---------------------------------------------------------- RV-List Digest Archive --- Total Messages Posted Sun 01/02/05: 22 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 12:03 AM - Official Usage Guideline [Please Read] [Monthly Posting] (Matt Dralle) 2. 06:02 AM - Re: FAB mounting plate cracks. Replacement? (Alex Peterson) 3. 07:18 AM - Re: FAB mounting plate cracks. Replacement? (Brian Denk) 4. 11:00 AM - Re: Tru Trak hardware (Jeff Dowling) 5. 12:56 PM - RV-8 Strakes (sturdy@att.net) 6. 02:28 PM - Re: Re: [VAF Mailing List] Oil Cooler Flange Failure (Scott Jackson) 7. 03:14 PM - Tru Track auto pilots (George Steube) 8. 03:46 PM - first new RV flight in 2005 (Phil Sisson, Litchfield Aerobatic Club) 9. 04:39 PM - Re: first new RV flight in 2005 (Ed Anderson) 10. 05:14 PM - Skytec Flyweight Starter question (Scott VanArtsdalen) 11. 05:23 PM - Louis, Missouri in 1888. He began (William Near) 12. 05:32 PM - A new way to screw up! (Richard Scott) 13. 05:45 PM - Re: Skytec Flyweight Starter question (linn walters) 14. 06:04 PM - Re: first new RV flight in 2005 (LarryRobertHelming) 15. 06:04 PM - Re: first new RV flight in 2005 (Keith Hedrick OD) 16. 06:18 PM - Re: Tru Track auto pilots (Dale Mitchell) 17. 06:39 PM - Re: first new RV flight in 2005 (Fiveonepw@aol.com) 18. 07:17 PM - Re: Re: [VAF Mailing List] Oil Cooler Flange Failure (Charlie Kuss) 19. 07:20 PM - Re: first new RV flight in 2005 (Phil Sisson, Litchfield Aerobatic Club) 20. 07:39 PM - Re: first new RV flight in 2005 (Phil Sisson, Litchfield Aerobatic Club) 21. 07:48 PM - Re: Re: [VAF Mailing List] Oil Cooler Flange Failure (Vanremog@aol.com) 22. 10:37 PM - Re: RV-8 Strakes (Mickey Coggins) ________________________________ Message 1 _____________________________________ Time: 12:03:40 AM PST US From: Matt Dralle Subject: RV-List: Official Usage Guideline [Please Read] [Monthly Posting] DNA: do not archive --> RV-List message posted by: Matt Dralle Dear Lister, Please read over the RV-List Usage Guidelines below. The complete RV-List FAQ including these Usage Guidelines can be found at the following URL: http://www.matronics.com/FAQs/RV-List.FAQ.html Thank you, Matt Dralle Matronics Email List Administrator ****************************************************************************** RVSouthEast-List Usage Guidelines ****************************************************************************** The following details the official Usage Guidelines for the RVSouthEast-List. You are encouraged to read it carefully, and to abide by the rules therein. Failure to use the RVSouthEast-List in the manner described below may result in the removal of the subscribers from the List. RVSouthEast-List Policy Statement The purpose of the RVSouthEast-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: 06:02:58 AM PST US From: "Alex Peterson" Subject: RE: RV-List: FAB mounting plate cracks. Replacement? --> RV-List message posted by: "Alex Peterson" > --> RV-List message posted by: "Brian Denk" > > Listers, > > I'm in the middle of my fifth annual on my RV8 and have found > two cracks in > the alu FAB box plate. It's cracking at the rear, through > the outer edge of > a carb mounting hole and the other is alongside the left > front mounting > hole. No signs of FAB box impact or chafing on the cowling > is evident. > Good ole Lycosaur shake must have taken it's toll. > > What do ya'll think about using a sheet of phenolic instead? > Would be an > easy piece to make with a rotozip and dremel sanding wheel. > Spruce sells it > in 1/8" sheets that I think would be just about the right > thickness. I > could also layup a sheet of carbon with West Systems and > machine it. It > would look cool but the phenolic is ready to use and mighty > tough. Any > downsides to this? > > Thanks, > > Brian Denk > RV8 N94BD > RV10 '51 Brian, this is very common. I suspect it is not vibration, but engine movement during g's/turbulence and startup/shutdown. That snout is a long way forward from the FAB's mount. I don't know phenolic's cracking tolerance at very low temperatures, one would need to understand all of that, since pieces sucked into the engine are a bad thing. Paul Petersen, are you listening? (he knows a bit about phenolics). I have the Airflow Performance setup, and the edges of the mount were very sharp, creating a classic stress riser on the plate in question. Time will tell if it helped to radius those edges. Alex Peterson RV6-A 561 hours Maple Grove, MN http://www.home.earthlink.net/~alexpeterson/ ________________________________ Message 3 _____________________________________ Time: 07:18:53 AM PST US From: "Brian Denk" Subject: RE: RV-List: FAB mounting plate cracks. Replacement? --> RV-List message posted by: "Brian Denk" > > > > Listers, > > > > I'm in the middle of my fifth annual on my RV8 and have found > > two cracks in > > the alu FAB box plate. It's cracking at the rear, through > > the outer edge of > > a carb mounting hole and the other is alongside the left > > front mounting > > hole. No signs of FAB box impact or chafing on the cowling > > is evident. > > Good ole Lycosaur shake must have taken it's toll. > > > > What do ya'll think about using a sheet of phenolic instead? > > Would be an > > easy piece to make with a rotozip and dremel sanding wheel. > > Spruce sells it > > in 1/8" sheets that I think would be just about the right > > thickness. I > > could also layup a sheet of carbon with West Systems and > > machine it. It > > would look cool but the phenolic is ready to use and mighty > > tough. Any > > downsides to this? > > > > Thanks, > > > > Brian Denk > > RV8 N94BD > > RV10 '51 > >Brian, this is very common. I suspect it is not vibration, but engine >movement during g's/turbulence and startup/shutdown. That snout is a long >way forward from the FAB's mount. I don't know phenolic's cracking >tolerance at very low temperatures, one would need to understand all of >that, since pieces sucked into the engine are a bad thing. Paul Petersen, >are you listening? (he knows a bit about phenolics). I have the Airflow >Performance setup, and the edges of the mount were very sharp, creating a >classic stress riser on the plate in question. Time will tell if it helped >to radius those edges. > >Alex Peterson >RV6-A 561 hours >Maple Grove, MN > >http://www.home.earthlink.net/~alexpeterson/ > Ah...good point. The cracks do seem coincidental with the edge of the carb body. The bottom of the carb is machined and has a rather sharp transition into the cast body of the carb bowl. I've used phenolic as a carb mount on a 4.1 cu. in. Husqvarna chainsaw engine to modify the mounting to suit an RC aircraft application. It worked beautifully and held up to even the horrendous shaking of a single cylinder engine of