---------------------------------------------------------- RV-List Digest Archive --- Total Messages Posted Thu 04/07/05: 29 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 03:14 AM - Re: Reusing nuts? (Charles Rowbotham) 2. 07:48 AM - Re: Reusing nuts? (Mike Robertson) 3. 07:53 AM - Re: Re: Engine Mount (Mike Robertson) 4. 08:28 AM - Re: Gascolater (Mike Robertson) 5. 08:28 AM - Gascolater (Glen Matejcek) 6. 08:47 AM - External power socket (Glen Matejcek) 7. 08:55 AM - Re: Gascolater (Terry Watson) 8. 09:41 AM - Lightspeed vs. E/P-Mag (Konrad L. Werner) 9. 10:00 AM - Re: Gascolater (Bob) 10. 12:51 PM - leading edge of pre-fab tanks not matching wing skin... (Matt Johnson) 11. 01:30 PM - Re: leading edge of pre-fab tanks not matching wing skin... (not processed: message from valid local sender) (Scott Farner) 12. 01:58 PM - Re: leading edge of pre-fab tanks not matching wing skin... (Phil Sisson, Litchfield Aerobatic Club) 13. 02:28 PM - Re: leading edge of pre-fab tanks not matching wing (Jamie Painter) 14. 04:05 PM - Wheel pants mounting () 15. 04:11 PM - Re: Lightspeed vs. E/P-Mag (RVer273sb@aol.com) 16. 04:28 PM - Re: Reusing nuts? (MLWynn@aol.com) 17. 04:30 PM - Re: Reusing nuts? (MLWynn@aol.com) 18. 05:26 PM - Re: Gascolater (Alex Peterson) 19. 06:04 PM - Use of Lock-tite? (Mark Grieve) 20. 06:23 PM - MP (Vincent Welch) 21. 08:00 PM - Re: MP (Stewart, Michael (ISS Atlanta)) 22. 08:07 PM - [ Mani Ravee ] : New Email List Photo Share Available! (Email List Photo Shares) 23. 08:09 PM - [ David McNeill ] : New Email List Photo Share Available! (Email List Photo Shares) 24. 08:38 PM - Re: MP (RV6 Flyer) 25. 08:39 PM - Re: [ David McNeill ] : New Email List Photo Share Available! (Tom Gummo) 26. 08:42 PM - Re: Reusing nuts? (Vanremog@aol.com) 27. 09:37 PM - Re: Re Engine mount (Jim Oke) 28. 09:37 PM - Re: [ David McNeill ] : New Email List Photo Share Available! (Konrad L. Werner) 29. 11:20 PM - Re: I Like my P-Mags (early report) (Vanremog@aol.com) ________________________________ Message 1 _____________________________________ Time: 03:14:02 AM PST US From: "Charles Rowbotham" Subject: RE: RV-List: Reusing nuts? --> RV-List message posted by: "Charles Rowbotham" Michael, They are most likely ok - But - with the cost on the nut so little, we decided at the beginning to use them only once. Cheap insurance - one less thing to have second thoughts. We also applied a small amount of Torque-Seal for to confirm that the nut was tighten and torqued. Good Building, Chuck & Dave Rowbotham RV-8A >From: MLWynn@aol.com >Reply-To: rv-list@matronics.com >To: rv-list@matronics.com >Subject: RV-List: Reusing nuts? >Date: Wed, 6 Apr 2005 23:03:17 EDT > >--> RV-List message posted by: MLWynn@aol.com > >Hi folks, > >Just got done bolting the center hinge to the horizontal stabilizer. >Figured >out when it looked funny that I used the wrong washers. Changed them for >the >correct ones and then got to worrying if it is okay to use the same nylon >locking nuts again. Thoughts? > >Michael >RV8 >Empennage > > ________________________________ Message 2 _____________________________________ Time: 07:48:24 AM PST US From: "Mike Robertson" Subject: RE: RV-List: Reusing nuts? --> RV-List message posted by: "Mike Robertson" You can get away with using the same nylock nuts provided that the nylon insert still has its holding power. BUT.....for critical flight controls like you are talking I don't recommend it, especially considering the small cost of a nylock nut. Mike Robertson >From: MLWynn@aol.com >Reply-To: rv-list@matronics.com >To: rv-list@matronics.com >Subject: RV-List: Reusing nuts? >Date: Wed, 6 Apr 2005 23:03:17 EDT > >--> RV-List message posted by: MLWynn@aol.com > >Hi folks, > >Just got done bolting the center hinge to the horizontal stabilizer. >Figured >out when it looked funny that I used the wrong washers. Changed them for >the >correct ones and then got to worrying if it is okay to use the same nylon >locking nuts again. Thoughts? > >Michael >RV8 >Empennage > > ________________________________ Message 3 _____________________________________ Time: 07:53:23 AM PST US From: "Mike Robertson" Subject: RE: RV-List: RE: Engine Mount --> RV-List message posted by: "Mike Robertson" But DEAN....Just think of all the fun you've had building this and the encouragement from all your new friends. Mike PLEASE...Do not archive >From: "DEAN PSIROPOULOS" >Reply-To: rv-list@matronics.com >To: >Subject: RV-List: RE: Engine Mount >Date: Thu, 07 Apr 2005 02:27:51 -0400 > >--> RV-List message posted by: "DEAN PSIROPOULOS" > > >I shot a Thanksgiving weekend on this one Clive. I have an RV-6A and >waited >until I got my engine mount to drill the firewall holes. Problem was, the >upper left motor mount mounting boss was too high and if I just drilled it >through the firewall I'd also have interference of the bolt head with the >firewall weldment. So I talked to people on the phone, visited a few >projects and realized that those folks who took