Europa-List Digest Archive

Mon 03/09/09


Total Messages Posted: 24



Today's Message Index:
----------------------
 
     1. 02:48 AM - Re: Skymap GPS (Paul Atkinson)
     2. 05:20 AM - Re: Am I lucky or what? (Kingsley Hurst)
     3. 05:20 AM - Re: Am I lucky or what? (Kingsley Hurst)
     4. 06:43 AM - Rotax 912 UL for Sale (george.mueller@aurora.org)
     5. 11:37 AM - 3 phase 115V AC 400Hz light weight power supply (Frans Veldman)
     6. 11:50 AM - Parting out Europa tri gear with 914 engine (Paul Boulet)
     7. 12:06 PM - software (Paul Stewart)
     8. 12:06 PM - Re: U2 just a big Europa? (Terry Seaver (terrys))
     9. 12:06 PM - Re: 3 phase 115V AC 400Hz light weight power supply (G-IANI)
    10. 12:18 PM - Re: 3 phase 115V AC 400Hz light weight power supply (rparigor@suffolk.lib.ny.us)
    11. 12:49 PM - Re: 3 phase 115V AC 400Hz light weight power supply (Frans Veldman)
    12. 12:59 PM - Re: 3 phase 115V AC 400Hz light weight power supply (Fred Klein)
    13. 01:04 PM - Re: 3 phase 115V AC 400Hz light weight power supply (Frans Veldman)
    14. 01:04 PM - Fw: 3 phase 115V AC 400Hz light weight power supply (Fred Klein)
    15. 01:05 PM - Re: 3 phase 115V AC 400Hz light weight power supply (DuaneFamly@aol.com)
    16. 01:34 PM - Re: 3 phase 115V AC 400Hz light weight power supply (William Daniell)
    17. 02:11 PM - Re: Flap position, Flight testing (ALAN YERLY)
    18. 02:49 PM - Re: Intercooler hoses (D Wysong)
    19. 03:05 PM - Re: 3 phase 115V AC 400Hz light weight power supply (ALAN YERLY)
    20. 04:02 PM - Re: 3 phase 115V AC 400Hz light weight power supply (Frans Veldman)
    21. 04:07 PM - Re: Re: Intercooler hoses (Robert C Harrison)
    22. 04:50 PM - Re: 3 phase 115V AC 400Hz light weight power supply (Kevin Klinefelter)
    23. 06:43 PM - LED Landing Lights (CHUCK RHOADS)
    24. 08:35 PM - Re: 3 phase 115V AC 400Hz light weight power supply (Paul McAllister)
 
 
 


Message 1


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    Time: 02:48:28 AM PST US
    From: "Paul Atkinson" <paullatkinson@talktalk.net>
    Subject: Skymap GPS
    Mike Even if you did have shares in the company I still appreciate the information. Thanks Paul Atkinson Do not archive From: owner-europa-list-server@matronics.com [mailto:owner-europa-list-server@matronics.com] On Behalf Of Mike Parkin Sent: 08 March 2009 22:30 Subject: Europa-List: Skymap GPS To all the UK readers........ For those who have not received their letter, Skyforce are trying to update their owners database and as an incentive are offering an updated Skymap 2/3 and KMD 150 database at the discounted price of =A370 (seventy pounds) including VAT and postage. Might be of interest to some users........... ---- and no, I don=92t have shares in the company. Skyforce in the UK tel: +44 (0)1243 783763 Offer ends on 31st March 2009 Regards, Mike


    Message 2


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    Time: 05:20:09 AM PST US
    From: "Kingsley Hurst" <hurstkr@redzone.com.au>
    Subject: Re: Am I lucky or what?
    Bob Borger said > You are getting serious here! If you aren't careful, you'll be flying that thing. How I hope you are correct Bob ! Thanks for the encouragement . Kingsley do not archive


