---------------------------------------------------------- Yak-List Digest Archive --- Total Messages Posted Thu 12/09/04: 7 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 12:56 AM - Y55 sights (Mark Jefferies) 2. 01:35 AM - prop covers (Mark Jefferies) 3. 04:26 AM - Re: Yak 55 Oil Cooler (Brian Lloyd) 4. 09:26 AM - Another T-34 lost. From AVflash (Doug Sapp) 5. 10:42 AM - Re: Yak 55 Oil Cooler (Doug Sapp) 6. 02:27 PM - SNF Follow-up (cpayne@joimail.com) 7. 03:59 PM - Re: Yak 55 Oil Cooler (Ron Spencer) ________________________________ Message 1 _____________________________________ Time: 12:56:42 AM PST US From: "Mark Jefferies" Subject: Yak-List: Y55 sights --> Yak-List message posted by: "Mark Jefferies" Scott, we have a 55 with the original cooler ducting, I could take pics for you next time its out the hangar. Let me know. Sights, we could make these also but you wont like what's happened to the USD vs the GBP, again a picture may help you. In the cooler months 50% covering of the cooler is the norm in the UK whatever the YAK type. Cheers, MJ --> Yak-List message posted by: "Scott Kirk" Does anyone have pictures showing what the doors/louvers at the front/rear of the oil cooler on a Yak 55 look like. Mine has none and its going to be getting cold soon in the Northeast and I am curious what was originally mounted. Duct tape for now but I would like to also know if what was originally in place is available anywhere. Also, any recommendations on aerobatic wingtip sights, mounting, sources, experiences etc. Thanks, Scott Best regards, fly safe-Mark Jefferies For YAK UK Ltd www.yakuk.com Lt Gransden Airfield Sandy, Beds SG19 3BP England. Tel +44 (0)1767 651156. Fax +44 (0)1767 651157 Mobile +44 (0)7785 538 317 Conditions and terms of business Aircraft for sale ________________________________ Message 2 _____________________________________ Time: 01:35:00 AM PST US From: "Mark Jefferies" Subject: Yak-List: prop covers --> Yak-List message posted by: "Mark Jefferies" This year we have had to B530 TA D35 propeller blades (on different props) written of due to water ingress. Water entered at the leading edge between the guard and the blade, this caused the wood to swell. If you have the opportunity to use the Hoffmann leading edge do, it will alleviate this type of problem. Now winter is coming I strongly recommend that propeller covers are used. If not water will get under the leading edges and then freeze lifting the surface, them more water can get in etc. Best regards, fly safe-Mark Jefferies For YAK UK Ltd www.yakuk.com Lt Gransden Airfield Sandy, Beds SG19 3BP England. Tel +44 (0)1767 651156. Fax +44 (0)1767 651157 Mobile +44 (0)7785 538 317 Conditions and terms of business Aircraft for sale ________________________________ Message 3 _____________________________________ Time: 04:26:51 AM PST US From: Brian Lloyd Subject: Re: Yak-List: Yak 55 Oil Cooler --> Yak-List message posted by: Brian Lloyd On Dec 8, 2004, at 3:50 PM, Bitterlich GS11 Mark G wrote: > Before anyone comments that I am taking a risk because of the loss of > the > cooler by-pass capability... yes, I am well aware of that. I watch oil > pressure like a hawk, change oil every 20 hours, help clean the engine > with > MMO, and will remove and have the cooler rebuilt at the slightest hint > of a > problem. The upside is that my oil temp is now COMPLETELY stable and > operates at the optimum temp. To me, this gain is worth the possible > down > side, and it the capability is worth at least mentioning to those that > might > not know about it. My only concern would be for the oil to cool too much and congeal in the cooler. At that point you would end up with a high oil temp problem even in the middle of winter. (Actually, the middle of winter would be when the problem would happen.) You still want to make sure you do your winterization to reduce cooling air flow through the oil cooler in winter. Multi-vis oil with a low temp pour-point below ambient temps will help too. Brian Lloyd 6501 Red Hook Plaza brianl@lloyd.com Suite 201 +1.340.998.9447 St. Thomas, VI 00802 I fly because it releases my mind from the tyranny of petty things . . . Antoine de Saint-Exupry ________________________________ Message 4 _____________________________________ Time: 09:26:18 AM PST US From: "Doug Sapp" Subject: Yak-List: Another T-34 lost. From AVflash --> Yak-List message posted by: "Doug Sapp" SECOND AIR ACES PLANE LOST A Texas air-combat simulation and upset-recovery training