it on faith that the mount >would line up and went ahead and drilled pilot holes for jigging, without >having the motor mount, often had problems later that resulted in having to >final drill the mount offset one way or another. > >So I came away thinking I'd just move all the mounting holes down until the >top mounting hole had sufficient clearance. Ha...ya right, I measured down >and realized I could only move the bottom down about 1/8 to 3/16 before I'd >start having troubles with clearance on the BOTTOM bolt hole. So I looked >at the prints and measured the firewall bracket locations and the motor >mount bolt hole locations and...just my luck, both the mounting bosses and >the firewall brackets were out of tolerance in opposite directions. This >really exacerbated the problem. > >Now really upset that I wasted 3-4 days with this (when I was expecting to >drill the firewall and mount it on the jig and get on with some serious >fuselage construction), I took the whole thing down to Van's and plopped it >on their counter. I wanted THEM to fix the bracket on the firewall so that >the mount would actually fit. After all it was their vendors (or them) >who'd screwed both things up to begin with and I'd already paid them to >fabricate this part in the first place. They wouldn't do that but instead, >offered to give me a new steel weldment to replace the culprit on the back >of the firewall (gee thanks). They also suggested one other thing and that >was to see if the mount had enough play in it to allow the hole to be >drilled slightly offset to obtain the needed bolt clearance. > >Needless to say, I left there very unhappy but went home to see if the >mount >had any play to work with. Fortunately the -6A motor mount has both upper >arms independent at the firewall (no interconnecting tubes between them and >the lower arms as on the taildragger mount) and viola, if I clamped the >other mounting bosses to the firewall I could move the upper left mounting >arm down just enough to make the hole clear. So I held it in that position >and marked the hole. Then measured to make sure I had the clearance and >finally drilled. Now that I've mounted the mount, it has a small amount of >preload on the upper left arm. But steel is capable of handling this and I >can move it to that position by hand so it's not like there is a lot of >force on it. Nonetheless, it was just one more frustration in the process >of building that I could have done without (parts that could have been >designed with a bit more clearance or prefab parts that required major >modification, ask me about my canopy frame). Hope you can make your motor >mount work, I'd hate to think about having to rework a firewall weldment >after riveting the fuselage together!! Yes Sam, you can thank me again for >getting all the out-of-tolerance parts in my kit. > >Dean Psiropoulos >RV-6A N197DM >Wiring and plumbing > > >Time: 03:43:52 AM PST US >From: "Clive Whittfield" >Subject: RV-List: Engine mount > >--> RV-List message posted by: "Clive Whittfield" > >A question from a Kiwi newbie. ...........if drilled to size the bolt >head on the offending corner would interfere with the (correctly located) >steel engine mount support. > > ________________________________ Message 4 _____________________________________ Time: 08:28:02 AM PST US From: "Mike Robertson" Subject: RE: RV-List: Gascolater --> RV-List message posted by: "Mike Robertson" Funny you shoudl mention it Dean. We have the gascolator installed on Joe's plane with the AFP fuel injection, pumps and inline filter. The inline filter is very good and I have not seen anything get to the gascolator in over 200 hours of flying now. And I do experience a loss of fuel pressure every once in a while. I have noticed that it happens more during warm OATs. We are in the process of changing the fuel pump but I think I am going to remove the gascolator also. My thoughts are that the gascolator may be causing a slight increase in line resistatnce. That line resistance is just enough to slow down the fuel flow just enogh to also the fuel to vapor lock on occassion inside the fuel pump. Because the fuel pump gets conductive heating from the engine case, if the fuel slows down just a little it may be casuing a vapor situation inside the fuel pump leading to the loss in fuel pressure. I plan on doing a little more testing to make sure. I am going to change the fuel pump first and fly a while before I remove the gascolator. MIke Robertson >From: "DEAN PSIROPOULOS" >Reply-To: rv-list@matronics.com >To: >Subject: RV-List: Gascolater >Date: Thu, 07 Apr 2005 02:39:42 -0400 > >--> RV-List message posted by: "DEAN PSIROPOULOS" > > >You folks running fuel injected engines and especially you guys with >Airflow >Performance pump and filter....are you using a gascolater in the fuel line >and if so where and what has your experience been with it? A fellow RV-9A >builder suggested that he would probably eliminate the gascolater because >the AFP