---------------------------------------------------------- RV-List Digest Archive --- Total Messages Posted Sun 03/06/05: 39 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 01:37 AM - (no subject) (PASSPAT@aol.com) 2. 06:27 AM - Fw: eMachineShop (Tom & Cathy Ervin) 3. 06:43 AM - Re: EFIS Lite (Bob C.) 4. 06:50 AM - Rivet source? (David Burton) 5. 06:58 AM - Re: Rivet source? (Dan Checkoway) 6. 07:04 AM - Re: Rivet source? (Brian Kraut) 7. 07:33 AM - Re: eMachineShop (Alison and Neil) 8. 08:03 AM - Vans 5 point seat belts (Bobby Hester) 9. 08:18 AM - Lightspeed ign. with aft battery (Paul Danclovic) 10. 08:31 AM - Re: Vans 5 point seat belts (rveighta) 11. 09:00 AM - Re: Major or Minor Modification for electronic () 12. 09:12 AM - Re: magnetometer in an RV-8? (Charlie Kuss) 13. 09:41 AM - Re: Vans 5 point seat belts (Jim Thorne) 14. 09:54 AM - Re: Vans 5 point seat belts (Brian Denk) 15. 10:09 AM - Re: Vans 5 point seat belts (sarg314) 16. 10:13 AM - Re: Vans 5 point seat belts (Hopperdhh@aol.com) 17. 10:56 AM - Re: Vans 5 point seat belts (Helming, L R & K L) 18. 11:48 AM - new goodies from Trio Avionics (Sam Buchanan) 19. 11:53 AM - Re: magnetometer in an RV-8? (Kevin Horton) 20. 12:00 PM - Re: magnetometer in an RV-8? (luckymacy@comcast.net (lucky)) 21. 12:09 PM - Re: new goodies from Trio Avionics (Mickey Coggins) 22. 01:20 PM - Re: magnetometer in an RV-8? (Sam Buchanan) 23. 01:59 PM - Re: magnetometer in an RV-8? (Bill VonDane) 24. 03:42 PM - Re: magnetometer in an RV-8? (Bill VonDane) 25. 03:55 PM - Re: Major or Minor Modification for electronic (RVer273sb@aol.com) 26. 04:07 PM - governor oil line (Don/Marcia Piermattei) 27. 04:23 PM - Re: magnetometer in an RV-8? (Kevin Horton) 28. 04:23 PM - Re: Major or Minor Modification for electronic (John) 29. 04:52 PM - Re: Major or Minor Modification for electronic (RVer273sb@aol.com) 30. 04:55 PM - Re: new goodies from Trio Avionics (Jeff Point) 31. 05:35 PM - Re: Major or Minor Modification for electronic (Ed Anderson) 32. 05:56 PM - Re: Major or Minor Modification for electronic ignitions? (Mike Robertson) 33. 06:13 PM - Re: new goodies from Trio Avionics (Stein Bruch) 34. 06:26 PM - Re: magnetometer in an RV-8? (Jim Jewell) 35. 07:01 PM - Re: new goodies from Trio Avionics (RV Builder (Michael Sausen)) 36. 07:13 PM - Re: new goodies from Trio Avionics (Stein Bruch) 37. 07:23 PM - Re: new goodies from Trio Avionics (Sam Buchanan) 38. 08:08 PM - Re: new goodies from Trio Avionics (Stein Bruch) 39. 08:42 PM - Re: magnetometer in an RV-8? (Bill VonDane) ________________________________ Message 1 _____________________________________ Time: 01:37:52 AM PST US From: PASSPAT@aol.com Subject: RV-List: (no subject) --> RV-List message posted by: PASSPAT@aol.com Just a line on exp-aircraft IFR AC-20-27-F para 17 for IFR you need to meet the requirments of 91.205(b) Pat ________________________________ Message 2 _____________________________________ Time: 06:27:45 AM PST US From: "Tom & Cathy Ervin" Subject: Fw: RV-List: eMachineShop --> RV-List message posted by: "Tom & Cathy Ervin" ----- Original Message ----- From: "Tom & Cathy Ervin" Subject: Re: RV-List: eMachineShop > Neil, It would be great if someone would design a better FAB Carb Air > Cleaner Base. Making one from scratch just to have them crack at about 400 > Hrs. is a pain! > > Tom in Ohio > ----- Original Message ----- > From: "Alison and Neil" > To: > Sent: Saturday, March 05, 2005 10:08 PM > Subject: RV-List: eMachineShop > > >> --> RV-List message posted by: Alison and Neil >> >> >> I need to set the record straight on eMachineShop. I posted that the part >> I designed was going to cost $1,720.00.That is wrong. That was the price >> for 100! I didn't notice that the default quantity on the order form was >> 100. The actual price for 1 part was about $155.00 and for 10 about >> $320.00 plus about $7 for packing and shipping. The time estimate was >> about 29 days or 37 days if you wanted it anodized. The extra charge for >> anodizing was about $40 weather you ordered 1 or 10 parts. I have never >> drawn anthing on CAD before and had the part drawn and a price and time >> estimate in under an hour. I think that is remarkable. I think price is >> very reasonable and although I had a few listers volunteer their services >> (Thanks!) I may try this company out of curiosity. I'll let you know how >> it goes. >> >> Neil McLeod >> RV-7 >> Bisbee, AZ >> >> >> >> >> >> >> >> > ________________________________ Message 3 _____________________________________ Time: 06:43:46 AM PST US From: "Bob C. " Subject: Re: RV-List: EFIS Lite --> RV-List message posted by: "Bob C. " I stand corrected what I meant to say is . . . There is little doubt in my mind that to "legally" file /G or fly IFR using GPS as you "primary means of navigation", you must have a TSO'd GPS, especially for the approach phase . . . but this also applies to the enroute phase. I'm sure most knew what I meant but it wasn't very clear . . . it was late after a long day! Regards, Bob On Sat, 5 Mar 2005 23:42:33 -0500, Brian Kraut wrote: > --> RV-List message posted by: "Brian Kraut" > > So no one confuses this, you don't need a GPS at all to fly IFR, just to > file as having GPS. There is no reason you can't fly IFR with just a VOR > and use the GPS as a backup. Obviously, you can't legally make a GPS > approach or legally use the GPS to fly a direct route without anything else > to guide you there. > > Brian Kraut > Engineering Alternatives, Inc. > www.engalt.com > > -----Original Message----- > From: owner-rv-list-server@matronics.com > [mailto:owner-rv-list-server@matronics.com]On Behalf Of Bob C. > To: rv-list@matronics.com > Subject: Re: RV-List: EFIS Lite > > --> RV-List message posted by: "Bob C. " > > There is little doubt in my mind that to "legally" file/fly IFR you > must have a TSO'd GPS, especially for the approach phase . . . but it > also applies to the enroute phase. > > Regards, > Bob > > On Sat, 5 Mar 2005 12:07:43 -0600, Stein Bruch wrote: > > --> RV-List message posted by: "Stein Bruch" > > > > Totally agree - fair point. The AC's and various guidelines were written > > for a reason, mainly safety. > > > > Cheers, > > Stein > > > > Do not Archive > > > > -----Original Message----- > > From: owner-rv-list-server@matronics.com > > [mailto:owner-rv-list-server@matronics.com]On Behalf Of Kevin Horton > > To: rv-list@matronics.com > > Subject: RE: RV-List: EFIS Lite > > > > --> RV-List message posted by: Kevin Horton > > > > Just because the FAA isn't watching doesn't mean you should ignore > > their "requirements". AC20-138A and TSO-C129 still apply, even if > > you are doing the work yourself. > > > > Compliance to TSO-C129 is important, as it requires that the GPS have > > a Receiver Autonomous Integrity Monitoring (RAIM) capability, which > > allows the GPS to detect when it is receiving bad info from a > > satellite. Without RAIM, bad info can cause a significant position > > error, which is OK for VFR ops, but a bad thing if you are in cloud > > trying to shoot an approach. > > > > Kevin Horton > > > > At 21:06 -0600 4/3/05, you wrote: > > >--> RV-List message posted by: "Stein Bruch" > > > > > >Re-Read Mike S's previous post. It really doesn't matter what the FAA > > >inspector or DAR thinks when they are giving you your aiworthiness > > >certificae. The fact of the matter is that you don't receive an "IFR > > >Certification" for your homebuilt aircraft, rather a set of operating > > >limitations pertinent to IFR flight. Check the archives, this has been > > >hashed and re-hashed a whole bunch of times. > > > > > >Oh, I better clarify...I'm not sure how Canada handles things, so don't > > take > > >the above statements as global rules. > > > > > >Just my 2 cents as usual! > > > > > >Cheers, > > >Stein. > > > > > > > ________________________________ Message 4 _____________________________________ Time: 06:50:31 AM PST US From: "David Burton" Subject: RV-List: Rivet source? --> RV-List message posted by: "David Burton" I need a handful (about 20) AN470 5-11 rivets, something Van doesn't carry. The small aviation outlet in town doesn't carry them either. Any suggestions for a source? Since I need a couple of dollars worth, a company with a $25.00 minimum isn't going to work well for me... Thanks! ________________________________ Message 5 _____________________________________ Time: 06:58:40 AM PST US From: "Dan Checkoway" Subject: Re: RV-List: Rivet source? --> RV-List message posted by: "Dan Checkoway" Try: http://www.gen-aircraft-hardware.com These guys have just about everything. )_( Dan RV-7 N714D http://www.rvproject.com ----- Original Message ----- From: "David Burton" Subject: RV-List: Rivet source? > --> RV-List message posted by: "David Burton" > > I need a handful (about 20) AN470 5-11 rivets, something Van doesn't carry. > The small aviation outlet in town doesn't carry them either. Any > suggestions for a source? Since I need a couple of dollars worth, a company > with a $25.00 minimum isn't going to work well for me... > > Thanks! > > ________________________________ Message 6 _____________________________________ Time: 07:04:06 AM PST US From: "Brian Kraut" Subject: RE: RV-List: Rivet source? --> RV-List message posted by: "Brian Kraut" Neither Aircraft Spruce or Wicks have a minimum. Brian Kraut Engineering Alternatives, Inc. www.engalt.com -----Original Message----- From: owner-rv-list-server@matronics.com [mailto:owner-rv-list-server@matronics.com]On Behalf Of David Burton Subject: RV-List: Rivet source? --> RV-List message posted by: "David Burton" I need a handful (about 20) AN470 5-11 rivets, something Van doesn't carry. The small aviation outlet in town doesn't carry them either. Any suggestions for a source? Since I need a couple of dollars worth, a company with a $25.00 minimum isn't going to work well for me... Thanks! ________________________________ Message 7 _____________________________________ Time: 07:33:58 AM PST US From: Alison and Neil Subject: Re: RV-List: eMachineShop --> RV-List message posted by: Alison and Neil I've been thinking about that too. I think on mine I'll put a doubler on it and possibly a brace up to the sump. ----- Original Message ----- From: "Tom & Cathy Ervin" Subject: Fw: RV-List: eMachineShop > --> RV-List message posted by: "Tom & Cathy Ervin" > > > ----- Original Message ----- > From: "Tom & Cathy Ervin" > To: > Subject: Re: RV-List: eMachineShop > > >> Neil, It would be great if someone would design a better FAB Carb Air >> Cleaner Base. Making one from scratch just to have them crack at about >> 400 >> Hrs. is a pain! >> >> Tom in Ohio >> ----- Original Message ----- >> From: "Alison and Neil" >> To: >> Sent: Saturday, March 05, 2005 10:08 PM >> Subject: RV-List: eMachineShop >> >> >>> --> RV-List message posted by: Alison and Neil >>> >>> >>> I need to set the record straight on eMachineShop. I posted that the >>> part >>> I designed was going to cost $1,720.00.That is wrong. That was the price >>> for 100! I didn't notice that the default quantity on the order form was >>> 100. The actual price for 1 part was about $155.00 and for 10 about >>> $320.00 plus about $7 for packing and shipping. The time estimate was >>> about 29 days or 37 days if you wanted it anodized. The extra charge for >>> anodizing was about $40 weather you ordered 1 or 10 parts. I have never >>> drawn anthing on CAD before and had the part drawn and a price and time >>> estimate in under an hour. I think that is remarkable. I think price is >>> very reasonable and although I had a few listers volunteer their >>> services >>> (Thanks!) I may try this company out of curiosity. I'll let you know how >>> it goes. >>> >>> Neil McLeod >>> RV-7 >>> Bisbee, AZ >>> >>> >>> >>> >>> >>> >>> >>> >> > > > ________________________________ Message 8 _____________________________________ Time: 08:03:13 AM PST US From: Bobby Hester Subject: RV-List: Vans 5 point seat belts --> RV-List message posted by: Bobby Hester Anyone have pictures of the Vans 5 point seat belts? The catalog says they have aluminum hardware and that the 4 point selt belts have steel hardware and I guess are crome plated. I've seen those but don't recall seeing any with aluminum hardware. I'm thinking about ordering Vans navy blue 5 point seltbelts, any reason not to? -- Surfing the Web from Hopkinsville, KY Visit my web site at: http://www.geocities.com/hester-hoptown/RVSite/ RV7A Slowbuild wings-QB Fuse :-) ________________________________ Message 9 _____________________________________ Time: 08:18:47 AM PST US From: "Paul Danclovic" Subject: RV-List: Lightspeed ign. with aft battery --> RV-List message posted by: "Paul Danclovic" Has anybody done this on a -8? The instructions say to connect the power and ground directly to the battery terminals, bypassing any bus or master solenoid. This would envolve either unsoldering the provided connector to the module and installing longer shielded wires or making a shielded splice as the leads are only about 5 feet long. Is bypassing the main bus to ensure ignition if the master solenoid fails or is it an ignition noise issue? thanks! Paul Danclovic Carver MN RV-8A ________________________________ Message 10 ____________________________________ Time: 08:31:20 AM PST US From: rveighta Subject: Re: RV-List: Vans 5 point seat belts --> RV-List message posted by: rveighta Bobby, I have a set of 5 point seat belts from Van's for our RV-8 and all hardware is chrome plated steel. The price is right for Van's belts and they appear to be high quality. Walt Shipley RV-8A, Flying RV-8 finishing -----Original Message----- From: Bobby Hester Subject: RV-List: Vans 5 point seat belts --> RV-List message posted by: Bobby Hester Anyone have pictures of the Vans 5 point seat belts? The catalog says they have aluminum hardware and that the 4 point selt belts have steel hardware and I guess are crome plated. I've seen those but don't recall seeing any with aluminum hardware. I'm thinking about ordering Vans navy blue 5 point seltbelts, any reason not to? -- Surfing the Web from Hopkinsville, KY Visit my web site at: http://www.geocities.com/hester-hoptown/RVSite/ RV7A Slowbuild wings-QB Fuse :-) ________________________________ Message 11 ____________________________________ Time: 09:00:53 AM PST US From: Subject: Re: RV-List: Major or Minor Modification for electronic --> RV-List message posted by: This question of Major Modification after phase I has come up before, and maybe we can get some more input. I do have some practical advise, but not the definitive word: > --> RV-List message posted by: "GV" Vanremog@aol.com > > Mike- > > When changing out the ignition system (OEM Slick magnetos) to electronic (two new > P- mags), must I or how do I approach the FAA or my DAR (Dave Morss)? > > Is this considered a major modification to my RV-6A and do I have to > take it back into testing mode? > > I expect to get the P-mag installation completed next week but want to ensure that all is > properly done paperwork wise and legal. What about installing a LASAR electronic ignition on a Piper. Do they re-certify the plane? (No) So what about experimental aircraft? We don't need or have STC's or 8110 forms. I am not sure this is black-n-white. The question is what paper work? Do you have to bring the FAA or DAR out? The aircraft is already certified. Does the mod make it a new aircraft type? (no) Major modifications need to be approved, but approved by whom? I say the builder (manufacture) can approve the modification. Right? Make the modification, log it and do the "return to service flight test" of no set time. Based on the judgment of the builder, the aircraft is deemed airworthy (safe). ANY COMMENTS? What about changes to Props, Fuel injection to Carb to HC pistons. Does this require a complete Phase one, re-certification? All these things, including electronic ignition are major mods, but I am not so sure the FAA needs to be notified or *cares? What about adding IFR or night