this size. Of course, it was also 3/4" thick! It was impervious to 5% nitro glow fuel as well as gas/oil mix. This just might work out. Brian Denk RV8 N94BD RV10 '51 ________________________________ Message 4 _____________________________________ Time: 11:00:35 AM PST US From: "Jeff Dowling" Subject: Re: RV-List: Tru Trak hardware --> RV-List message posted by: "Jeff Dowling" The company recommended using loctite which I did initially. I dont think its a good idea. I drilled out the tapped holes and put bolts and nuts in during my annual. You dont have to used drilled bolts. Shemp/Jeff Dowling RV-6A, N915JD 150 hours Chicago/Louisville ----- Original Message ----- From: "Bob Collins" Subject: RV-List: Tru Trak hardware > --> RV-List message posted by: "Bob Collins" > > I'm curious if anyone has a hardware callout for mounting the Tru Trak > servo > to the brackets. In perusing the archives it seems the best way to handle > this is reaming out the holes and using a bolt and nut. So I'm also > looking > for any site or info that explains the art of safety wiring. > > Thanks > Bob Collins > St. Paul, Minn. > > > ________________________________ Message 5 _____________________________________ Time: 12:56:37 PM PST US From: sturdy@att.net Subject: RV-List: RV-8 Strakes 0.50 MIME_BOUND_NEXTPART Spam tool pattern in MIME boundary 0.01 RCVD_DOUBLE_IP_LOOSE Received: by and from look like IP addresses --> RV-List message posted by: sturdy@att.net Mickey, That would be me. I did install strakes on my RV-8. I flew it first without them and documented my airspeeds and that I did indeed have significant 'tail shake' prior to the stall. It is caused by the dirty air in a near stall coming around the fuselage/landing gear just under the leading edge, and with no energy the wing does not streamline the air, so it hits the horzontal Stab and shakes it about an inch at the tip. I installed some Cessna 414 engine nacelle strakes (I bought at Robertson in Arlington WA) on the fuselage in front of and above the leading edge. Next flight there was NO tail shake and NO prestall buffet. In documenting changes after installation, I saw no top end penalty and a 5 knot reduction in stall speed. Worked for me. This mod is not for everyone in that the prestall buffet is gone. If one needs that buffet to let them know he are close to stall, he should not install them. Stu McCurdy RV-8, Flying RV-3, Flying ------------------------------------------------ Time: 05:37:38 AM PST US From: Mickey Coggins Subject: Re: RV-List: 200HP cowl louver mod & strake discussion II --> RV-List message posted by: Mickey Coggins > Also, there's a 4 or 5 page writeup (with pictures and drawings) by Van himself on the > RV8 tail shakes and the strake solution. They did say they were effective in cancelling out the prolonged prestall buffet the 8 has. But they didn't bother to measure any drag or speed penalty due to the strakes. They also didn't discuss slower stall speeds/better landings. They had tunnel vision on the tail shakes (must have had a LOT of alarmed phase 1 test flight RV8 flyers calling in concerned...) > Hi, I saw these on Stuart McCurdy's RV8 at SNF, but didn't have much of a chance to talk to him about them. I was under the impression that that this prestall buffet was not a big deal. I have not yet read the Van's article. Is this something a lot of people are complaining about? Thanks, Mickey Mickey, That would be me. I did install strakes on my RV-8. I flew it first without them and documented my airspeeds and that I did indeed have significant 'tail shake' prior to the stall. It is caused by the dirty air in a near stall coming around the fuselage/landing gear just under the leading edge, and with no energy the wing does not streamline the air, so it hits the horzontal Stab and shakes it about an inch at the tip. I installed some Cessna 414 engine nacelle strakes (I bought at Robertson in Arlington WA) on the fuselage in front of and above the leading edge. Next flight there was NO tail shake and NO prestall buffet. In documenting changes after installation, I saw no top end penalty and a 5 knot reduction in stall speed. Worked for me. This mod is not for everyone in that the prestall buffet is gone. If one needs that buffet to let them know he are close to stall, he should no t install them. Stu McCurdy RV-8, Flying RV-3, Flying ------------------------------------------------ Time: 05:37:38 AM PST US From: Mickey Coggins mick-matronics@rv8.ch Subject: Re: RV-List: 200HP cowl louver mod strake discussion II -- RV-List message posted by: Mickey Coggins mick-matronics@rv8.ch Also, there's a 4 or 5 page writeup (with pictures and drawings) by Van himself on the RV8 tail shakes and the strake solution. They did say they were effective in cancelling out the prolonged prestall buffet the 8 has. But they didn't bother to measure any drag or speed penalty due to the strakes. They also didn't discuss slower stall speeds/better landings. They had tunnel vision on the tail shakes (must have had a LOT of alarmed phase 1 test flight RV8 flyers calling in concerned...) Hi, I saw these on Stuart McCurdy's RV8 at SNF, but didn't have much of a chance to talk to him about them. I was under the impression that that this prestall buffet was not a big deal. I have not yet read the Van's article. Is this something a lot of people are complaining about? Thanks, Mickey ________________________________ Message 6 _____________________________________ Time: 02:28:22 PM PST US From: "Scott Jackson" , Subject: Re: RV-List: Re: [VAF Mailing List] Oil Cooler Flange Failure --> RV-List message posted by: "Scott Jackson" One thing that no one has addressed that may be part of the problem is the change in the space between the mounting holes on the cooler as a result of temperature changes. With an all-aluminum body, I wonder if the cooler is expanding more than the structure that it's attached to. For instance, the baffle sidewalls that fit around the valve covers are not one piece, they interweave where they meet between the two cylinder heads, I would think this is solely to accomodate the changing dimensions of the engine as the heads heat up. Scott in VancouveRV-6, 167 hours back in the air early November after 5-month repair! ----- Original Message ----- From: "Wayne Sweet" ; Subject: RV-List: Re: [VAF Mailing List] Oil Cooler Flange Failure > --> RV-List message posted by: "Wayne Sweet" > > Dan, > Looks like you may have vibration problems. Have you had the prop/engine > dynamically balance? If not that would be a good thing to do. Can't > believe normal stress (unless the mounting is out of alignment somehow) > did that. > Don't blame it on Van's design. Four bolts should be enough, UNLESS it is > under high vibration