filter is very good and the gascolator is yet another item of line >friction (along with the multiple 180 degree tubing bends in the AFP >installation in the side by side airplanes) that he suspects may make for >possible vapor lock conditions on hot days. What are your experiences with >this set up? Would you recommend leaving the gascolator off with the AFP >fuel filter or .....what? Thanks. > >Dean Psiropoulos >RV-6A N197DM >Getting off my previous rant > > ________________________________ Message 5 _____________________________________ Time: 08:28:47 AM PST US From: "Glen Matejcek" Subject: RV-List: Gascolater --> RV-List message posted by: "Glen Matejcek" Hi Dean- I agree that gascolators are of somewhat limited value in general, but also feel that they are relatively good at catching water. Having less than fond memories of flush fuel caps and rainy days, I elected to keep one in my system. If the AFP filter will in fact stop water, it will also take a tiny fraction of the capacity of the gascolator to plug it. If it doesn't stop water, then it's ineffective in this role. In either case, the gascolator gets drained each flight, or at least each fill-up. The filter gets cleaned once a year. As far as being an impediment to fuel flow, I have 2 fuel pumps and no anecdotal evidence to support that being a valid concern. Having agonized over all the same location issues you bring up, I had a flash of inspiration and mounted my gascolator in the left wing root. The drain is now basically adjacent to the tank drain and much more accessible than a fire wall mount. No thermal / vapor lock issues, and should it leak, it's nowhere near the exhaust stream. I was pretty pleased with myself, until researching another issue led me to find an old article by none other than Eustace Bowhay in an old RVator suggesting the same installation. Ahh, well. Yet another wheel reinvented... On a tangential subject, and FWIW, I had a miserable time with the return fuel line in my 8 (TD). The plans call for it to run back through the gear tower to a T at the selector valve. To fabricate a decent line and get it, the fuel supply line, and their vinyl cushioning through that overstuffed hole in the gear tower without either mangling the line or enlarging the hole was beyond my feeble talents. So, I did some more research. It seems that the length of tubing called for in this segment of the installation is really only there to act as a heat exchanger. This is to preclude vapor lock during extended boost pump ops. Armed with that knowledge, I took an equal length of fuel line and bent it up into a big "S" shaped radiator and mounted it above the fuel pump package and Teed it back into the gascolator - filter line near the filter inlet. I hope this is of some use- Glen Matejcek aerobubba@earthlink.net > Time: 11:40:49 PM PST US > From: "DEAN PSIROPOULOS" > Subject: RV-List: Gascolater > > --> RV-List message posted by: "DEAN PSIROPOULOS" > > You folks running fuel injected engines and especially you guys with Airflow > Performance pump and filter....are you using a gascolater in the fuel line > and if so where and what has your experience been with it? A fellow RV-9A > builder suggested that he would probably eliminate the gascolater because > the AFP filter is very good and the gascolator is yet another item of line > friction (along with the multiple 180 degree tubing bends in the AFP > installation in the side by side airplanes) that he suspects may make for > possible vapor lock conditions on hot days. What are your experiences with > this set up? Would you recommend leaving the gascolator off with the AFP > fuel filter or .....what? Thanks. > > Dean Psiropoulos > RV-6A N197DM > Getting off my previous rant > > ________________________________ Message 6 _____________________________________ Time: 08:47:11 AM PST US From: "Glen Matejcek" Subject: RV-List: External power socket --> RV-List message posted by: "Glen Matejcek" Howdy- I mounted a piper style socket A/C right in the belly, just aft of the bulkhead behind the battery on my aft-battery -8. This allows for jump starting, battery charging, and unlimited in - the - hangar tinkering with my all - electric airplane. I made a right angle doubler that rivets to the bulkhead and the skin. This also mounts the contactor. External power to the socket closes the contactor, a diode in the contactor to ground bus line protects against reverse polarity, and one of Eric Jones' OVM's protects against over voltage. The aft-of-the-trailing edge location of the socket keeps rampies out of the prop arc, and the belly (vice cockpit) location allows me to stay dry. You do realize, of course, that the only time you'll ever need a jump is when it's cold and rainy, right? ;-) FWIW- Glen Matejcek aerobubba@earthlink.net > > > --> RV-List message posted by: "Kosta Lewis" > > > >>Has anyone installed an external power socket on their RV (for > > charging, > >>jump starting after leaving master on, etc).If