capability later, post-phase I. INSURANCE: Now this is a different matter. I know modifications do have insurance ramifications. One builder in my area switched from Carb to FI. Had an off field landing after the Mod and the insurance company did not pay because he changed the configuration. (BTW the power loss was not a result of the FI mod!). How did the insurance company know. He told them. Where is there a detailed configuration/equipment list noted? How would an insurance company or the FAA for that matter know what you changed after certifying it? Where does it say you have Mags or Electronic ignition? I did get an insurance quote recently, and they do ask specifics about ignition, prop, as well as catch all questions. In the past I do not recall detailed questionnaires about equipment. ** I have heard a few guy's who have done mods and asked the FAA about "re-certifying." The FAA kept saying, "It's Experimental isnt it?" (wink-wink). Basically they did not want to hear about it, or they did not know what to say and had something in their eye. Ask the FAA. Call different FISDO across the country and get as many different answers. Good luck. My opinion is make the change, document it, test it, and make a return to service annotation in the logbook. If you have insurance notify them what you did and get it in writing, preferably before you do your first post mod flight. If some one has a AC, FAR regarding it, I have not found it. Cheers George --------------------------------- ________________________________ Message 12 ____________________________________ Time: 09:12:55 AM PST US From: Charlie Kuss Subject: Re: RV-List: magnetometer in an RV-8? --> RV-List message posted by: Charlie Kuss Glen, While ferrous metal is a problem for these units, moving ferrous metal is even worse. Unless I misunderstand where you are locating the unit, it seems to me that the elevator horns would be a problem. They are not small, stationary or very far (1 foot) away. What am I missing here??? Charlie Kuss >--> RV-List message posted by: "Glen Matejcek" > >Hi Bill- > >I (and BMA's tech rep) have put out magnetometers on the rear deck between >the HS spars on our -8's. This is a good locale due to the lack of ferrous >material in sufficient quantity to cause issues, and it is square with the >rest of the aircraft. As I understand it, and I'm no digital guru, the mag >really does need to be square with the airframe. It is a 3 dimensional >compass, and the brain box uses GPS lat /long to determine the local slope >of the magnetic lines of force. This data is then compared to the inertial >platform to 'back up' it's attitude solution. I think. Or recall. >Whatever. Bottom line, the magnetometers do need to be a square as >practical for the system to function optimally, as it was presented to me. > > >For demonstration sake, you can set up your E/L on the kitchen table and >pitch the E/L while leaving the mag flat on the table. The heading will >change, even tho the mag is immobile. Made a believer out of me.... > >FWIW, > >YMMV, > >Not valid where prohibited by law' > >and most certainly, do not archive! > >Glen Matejcek >aerobubba@earthlink.net > > ________________________________ Message 13 ____________________________________ Time: 09:41:50 AM PST US From: "Jim Thorne" Subject: Re: RV-List: Vans 5 point seat belts --> RV-List message posted by: "Jim Thorne" You might want to look at the below web site I just got my five point belts from them in the 2" harness size. Not chrome plated but a good price for the cam lock buckles. Good people to work with. Respond promptly to emails and took my order over the phone. Received the belts in two days. http://www.crowenterprizes.com./ Jim Thorne RV-7A QB CHD ________________________________ Message 14 ____________________________________ Time: 09:54:18 AM PST US From: "Brian Denk" Subject: Re: RV-List: Vans 5 point seat belts --> RV-List message posted by: "Brian Denk" >--> RV-List message posted by: "Jim Thorne" > >You might want to look at the below web site I just got my five point belts >from them in the 2" harness size. Not chrome plated but a good price for >the cam lock buckles. > >Good people to work with. Respond promptly to emails and took my order over >the phone. Received the belts in two days. >http://www.crowenterprizes.com./ > >Jim Thorne >RV-7A QB >CHD REALLY cool products! Great prices too. Thanks for the link. I'll be needing four sets for the -10 someday. Brian Denk RV8 N94BD RV10 '51 do not archive ________________________________ Message 15 ____________________________________ Time: 10:09:57 AM PST US From: sarg314 Subject: Re: RV-List: Vans 5 point seat belts --> RV-List message posted by: sarg314 I have them. They are very similar to the Cessna belts, if I recall correctly. >-----Original Message----- >From: Bobby Hester >To: RV-List >Subject: RV-List: Vans 5 point seat belts > >--> RV-List message posted by: Bobby Hester > >Anyone have pictures of the Vans 5 point seat belts? The catalog says >they have aluminum hardware and that the 4 point selt belts have steel >hardware and I guess are crome plated. I've seen those but don't recall >seeing any with aluminum hardware. > >I'm thinking about ordering Vans navy blue 5 point seltbelts, any reason >not to? > > > ________________________________ Message 16 ____________________________________ Time: 10:13:01 AM PST US From: Hopperdhh@aol.com Subject: Re: RV-List: Vans 5 point seat belts --> RV-List message posted by: Hopperdhh@aol.com Bobby, I agree with Walt that the quality is good. They are chromed steel, not aluminum. The crotch strap kit does have some aluminum, but only for the brackets that mount to the seat ribs. The only negative for me is that they are a little too short (the lap belts and the crotch strap). If you are above average size or want to carry a passenger who is, you may question them about that. Also IMHO, you definitely need the crotch strap as the mounting of the lap belt is too far aft (speaking of the RV-7 here) to hold you down into the seat. BTW mine is the deep blue color, too, and they are really nice. It goes great with the gray interior color. do not archive Dan Hopper Walton, IN RV-7A (Flying) In a message dated 3/6/05 11:31:58 A.M. US Eastern Standard Time, rveighta@earthlink.net writes: Bobby, I have a set of 5 point seat belts from Van's for our RV-8 and all hardware is chrome plated steel. The price is right for Van's belts and they appear to be high quality. Walt Shipley RV-8A, Flying RV-8 finishing -----Original Message----- From: Bobby Hester Subject: RV-List: Vans 5 point seat belts --> RV-List message posted by: Bobby Hester Anyone have pictures of the Vans 5 point seat belts? The catalog says they have aluminum hardware and that the 4 point selt belts have steel hardware and I guess are crome plated. I've seen those but don't recall seeing any with aluminum hardware. I'm thinking about ordering Vans navy blue 5 point seltbelts, any reason not to? ________________________________ Message 17 ____________________________________ Time: 10:56:54 AM PST US From: "Helming, L R & K L" Subject: Re: RV-List: Vans 5 point seat belts --> RV-List message posted by: "Helming, L R & K L" I got the 5 point crotch kit by vans installed. I like the way they will function but did not like the install. I'll get a picture or two today and send to you tonight. Larry ----- Original Message ----- From: "Bobby Hester" Subject: RV-List: Vans 5 point seat belts > --> RV-List message posted by: Bobby Hester > > Anyone have pictures of the Vans 5 point seat belts? The catalog says > they have aluminum hardware and that the 4 point selt belts have steel > hardware and I guess are crome plated. I've seen those but don't recall > seeing any with aluminum hardware. > > I'm thinking about ordering Vans navy blue 5 point seltbelts, any reason > not to? > > -- > Surfing the Web from Hopkinsville, KY > Visit my web site at: http://www.geocities.com/hester-hoptown/RVSite/ > RV7A Slowbuild wings-QB Fuse :-) > > > ________________________________ Message 18 ____________________________________ Time: 11:48:12 AM PST US From: Sam Buchanan Subject: RV-List: new goodies from Trio Avionics --> RV-List message posted by: Sam Buchanan ....just when I thought I was finished with my panel........ http://www.trioavionics.com/alt_hold.htm Sam Buchanan http://thervjournal.com ________________________________ Message 19 ____________________________________ Time: 11:53:17 AM PST US From: Kevin Horton Subject: Re: RV-List: magnetometer in an RV-8? --> RV-List message posted by: Kevin Horton Sure, the elevator moves quite a bit during manoeuvring flight, but do we really care how accurate our compass is while we are going over the top of a loop, or during a stall or a hard turn? How much difference in elevator position is there over the range of conditions in straight, 1 g flight? The worst case extremes would be approach speed, flaps down, forward CG and high speed, flaps up, aft CG. My RV isn't flying yet, so I don't know the answer to that question. But there might not be enough movement to make a significant difference. Kevin >--> RV-List message posted by: Charlie Kuss > >Glen, > While ferrous metal is a problem for these units, moving ferrous metal is >even worse. Unless I misunderstand where you are locating the unit, it >seems to me that the elevator horns would be a problem. They are not small, >stationary or very far (1 foot) away. What am I missing here??? >Charlie Kuss > >>--> RV-List message posted by: "Glen Matejcek" >> >>Hi Bill- >> >>I (and BMA's tech rep) have put out magnetometers on the rear deck between >>the HS spars on our -8's. This is a good locale due to the lack of ferrous >>material in sufficient quantity to cause issues, and it is square with the >>rest of the aircraft. As I understand it, and I'm no digital guru, the mag >>really does need to be square with the airframe. It is a 3 dimensional >>compass, and the brain box uses GPS lat /long to determine the local slope >>of the magnetic lines of force. This data is then compared to the inertial >>platform to 'back up' it's attitude solution. I think. Or recall. >>Whatever. Bottom line, the magnetometers do need to be a square as >>practical for the system to function optimally, as it was presented to me. >> >> >>For demonstration sake, you can set up your E/L on the kitchen table and >>pitch the E/L while leaving the mag flat on the table. The heading will >>change, even tho the mag is immobile. Made a believer out of me.... >> >>FWIW, >> >>YMMV, >> >>Not valid where prohibited by law' >> >>and most certainly, do not archive! >> >>Glen Matejcek > >aerobubba@earthlink.net >> > > ________________________________ Message 20 ____________________________________ Time: 12:00:36 PM PST US From: luckymacy@comcast.net (lucky) Subject: Re: RV-List: magnetometer in an RV-8? --> RV-List message posted by: luckymacy@comcast.net (lucky) there was enough of an effect with the GRT unit just being in the rear fuse with the rudder cables. Forget the bellcarank for the elevator. Worry about the rudder cables. Their electrical 'antennas' as far as the GRT engineer tells me. Wing tip is their preferred location. Strobe & power packs passed their test. -------------- Original message -------------- > --> RV-List message posted by: Kevin Horton > > Sure, the elevator moves quite a bit during manoeuvring flight, but > do we really care how accurate our compass is while we are going over > the top of a loop, or during a stall or a hard turn? > > How much difference in elevator position is there over the range of > conditions in straight, 1 g flight? The worst case extremes would > be approach speed, flaps down, forward CG and high speed, flaps up, > aft CG. My RV isn't flying yet, so I don't know the answer to that > question. But there might not be enough movement to make a > significant difference. > > Kevin > > >--> RV-List message posted by: Charlie Kuss > > > >Glen, > > While ferrous metal is a problem for these units, moving ferrous metal is > >even worse. Unless I misunderstand where you are locating the unit, it > >seems to me that the elevator horns would be a problem. They are not small, > >stationary or very far (1 foot) away. What am I missing here??? > >Charlie Kuss > > > >>--> RV-List message posted by: "Glen Matejcek" > >> > >>Hi Bill- > >> > >>I (and BMA's tech rep) have put out magnetometers on the rear deck between > >>the HS spars on our -8's. This is a good locale due to the lack of ferrous > >>material in sufficient quantity to cause issues, and it is square with the > >>rest of the aircraft. As I understand it, and I'm no digital guru, the mag > >>really does need to be square with the airframe. It is a 3 dimensional > >>compass, and the brain box uses GPS lat /long to determine the local slope > >>of the magnetic lines of force. This data is then compared to the inertial > >>platform to 'back up' it's attitude solution. I think. Or recall. > >>Whatever. Bottom line, the magnetometers do need to be a square as > >>practical for the system to function optimally, as it was presented to me. > >> > >> > >>For demonstration sake, you can set up your E/L on the kitchen table and > >>pitch the E/L while leaving the mag flat on the table. The heading will > >>change, even tho the mag is immobile. Made a believer out of me.... > >> > >>FWIW, > >> > >>YMMV, > >> > >>Not valid where prohibited by law' > >> > >>and most certainly, do not archive! > >> > >>Glen Matejcek > > >aerobubba@earthlink.net > >> > > > > > > > > > there was enough of an effect with the GRT unit just being in the rear fuse with the rudder cables. Forget the bellcarank for the elevator. Worry about the rudder cables. Their electrical 'antennas' as far as the GRT engineer tells me. Wing tip is their preferred location. Strobe power packs passed their test. -------------- Original message -------------- -- RV-List message posted by: Kevin Horton Sure, the elevator moves quite a bit during manoeuvring flight, but do we really care how accurate our compass is while we are going over the top of a loop, or during a stall or a hard turn? How much difference in elevator position is there over the range of conditions in straight, 1 g flight? The worst case extremes would be approach speed, flaps down, forward CG and high speed, flaps up, aft CG. My RV isn't flying yet, so I don't know the answer to that question. But there might not be enough movement to make a significant difference. Kevin -- RV-List message posted by: Charlie Kuss < BR> Glen, While ferrous metal is a problem for these units, moving ferrous metal is even worse. Unless I misunderstand where you are locating the unit, it seems to me that the elevator horns would be a problem. They are not small, stationary or very far (1 foot) away. What am I missing here??? Charlie Kuss -- RV-List message posted by: "Glen Matejcek" Hi Bill- I (and BMA's tech rep) have put out magnetometers on the rear deck between the HS spars on our -8's. This is a good locale due to the lack of ferrous material in sufficient quantity to cause issues, and it is square with the rest of the aircraft. As I understand it, and I'm no digital guru, the mag really does need to be square with the airframe. It is a 3 dimensional compass, and the brain box uses GPS lat /long to determine the local slope of the magnetic lines of force. This data is then compared to the inertial platform to 'back up' it's attitude solution. I think. Or recall. Whatever. Bottom line, the magnetometers do need to be a square as practical for the system to function optimally, as it was presented to me. For demonstration sake, you can set up your E/L on the kitchen table and pitch the E/L while leaving the mag flat on the table. The heading will change, even tho the mag is immobile. Made a believer out of me.... FWIW, YMMV, Not valid where prohibited by law' and most certainly, do not archive! &g t; Glen Matejcek aerobubba@earthlink.net ________________________________ Message 21 ____________________________________ Time: 12:09:55 PM PST US From: Mickey Coggins Subject: Re: RV-List: new goodies from Trio Avionics --> RV-List message posted by: Mickey Coggins Sam, I'm surprised you don't have a test unit yet! :-) These look sweet, don't they? Mickey Sam Buchanan wrote: > ....just when I thought I was finished with my panel........ > > http://www.trioavionics.com/alt_hold.htm > -- Mickey Coggins http://www.rv8.ch/ #82007 Wiring ________________________________ Message 22 ____________________________________ Time: 01:20:42 PM PST US From: Sam Buchanan Subject: Re: RV-List: magnetometer in an RV-8? --> RV-List message posted by: Sam Buchanan Kevin Horton wrote: > --> RV-List message posted by: Kevin Horton > > Sure, the elevator moves quite a bit during manoeuvring flight, but > do we really care how accurate our compass is while we are going over > the top of a loop, or during a stall or a hard turn? > > How much difference in elevator position is there over the range of > conditions in straight, 1 g flight? The worst case extremes would > be approach speed, flaps down, forward CG and high speed, flaps up, > aft CG. My RV isn't flying yet, so I don't know the answer to that > question. But there might not be enough movement to make a > significant difference. > > Kevin Excellent point, Kevin. The Dynon mag has worked fine on the forward end of the rear deck on my RV-6. And in case somebody suspects the BMA unit may be more sensitive, I used the same location successfully when BMA was using the ultra-high$$$$$$$ Honeywell magnetometer. May be some slight differences in the RV-8 vs the RV-6, but if the mag is located under the leading edge of the vertical stab, I think it will be fine. Sam Buchanan Sam Buchanan ________________________________ Message 23 ____________________________________ Time: 01:59:47 PM PST US From: "Bill VonDane" Subject: Re: RV-List: magnetometer in an RV-8? --> RV-List message posted by: "Bill VonDane" Kevin... good post... I guess my point is that if moving the elevators cause the compass to swing that must mean the compass is too close to the metal in the arms... Whether it's moving or not it's affecting it... Would you agree? -Bill ----- Original Message ----- From: "Kevin Horton" Subject: Re: RV-List: magnetometer in an RV-8? --> RV-List message posted by: Kevin Horton Sure, the elevator moves quite a bit during manoeuvring flight, but do we really care how accurate our compass is while we are going over the top of a loop, or during a stall or a hard turn? How much difference in elevator position is there over the range of conditions in straight, 1 g flight? The worst case extremes would be approach speed, flaps down, forward CG and high speed, flaps up, aft CG. My RV isn't flying yet, so I don't know the answer to that question. But there might not be enough movement to make a significant difference. Kevin >--> RV-List message posted by: Charlie Kuss > >Glen, > While ferrous metal is a problem for these units, moving ferrous metal > is >even worse. Unless I misunderstand where you are locating the unit, it >seems to me that the elevator horns would be a problem. They are not small, >stationary or very far (1 foot) away. What am I missing here??? >Charlie Kuss > >>--> RV-List message posted by: "Glen Matejcek" >> >>Hi Bill- >> >>I (and BMA's tech rep) have put out magnetometers on the rear deck between >>the HS spars on our -8's. This is a good locale due to the lack of >>ferrous >>material in sufficient quantity to cause issues, and it is square with the >>rest of the aircraft. As I understand it, and I'm no digital guru, the >>mag >>really does need to be square with the airframe. It is a 3 dimensional >>compass, and the brain box uses GPS lat /long to determine the local slope >>of the magnetic lines of force. This data is then compared to the >>inertial >>platform to 'back up' it's attitude solution. I think. Or recall. >>Whatever. Bottom line, the magnetometers do need to be a square as >>practical for the system to function optimally, as it was presented to me. >> >> >>For demonstration sake, you can set up your E/L on the kitchen table and >>pitch the E/L while leaving the mag flat on the table. The heading will >>change, even tho the mag is immobile. Made a believer out of me.... >> >>FWIW, >> >>YMMV, >> >>Not valid where prohibited by law' >> >>and most certainly, do not archive! >> >>Glen Matejcek > >aerobubba@earthlink.net >> > > ________________________________ Message 24 ____________________________________ Time: 03:42:07 PM PST US From: "Bill VonDane" Subject: Re: RV-List: magnetometer in an RV-8? --> RV-List message posted by: "Bill VonDane" I ended up putting mine in the tailcone, in the bay aft of the baggage compartment, right on the floor skin... I testing the location with a whiskey compass and neither the rudder cables or the strobe cable running back there had any effect... Hopefully this turns out to be a good location... -Bill ----- Original Message ----- From: "lucky" Subject: Re: RV-List: magnetometer in an RV-8? --> RV-List message posted by: luckymacy@comcast.net (lucky) there was enough of an effect with the GRT unit just being in the rear fuse with the rudder cables. Forget the bellcarank for the elevator. Worry about the rudder cables. Their electrical 'antennas' as far as the GRT engineer tells me. Wing tip is their preferred location. Strobe & power packs passed their test. -------------- Original message -------------- > --> RV-List message posted by: Kevin Horton > > Sure, the elevator moves quite a bit during manoeuvring flight, but > do we really care how accurate our compass is while we are going over > the top of a loop, or during a stall or a hard turn? > > How much difference in elevator position is there over the range of > conditions in straight, 1 g flight? The worst case extremes would > be approach speed, flaps down, forward CG and high speed, flaps up, > aft CG. My RV isn't flying yet, so I don't know the answer to that > question. But there might not be enough movement to make a > significant difference. > > Kevin > > >--> RV-List message posted by: Charlie Kuss > > > >Glen, > > While ferrous metal is a problem for these units, moving ferrous metal > > is > >even worse. Unless I misunderstand where you are locating the unit, it > >seems to me that the elevator horns would be a problem. They are not > >small, > >stationary or very far (1 foot) away. What am I missing here??? > >Charlie Kuss > > > >>--> RV-List message posted by: "Glen Matejcek" > >> > >>Hi Bill- > >> > >>I (and BMA's tech rep) have put out magnetometers on the rear deck > >>between > >>the HS spars on our -8's. This is a good locale due to the lack of > >>ferrous > >>material in sufficient quantity to cause issues, and it is square with > >>the > >>rest of the aircraft. As I understand it, and I'm no digital guru, the > >>mag > >>really does need to be square with the airframe. It is a 3 dimensional > >>compass, and the brain box uses GPS lat /long to determine the local > >>slope > >>of the magnetic lines of force. This data is then compared to the > >>inertial > >>platform to 'back up' it's attitude solution. I think. Or recall. > >>Whatever. Bottom line, the magnetometers do need to be a square as > >>practical for the system to function optimally, as it was presented to > >>me. > >> > >> > >>For demonstration sake, you can set up your E/L on the kitchen table and > >>pitch the E/L while leaving the mag flat on the table. The heading will > >>change, even tho the mag is immobile. Made a believer out of me.... > >> > >>FWIW, > >> > >>YMMV, > >> > >>Not valid where prohibited by law' > >> > >>and most certainly, do not archive! > >> > >>Glen Matejcek > > >aerobubba@earthlink.net > >> > > > > > there was enough of an effect with the GRT unit just being in the rear fuse with the rudder cables. Forget the bellcarank for the elevator. Worry about the rudder cables. Their electrical 'antennas' as far as the GRT