or mis-alignment stress. > Wayne > ----- Original Message ----- > From: Dan Checkoway > To: SoCAL-RVlist@yahoogroups.com ; vansairforce@yahoogroups.com ; > rv-list@matronics.com ; RV7and7A@yahoogroups.com > Sent: Thursday, December 30, 2004 9:17 PM > Subject: [VAF Mailing List] Oil Cooler Flange Failure > > > As you may recall, I had a few bad baffle cracks early on. I'm happy to > report that my latest baffle/brace design seems to be rock solid. > However...last night, when doing an oil change, I noticed that my oil > cooler > flanges all but self-destructed. The oil cooler flanges have become the > weak link in the chain. Photos here: > > http://www.rvproject.com/20041229.html (bottom of page) > > I blindly followed "the plans" (FWF DWG OP-27) when installing my oil > cooler, and while I don't normally criticize the amazing job Van's has > done, > this is one area where the plans are definitely leading "newbies" like me > astray. I take full responsibility for what happened, but you might want > to > check your installation if you followed the drawing blindly like I did. > > Here's the end result, including the modifications I made (that probably > MANY less ignorant people have already made) in order to make the > installation robust. > > http://www.rvproject.com/20041230.html > > Hope this helps! > )_( Dan > RV-7 N714D > http://www.rvproject.com > > > Online help on this group at: > http://help.yahoo.com/help/groups/ > > > ADVERTISEMENT > > > a.. To visit your group on the web, go to: > http://groups.yahoo.com/group/vansairforce/ > > b.. To unsubscribe from this group, send an email to: > vansairforce-unsubscribe@yahoogroups.com > > > I am using the free version of SPAMfighter for private users. > It has removed 658 spam emails to date. > Paying users do not have this message in their emails. > Try www.SPAMfighter.com for free now! > > > ________________________________ Message 7 _____________________________________ Time: 03:14:26 PM PST US From: "George Steube" Subject: RV-List: Tru Track auto pilots --> RV-List message posted by: "George Steube" I would like to know who found the best prices on Tru-Track autopilots and where. Also, who provided good service? Thanks. George ________________________________ Message 8 _____________________________________ Time: 03:46:45 PM PST US From: "Phil Sisson, Litchfield Aerobatic Club" "Merle V. Prusia" , "Lawrence, Jeffrey A" , Mark Phillips , Robert Wade , "Bob U." , Brent Smith Subject: RV-List: first new RV flight in 2005 --> RV-List message posted by: "Phil Sisson, Litchfield Aerobatic Club" do not archive Was I the first new RV to fly in 2005? serial number 20762 If not, speak up and I will gladly concede.... Here is a web site with the pix.. http://www.litchfieldil.com/members/airport/ Today, our wx here was crappy, just like yesterday. When I woke up this morning the awos was reporting 1/2 and 200 feet.... I went back to sleep........ Finally got up and took my usual Sunday mornig trip to a daughters house for breakfast....... Kept calling awos and there was a slight rise in conditions... Hmmm. I got back to the airport at about 11:45 or so and rolled the plane out. At that time we had about 2200 and 7 or 8 miles. Someone said if I didnt fly now, we were going to get rained on.......... 'nuff said... I gave it a final going over and jumped in, started it up and taxied out.. Run-up was routine, all things checked out good and it was time to go........ Lined her up and squeezed in the power. (180hp with Sensenich 85 inch) This baby doesn't rev much at static or slow speeds.. I kept the tail a little low and I was off in perhaps 5 or 6 hundred feet (maybe less or more). I was off the ground at about 12:15 CST Cloud bottoms were about 2000 feet and wx was slowly deteriorating. In level flight turning 2450 to 2500, I indicated about 180 on both the Dynon and a regular Airspeed indicator.. Oil temp climbed up to about 180 and leveled off. When taxi-ing in, the oil temp was slowly climbing up and was up to 190. I think it was not going to go much higher. I have an old used Stewart Warner oil cooler. I was concerned some about the closness of the exhaust pipe bends to the cowling so I installed the aluminum sticky back foil. The cowling was not even warm. But yesterday, after a 3 minute full power runup, the cowling did heat up a little. Now I know it is not going to be a problem. Stall speed with full flaps was about 52 or 53 indicated. I didnt do a flaps up stall yet. Weather was closing in on me so I couldn't do all I wanted to do... I was flying with about 13 or 14 gallons fuel in right side and just a couple gallons in left side. I had some heavy right wing which may be result of most fuel on right side. I also needed a very small amout of "left" rudder, almost none at all. Upper and lower intersection fairings are not installed on it yet. Actually I don't even have any yet.... Maybe when these are bought and installed it will be in trim. Maybe it will trim up with the gear leg fairings.. It all ended too soon. Look at the Pictures on the above website. Yes it is an Ugly RV but it will get painted next Spring. Look how short it looks with that gray cowling and nose. Hopefully I will have it at Sun and Fun...Look for the Ugly duckling down there... Bob Urban said there are no ugly RV's... This plane was originally started by Merle Prussia in Monroe, Washington in early 1990's I bought it and started working on it in 1998. For a couple of years things werent happening. Then I figured it out. I was spending too much time reading emails and not enought time working on the airplane. I bet if there was no internet, there would be a lot of RV's flying. If you go to the website above "pilot information" and look at the Pitt's in the picture above the airport , that is the engine that is in this RV. Yep, now I have two airplanes and only one engine. Is anyone interested in a flyin here next year? This airport has room to tie down a bunch of RV's, Tailwinds, Mustang II's and T-18's, in the grass.