so, what, where, how? > > Other >thoughts? > > ________________________________ Message 7 _____________________________________ Time: 08:55:02 AM PST US From: "Terry Watson" Subject: RE: RV-List: Gascolater --> RV-List message posted by: "Terry Watson" I mounted an Andair gascolator in the left wing root of my RV-8A with AFP fuel injection. Then I called the man at AFP and discussed it with him. He said I didn't need to install the AFP fuel filter since the Andair gascolator also has a fine screen filter. He told me he thought the gascolator was unnecessary, and that I would have been better off just using his filter. Terry RV-8A finishing Seattle --> RV-List message posted by: "DEAN PSIROPOULOS" You folks running fuel injected engines and especially you guys with Airflow Performance pump and filter....are you using a gascolater in the fuel line and if so where and what has your experience been with it? A fellow RV-9A builder suggested that he would probably eliminate the gascolater because the AFP filter is very good and the gascolator is yet another item of line friction (along with the multiple 180 degree tubing bends in the AFP installation in the side by side airplanes) that he suspects may make for possible vapor lock conditions on hot days. What are your experiences with this set up? Would you recommend leaving the gascolator off with the AFP fuel filter or .....what? Thanks. ________________________________ Message 8 _____________________________________ Time: 09:41:12 AM PST US From: "Konrad L. Werner" Subject: RV-List: Lightspeed vs. E/P-Mag --> RV-List message posted by: "Konrad L. Werner" Has anyone ever compared the performance gains between the Lightspeed- and the E/P-Mag Electronic Ignitions. I just wonder if the E-P Mag has anywhere near the same performance improvements that Lightspeed claims (which I do believe!) ? Would they have close to the same timing curves if one where to use one LSE & one E/P-Mag on the same engine? Or are these curves "proprietary/secret" information at both companies. Just curious about mixing different E.I. Systems. Konrad Do Not Archive for now ________________________________ Message 9 _____________________________________ Time: 10:00:41 AM PST US From: Bob Subject: Re: RV-List: Gascolater clamav-milter version 0.80j on opie.wvnet.edu --> RV-List message posted by: Bob At 01:39 AM 4/7/05, you wrote: >--> RV-List message posted by: "DEAN PSIROPOULOS" > > >You folks running fuel injected engines and especially you guys with Airflow >Performance pump and filter....are you using a gascolater in the fuel line >and if so where and what has your experience been with it? I do not use a gascolater. After 3 years and 190 hours no problems. Bob RV6 NightFighter ________________________________ Message 10 ____________________________________ Time: 12:51:31 PM PST US From: "Matt Johnson" Subject: RV-List: leading edge of pre-fab tanks not matching wing skin... (not processed: message from valid local sender) --> RV-List message posted by: "Matt Johnson" Anyone had a problem with the leading edge curve on the fuel tanks not exactly maching the leading edge of the other wing skin? It is very slight difference, but there is definitly a difference. The leading edge on the feul tank sticks out a little further (about 1/8th inch) on the curve. Any suggestions or feedback? - Matt ________________________________ Message 11 ____________________________________ Time: 01:30:45 PM PST US From: Scott Farner Subject: Re: RV-List: leading edge of pre-fab tanks not matching wing skin... (not processed: message from valid local sender) --> RV-List message posted by: Scott Farner Mine stuck out a little when I first fitted them, but after I tightened everything down, the fit is almost perfect with the fuel tank sticking out about 1/32 on the very front of the leading edge (for about half an inch). It definitely took a little muscle to get the tank in, and the spar screws will pull the tank down a smidge. -- Scott www.scottfarner.com RV-7A Wings On Apr 7, 2005 12:52 PM, Matt Johnson wrote: > --> RV-List message posted by: "Matt Johnson" > > Anyone had a problem with the leading edge curve on the fuel tanks not exactly maching the leading edge of the other wing skin? It is very > slight difference, but there is definitly a difference. The leading edge on the feul tank sticks out a little further (about 1/8th inch) on the > curve. Any suggestions or feedback? > > - Matt > > > ________________________________ Message 12 ____________________________________ Time: 01:58:26 PM PST US From: "Phil Sisson, Litchfield Aerobatic Club" Subject: Re: RV-List: leading edge of pre-fab tanks not matching wing skin... (not processed: message from valid local sender) --> RV-List message posted by: "Phil Sisson, Litchfield Aerobatic Club" Matt Johnson wrote: >--> RV-List message posted by: "Matt Johnson" > >Anyone had a problem with the leading edge curve on the fuel tanks not exactly maching the leading edge of