    Message 3


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    Time: 05:20:09 AM PST US
    From: "Kingsley Hurst" <hurstkr@redzone.com.au>
    Subject: Re: Am I lucky or what?
    > what have you done on the fuselage where it is met > by the Wing Root, is it an optical illusion or have you moulded an > extrusion to meet the wing root? Hello Steve, I firstly laid up my upper and lower fairings from the fuselage to the wings bonding the two together. I then cut the lay-ups with a hacksaw blade so that half of a fairing was left on the fuse and the other half on the wing. Then sanded the gaps so that the upper gap was almost 3 mm and the under surface gap almost 2 mm. These lay-ups were made over blue foam so I then laid up the inside parts of the foam and after that, the two semi mating surfaces. The end result is a gap of 2 mm on top and 1 mm underneath. I intend to put Door and Window Weather Strip on one of the mating surfaces. Only testing will tell but I hope this should suffice as a seal for local flying. If I want a perfect seal for X country flying, I will do the old glider trick of running some PVC tape right around from trailing edge to trailing edge. Maybe, I will have to use the tape all the time, don't know yet. Have attached some photos which should explain better than the words above. The dates on these photos are embarrassing. Note that the gaps you see in these photos are a little wider than the finished product because all the glass surfaces have now been filled for painting which is my next job. Best regards Kingsley


    Message 4


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    Time: 06:43:37 AM PST US
    Subject: Rotax 912 UL for Sale
    From: george.mueller@aurora.org
    In case anyone has a need, I have a Rotax 912 UL with 60 hours TTSN along with a Woodcomp Klassic 68" three blade prop 30 hours TTSN for sale on Barnstormers for $14,900. The engine is currently being gone over by an authorized Rotax dealer to make sure it is perfect. 414-647-3134 if you are interested. I am selling because I need to upgrade to a 912S because I am putting floats on my airplane. George in Milwaukee Zenith 701 60 Hours Flying


    Message 5


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    Time: 11:37:13 AM PST US
    From: Frans Veldman <frans@paardnatuurlijk.nl>
    Subject: 3 phase 115V AC 400Hz light weight power supply
    In my Europa, I would like to have an attitude indicator. Not for instrument flying, but just "in case". As I don't have a vacuum system, but dual alternators instead, the attitude indicator had to be electrical. These electrical attitude indicators are available for various prices, but almost all of them fall into the "very expensive" range. I decided to buy a Falcon 12 Volt gyro, to see if this would be usable. Well, it worked initially, with a lot of noise, but apparently the carefull removal and re-installation of the entire instrument panel was enough to cause the instrument to get damaged. I will probably get this thing repaired, but I don't want to have it in my ship anymore. (Anyone interested in it?) On the other end of the "robustness scale" are the surplus attitude indicators. I bought a unit for scrap price from Ebay, and started experimenting. The problem is that these units need 3 phase 115 Volt AC 400Hz, making them very unpopular (but also very affordable). Some people built inverters, but with the three required transformers they used to weigh as much as the instrument itself. I decided to design and build a switching power supply myself. After some testing and burning up some components, I now have something that works, weighing less than 60 grams (2 oz), (excluding its housing), very small, and efficient with electricity. (And powerfull, with just 12 Volt input it can feed a normal 40 Watt houshold light bulb without problems). I connected it to my Ebay-scrap-gyro from the 60's, and to my delight the instrument started up right away. Low noise, and the horizon bar erects and stabilises precisely where it needs to be. I suspect that this unit has seen some more serious "mishandling" than my new Falcon gyro, but despites it sounds and appears like it can service for many more years to come. Apart from having an affordable attitude indicator, for me it has some additional value to have something in front of me that once serviced a DC-3 or a fighter in the vietnam war, at least more sentimental value than something that was made in China. If anyone else is interested in using 3-phase, 115V AC 400hz attitude indicators (or other instruments), I can see if I can make a few more of these inverters, or assemble a components package for one who wants to try to build it himself. And just to be sure: I am aware of the existence of glass panels with "attitude indicators" built in. ;-) Telling me that this is a better solution is the same as me telling you that you'd better just buy a nice factory airplane instead of building your own. ;-) I just love to fiddle with all these instruments and electronics and I see less fun in connecting a single huge screen that "has it all". -- Frans Veldman