engineer tells me. Wing tip is their preferred location. Strobe power packs passed their test. -------------- Original message -------------- -- RV-List message posted by: Kevin Horton Sure, the elevator moves quite a bit during manoeuvring flight, but do we really care how accurate our compass is while we are going over the top of a loop, or during a stall or a hard turn? How much difference in elevator position is there over the range of conditions in straight, 1 g flight? The worst case extremes would be approach speed, flaps down, forward CG and high speed, flaps up, aft CG. My RV isn't flying yet, so I don't know the answer to that question. But there might not be enough movement to make a significant difference. Kevin -- RV-List message posted by: Charlie Kuss < BR> Glen, While ferrous metal is a problem for these units, moving ferrous metal is even worse. Unless I misunderstand where you are locating the unit, it seems to me that the elevator horns would be a problem. They are not small, stationary or very far (1 foot) away. What am I missing here??? Charlie Kuss -- RV-List message posted by: "Glen Matejcek" Hi Bill- I (and BMA's tech rep) have put out magnetometers on the rear deck between the HS spars on our -8's. This is a good locale due to the lack of ferrous material in sufficient quantity to cause issues, and it is square with the rest of the aircraft. As I understand it, and I'm no digital guru, the mag really does need to be square with the airframe. It is a 3 dimensional compass, and the brain box uses GPS lat /long to determine the local slope of the magnetic lines of force. This data is then compared to the inertial platform to 'back up' it's attitude solution. I think. Or recall. Whatever. Bottom line, the magnetometers do need to be a square as practical for the system to function optimally, as it was presented to me. For demonstration sake, you can set up your E/L on the kitchen table and pitch the E/L while leaving the mag flat on the table. The heading will change, even tho the mag is immobile. Made a believer out of me.... FWIW, YMMV, Not valid where prohibited by law' and most certainly, do not archive! &g t; Glen Matejcek aerobubba@earthlink.net ________________________________ Message 25 ____________________________________ Time: 03:55:49 PM PST US From: RVer273sb@aol.com Subject: Re: RV-List: Major or Minor Modification for electronic --> RV-List message posted by: RVer273sb@aol.com Cover your self and do 10 hrs of phase one for the P-mag installation. The way I understand it is now you don't need a DAR of FAA. Put it in phase one and then put it back into phase two after the 10 hrs. Don't give the insurance people a way out of a claim Consider it a Major mod. Stewart, RV 4 in co. ________________________________ Message 26 ____________________________________ Time: 04:07:23 PM PST US From: "Don/Marcia Piermattei" Subject: RV-List: governor oil line --> RV-List message posted by: "Don/Marcia Piermattei" RV-List message posted by: Charlie Brame With reference to an 0-320 with a rear mounted governor and a constant speed prop: Is there any reason the prop governor oil line should not run over the top of the engine? I have used this line successfully in an O320 D2J. I believe it is a little shorter than going underneath. Inadvertanly posted this on the RV9 list yesterday Don Piermattei RV-9A N 192 DP Donald L. Piermattei DVM, PhD 5000 E County Rd 92 Carr, CO 80612 970/568-9047 Fax 970/568-7279 ________________________________ Message 27 ____________________________________ Time: 04:23:23 PM PST US From: Kevin Horton Subject: Re: RV-List: magnetometer in an RV-8? --> RV-List message posted by: Kevin Horton OK, I hadn't looked at it that way. You may have a point. I agonized over where to put the Dynon magnetic sensor in my RV-8, and eventually ended up with it hanging from the top of a bulkhead in halfway down the rear fuselage. It might not work that well when the canopy is open, but it was the best in-fuselage option I could think of. Kevin >--> RV-List message posted by: "Bill VonDane" > >Kevin... good post... > >I guess my point is that if moving the elevators cause the compass to swing >that must mean the compass is too close to the metal in the arms... Whether >it's moving or not it's affecting it... Would you agree? > >-Bill > > >----- Original Message ----- >From: "Kevin Horton" >To: >Subject: Re: RV-List: magnetometer in an RV-8? > > >--> RV-List message posted by: Kevin Horton > >Sure, the elevator moves quite a bit during manoeuvring flight, but >do we really care how accurate our compass is while we are going over >the top of a loop, or during a stall or a hard turn? > >How much difference in elevator position is there over the range of >conditions in straight, 1 g flight? The worst case extremes would >be approach speed, flaps down, forward CG and high speed, flaps up, >aft CG. My RV isn't flying yet, so I don't know the answer to that >question. But there might not be enough movement to make a >significant difference. > >Kevin > >>--> RV-List message posted by: Charlie Kuss >> >>Glen, >> While ferrous metal is a problem for these units, moving ferrous metal >> is >>even worse. Unless I misunderstand where you are locating the unit, it >>seems to me that the elevator horns would be a problem. They are not small, >>stationary or very far (1 foot) away. What am I missing here??? >>Charlie Kuss >> >>>--> RV-List message posted by: "Glen Matejcek" >>> >>>Hi Bill- >>> >>>I (and BMA's tech rep) have put out magnetometers on the rear deck between >>>the HS spars on our -8's. This is a good locale due to the lack of >>>ferrous >>>material in sufficient quantity to cause issues, and it is square with the >>>rest of the aircraft. As I understand it, and I'm no digital guru, the >>>mag >>>really does need to be square with the airframe. It is a 3 dimensional >>>compass, and the brain box uses GPS lat /long to determine the local slope >>>of the magnetic lines of force. This data is then compared to the >>>inertial >>>platform to 'back up' it's attitude solution. I think. Or recall. >>>Whatever. Bottom line, the magnetometers do need to be a square as >>>practical for the system to function optimally, as it was presented to me. >>> >>> >>>For demonstration sake, you can set up your E/L on the kitchen table and >>>pitch the E/L while leaving the mag flat on the table. The heading will >>>change, even tho the mag is immobile. Made a believer out of me.... >>> >>>FWIW, >>> >>>YMMV, >>> >>>Not valid where prohibited by law' >>> >>>and most certainly, do not archive! >>> >>>Glen Matejcek >> >aerobubba@earthlink.net >>> > > > ________________________________ Message 28 ____________________________________ Time: 04:23:53 PM PST US From: "John" Subject: Re: RV-List: Major or Minor Modification for electronic --> RV-List message posted by: "John" That's correct IF, repeat IF, you have the "new" operating limitations...the older ones did not have the part that allows the builder to make major changes and go back into phase 1. Those older ones DID, repeat, DID, require another inspection from FAA or a DAR. Read your operating limitations to be certain. John ----- Original Message ----- From: Subject: Re: RV-List: Major or Minor Modification for electronic > --> RV-List message posted by: RVer273sb@aol.com > > Cover your self and do 10 hrs of phase one for the P-mag > installation. The way I understand it is now you don't need a DAR > of FAA. Put it in phase one and then put it back into phase two > after the 10 hrs. > Don't give the insurance people a way out of a claim > Consider it a Major mod. > > Stewart, RV 4 in co. > > > ________________________________ Message 29 ____________________________________ Time: 04:52:07 PM PST US From: RVer273sb@aol.com Subject: Re: RV-List: Major or Minor Modification for electronic --> RV-List message posted by: RVer273sb@aol.com I believe you can get a DAR or FAA to update the older limitations to the new ones. Stewart ________________________________ Message 30 ____________________________________ Time: 04:55:19 PM PST US From: Jeff Point Subject: Re: RV-List: new goodies from Trio Avionics --> RV-List message posted by: Jeff Point Me too. Anybody know if they are shipping yet? I know they have said by Sun n Fun, but it would sure be nice to have one for the trip to Sun n Fun. I plan to call them first thing tomorrow. Jeff Point RV-6 Milwaukee WI >I'm surprised you don't have a test unit yet! :-) > > > > > ________________________________ Message 31 ____________________________________ Time: 05:35:04 PM PST US From: "Ed Anderson" Subject: Re: RV-List: Major or Minor Modification for electronic --> RV-List message posted by: "Ed Anderson" John is absolutely correct. I had to get my operating limitations paper work changed to incorporate the "authority" to do major modifications - which IF you have the new wording- does permit you to make, test and sign off a major mod. If your operating limitations does not convey that authority and you make a "major modification" and DO NOT get the FAA/DAR to sign off and have an accident, then might as well forget your insurance. For additional "insurance" I think you would be well advised to the Repairman's Certificate as well - but that along is not sufficient. Your operating instructions need to be amended (by the FAA) if you do not have the authority to make a major mod. Ed Anderson Rv-6A N494BW Rotary Powered Matthews, NC eanderson@carolina.rr.com ----- Original Message ----- From: "John" Subject: Re: RV-List: Major or Minor Modification for electronic > --> RV-List message posted by: "John" > > That's correct IF, repeat IF, you have the "new" operating > limitations...the older ones did not have the part that allows the builder > to make major changes and go back into phase 1. Those older ones DID, > repeat, DID, require another inspection from FAA or a DAR. Read your > operating limitations to be certain. > > John > ----- Original Message ----- > From: > To: > Subject: Re: RV-List: Major or Minor Modification for electronic > > > > --> RV-List message posted by: RVer273sb@aol.com > > > > Cover your self and do 10 hrs of phase one for the P-mag > > installation. The way I understand it is now you don't need a DAR > > of FAA. Put it in phase one and then put it back into phase two > > after the 10 hrs. > > Don't give the insurance people a way out of a claim > > Consider it a Major mod. > > > > Stewart, RV 4 in co. > > > > > > > > ________________________________ Message 32 ____________________________________ Time: 05:56:21 PM PST US From: "Mike Robertson" Subject: Re: RV-List: Major or Minor Modification for electronic ignitions? --> RV-List message posted by: "Mike Robertson" It depends on what you Operating Limitations state for a major change. Changing to the electronic ignition from Slick Mags is definitely a major change. If you have the early limitations you will have to contact your local FSDO prior to making the change. A DAR cannot do this one. If you have newer limitations that allow you to do the major change yourself, then you make a log entry stating what you've done, place the aircraft back into Phase one for a mimimum of five hours, and go fly the test flights until either five hours is up and you are satisfied it is safe, or you must keep flying after the five hours until you are satisfied with the performance. After you are done with the test flight you make another log entry placing the aircraft back into phase two. If you have the newest limitations you must contact the FSDO for concurrence on the test flight area. They can do that via telephone and FAX. You are not getting permission to make the change, just getting concurrence on the test flight area. Any mor equestions give me a shout. Mike R. >From: Vanremog@aol.com >Reply-To: rv-list@matronics.com >To: rv-list@matronics.com >Subject: Re: RV-List: Major or Minor Modification for electronic ignitions? >Date: Sun, 6 Mar 2005 02:44:17 EST > >--> RV-List message posted by: Vanremog@aol.com > >To Mike Robertson- > >Mike- > >When changing out the ignition system (OEM Slick magnetos) to electronic >(two new P-mags), must I or how do I approach the FAA or my DAR (Dave >Morss)? > >Is this considered a major modification to my RV-6A and do I have to take >it >back into testing mode? I expect to get the P-mag installation completed >next week but want to ensure that all is properly done paperwork wise and >legal. > >Thanks in advance. > > >GV (RV-6A N1GV O-360-A1A, C/S, Flying 736hrs, Silicon Valley, CA) > > ________________________________ Message 33 ____________________________________ Time: 06:13:43 PM PST US From: "Stein Bruch" Subject: RE: RV-List: new goodies from Trio Avionics --> RV-List message posted by: "Stein Bruch" Trio isn't the only one with those features in upcoming autopilots especially altitude hold. Stay tuned for some good stuff out of TruTrak. More to come later! Cheers Stein Do not archive -----Original Message----- From: owner-rv-list-server@matronics.com [mailto:owner-rv-list-server@matronics.com]On Behalf Of Jeff Point Subject: Re: RV-List: new goodies from Trio Avionics --> RV-List message posted by: Jeff Point Me too. Anybody know if they are shipping yet? I know they have said by Sun n Fun, but it would sure be nice to have one for the trip to Sun n Fun. I plan to call them first thing tomorrow. Jeff Point RV-6 Milwaukee WI >I'm surprised you don't have a test unit yet! :-) > > ________________________________ Message 34 ____________________________________ Time: 06:26:52 PM PST US From: "Jim Jewell" Subject: Re: RV-List: magnetometer in an RV-8? --> RV-List message posted by: "Jim Jewell" My Efis D10A magnatometer is mounted on the rear deck as far forward as the wiring and structure would allow. The distance to the elevator horns pivot point is 21". No ill effect on the wiskey compass during testing. The aircraft has yet to leave the Garrage / nest so I'll have to wait until later this summer and see. Jim in Kelowna ----- Original Message ----- From: "Kevin Horton" Subject: Re: RV-List: magnetometer in an RV-8? > --> RV-List message posted by: Kevin Horton > > Sure, the elevator moves quite a bit during manoeuvring flight, but > do we really care how accurate our compass is while we are going over > the top of a loop, or during a stall or a hard turn? > > How much difference in elevator position is there over the range of > conditions in straight, 1 g flight? The worst case extremes would > be approach speed, flaps down, forward CG and high speed, flaps up, > aft CG. My RV isn't flying yet, so I don't know the answer to that > question. But there might not be enough movement to make a > significant difference. > > Kevin > >>--> RV-List message posted by: Charlie Kuss >> >>Glen, >> While ferrous metal is a problem for these units, moving ferrous metal >> is >>even worse. Unless I misunderstand where you are locating the unit, it >>seems to me that the elevator horns would be a problem. They are not >>small, >>stationary or very far (1 foot) away. What am I missing here??? >>Charlie Kuss >> >>>--> RV-List message posted by: "Glen Matejcek" >>> >>>Hi Bill- >>> >>>I (and BMA's tech rep) have put out magnetometers on the rear deck >>>between >>>the HS spars on our -8's. This is a good locale due to the lack of >>>ferrous >>>material in sufficient quantity to cause issues, and it is square with >>>the >>>rest of the aircraft. As I understand it, and I'm no digital guru, the >>>mag >>>really does need to be square with the airframe. It is a 3 dimensional >>>compass, and the brain box uses GPS lat /long to determine the local >>>slope >>>of the magnetic lines of force. This data is then compared to the >>>inertial >>>platform to 'back up' it's attitude solution. I think. Or recall. >>>Whatever. Bottom line, the magnetometers do need to be a square as >>>practical for the system to function optimally, as it was presented to >>>me. >>> >>> >>>For demonstration sake, you can set up your