steam clean, etc.) and repair welded by a competent shop.. Sure this will cost a few bucks but will be a one time fix and your fuel tank will be as good as new. With the fibreglass fix mentioned you (or the poor shmuck who bought your aircraft) will be buying new tanks. Walt ----- Original Message ----- From: "Frank Haertlein" Subject: Yak-List: Yak 52 header tank > --> Yak-List message posted by: "Frank Haertlein" > > Jay; > You may want to consider doing what I did to my main tanks to keep them > from leaking. > > Get some fiberglass cloth and some Poly Poxi from spruce. Cut 2" or 3" > strips of glass maybe 4 feet long and wrap your tank in such a way that > the leak is covered with the cloth. Make sure the tank is clean down to > the bare metal before doing it and sand it good to get a rough surface. > Then cover the glass cloth with the epoxy. > > Both my main tanks have been going good for over a year without a leak > since I did this. > > Frank > N9110M > YAK-52 > L71 > > ________________________________ Message 7 _____________________________________ Time: 12:42:25 PM PST US From: "Doug Sapp" Subject: RE: Yak-List: Yak 52 header tank --> Yak-List message posted by: "Doug Sapp" Walt, The old Yak wizard of the not yet frozen north is correct, but like most old farts he stopped short of "splaining" the whole story--I think it has something to do with attention span, or the need to get moving to get in a few more holes of golf before it snows. :o) First, when you sand alu you remove any corrosion protection from the surface of the material, you also run the risk of embedding foreign material in the surface which may (or may not) cause corrosion in the future. Next, your covering all this raw aluminum with epoxy and god only knows what acids or salts the epoxy process uses. But the main problem is that once covered with epoxy you have lost the ability to monitor the condition of the tank (unless you can see inside with a light). It very easily could be corroding and sluffing away in small pieces into the fuel system, just waiting for the day when you pull a few extra G's to completely rupture and spill fuel all over, or plug your fuel filter. No, this (IMHO)is not a good long term fix, as a "get me home or ferry to fix" it's ok, but I would suggest that a proper weld type repair and correct installation is the right fix for the problem. Your mileage may vary. Always Yakin, Doug Sapp -----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: Yak 52 header tank --> Yak-List message posted by: "Walt Lannon" The procedure described below is an almost guaranteed way to destroy your fuel tank by introducing corrosion. By the time the leak shows up the corrosion will be severe and likely unrepairable. Why not find and correct the cause of the leak (something chafing on the tank wall??), correct that and repair the tank properly. It will be a very small area, probably just a pin hole. The tank must be purged, (vapour degrease, steam clean, etc.) and repair welded by a competent shop.. Sure this will cost a few bucks but will be a one time fix and your fuel tank will be as good as new. With the fibreglass fix mentioned you (or the poor shmuck who bought your aircraft) will be buying new tanks. Walt ----- Original Message ----- From: "Frank Haertlein" Subject: Yak-List: Yak 52 header tank > --> Yak-List message posted by: "Frank Haertlein" > > Jay; > You may want to consider doing what I did to my main tanks to keep them > from leaking. > > Get some fiberglass cloth and some Poly Poxi from spruce. Cut 2" or 3" > strips of glass maybe 4 feet long and wrap your tank in such a way that > the leak is covered with the cloth. Make sure the tank is clean down to > the bare metal before doing it and sand it good to get a rough surface. > Then cover the glass cloth with the epoxy. > > Both my main tanks have been going good for over a year without a leak > since I did this. > > Frank > N9110M > YAK-52 > L71 > > ________________________________ Message 8 _____________________________________ Time: 01:33:08 PM PST US From: "cpayne1@joimail.com" Subject: Yak-List: Chinese in Haiti --> Yak-List message posted by: "cpayne1@joimail.com" Check this out: >Chinese Police Deployed To Haiti >12:59 pm PST, 17 October 2004 > >Ninety-five Chinese riot police left Beijing for Haiti, the first Chinese >troops to be deployed to the Western Hemisphere. > >The force spent three months training and passed exams administered by the >United Nations. > >They will join a multinational force on the island, where violence has >escalated in the past few days. > >Its capital Port-au-Prince is beset by fighting between ex-soldiers who >helped topple President Jean-Bertrand Aristide and supporters of the exiled >leader who fled in February. No doubt they will be backed up by PLAAF CJ-6B's equipted with weapons especially designed for tin huts and old Chevys. So, how do you make Jerk Chicken in a Wok? Craig Payne ________________________________ Message 9 _____________________________________ Time: 05:46:09 PM PST US From: N13472@aol.com Subject: Yak-List: what an opportunity --> Yak-List message posted by: N13472@aol.com --> Yak-List message posted by: "cpayne1@joimail.com" Check this out: >Chinese Police Deployed To Haiti >12:59 PST, 17 October 2004 >Ninety-five Chinese riot police left Beijing for Haiti, the first Chinese >troops to be deployed to the Western Hemisphere. >The force spent three months training and passed exams administered by the >United Nations. >They will join a multinational force on the island, where violence has >escalated in the past few days. >Its capital Port-au-Prince is beset by fighting between ex-soldiers who >helped topple President Jean-Bertrand Aristide and supporters of the exiled >leader who fled in February.