center has temporarily suspended operations after losing a second aircraft in just over a year to an apparent wing separation. The Texas Air Aces T-34 went down Tuesday about three miles from where a similar aircraft crashed on Nov. 19, 2003. In both crashes, the two people aboard the aircraft were killed. And in both tragedies, witnesses reported seeing one of the wings snap off before the aircraft spiraled into the ground near Lake Conroe. ...THIRD IN FIVE YEARS A similar crash in Georgia in 1999 prompted an Airworthiness Directive (AD) requiring thorough periodic inspections of the wing spars on T-34s. After the AD was issued, several alternative methods of compliance (AMOCs) were approved. After the 2003 crash, the FAA's preliminary report suggested that the aircraft wasn't in compliance with the AD, but FAA preliminary reports can be wrong. The FAA report on Tuesday's crash incorrectly identified the aircraft as a Beechjet (hopefully this has since been corrected) and also says only the pilot was on board. Texas Air Aces spokesman Dave Hollaway told the Houston Chronicle he didn't know if the aircraft was in compliance with the AD. Always Yakin, Doug Sapp -----Original Message----- From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com]On Behalf Of Joe Howse Subject: Yak-List: carb ice --> Yak-List message posted by: Joe Howse I have experienced carb ice on my M14 powered CJ6. On Canada's west coast at this time of year we quite often experience high humidity with temperatures hovering around freezing, I kept the CJ6 warming horns which seem to work well showing a good temp rise with carb heat selection. Joe ________________________________ Message 5 _____________________________________ Time: 10:42:50 AM PST US From: "Doug Sapp" Subject: RE: Yak-List: Yak 55 Oil Cooler --> Yak-List message posted by: "Doug Sapp" My 5 cents worth: If the temp by pass operates the way I think it does there is a possibility (on a cold day) for the valve to bypass the cooler for long enough time for the oil to congeal in the cooler, then the engine oil temp increases and the valve opens, forcing hot oil into the cooler and a wad of the congealed oil into the line, the pressure builds in the oil cooler and if the oil is thick enough, the oil cooler pops like a overripe tomato. Always Yakin, Doug Sapp -----Original Message----- From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com]On Behalf Of Brian Lloyd Subject: Re: Yak-List: Yak 55 Oil Cooler --> Yak-List message posted by: Brian Lloyd On Dec 8, 2004, at 3:50 PM, Bitterlich GS11 Mark G wrote: > Before anyone comments that I am taking a risk because of the loss of > the > cooler by-pass capability... yes, I am well aware of that. I watch oil > pressure like a hawk, change oil every 20 hours, help clean the engine > with > MMO, and will remove and have the cooler rebuilt at the slightest hint > of a > problem. The upside is that my oil temp is now COMPLETELY stable and > operates at the optimum temp. To me, this gain is worth the possible > down > side, and it the capability is worth at least mentioning to those that > might > not know about it. My only concern would be for the oil to cool too much and congeal in the cooler. At that point you would end up with a high oil temp problem even in the middle of winter. (Actually, the middle of winter would be when the problem would happen.) You still want to make sure you do your winterization to reduce cooling air flow through the oil cooler in winter. Multi-vis oil with a low temp pour-point below ambient temps will help too. Brian Lloyd 6501 Red Hook Plaza brianl@lloyd.com Suite 201 +1.340.998.9447 St. Thomas, VI 00802 I fly because it releases my mind from the tyranny of petty things . . . Antoine de Saint-Exupry ________________________________ Message 6 _____________________________________ Time: 02:27:06 PM PST US From: "cpayne@joimail.com" Subject: Yak-List: SNF Follow-up --> Yak-List message posted by: "cpayne@joimail.com" SNF Troops, Good news, *almost* everything will be the same for next years Sun n Fun except the EAA name will be missing. WOA will be there but maybe with slightly different ground pounders and airshow changes. See below message. I have LOTS of rooms on hold at Zephryhills (ZPH). I'll post tel numbers after the holidays. Expect to have a good time! Great facilities, only a 35 min drive from LAL, at good prices too. Can't beat that! Craig Payne December, 2004 Dear Warbird Enthusiast, As many old timers will