(yes, Pitt's and Eagles too) There is room to camp and motels and restaurants are all real close by. Look at Jim Wright's map We have a courtesy car plus pilots who will take peoeple where they need to go. We might even be able to mooch some fuel from the airport authority for homebuilts and small sport-planes, especially if anyone wanted to give Young Eagle rides. At least we will work out a discounted fuel price if there is any interest in this... One of the local RV owners said he would kick in a keg of beer ( didn't you Keith Hedrick) and we can get a hillbilly to cook a whole hog. This would all be free. Another RV guy will play the banjo and drag down a bunch of blue grass jammers ( won't you Mark Phillips from Williamsville?) There are two Mark Phillips who get on the list... Just a thought, but this woiuld be a good cooling down week-end trip for next Summer or Fall.. We could start it on a Friday afternoon and finish up on Sunday.... Phil in Litchfield, IL do not archive ________________________________ Message 9 _____________________________________ Time: 04:39:45 PM PST US From: "Ed Anderson" Subject: Re: RV-List: first new RV flight in 2005 --> RV-List message posted by: "Ed Anderson" Congratulations, Phil! Regardless of whether the first in 05, a great accomplishment. Remember, there are NO ugly RVs, just some with more cosmetic enhancement than others {:>) Ed Anderson Rv-6A N494BW Rotary Powered Matthews, NC ----- Original Message ----- From: "Phil Sisson, Litchfield Aerobatic Club" "Merle V. Prusia" ; "Lawrence, Jeffrey A" ; "Mark Phillips" ; "Robert Wade" ; "Bob U." ; "Brent Smith" Subject: RV-List: first new RV flight in 2005 > --> RV-List message posted by: "Phil Sisson, Litchfield Aerobatic Club" > > do not archive > > Was I the first new RV to fly in 2005? serial number 20762 If not, > speak up and I will gladly concede.... > Here is a web site with the pix.. > http://www.litchfieldil.com/members/airport/ > Today, our wx here was crappy, just like yesterday. When I woke up this > morning the awos was reporting 1/2 and 200 feet.... I went back to > sleep........ > Finally got up and took my usual Sunday mornig trip to a daughters house > for breakfast....... > Kept calling awos and there was a slight rise in conditions... Hmmm. > > I got back to the airport at about 11:45 or so and rolled the plane out. > At that time we had about 2200 and 7 or 8 miles. > Someone said if I didnt fly now, we were going to get rained > on.......... 'nuff said... > I gave it a final going over and jumped in, started it up and taxied out.. > Run-up was routine, all things checked out good and it was time to > go........ > Lined her up and squeezed in the power. (180hp with Sensenich 85 inch) > This baby doesn't rev much at static or slow speeds.. I kept the tail a > little low and I was off in perhaps 5 or 6 hundred feet (maybe less or > more). I was off the ground at about 12:15 CST > > Cloud bottoms were about 2000 feet and wx was slowly deteriorating. In > level flight turning 2450 to 2500, I indicated about 180 on both the > Dynon and a regular Airspeed indicator.. Oil temp climbed up to about > 180 and leveled off. When taxi-ing in, the oil temp was slowly climbing > up and was up to 190. I think it was not going to go much higher. I have > an old used Stewart Warner oil cooler. > I was concerned some about the closness of the exhaust pipe bends to the > cowling so I installed the aluminum sticky back foil. The cowling was > not even warm. But yesterday, after a 3 minute full power runup, the > cowling did heat up a little. Now I know it is not going to be a problem. > Stall speed with full flaps was about 52 or 53 indicated. I didnt do a > flaps up stall yet. Weather was closing in on me so I couldn't do all I > wanted to do... > I was flying with about 13 or 14 gallons fuel in right side and just a > couple gallons in left side. > I had some heavy right wing which may be result of most fuel on right > side. I also needed a very small amout of "left" rudder, almost none at > all. Upper and lower intersection fairings are not installed on it yet. > Actually I don't even have any yet.... Maybe when these are bought and > installed it will be in trim. Maybe it will trim up with the gear leg > fairings.. > It all ended too soon. Look at the Pictures on the above website. > Yes it is an Ugly RV but it will get painted next Spring. Look how short > it looks with that gray cowling and nose. Hopefully I will have it at > Sun and Fun...Look for the Ugly duckling down there... > Bob Urban said there are no ugly RV's... > This plane was originally started by Merle Prussia in Monroe, Washington > in early 1990's I bought it and started working on it in 1998. For a > couple of years things werent happening. Then I figured it out. I was > spending too much time reading emails and not enought time working on > the airplane. I bet if there was no internet, there would be a lot of > RV's flying. > If you go to the website above "pilot information" and look at the > Pitt's in the picture above the airport , that is the engine that is in > this RV. Yep, now I have two airplanes and only one engine. > > Is anyone interested in a flyin here next year? This airport has room to > tie down a bunch of RV's, Tailwinds, Mustang II's and T-18's, in the > grass.(yes, Pitt's and Eagles too) There is room to camp and motels and > restaurants are all real close by. Look at Jim Wright's map We have a > courtesy car plus pilots who will take peoeple where they need to go. > We might even be able to mooch some fuel from the airport authority for > homebuilts and small sport-planes, especially if anyone wanted to give > Young Eagle rides. At least we will work out a discounted fuel price if > there is any interest in this... > > One of the local RV owners said he would kick in a keg of beer ( didn't > you Keith Hedrick) and we can get a hillbilly to cook a whole hog. > This would all be free. Another RV guy will play the banjo and drag > down a bunch of blue grass jammers ( won't you Mark Phillips from > Williamsville?) > There are two Mark Phillips who get on the list... > > Just a thought, but this woiuld be a good cooling down week-end trip for > next Summer or Fall.. We could start it on a Friday afternoon and finish > up on Sunday.... > > Phil in Litchfield, IL > > do not archive > > ________________________________ Message 10 ____________________________________ Time: 05:14:01 PM PST US From: Scott VanArtsdalen Subject: RV-List: Skytec Flyweight Starter question --> RV-List message posted by: Scott VanArtsdalen Just starting my condition inspection and noticed something on my Skytec starter. It has a bit of grease seeping out of the main housing. Sorry I don't know the technical terms for these things. It looks like it's made about 3 or 4 big drips of grease into my lower cowling. Is this something I can just tighten up or does it warrant further investigation? I'm going to take some pictures next time I'm out there. -- Scott VanArtsdalen Van Arts Consulting Services 3848 McHenry Ave Suite #155-184 Modesto, CA 95356 209-986-4647 Ps 34:4,6 ________________________________ Message 11 ____________________________________ Time: 05:23:46 PM PST US From: William Near Subject: RV-List: Louis, Missouri in 1888. He began --> RV-List message posted by: William Near ALERT! This e-mail, in its original form, contained one or more attached files that were infected with a virus, worm, or other type of security threat. This