the other wing skin? It is very >slight difference, but there is definitly a difference. The leading edge on the feul tank sticks out a little further (about 1/8th inch) on the >curve. Any suggestions or feedback? > >- Matt > >mine did. I guess it is because of the pro-seal. I used a lot of proseal.You might take an edgeing tool of some kind and try to bend it down just a bit with the tank off, but this is going to be hard to do in a curve. I had made my mind up that I was going to add some filler before I paint it. But now that I have been flying it, It flys so good that I dont notice it when I look at it.............. hee haa > > >Phil in Illinois > > ________________________________ Message 13 ____________________________________ Time: 02:28:17 PM PST US skin... (not processed: message from valid local sender) Subject: Re: RV-List: leading edge of pre-fab tanks not matching wing skin... (not processed: message from valid local sender) From: "Jamie Painter" --> RV-List message posted by: "Jamie Painter" Matt, This is unfortunately a very common problem. I had the same issue. I'm assuming that your tanks are sealed and riveted. One cause of this problem can be the outboard-most bracket having too much sealant between it and the baffle. My problem turned out to be not really a problem at all. I was trying to make the tank fit without bolting it on through the spar. Once I put the bolts in (specifically the outboard-most bolts), the leading edges fell into place nicely. Also, make sure that there's no sag in the skeleton, as this has caused many alignment problems as well. For more info...search the archives for "tank & LE & alignment". There's a ton of stuff in there. Hope this helps, Jamie -- Jamie D. Painter RV-7A fuselage N622JP (reserved) http://rv.jpainter.org ________________________________ Message 14 ____________________________________ Time: 04:05:35 PM PST US From: Subject: RV-List: Wheel pants mounting --> RV-List message posted by: Greetings. Im a newby hip-deep in a RV-7A project that was well along before the previous builder passed away. Anywho, am mounting wheel pants and trying to stay true to the manual as best I can. I established a 1-inch clearance on top of my 14-inch tires using a wood block, but with this clearance, I do not get the 8+ inches specified in the plans, as measured from the ground up to the midpoint of the trailing edge on the aft portion of the wheel pant, and also on the other end, from the ground up to the nose of the front portion of the fairing. Im off around 3/4 of an inch, and I have the plane leveled and jacked up as required. Im thinking that the big picture is to get the wheel pant with the proper clearance from the top of the tire, and also lined up with the airflow - i.e. level! I think Ive done this, as the distance from the nose of the wheel pant to the ground is the same as the distnace from the center of the trailing edge to the ground. This would lead me to not worry too much about the 3/4 inch discrepancy from the plans. Would feel better if someone would agree with me though....Hope I described things well enough for you all to follow along. regards Erich Weaver ________________________________ Message 15 ____________________________________ Time: 04:11:36 PM PST US From: RVer273sb@aol.com Subject: Re: RV-List: Lightspeed vs. E/P-Mag --> RV-List message posted by: RVer273sb@aol.com I have seen a smoother engine, a lower smoother idle and a drop in fuel burn. The plus ib there is no stinking big black box th find a place for. It is all self contained! From the 22 hrs I have operated this system I wolud say there is a slight increase in rpm at takeoff and in cruise. Stewart RV-4 Colorado ________________________________ Message 16 ____________________________________ Time: 04:28:22 PM PST US From: MLWynn@aol.com Subject: Re: RV-List: Reusing nuts? --> RV-List message posted by: MLWynn@aol.com Thanks, everyone. I suppose the dollar or so for four nuts is definitely worth the reduction in worry. Will do. Regards, Michael Wynn RV8 Empennage ________________________________ Message 17 ____________________________________ Time: 04:30:13 PM PST US From: MLWynn@aol.com Subject: Re: RV-List: Reusing nuts? --> RV-List message posted by: MLWynn@aol.com As a side question, do many of you add lock-tite or similar to these sorts of nuts and bolts? Regards, Michael Wynn RV-8 Empennage ________________________________ Message 18 ____________________________________ Time: 05:26:33 PM PST US From: "Alex Peterson" Subject: RE: RV-List: Gascolater --> RV-List message posted by: "Alex Peterson" > Hi Dean- > > I agree that gascolators are of somewhat limited value in > general, but also feel that they are relatively good at > catching water. Having less than fond memories of flush fuel > caps and rainy days, I elected to keep one in my system. If > the AFP filter will in fact stop water, it will also take a > tiny fraction of the capacity of the gascolator to plug it. > If it doesn't