    Message 6


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    Time: 11:50:20 AM PST US
    From: Paul Boulet <possibletodo@YAHOO.COM>
    Subject: Parting out Europa tri gear with 914 engine
    Hi George; Hi all; I''ve decided to dismantle and part out my tri gear 914 powered with consta nt speed prop. If anyone has interest in the parts please contact me off list.- The moto r has 25 hours on it Paul Boulet, N914PB Malibu, CA phone: 310-963-0210 email: PossibleToDo@yahoo.com- --- On Mon, 3/9/09, george.mueller@aurora.org <george.mueller@aurora.org> w rote: From: george.mueller@aurora.org <george.mueller@aurora.org> Subject: Europa-List: Rotax 912 UL for Sale In case anyone has a need, I have a Rotax 912 UL with 60 hours TTSN along w ith a Woodcomp Klassic 68" three blade prop 30 hours TTSN for sale on Barns tormers for $14,900. -The engine is currently being gone over by an autho rized Rotax dealer to make sure it is perfect. -414-647-3134 if you are i nterested. I am selling because I need to upgrade to a 912S because I am pu tting floats on my airplane. George in Milwaukee Zenith 701 60 Hours Flying


    Message 7


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    Time: 12:06:22 PM PST US
    From: Paul Stewart <europa@pstewart.f2s.com>
    Subject: software
    Anyone know where I can get a copy of the throttle setting software for the 914? Paul G-GIDY


    Message 8


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    Time: 12:06:22 PM PST US
    Subject: U2 just a big Europa?
    From: "Terry Seaver (terrys)" <terrys@cisco.com>
    Hi Fred, I am happy with the long wings in most respects, we get almost 26:1 glide ratio and decent minimum sink. The handling is pleasantly light compared to the Katana Extreme MG I trained in. We are getting a 130 KTAS cruise at 5.3 gph, which is not a lot less than with the short wings. My only complaint is with the air brakes, they just don't have enough authority. regards, Terry ________________________________ From: owner-europa-list-server@matronics.com [mailto:owner-europa-list-server@matronics.com] On Behalf Of Fred Klein Sent: Friday, March 06, 2009 2:45 PM Subject: Re: Europa-List: U2 just a big Europa? ---- "Terry Seaver (terrys)" <terrys@cisco.com> wrote: Europa may indeed just be a mini-U2. Jeesus Terry...I have newfound respect for all the sailplane guys... And how do you like your long wings? Fred A194 -- This message has been scanned for viruses and dangerous content by MailScanner <http://www.mailscanner.info/> , and is believed to be clean.


    Message 9


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    Time: 12:06:22 PM PST US
    From: "G-IANI" <g-iani@ntlworld.com>
    Subject: 3 phase 115V AC 400Hz light weight power supply
    Frans Did you think about the TruTrak Pilot 1 (or 2). This would do what you want and of course you could have autopilot if you want to spend the additional $1000 per servo. Mine has been reliable. Ian Rickard G-IANI XS Trigear, 200 hours Europa Club Mods Rep (Trigear) e-mail mods@europaclub.org.uk or direct g-iani@ntlworld.com


    Message 10


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    Time: 12:18:15 PM PST US
    Subject: Re: 3 phase 115V AC 400Hz light weight power supply
    From: rparigor@suffolk.lib.ny.us
    Hi Frans Sounds like great fun making a cheap 400MHz attitude indicator work on Europa power. Just a word of caution, might be worth it to have instrument gone over and rebuilt. I owned a 1948 Cessna 170 with a venturi driven gyro that worked OK as long as you had flying speed for 19 years. There was only one time I needed that instrument, taking off from Lebnon NH at night with a high overcast. It was the blackest night I ever flew in. At 200 feet my gyro said I was about to turn upside down. I knew my aeroplane, it was trimmed and let go of the controls. It was about 35 F and the bearings in the gyro descided to slightlybind up at that precise moment. I took it apart and adjusted and burnished the bearings with limited sucess. It needed new bushngs and shaft and tip bearings. If your unit has gyro bushings/bearings anything like mine did, replace them all or have them refinished. It wasn't all that expensive considering. Ron Parigoris