e-mail was sent from a Road Runner IP address. As part of our continuing initiative to stop the spread of malicious viruses, Road Runner scans all outbound e-mail attachments. If a virus, worm, or other security threat is found, Road Runner cleans or deletes the infected attachments as necessary, but continues to send the original message content to the recipient. Further information on this initiative can be found at http://help.rr.com/faqs/e_mgsp.html. Please be advised that Road Runner does not contact the original sender of the e-mail as part of the scanning process. Road Runner recommends that if the sender is known to you, you contact them directly and advise them of their issue. If you do not know the sender, we advise you to forward this message in its entirety (including full headers) to the Road Runner Abuse Department, at abuse@rr.com. He attended the Sorbonne in Paris for a year and then returned to Harvard. He then began to study at Oxford. In 1914, he became a resident of England. In 1915, he married Vivian Haigh-Wood, but due to her mental instability and many admissions to mental institutions, they divorced eight years later. ________________________________ Message 12 ____________________________________ Time: 05:32:38 PM PST US From: Richard Scott Subject: RV-List: A new way to screw up! --> RV-List message posted by: Richard Scott I present the following for your entertainment, because I know no one else would possibly screw up the same way. A couple months ago I was looking for some info in AC 43.13 & a statement caught my eye that said if aluminum gets heated above 212 degrees F, it should be re-heat treated. I thought that 212 was pretty low and somehow remembered that little bit of trivia. Fast forward about 6 weeks. I was about to finish my emp. All I had to do was fit the elevators and drill out the holes in the elevator horns. Fired up the propane heater that a friend loaned me, got my HS down off the shelf & put it on my work table. The HS was kind of dusty, so I grabbed my shop brush, cleaned it off and as I hung up my brush I realized that the end of the HS extended beyond the table and over the heater which was about 3' tall and only 4" below the HS. Raced around to shut that sucker off, checked the HS & it was really hot! But no visible damage. A 400 degree thermometer held 4" above the 35,000 BTU heater was still moving up at a pretty good clip until it pegged the needle . A lot hotter than that 212 degree limit suggested by the FAA. Van's had never run into the problem and couldn't help me on it. By lucky coincidence, I used to work at the Air Guard in non-destructive testing until they kicked me out for the sin of turning 60 a year and a half ago. At our shop, we had an eddy current test instrument that could be used for sorting alloys, although we never used that particular function--it was great for finding cracks in F-15's, however. So I put a piece of scrap aluminum above the heater for an hour and even hit a small area with a propane torch for a couple seconds (the primer started to smoke) to make sure the instrument would find any damage if it were present. Took both the test piece and the HS to my old shop & gave the guys a chance to have a little "training session". The instrument clearly showed damage in the scrap, decreasing with distance from the heat source. And it showed no change in the HS skin. Whew! But that's not all. Shortly after that I spent some time with my AI helping him with a little riveting. The subject of annealing rivets came up, a light bulb came on in my feeble brain and I immediately thought of my HS. I hadn't checked rivets on the eddy current tester because the probe was too large for a rivet. So I set up my pneumatic squeezer with low pressure so it would just start to squeeze an AN3 rivet. Squeezed & measure 10 of them to get a good sample. Then heated 10 rivets in my piece of scrap held over the heater for 2 minutes. Squeezed them and measured them, although the results were obvious: Unheated rivets squeezed to 0.187" on average and heated ones squeezed to 0.125". which was about the same as the gap I had set the squeezer for with no resistance. So with a couple turns of the adjustable set holder, they might have squeezed even shorter. Definitely weakened by the heat. So I replaced all the rivets on the tip rib as well as all the ones on bottom skin from the last 2 ribs out including those on the spars. About 66 rivets in all. Several of them on the bottom of the tip rib drilled out really easily. Drill down, break off the head & they just popped right out, no problem at all. The rest of the rivets, along the spars, the top of the tip rib and the second rib from the end gave the usual degree of difficulty. It's winter. It's cold in some parts of the country. Keep those propane heaters away from your work! Richard Scott RV-9A Finally starting wings! ________________________________ Message 13 ____________________________________ Time: 05:45:35 PM PST US From: linn walters Subject: Re: RV-List: Skytec Flyweight Starter question --> RV-List message posted by: linn walters Scott VanArtsdalen wrote: >--> RV-List message posted by: Scott VanArtsdalen > >Just starting my condition inspection and noticed something on my Skytec >starter. It has a bit of grease seeping out of the main housing. Sorry >I don't know the technical terms for these things. It looks like it's >made about 3 or 4 big drips of grease into my lower cowling. Is this >something I can just tighten up or does it warrant further >investigation? I'm going to take some pictures next time I'm out there. > Send Les Staples an email ..... he'll get you all the info you need to fix your problem, if there is one. He's at lstaples@itexas.net. Good luck, Linn -- No virus found in this outgoing message. Checked by AVG Anti-Virus. ________________________________ Message 14 ____________________________________ Time: 06:04:51 PM PST US From: "LarryRobertHelming" Subject: Re: RV-List: first new RV flight in 2005 --> RV-List message posted by: "LarryRobertHelming" We are envious of your accomplishment. We all want to join you. Way to go. You the man. Indiana Larry, RV7 TipUp "SunSeeker" Evansville, Indiana (just north of western Kentucky) ----- Original Message ----- From: "Phil Sisson, Litchfield Aerobatic Club" "Merle V. Prusia" ; "Lawrence, Jeffrey A" ; "Mark Phillips" ; "Robert Wade" ; "Bob U." ; "Brent Smith" Subject: RV-List: first new RV flight in 2005 > --> RV-List message posted by: "Phil Sisson, Litchfield Aerobatic Club" > > do not archive > > Was I the first new RV to fly in 2005? serial number 20762 If not, > speak up and I will gladly concede.... > Here is a web site with the pix.. > http://www.litchfieldil.com/members/airport/ > Today, our wx here was crappy, just like yesterday. When I woke up this > morning the awos was reporting 1/2 and 200 feet.... I went back to > sleep........ > Finally got up and took my usual Sunday mornig trip to a daughters house > for breakfast....... > Kept calling awos and there was a slight rise in conditions... Hmmm. > > I got back to the airport at about 11:45 or so and rolled the plane out. > At that time we had about 2200 and 7 or 8 miles. > Someone said if I didnt fly now, we were going to get rained > on.......... 'nuff said... > I gave it a final going over and jumped in, started it up and taxied out.. > Run-up was routine, all things checked out good and it was time to > go........ > Lined her up and squeezed in the power. (180hp with Sensenich 85 inch) > This baby doesn't rev much at static or slow speeds.. I kept the tail a > little low and I was off in perhaps 5 or 6 hundred feet (maybe less or > more). I was off the ground at about 12:15 CST > > Cloud bottoms were about 2000 feet and wx was slowly deteriorating. In > level flight turning 2450 to 2500, I indicated about 180 on both the > Dynon and a regular Airspeed indicator.. Oil temp climbed up to about > 180 and leveled off. When taxi-ing in, the oil temp was slowly climbing > up and was up to 190. I think it was not going to go much higher. I have > an old used Stewart Warner oil cooler. > I was concerned some about the closness of the exhaust pipe bends to the > cowling so I installed the aluminum sticky back foil. The cowling was > not even warm. But yesterday, after a 3 minute full power runup, the > cowling did heat up a little. Now I know it is not going to be a problem. > Stall speed with full flaps was about 52 or 53 indicated. I didnt do a > flaps up stall yet. Weather was closing in on me so I couldn't do all I > wanted to do... > I was flying with about 13 or 14 gallons fuel in right side and just a > couple gallons in left side. > I had some heavy right wing which may be result of most fuel on right > side. I also needed a very small amout of "left" rudder, almost none at > all. Upper and lower intersection fairings are not installed on it yet. > Actually I don't even have any yet.... Maybe when these are bought and > installed it will be in trim. Maybe it will trim up with the gear leg > fairings.. > It all ended too soon. Look at the Pictures on the above website. > Yes it is an Ugly RV but it will get painted next Spring. Look how short > it looks with that gray cowling and nose. Hopefully I will have it at > Sun and Fun...Look for the Ugly duckling down there... > Bob Urban said there are no ugly RV's... > This plane was originally started by Merle Prussia in Monroe, Washington > in early 1990's I bought it and started working on it in 1998. For a > couple of years things werent happening. Then I figured it out. I was > spending too much time reading emails and not enought time working on > the airplane. I bet if there was no internet, there would be a lot of > RV's flying. > If you go to the website above "pilot information" and look at the > Pitt's in the picture above the airport , that is the engine that is in > this RV. Yep, now I have two airplanes and only one engine. > > Is anyone interested in a flyin here next year? This airport has room to > tie down a bunch of RV's, Tailwinds, Mustang II's and T-18's, in the > grass.(yes, Pitt's and Eagles too) There is room to camp and motels and > restaurants are all real close by. Look at Jim Wright's map We have a > courtesy car plus pilots who will take peoeple where they need to go. > We might even be able to mooch some fuel from the airport authority for > homebuilts and small sport-planes, especially if anyone wanted to give > Young Eagle rides. At least we will work out a discounted fuel price if > there is any interest in this... > > One of the local RV owners said he would kick in a keg of beer ( didn't > you Keith Hedrick) and we can get a hillbilly to cook a whole hog. > This would all be free. Another RV guy will play the banjo and drag > down a bunch of blue grass jammers ( won't you Mark Phillips from > Williamsville?) > There are two Mark Phillips who get on the list... > > Just a thought, but this woiuld be a good cooling down week-end trip for > next Summer or Fall.. We could start it on a Friday afternoon and finish > up on Sunday.... > > Phil in Litchfield, IL > > do not archive > > ________________________________ Message 15 ____________________________________ Time: 06:04:51 PM PST US From: "Keith Hedrick OD" , "Ray Dorf" Subject: Re: RV-List: first new RV flight in 2005 --> RV-List message posted by: "Keith Hedrick OD" Phil Congrats on your flight. It was a beautiful sight. And that is an affirmative on the cerveza, one for sure, two if we need them. Keith in Litchfield, IL - 3LF RV 6 do not archive >SNIP> > Is anyone interested in a flyin here next year? This airport has room to > tie down a bunch of RV's, Tailwinds, Mustang II's and T-18's, in the > grass.(yes, Pitt's and Eagles too) There is room to camp and motels and > restaurants are all real close by. Look at Jim Wright's map We have a > courtesy car plus pilots who will take peoeple where they need to go. > We might even be able to mooch some fuel from the airport authority for > homebuilts and small sport-planes, especially if anyone wanted to give > Young Eagle rides. At least we will work out a discounted fuel price if > there is any interest in this... > > One of the local RV owners said he would kick in a keg of beer ( didn't > you Keith Hedrick) and we can get a hillbilly to cook a whole hog. > This would all be free. Another RV guy will play the banjo and drag > down a bunch of blue grass jammers ( won't you Mark Phillips from > Williamsville?) > There are two Mark Phillips who get on the list... > > Just a thought, but this woiuld be a good cooling down week-end trip for > next Summer or Fall.. We could start it on a Friday afternoon and finish > up on Sunday.... > > Phil in Litchfield, IL > > do not archive > > ________________________________ Message 16 ____________________________________ Time: 06:18:37 PM PST US From: Dale Mitchell Subject: Re: RV-List: Tru Track auto pilots --> RV-List message posted by: Dale Mitchell Try SteinAir http://www.steinair.com/home.htm Dale Mitchell --- George Steube wrote: > --> RV-List message posted by: "George Steube" > > > I would like to know who found the best prices on > Tru-Track autopilots and > where. Also, who provided good service? Thanks. > George > > > > Contributions > any other > Forums. > > http://www.matronics.com/subscription > http://www.matronics.com/FAQ/RV-List.htm > http://www.matronics.com/archives > http://www.matronics.com/photoshare > http://www.matronics.com/emaillists > > > > > > ________________________________ Message 17 ____________________________________ Time: 06:39:22 PM PST US From: Fiveonepw@aol.com Subject: Re: RV-List: first new RV flight in 2005 --> RV-List message posted by: Fiveonepw@aol.com In a message dated 01/02/2005 5:47:48 PM Central Standard Time, sisson@consolidated.net writes: There are two Mark Phillips who get on the list... >>> hhhhmmmmmmmm................. sounds like a party- maybe I could drag the axe out of the basement and toss it in the back of the RV... Columbia TN Mark Phillips -6A, 144 hours & maybe not nekkid much longer? do not archive ________________________________ Message 18 ____________________________________ Time: 07:17:02 PM PST US From: Charlie Kuss Subject: Re: RV-List: Re: [VAF Mailing List] Oil Cooler Flange Failure --> RV-List message posted by: Charlie Kuss Scott, According to the SACRAMENTO SKYRANCH ENGINEERING MANUAL, the Lycoming engines distort almost 1/4" while running. 