stop water, then it's ineffective in this role. > In either case, the gascolator gets drained each flight, or > at least each fill-up. The filter gets cleaned once a year. > As far as being an impediment to fuel flow, I have 2 fuel > pumps and no anecdotal evidence to support that being a valid > concern. The AFP filter will not catch water, but with FI, it is really not that important. If an ounce of water were to pass through the system at full power, the power loss would be for about 2 seconds, and, an ounce is a lot of water. Carbs are a different matter - water can cause long term power loss by not passing through the jets. I sump the tanks when appropriate. The designer of the AFP system recommends using only his filter and not a gascolator. Experimentals - do what you choose, but use caution in fuel system design. Alex Peterson RV6-A 608 hours Maple Grove, MN http://www.home.earthlink.net/~alexpeterson/ ________________________________ Message 19 ____________________________________ Time: 06:04:43 PM PST US From: Mark Grieve Subject: RV-List: Use of Lock-tite? --> RV-List message posted by: Mark Grieve Michael, I don't recall mention of Lock-tite in the Hardware and Fasteners class at A&P school. The product has many useful applications but I can't think of any that involve airplanes. (I'll just issue an "I stand corrected." statement right now as someone is sure to give an example. Thank you for keeping me honest.) Instead, we use a variety of other means to safety nuts, bolts, screws, turnbuckles or anything that might work loose. Nylon lock nuts, all metal lock nuts, castle nuts with cotter pins, safety wire through drilled bolt heads and jam nuts are the best examples. There is a book that you may wish to pick up. Standard Aircraft Handbook by Aero ISBN0-8306-8634-7 Your local book store can order it for you or you might find one it Ebay. It is packed full of useful information and I recommend it for a new builder. I even recommend it to veteran builders. Mark 7 empanage MLWynn@aol.com wrote: >--> RV-List message posted by: MLWynn@aol.com > >As a side question, do many of you add lock-tite or similar to these sorts >of nuts and bolts? > >Regards, > >Michael Wynn >RV-8 Empennage > > ________________________________ Message 20 ____________________________________ Time: 06:23:02 PM PST US From: "Vincent Welch" Subject: RV-List: MP --> RV-List message posted by: "Vincent Welch" For those of you that are flying constant speed props: What MP settings are you using in the pattern? What about final approach? How about climb and cruise decent? Vince RV-8A IO-360A1A ________________________________ Message 21 ____________________________________ Time: 08:00:38 PM PST US Subject: RE: RV-List: MP From: "Stewart, Michael (ISS Atlanta)" --> RV-List message posted by: "Stewart, Michael (ISS Atlanta)" Pattern final, 16 13ish? What ever feels right. The only time I really pay attention is shooting an approach and I do that at 16 which gives me a good 90kts and 500ft per min decent Cruise to the wall at anything above 3k' Decent I usually leave it where it is and take the rpm to 2000~1900 This is all totally subjective and there are too many variables to really come up with any numbers. A MP gauge is not necessary to do any of the items listed above well. Fly your airspeed and forget the MP gauge. Cheers Mike Do not archive -----Original Message----- From: owner-rv-list-server@matronics.com [mailto:owner-rv-list-server@matronics.com] On Behalf Of Vincent Welch Subject: RV-List: MP --> RV-List message posted by: "Vincent Welch" For those of you that are flying constant speed props: What MP settings are you using in the pattern? What about final approach? How about climb and cruise decent? Vince RV-8A IO-360A1A ________________________________ Message 22 ____________________________________ Time: 08:07:18 PM PST US Subject: RV-List: [ Mani Ravee ] : New Email List Photo Share Available! From: Email List Photo Shares --> RV-List message posted by: Email List Photo Shares A new Email List Photo Share is available: Poster: Mani Ravee Lists: RV-List,RV10-List Subject: Touch up spray kit http://www.matronics.com/photoshare/maniravee@sbcglobal.net.04.07.2005/index.html o Main Photo Share Index http://www.matronics.com/photoshare o Submitting a Photo Share If you wish to submit a Photo Share of your own, please include the following information along with your email message and files: 1) Email List or Lists that they are related to: 2) Your Full Name: 3) Your Email Address: 4) One line Subject description: 5) Multi-line, multi-paragraph description of topic: 6) One-line Description of each photo or file: Email the information above and your files and photos to: pictures@matronics.com ________________________________ Message 23 ____________________________________ Time: 08:09:35 PM PST US Subject: RV-List: [ David McNeill ] : New Email List Photo Share Available! From: Email List Photo Shares --> RV-List message posted by: Email List Photo Shares A new Email List Photo Share is available: Poster: David McNeill Lists: RV-List,RV10-List Subject: O540 specs http://www.matronics.com/photoshare/dlm34077@cox.net.04.07.2005/index.html o Main Photo Share Index http://www.matronics.com/photoshare o Submitting a Photo Share If you wish to submit a Photo Share of your own, please include the following information along with your email message and files: 1) Email List or Lists that they are related to: 2) Your Full Name: 3) Your Email Address: 4) One line Subject description: 5) Multi-line, multi-paragraph description of topic: 6) One-line Description of each photo or file: Email the information above and your files and photos to: pictures@matronics.com ________________________________ Message 24 ____________________________________ Time: 08:38:48 PM PST US From: "RV6 Flyer" Subject: RE: RV-List: MP --> RV-List message posted by: "RV6 Flyer" Vince: About 14" in the pattern. Varies from 13 - 15. Decent is typically a 200 RPM reduction and maintain MP on the way down. Typically I cannot get more than 21 - 22" at altitude. A 500 FPM decent is 2,100 and 22 inches. Maintain the same MP all the way down by pulling the throttle back everytime it rises 1/2". After coming over the Mountains north of where I am based, I am typically at 9,500 msl and need to get down to 2,240 pattern. If I am not slowed down below 5,000 and 160 Kts, 8 miles out, I pull the MP back to 15. Lots of trials during test flying. A test flight maneuver is prop all the way forward, throttle all the way back, nose 45 degree down, ASI - 180 KIAS, VSI = 4,000 FPM down. The same 15" in the pattern will give 2,000 FPM down at 125 KIAS. Gary A. Sobek "My Sanity" RV-6 N157GS O-320 Hartzell, 1,649 + Flying Hours So. CA, USA http://SoCAL_WVAF.rvproject.com ----Original Message Follows---- From: "Vincent Welch" Subject: RV-List: MP --> RV-List message posted by: "Vincent Welch" For those of you that are flying constant speed props: What MP settings are you using in the pattern? What about final approach? How about climb and cruise decent? Vince RV-8A IO-360A1A ________________________________ Message 25 ____________________________________ Time: 08:39:28 PM PST US From: "Tom Gummo" Subject: Re: RV-List: [ David McNeill ] : New Email List Photo Share Available! --> RV-List message posted by: "Tom Gummo" Anybody else have problems open these files. Tom Gummo ----- Original Message ----- From: "Email List Photo Shares" Subject: RV-List: [ David McNeill ] : New Email List Photo Share Available! > --> RV-List message posted by: Email List Photo Shares > > > > A new Email List Photo Share is available: > > Poster: David McNeill > > Lists: RV-List,RV10-List > > Subject: O540 specs > > > http://www.matronics.com/photoshare/dlm34077@cox.net.04.07.2005/index.html > > > o Main Photo Share Index > > http://www.matronics.com/photoshare > > o Submitting a Photo Share > > If you wish to submit a Photo Share of your own, please include the > following information along with your email message and files: > > 1) Email List or Lists that they are related to: > 2) Your Full Name: > 3) Your Email Address: > 4) One line Subject description: > 5) Multi-line, multi-paragraph description of topic: > 6) One-line Description of each photo or file: > > Email the information above and your files and photos to: > > pictures@matronics.com > > > ________________________________ Message 26 ____________________________________ Time: 08:42:03 PM PST US From: Vanremog@aol.com Subject: Re: RV-List: Reusing nuts? --> RV-List message posted by: Vanremog@aol.com In a message dated 4/7/2005 3:44:17 P.M. Pacific Daylight Time, mrobert569@hotmail.com writes: You can get away with using the same nylock nuts provided that the nylon insert still has its holding power. BUT.....for critical flight controls like you are talking I don't recommend it, especially considering the small cost of a nylock nut. =================================== Actually, for flight controls I like using the belt and suspenders approach, nyloc castle nuts that ACS sells and cotter pins. They're not cheap, but if a pin ever falls out in flight you still have the nyloc. GV (RV-6A N1GV O-360-A1A, C/S, Dual P-Mags, Flying 737hrs, Silicon Valley, CA) ________________________________ Message 27 ____________________________________ Time: 09:37:28 PM PST US From: Jim Oke Subject: Re: RV-List: Re Engine mount --> RV-List message posted by: Jim Oke Ah, the light comes on! An RV-6A engine mount does not have those vertical and horizontal tubes and so there is some "flex" in -6A mount that is not there in a -6 mount. "Fiddle and fit" thus looks like the answer in a taildragger 6. Jim Oke RV-6A Wpg, MB ----- Original Message ----- From: "Clive Whittfield" Subject: RV-List: Re Engine mount > --> RV-List message posted by: "Clive Whittfield" > > Many thanks to those who replied to my question about the engine mount. I > also put the question to Vans who recommended moving the