E/L on the kitchen table and >>>pitch the E/L while leaving the mag flat on the table. The heading will >>>change, even tho the mag is immobile. Made a believer out of me.... >>> >>>FWIW, >>> >>>YMMV, >>> >>>Not valid where prohibited by law' >>> >>>and most certainly, do not archive! >>> >>>Glen Matejcek >> >aerobubba@earthlink.net >>> >> > > > > ________________________________ Message 35 ____________________________________ Time: 07:01:29 PM PST US Subject: RE: RV-List: new goodies from Trio Avionics From: "RV Builder (Michael Sausen)" --> RV-List message posted by: "RV Builder (Michael Sausen)" Who cares about the functions, what I like is the LCD, backlit, push button switch! Now that's cool! Mmmm gadgets. Michael Sausen -----Original Message----- From: owner-rv-list-server@matronics.com [mailto:owner-rv-list-server@matronics.com] On Behalf Of Stein Bruch Subject: RE: RV-List: new goodies from Trio Avionics --> RV-List message posted by: "Stein Bruch" Trio isn't the only one with those features in upcoming autopilots especially altitude hold. Stay tuned for some good stuff out of TruTrak. More to come later! Cheers Stein Do not archive -----Original Message----- From: owner-rv-list-server@matronics.com [mailto:owner-rv-list-server@matronics.com]On Behalf Of Jeff Point Subject: Re: RV-List: new goodies from Trio Avionics --> RV-List message posted by: Jeff Point Me too. Anybody know if they are shipping yet? I know they have said by Sun n Fun, but it would sure be nice to have one for the trip to Sun n Fun. I plan to call them first thing tomorrow. Jeff Point RV-6 Milwaukee WI >I'm surprised you don't have a test unit yet! :-) > > ________________________________ Message 36 ____________________________________ Time: 07:13:19 PM PST US From: "Stein Bruch" Subject: RE: RV-List: new goodies from Trio Avionics --> RV-List message posted by: "Stein Bruch" I agree. That's what the Altrak has had for years! Cheers, Stein. -----Original Message----- From: owner-rv-list-server@matronics.com [mailto:owner-rv-list-server@matronics.com]On Behalf Of RV Builder (Michael Sausen) Subject: RE: RV-List: new goodies from Trio Avionics --> RV-List message posted by: "RV Builder (Michael Sausen)" Who cares about the functions, what I like is the LCD, backlit, push button switch! Now that's cool! Mmmm gadgets. Michael Sausen - >I'm surprised you don't have a test unit yet! :-) > > do not archive ________________________________ Message 37 ____________________________________ Time: 07:23:54 PM PST US From: Sam Buchanan Subject: Re: RV-List: new goodies from Trio Avionics --> RV-List message posted by: Sam Buchanan Stein Bruch wrote: > --> RV-List message posted by: "Stein Bruch" > > I agree. That's what the Altrak has had for years! > > Cheers, > Stein. No.....the AlTrak switch is just a lighted pushbutton. The new razzle dazzle LCD switch on the Trio altitude hold unit actually has different messages that are annunciated as necessary. Sam Buchanan ========================== > > -----Original Message----- > From: owner-rv-list-server@matronics.com > [mailto:owner-rv-list-server@matronics.com]On Behalf Of RV Builder > (Michael Sausen) > To: rv-list@matronics.com > Subject: RE: RV-List: new goodies from Trio Avionics > > > --> RV-List message posted by: "RV Builder (Michael Sausen)" > > > Who cares about the functions, what I like is the LCD, backlit, push > button switch! Now that's cool! Mmmm gadgets. > > Michael Sausen ________________________________ Message 38 ____________________________________ Time: 08:08:12 PM PST US From: "Stein Bruch" Subject: RE: RV-List: new goodies from Trio Avionics --> RV-List message posted by: "Stein Bruch" I knew I should have cleaned my glasses better....That's what I get with this growing older type lysdexia, interchanging LED & LCD! Agreed the displayed messages are nice bells & whistles! Cheers, STein. -----Original Message----- From: owner-rv-list-server@matronics.com [mailto:owner-rv-list-server@matronics.com]On Behalf Of Sam Buchanan Subject: Re: RV-List: new goodies from Trio Avionics --> RV-List message posted by: Sam Buchanan Stein Bruch wrote: > --> RV-List message posted by: "Stein Bruch" > > I agree. That's what the Altrak has had for years! > > Cheers, > Stein. No.....the AlTrak switch is just a lighted pushbutton. The new razzle dazzle LCD switch on the Trio altitude hold unit actually has different messages that are annunciated as necessary. Sam Buchanan ========================== do not archive ________________________________ Message 39 ____________________________________ Time: 08:42:44 PM PST US From: "Bill VonDane" Subject: Re: RV-List: magnetometer in an RV-8? --> RV-List message posted by: "Bill VonDane" I think on the -6 and -7 and probably the -9 you can put it in front of the HS spar, on the -8 you cant... I couldn't even get it a foot away... I talked to Greg Richter from blue mountain today and he said I was as bad as he was in getting it perfect... The reality is that even if you had some ferrous metal effecting your the magnetometer (as long as it was not moving like the elevator horns would be) it will be WAY more accurate than any other compass you have ever flown... -Bill ----- Original Message ----- From: "Jim Jewell" Subject: Re: RV-List: magnetometer in an RV-8? --> RV-List message posted by: "Jim Jewell" My Efis D10A magnatometer is mounted on the rear deck as far forward as the wiring and structure would allow. The distance to the elevator horns pivot point is 21". No ill effect on the wiskey compass during testing. The aircraft has yet to leave the Garrage / nest so I'll have to wait until later this summer and see. Jim in Kelowna ----- Original Message ----- From: "Kevin Horton" Subject: Re: RV-List: magnetometer in an RV-8? > --> RV-List message posted by: Kevin Horton > > Sure, the elevator moves quite a bit during manoeuvring flight, but > do we really care how accurate our compass is while we are going over > the top of a loop, or during a stall or a hard turn? > > How much difference in elevator position is there over the range of > conditions in straight, 1 g flight? The worst case extremes would > be approach speed, flaps down, forward CG and high speed, flaps up, > aft CG. My RV isn't flying yet, so I don't know the answer to that > question. But there might not be enough movement to make a > significant difference. > > Kevin > >>--> RV-List message posted by: Charlie Kuss >> >>Glen, >> While ferrous metal is a problem for these units, moving ferrous metal >> is >>even worse. Unless I misunderstand where you are locating the unit, it >>seems to me that the elevator horns would be a problem. They are not >>small, >>stationary or very far (1 foot) away. What am I missing here??? >>Charlie Kuss >> >>>--> RV-List message posted by: "Glen Matejcek" >>> >>>Hi Bill- >>> >>>I (and BMA's tech rep) have put out magnetometers on the rear deck >>>between >>>the HS spars on our -8's. This is a good locale due to the lack of >>>ferrous >>>material in sufficient quantity to cause issues, and it is square with >>>the >>>rest of the aircraft. As I understand it, and I'm no digital guru, the >>>mag >>>really does need to be square with the airframe. It is a 3 dimensional >>>compass, and the brain box uses GPS lat /long to determine the local >>>slope >>>of the magnetic lines of force. This data is then compared to the >>>inertial >>>platform to 'back up' it's attitude solution. I think. Or recall. >>>Whatever. Bottom line, the magnetometers do need to be a square as >>>practical for the system to function optimally, as it was presented to >>>me. >>> >>> >>>For demonstration sake, you can set up your E/L on the kitchen table and >>>pitch the E/L while leaving the mag flat on the table. The heading will >>>change, even tho the mag is immobile. Made a believer out of me.... >>> >>>FWIW, >>> >>>YMMV, >>> >>>Not valid where prohibited by law' >>> >>>and most certainly, do not archive! >>> >>>Glen Matejcek >> >aerobubba@earthlink.net >>> >> > > >