=A0=A0 No doubt they will be backed up by PLAAF CJ-6B's equipted with weapons especially designed for tin huts and old Chevys. So, how do you make Jerk Chicken in a Wok? Craig Payne MAN WHAT AN OPPORTUNITY! These UN sanctioned police will surly need AIR Support, Reckon, Flak suppression, CAP. etc. What better plane to use than a CJ-6 they know what it looks like i.e. no Friendly fire incidents. All of you Florida CJ drivers should be offering your services to the cause. Tom Elliott CJ-6 N63727 Sandy Valley NV 3L2 ________________________________ Message 10 ____________________________________ Time: 08:47:23 PM PST US From: "Frank Haertlein" Subject: Yak-List: Amazing Cloud Activity --> Yak-List message posted by: "Frank Haertlein" Yaksters; A couple, three weeks ago I walked out my door to get something out of my truck when I witnessed what can only be described as an amazing series of cloud formations. I live on the eastern edge of the Sierra Mountains and on this particular day the sky was full of a spectacular show of lenticular cloud activity. It seemed everywhere I looked there were multiple lenticular clouds, Sometimes they were stacked one on top of the other in multiple formations. The entire western sky was filled with them giving you a view of the invisible air seldom seen. I ran into the house and got my camera so I could pass this on to my fellow aviators. The sight really can't be described and the pictures really don't do justice to seeing this first hand. None-the-less, I thought I would pass it on. It really was an amazing sight. Maybe you can get some idea of what it was like with these pictures. Here's the link http://home.earthlink.net/~yak52driver/lent.html Frank YAK-52 N9110M L71 PS Tim Gagnon said, and I quote "We should also have prohibited the immigration of those nasty Germans, French, English, Poles, Italians, Spaniards, Russians or whoever else came over on those boats....wait....who would live here??" Tim, I never mentioned Germans, Jews, Russians, Spaniards, French, English, Poles or any other nationality or race....you pinhead. I was writing about a violent religion and it's adherents known as muslims. And "YES" I certainly do advocate discrimination against what has been demonstrated and what is without a doubt a violent religion (cult, really). The vast majority of the Middle East cheered at the pictures of the twin towers coming down and you want to tell me not to discriminate against them? Get lost, buddy! ________________________________ Message 11 ____________________________________ Time: 08:58:12 PM PST US From: "Frank Haertlein" Subject: Yak-List: Yak down --> Yak-List message posted by: "Frank Haertlein" Gus You mentioned checking for a hydraulic lock by measuring the pistons at top dead center. I did that exact same thing with my engine. I used a depth gauge in referenced to the spark plug hole. As I remember, all measurements were within .010 or thereabouts. After the measurements I was satisfied there was no problem with bent parts in my engine. Frank N9110M YAK-52 L71 ________________________________ Message 12 ____________________________________ Time: 10:29:06 PM PST US From: "Frank Haertlein" Subject: Yak-List: Yak 52 header tank --> Yak-List message posted by: "Frank Haertlein" Doug, Walt I've removed pieces of aluminum re-enforcement that have been embedded in epoxy laminates for more than 20 years and seen no corrosion. On my main tanks, I "fixed" cracks that developed around the outside circumference of the "FACTORY" weld. Obviously, the original welds didn't hold up against the vibration due to the heat stress of the aluminum around the weld. Could this factory weld situation cause a complete rupture when pulling a few extra G's and spill fuel all over? Well, of course it could. Nothing lasts forever.... even rubber bladder tanks like we have in some Beech aircraft. Interesting that airframes have a finite life, engines have to be rebuilt on occasion, avionics have to be repaired every so often, tires have to be replaced, brakes wear out, bearings need to be replaced, etc. The glass repair I mentioned went completely around the tanks and over the cracks/leaks so that it acted not only as a stop leak but as a minor structural element in backing up the internal tank rib. My bet is it's going to outlast me and my lifetime. I guarantee you will go thru 10 engines before I have trouble with my main tanks again. Some of the best protection for aluminum I know of consists of two part epoxy primers. Isn't the original Russian zinc chromate primer on our aircraft a two part epoxy? Isn't it of a similar chemical composition to the epoxies used for building composite aircraft? Frank N9110M YAK-52 L71