    Message 11


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    Time: 12:49:45 PM PST US
    From: Frans Veldman <frans@paardnatuurlijk.nl>
    Subject: Re: 3 phase 115V AC 400Hz light weight power supply
    G-IANI wrote: > Did you think about the TruTrak Pilot 1 (or 2). We did, for a long time. But we rejected it finally because it is not a real gyro (if I remember correctly it would show wings level while you are not flying coordinated and with one wing low, and it has to rely on the static port to indicate a pitch angle, reducing redundancy), and to be honest, on the pictures it looks a bit like a toy (but I have never seen one in real life) while it is still quite expensive. As an autopilot I already have the trio avionics autopilot, and it double duties as a (gravity based, GPS coupled) turn coordinator. That's one of the reasons I want to have a real attitude indicator, one that is independent from GPS, static port and other sensors/inputs that are shared by other instruments. This redundancy is probably overkill as I'm not intentionally going to fly in IMC, but it eases my mind to know that with for instance a static port blockage, not all my instruments will heartily agree with each other that I'm really holding altitude, while I'm in fact plunging down. We considered various options for a gyro-less setup, but every time we found reasons to come back to the good old gyro. -- Frans Veldman


    Message 12


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    Time: 12:59:50 PM PST US
    From: Fred Klein <fklein@orcasonline.com>
    Subject: Re: 3 phase 115V AC 400Hz light weight power supply
    What's the catch with the solid state gyro listed at only $165 at Acft Spr. http://www.aircraftspruce.com/catalog/inpages/1105706.php Is this just a cheep toy or truly a gamechanger? Fred A194


    Message 13


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    Time: 01:04:14 PM PST US
    From: Frans Veldman <frans@paardnatuurlijk.nl>
    Subject: Re: 3 phase 115V AC 400Hz light weight power supply
    rparigor@suffolk.lib.ny.us wrote: > Sounds like great fun making a cheap 400MHz attitude indicator work on > Europa power. > > Just a word of caution, might be worth it to have instrument gone over > and rebuilt. That's what I intend to do anyway (if I can find a company still having the parts and experience to do it properly). If the last owner has dropped it, it is well possible that the instrument still works ok, but the dents in the gears will make it fail rapidly. But once it is overhauled, it is a top quality and very reliable instrument. Thanks for sharing you thoughts. -- Frans Veldman


    Message 14


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    Time: 01:04:34 PM PST US
    From: Fred Klein <fklein@orcasonline.com>
    Subject: 3 phase 115V AC 400Hz light weight power supply
    > What's the catch with the solid state gyro listed at only $165 at > Acft Spr. > > http://www.aircraftspruce.com/catalog/inpages/1105706.php > > Is this just a cheep toy or truly a gamechanger? Aha...the catch is a requirement for a $950 sensor package! ...things to good to be true...rarely are... Sorry guys, Fred


    Message 15


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    Time: 01:05:52 PM PST US
    From: DuaneFamly@aol.com
    Subject: Re: 3 phase 115V AC 400Hz light weight power supply
    In a message dated 3/9/2009 1:00:27 P.M. Pacific Daylight Time, fklein@orcasonline.com writes: What's the catch with the solid state gyro listed at only $165 at Acft Spr. Please note that it says "Sensors are Required" ......and the sensors are $240 and $950. Add that to the price of the indicator and it puts it back into the $$$ category. Mike Duane A207A Redding, California XS Conventional Gear Jabiru 3300A Sensenich R64Z N Ground Adjustable Prop **************Need a job? Find employment help in your area. (http://yellowpages.aol.com/search?query=employment_agencies&ncid=emlcntusyelp00000005)