remember, Sun N Fun began as a small event, under the banner of EAA. As Sun N Fun has grown, they have become more self sufficient and independent. As of this year, they will assume full responsibility for all aircraft flight and ground operations including those related to Warbirds. We will be going back to Sun N Fun as EAA Warbirds of America and we will be organizing the activities that we have always done there. (social, hotel arrangements, judging, awards banquet, etc.) The activities we will no longer be controlling will be ground operations (flight line) and the airshow for which Sun N Fun will be responsible. I would urge all of the flight line and airshow volunteers to become Sun N Fun volunteers. Everything we always did in relation to aircraft operations will now be under the Sun N Fun banner instead of the EAA banner at Lakeland. This will not have any effect on anything we do at Oshkosh or any other EAA Warbirds of America event anywhere else. As an organization, EAA Warbirds of America will give our full support to the Sun N Fun event and we are planning to have a great time. All of the support that warbirds received from Sun N Fun will continue as before. The Leeward fly out will take place on Friday this year and Jimmy Leeward plans to make it an expanded event with busses available to take interested members out to the nearby Drag Race Museum. There will be no warbird airshow on Friday so there will not be any pressure to try to get back early to fly the show. There will be an aerobatic box available and time can be put aside for formation flying as well. We will have our awards banquet on Saturday night, April 16, at Kermit Weeks Fantasy of Flight Museum in Polk City. From myself, the Warbird board of directors, and Bill Fischer, our Executive Director, have a great end of the year holiday and keep em flying. Sincerely, Michael Schloss, President EAA Warbirds of America 3000 Poberezny Road Oshkosh, WI 54903-3086 ________________________________ Message 7 _____________________________________ Time: 03:59:14 PM PST US From: "Ron Spencer" Subject: Re: Yak-List: Yak 55 Oil Cooler --> Yak-List message posted by: "Ron Spencer" I have a Yak 55M, and it does not have carb heat. Anybody know why...just curious, as the Yak 52 evidently does. -rs- ----- Original Message ----- From: "Doug Sapp" Subject: RE: Yak-List: Yak 55 Oil Cooler > --> Yak-List message posted by: "Doug Sapp" > > My 5 cents worth: > If the temp by pass operates the way I think it does there is a > possibility > (on a cold day) for the valve to bypass the cooler for long enough time > for > the oil to congeal in the cooler, then the engine oil temp increases and > the > valve opens, forcing hot oil into the cooler and a wad of the congealed > oil > into the line, the pressure builds in the oil cooler and if the oil is > thick > enough, the oil cooler pops like a overripe tomato. > > > Always Yakin, > Doug Sapp > > -----Original Message----- > From: owner-yak-list-server@matronics.com > [mailto:owner-yak-list-server@matronics.com]On Behalf Of Brian Lloyd > To: yak-list@matronics.com > Subject: Re: Yak-List: Yak 55 Oil Cooler > > > --> Yak-List message posted by: Brian Lloyd > > On Dec 8, 2004, at 3:50 PM, Bitterlich GS11 Mark G wrote: > >> Before anyone comments that I am taking a risk because of the loss of >> the >> cooler by-pass capability... yes, I am well aware of that. I watch oil >> pressure like a hawk, change oil every 20 hours, help clean the engine >> with >> MMO, and will remove and have the cooler rebuilt at the slightest hint >> of a >> problem. The upside is that my oil temp is now COMPLETELY stable and >> operates at the optimum temp. To me, this gain is worth the possible >> down >> side, and it the capability is worth at least mentioning to those that >> might >> not know about it. > > My only concern would be for the oil to cool too much and congeal in > the cooler. At that point you would end up with a high oil temp > problem even in the middle of winter. (Actually, the middle of winter > would be when the problem would happen.) You still want to make sure > you do your winterization to reduce cooling air flow through the oil > cooler in winter. Multi-vis oil with a low temp pour-point below > ambient temps will help too. > > Brian Lloyd 6501 Red Hook Plaza > brianl@lloyd.com Suite 201 > +1.340.998.9447 St. Thomas, VI 00802 > > I fly because it releases my mind from the tyranny of petty things . . . > Antoine de Saint-Exupry > > >