mount up the > required 1/8" to provide bolt clearance. I have decided to do this and > all seems to be well so far. For those who suggested 'tweaking' the mount > to fit with cargo straps etc, I doubt this would work on this particular > mount as there are tubes welded vertically and horizontally between the > mounting holes that would not allow any movement (Dynafocal mount on plan > 50). This thing is solid! > > Clive Whittfield RV6 fuselage > > > ________________________________ Message 28 ____________________________________ Time: 09:37:28 PM PST US From: "Konrad L. Werner" Subject: Re: RV-List: [ David McNeill ] : New Email List Photo Share Available! --> RV-List message posted by: "Konrad L. Werner" I guess not, based on response so far. They opened just fine for me. do not archive ----- Original Message ----- From: Tom Gummo To: rv-list@matronics.com Sent: Thursday, April 07, 2005 9:36 PM Subject: Re: RV-List: [ David McNeill ] : New Email List Photo Share Available! --> RV-List message posted by: "Tom Gummo" Anybody else have problems open these files. Tom Gummo ----- Original Message ----- From: "Email List Photo Shares" To: "Email List Photo Shares" Subject: RV-List: [ David McNeill ] : New Email List Photo Share Available! > --> RV-List message posted by: Email List Photo Shares > > > > A new Email List Photo Share is available: > > Poster: David McNeill > > Lists: RV-List,RV10-List > > Subject: O540 specs > > > http://www.matronics.com/photoshare/dlm34077@cox.net.04.07.2005/index.html > > > o Main Photo Share Index > > http://www.matronics.com/photoshare > > o Submitting a Photo Share > > If you wish to submit a Photo Share of your own, please include the > following information along with your email message and files: > > 1) Email List or Lists that they are related to: > 2) Your Full Name: > 3) Your Email Address: > 4) One line Subject description: > 5) Multi-line, multi-paragraph description of topic: > 6) One-line Description of each photo or file: > > Email the information above and your files and photos to: > > pictures@matronics.com > > > ________________________________ Message 29 ____________________________________ Time: 11:20:55 PM PST US From: Vanremog@aol.com Subject: Re: RV-List: I Like my P-Mags (early report) --> RV-List message posted by: Vanremog@aol.com I know that many are interested in hearing reports from those of us who have converted from original magnetos to the E-Mag and P-Mag electronic ignitions. I have just completed the retrofit of two P-Mags, replacing the original Slick magnetos on my O-360-A1A, new in 1997. I have only one half-hour flight on my dual P-Mags last Saturday on which to base my initial observations. Also be advised that I installed a new ignition harness and new plugs (REM37BY gapped at .030" replacing REM38E gapped at .019") at the same time. I installed two P-Mags because I like the full redundancy they provide and I fly over the pointy stuff a lot. The system installed was about 1 lb lighter than the system it replaced with the moment arm being 42". The system and wiring was simple to install and there are only minor things that I would add to the installation manual. One change I would recommend is the use of the larger gaskets (with upper and lower ears that also encompass the studs) rather than using the smaller (ring only) gaskets that were provided with the ignitions. The drive gear that is available from E-Mag appears to be a high quality part and is needed if you originally had a impulse coupled magneto on one side. The ignition harness wires were a little short for my liking. The P-Mag system for Constant speed prop use requires a Manifold Pressure source from the engine. So far, my impression is that this is a very good performing ignition system as far as engine smoothness is concerned. Now, the four cylinder Lycomings have seldom been accused of being smooth running engines and the fixed 25 degree BTDC advance has never fostered quick changes in throttle position. Having said that, my O-360 was dynamically balanced by Dave Morss at time zero, has been running exceptionally well as flat fours go and my oil analyses (originally Howard Fenton and now done by Blackstone Labs) since day one have all been outstanding. With the new P-Mags, the engine felt much much smoother during acceleration, cruise and deceleration than it ever had with the magneto ignitions. The engine also takes throttle much better. Engine CHT, EGT and oil temps remain basically unchanged but it seems that the engine runs stronger and spins up readily. I'm getting 185 mph at 23 square burning 9.5 gph at 5000 ft MSL. I'm currently getting a little ignition noise in the radio and Brad Dement at E-Mag has advised me to perform some easy checks this weekend and get back to him with what I've found. I will be putting more time on the plane this weekend and will provide any additional info as I get it. GV (RV-6A N1GV O-360-A1A, C/S, Dual P-Mags, Flying 737hrs, Silicon Valley, CA)