3/16" of this takes place in the crankcases. The other 1/16" is due to expansion of each cylinder head as it is stressed by the compression stroke of the engine. I think that it is for this reason that the vertical baffles are not one solid piece. Charlie Kuss >--> RV-List message posted by: "Scott Jackson" > >One thing that no one has addressed that may be part of the problem is the >change in the space between the mounting holes on the cooler as a result of >temperature changes. >With an all-aluminum body, I wonder if the cooler is expanding more than the >structure that it's attached to. >For instance, the baffle sidewalls that fit around the valve covers are not >one piece, they interweave where they meet between the two cylinder heads, I >would think this is solely to accomodate the changing dimensions of the >engine as the heads heat up. >Scott in VancouveRV-6, 167 hours >back in the air early November after 5-month repair! >----- Original Message ----- >From: "Wayne Sweet" >To: ; ; >; >Subject: RV-List: Re: [VAF Mailing List] Oil Cooler Flange Failure > > > > --> RV-List message posted by: "Wayne Sweet" > > > > Dan, > > Looks like you may have vibration problems. Have you had the prop/engine > > dynamically balance? If not that would be a good thing to do. Can't > > believe normal stress (unless the mounting is out of alignment somehow) > > did that. > > Don't blame it on Van's design. Four bolts should be enough, UNLESS it is > > under high vibration or mis-alignment stress. > > Wayne > > ----- Original Message ----- > > From: Dan Checkoway > > To: SoCAL-RVlist@yahoogroups.com ; vansairforce@yahoogroups.com ; > > rv-list@matronics.com ; RV7and7A@yahoogroups.com > > Sent: Thursday, December 30, 2004 9:17 PM > > Subject: [VAF Mailing List] Oil Cooler Flange Failure > > > > > > As you may recall, I had a few bad baffle cracks early on. I'm happy to > > report that my latest baffle/brace design seems to be rock solid. > > However...last night, when doing an oil change, I noticed that my oil > > cooler > > flanges all but self-destructed. The oil cooler flanges have become the > > weak link in the chain. Photos here: > > > > http://www.rvproject.com/20041229.html (bottom of page) > > > > I blindly followed "the plans" (FWF DWG OP-27) when installing my oil > > cooler, and while I don't normally criticize the amazing job Van's has > > done, > > this is one area where the plans are definitely leading "newbies" like me > > astray. I take full responsibility for what happened, but you might want > > to > > check your installation if you followed the drawing blindly like I did. > > > > Here's the end result, including the modifications I made (that probably > > MANY less ignorant people have already made) in order to make the > > installation robust. > > > > http://www.rvproject.com/20041230.html > > > > Hope this helps! > > )_( Dan > > RV-7 N714D > > http://www.rvproject.com > > > > > > Online help on this group at: > > http://help.yahoo.com/help/groups/ > > > > > > ADVERTISEMENT > > > > > > a.. To visit your group on the web, go to: > > http://groups.yahoo.com/group/vansairforce/ > > > > b.. To unsubscribe from this group, send an email to: > > vansairforce-unsubscribe@yahoogroups.com > > > > > > I am using the free version of SPAMfighter for private users. > > It has removed 658 spam emails to date. > > Paying users do not have this message in their emails. > > Try www.SPAMfighter.com for free now! > > > > > > > > ________________________________ Message 19 ____________________________________ Time: 07:20:46 PM PST US From: "Phil Sisson, Litchfield Aerobatic Club" Subject: Re: RV-List: first new RV flight in 2005 --> RV-List message posted by: "Phil Sisson, Litchfield Aerobatic Club" Ed Anderson wrote: >--> RV-List message posted by: "Ed Anderson" > >Congratulations, Phil! Regardless of whether the first in 05, a great >accomplishment. >Remember, there are NO ugly RVs, just some with more cosmetic enhancement >than others {:>) > >Ed Anderson >Rv-6A N494BW Rotary Powered >Matthews, NC > >----- Original Message ----- >From: "Phil Sisson, Litchfield Aerobatic Club" >To: ; "Keith Hedrick OD" ; >"Merle V. Prusia" ; "Lawrence, Jeffrey A" >; "Mark Phillips" ; "Robert >Wade" ; "Bob U." ; "Brent Smith" > >Subject: RV-List: first new RV flight in 2005 > > > > >>--> RV-List message posted by: "Phil Sisson, Litchfield Aerobatic Club" >> >> > > > >>do not archive >> >>Was I the first new RV to fly in 2005? serial number 20762 If not, >>speak up and I will gladly concede.... >>Here is a web site with the pix.. >>http://www.litchfieldil.com/members/airport/ >>Today, our wx here was crappy, just like yesterday. When I woke up this >>morning the awos was reporting 1/2 and 200 feet.... I went back to >>sleep........ >>Finally got up and took my usual Sunday mornig trip to a daughters house >>for breakfast....... >>Kept calling awos and there was a slight rise in conditions... Hmmm. >> >>I got back to the airport at about 11:45 or so and rolled the plane out. >>At that time we had about 2200 and 7 or 8 miles. >>Someone said if I didnt fly now, we were going to get rained >>on.......... 'nuff said... >>I gave it a final going over and jumped in, started it up and taxied out.. >>Run-up was routine, all things checked out good and it was time to >>go........ >>Lined her up and squeezed in the power. (180hp with Sensenich 85 inch) >>This baby doesn't rev much at static or slow speeds.. I kept the tail a >>little low and I was off in perhaps 5 or 6 hundred feet (maybe less or >>more). I was off the ground at about 12:15 CST >> >>Cloud bottoms were about 2000 feet and wx was slowly deteriorating. In >>level flight turning 2450 to 2500, I indicated about 180 on both the >>Dynon and a regular Airspeed indicator.. Oil temp climbed up to about >>180 and leveled off. When taxi-ing in, the oil temp was slowly climbing >>up and was up to 190. I think it was not going to go much higher. I have >>an old used Stewart Warner oil cooler. >>I was concerned some about the closness of the exhaust pipe bends to the >>cowling so I installed the aluminum sticky back foil. The cowling was >>not even warm. But yesterday, after a 3 minute full power runup, the >>cowling did heat up a little. Now I know it is not going to be a problem. >>Stall speed with full flaps was about 52 or 53 indicated. I didnt do a >>flaps up stall yet. Weather was closing in on me so I couldn't do all I >>wanted to do... >>I was flying with about 13 or 14 gallons fuel in right side and just a >>couple gallons in left side. >>I had some heavy right wing which may be result of most fuel on right >>side. I also needed a very small amout of "left" rudder, almost none at >>all. Upper and lower intersection fairings are not installed on it yet. >>Actually I don't even have any yet.... Maybe when these are bought and >>installed it will be in trim. Maybe it will trim up with the gear leg >>fairings.. >>It all ended too soon. Look at the Pictures on the above website. >>Yes it is an Ugly RV but it will get painted next Spring. Look how short >>it looks with that gray cowling and nose. Hopefully I will have it at >>Sun and Fun...Look for the Ugly duckling down there... >>Bob Urban said there are no ugly RV's... >>This plane was originally started by Merle Prussia in Monroe, Washington >>in early 1990's I bought it and started working on it in 1998. For a >>couple of years things werent happening. Then I figured it out. I was >>spending too much time reading emails and not enought time working on >>the airplane. I bet if there was no internet, there would be a lot of >>RV's flying. >>If you go to the website above "pilot information" and look at the >>Pitt's in the picture above the airport , that is the engine that is in >>this RV. Yep, now I have two airplanes and only one engine. >> >>Is anyone interested in a flyin here next year? This airport has room to >>tie down a bunch of RV's, Tailwinds, Mustang II's and T-18's, in the >>grass.(yes, Pitt's and Eagles too) There is room to camp and motels and >>restaurants are all real close by. Look at Jim Wright's map We have a >>courtesy car plus pilots who will take peoeple where they need to go. >>We might even be able to mooch some fuel from the airport authority for >>homebuilts and small sport-planes, especially if anyone wanted to give >>Young Eagle rides. At least we will work out a discounted fuel price if >>there is any interest in this... >> >>One of the local RV owners said he would kick in a keg of beer ( didn't >>you Keith Hedrick) and we can get a hillbilly to cook a whole hog. >>This would all be free. Another RV guy will play the banjo and drag >>down a bunch of blue grass jammers ( won't you Mark Phillips from >>Williamsville?) >>There are two Mark Phillips who get on the list... >> >>Just a thought, but this woiuld be a good cooling down week-end trip for >>next Summer or Fall.. We could start it on a Friday afternoon and finish >>up on Sunday.... >> >>Phil in Litchfield, IL >> >>do not archive >> >> >> >> > > > > Thanks alot Ed, Wish I had more good weather today. Maybe later in the week.. Phil ________________________________ Message 20 ____________________________________ Time: 07:39:42 PM PST US From: "Phil Sisson, Litchfield Aerobatic Club" Subject: Re: RV-List: first new RV flight in 2005 --> RV-List message posted by: "Phil Sisson, Litchfield Aerobatic Club" Fiveonepw@aol.com wrote: >--> RV-List message posted by: Fiveonepw@aol.com > >In a message dated 01/02/2005 5:47:48 PM Central Standard Time, >sisson@consolidated.net writes: >There are two Mark Phillips who get on the list... > > >hhhhmmmmmmmm................. sounds like a party- maybe I could drag the axe >out of the basement and toss it in the back of the RV... > >Columbia TN Mark Phillips -6A, 144 hours & maybe not nekkid much longer? do >not archive > > > Ten four on two Mark Phillips..... Williamsville Mark is building 6 Taildragger and getting close . If he would stay away from the Banjo, he would get it finished....... My 6 has 2.1 hours on it now and 1.1 is ground time. It is going to be Nekkid until at least late Springtime..... Phil do not archive ________________________________ Message 21 ____________________________________ Time: 07:48:22 PM PST US From: Vanremog@aol.com Subject: Re: RV-List: Re: [VAF Mailing List] Oil Cooler Flange Failure --> RV-List message posted by: Vanremog@aol.com In a message dated 1/2/2005 2:29:43 P.M. Pacific Standard Time, jayeandscott@telus.net writes: For instance, the baffle sidewalls that fit around the valve covers are not one piece, they interweave where they meet between the two cylinder heads, I would think this is solely to accommodate the changing dimensions of the engine as the heads heat up. ============================= Actually, the need for baffles configured in this way has less to do with thermal expansion and much more to do with accommodating the rather large mechanical excursions that occur out at the ends of the individual aircraft engine cylinders resulting from the forces of turning the combustion event into rotary motion. GV (RV-6A N1GV O-360-A1A, C/S, Flying 736hrs, Silicon Valley, CA) ________________________________ Message 22 ____________________________________ Time: 10:37:06 PM PST US From: Mickey Coggins Subject: Re: RV-List: RV-8 Strakes --> RV-List message posted by: Mickey Coggins Hi Stu, Thanks for the info. I think I'll do it like you did and fly first to see how it feels, and then add them later. Five knots is too much to just leave on the table! Best regards, and happy new year, Mickey > That would be me. I did install strakes on my RV-8. I flew it first without them > and documented my airspeeds and that I did indeed have significant 'tail shake' > prior to the stall. It is caused by the dirty air in a near stall coming around > the fuselage/landing gear just under the leading edge, and with no energy the wing > does not streamline the air, so it hits the horzontal Stab and shakes it about an > inch at the tip. I installed some Cessna 414 engine nacelle strakes (I bought at > Robertson in Arlington WA) on the fuselage in front of and above the leading edge. > Next flight there was NO tail shake and NO prestall buffet. In documenting changes > after installation, I saw no top end penalty and a 5 knot reduction in stall speed. > Worked for me. > > This mod is not for everyone in that the prestall buffet is gone. If one needs > that buffet to let them know he are close to stall, he should not install them. > -- Mickey Coggins http://www.rv8.ch/ #82007 Wiring