    Message 16


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    Time: 01:34:35 PM PST US
    From: "William Daniell" <wdaniell@etb.net.co>
    Subject: 3 phase 115V AC 400Hz light weight power supply
    http://www.pcflightsystems.com/ I have one of these in my Zenith clone - unless things go horribly wrong I certainly don't intend fly in conditions where I might need it. Having said that it works well and provides a completely independent AI which runs off its own power. Will From: owner-europa-list-server@matronics.com [mailto:owner-europa-list-server@matronics.com] On Behalf Of Fred Klein Sent: Monday, March 09, 2009 15:02 Subject: Fwd: Europa-List: 3 phase 115V AC 400Hz light weight power supply What's the catch with the solid state gyro listed at only $165 at Acft Spr. http://www.aircraftspruce.com/catalog/inpages/1105706.php Is this just a cheep toy or truly a gamechanger? Aha...the catch is a requirement for a $950 sensor package! ...things to good to be true...rarely are... Sorry guys, Fred


    Message 17


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    Time: 02:11:15 PM PST US
    From: "ALAN YERLY" <budyerly@msn.com>
    Subject: Re: Flap position, Flight testing
    Kevin, After flight testing a number of these aircraft the advice/concerns of all who have answered are sound. My tips for in house use are pasted below: This presupposes that you have accomplished the Annex E properly, checked the engine and systems for safety etc. Preflight Rules before you fly: Rule 1. Check the incidence with a digital level at the root and the tip. Should be within .1 degree. Some of the tips are off a little. Rule 2. If a mono, support the aircraft and retract gear and flaps, if tri-gear, retract the flaps. Sit behind the aircraft on centerline and look at the trailing edge. Move your head up and down until you can see the shadow line of the lower surface. Look left and right. The shadow line should be even on both sides. The mean aerodynamic chord is near the flap/aileron junction. Your outriggers will spoil your view, but at that point the left and right wing shadows should be dead even. This checks the wing is square and the incidence is correct. Some flaps have a little play and will droop under gravity, but fly up when airborne. Use a stick with very light pressure to hold them in place. Note: Why use your eye, because the eye is a superb level and square indicator, not suspect of measuring methods. Rule 3. Check the tail surfaces are square to the wing and the rear fuselage is not twisted. Both stabs are exactly at the same incidence. Two degrees off on the stabs is like 1/8 aileron deflection. Rule 4. Check the engine offset is per the manual at right thrust 1 1/16 inch offset to the firewall. Rule 5. Check flap hinge coves and wheel pants for square. Remove if not aligned properly. >From my experience, the left roll is due to pilot weight. Higher thrust engines and CS props will add P factor even at an alpha of 2-3 degrees. Most planes need slight right rudder. This is easily trimmed by shortening the right rudder spring one or two links or putting in a cable shortener as depicted in the manual on the one side. (Trim tabs are ugly when stuck on a beautiful airplane and emphasize that there is a rigging error.) So preserve your ego and let the spring do the work for you. Yes I designed a rudder trim, and no I won't tell you but you can figure it out from above. Any roll with a drooped flap in flight needs to be compensated for, so jumping ahead: Roll trimming during flight test: Any roll corrections need to be done with the ball perfectly centered. Most EFIS ball indications are not as good as a good old fashioned ball and a distant cloud. Center the ball first. Move aileron to stop the roll and re-center the ball. Note the aileron deflection by checking stick free with deflection required. Land. Note: By this I mean hold the stick for level flight, then release and note the movement of the stick. Reapply the stick deflection and note how much deflection stops the roll...Look outside too. Provided the aircraft has even stabs, proper incidence and the flaps are even, proceed to: Adjust the flap which is up too far with the set screw in the baggage bay (Custom Flight Mod) or by adding a shim to the back of the baggage bay and the flap tube through the hole in the side of the aircraft with thin wedges to shim the flaps 1/32nd of an inch to correct roll. Right flap down rolls right. Go fly. When roll is cured you may need to adjust the aileron to match. But wait, most likely, then it needs the flap to be trimmed again for less deflection due to the aileron trimming, or because you made the airplane with very little friction in your roll system, you may see both ailerons now evenly up or down as appropriate. Go fly again. Test trim, then re-do stall series. If the wing tip is off, and/or an aileron tab is needed, re-contour the aileron. To do this, sand one inch back on the lower trailing edge of the aileron which needs to fly up and add filler (Evercoat Rage works great) to make a wedge that tapers from zero to 1/16 of an inch along the full span. Think of it as a long wedge of nearly no weight. Go fly. Land and sand, then go fly until it is trimmed. Paint as required. Makes a virtually invisible aileron trim tab and the thickness is very difficult for the untrained observer to catch. Enjoy making your plane perfect, it is worth the effort. I never get a chance to do my own. Bud Yerly Custom Flight Creations ----- Original Message ----- From: Kevin Klinefelter<mailto:kevann@gotsky.com> To: europa-list@matronics.com<mailto:europa-list@matronics.com> Sent: Friday, March 06, 2009 9:04 AM Subject: Re: Europa-List: Flap position, Flight testing Jim, In cruise I have to hold a little left rudder... Kevin ----- Original Message ----- From: Jim Brown<mailto:acrojim7534@YAHOO.COM> To: europa-list@matronics.com<mailto:europa-list@matronics.com> Sent: Friday, March 06, 2009 4:21 AM Subject: Re: Europa-List: Flap position, Flight testing Kevin I would think that given the left flap is lower than the right flap that the plane would be turning right. Given that the left flap will have more pressure on it than the right flap. I would suggest that on the next flight check the turn and bank ball. and see if its setting to the right. Try centering the ball with rudder and see if that helps. Jim Brown --- On Thu, 3/5/09, Kevin Klinefelter <kevann@gotsky.com> wrote: From: Kevin Klinefelter <kevann@gotsky.com> Subject: Europa-List: Flap position, Flight testing To: europa-list@matronics.com Date: Thursday, March 5, 2009, 11:38 PM Hi All, Flight testing of 914 powered monowheel N211KA is going well (29 hours).I have a flap position question for those who have been there. The aircraft has an irritating left turn in it when flown solo and slight left turn with two up. When trimmed out cruising straight and level the ailerons are close to even with the wing tips and the left flap is noticeably lower relative to it's aileron than the right side, which is almost even with the aileron. I think if I can rig the left flap up even with the aileron it will help cure the left turning problem and be less drag. I thought I might get a new flap hinge arm (FL16) on the left and with the aircraft supported and flaps up in the desired position I could drill new holes thru the lugs on the tourqe tube so the left flap retacted position matches the right. Will this work or is there a better way? Thanks, Kevin... flying and grinning... arget=_blank rel=nofollow>http://www.matronics.com/Navigator?Europa-List =nofollow>http://forums.matronics.com blank rel=nofollow>http://www.matronics.com/contribution href="http://www.matronics.com/Navigator?Europa-List">http://www.matron href="http://forums.matronics.com">http://forums.matronics.com href="http://www.matronics.com/contribution">http://www.matronics.com/c http://www.matronics.com/Navigator?Europa-List<http://www.matronics.com/N avigator?Europa-List> http://www.matronics.com/contribution<http://www.matronics.com/contributi on>


    Message 18


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    Time: 02:49:53 PM PST US
    Subject: Re: Intercooler hoses
    From: D Wysong <hdwysong@gmail.com>
    Frans, We used silicone elbows from http://www.turbohoses.com/ The claim to ship internationally, too. D


    Message 19


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    Time: 03:05:43 PM PST US
    From: "ALAN YERLY" <budyerly@msn.com>
    Subject: Re: 3 phase 115V AC 400Hz light weight power supply
    Frans, The Tru Track ADI Pilot Attitude indicator is $1000 and comes with internal compass and ball which is great. Two instruments in one and backed by the company. Add a servo in the ADI Pilot I and you have autopilot or (wing leveler) that interfaces with any Garmin product and most others. You get what you pay for. Time is money. Had a Falcon, had a Ray Allen, they all fail over time. Tru Track is solid state reliable, light and uses less power. I wish I was the dealer for them. Bud Yerly Custom Flight Creations ----- Original Message ----- From: Frans Veldman<mailto:frans@paardnatuurlijk.nl> To: europa-list@matronics.com<mailto:europa-list@matronics.com> Sent: Monday, March 09, 2009 2:34 PM Subject: Europa-List: 3 phase 115V AC 400Hz light weight power supply <frans@paardnatuurlijk.nl<mailto:frans@paardnatuurlijk.nl>> In my Europa, I would like to have an attitude indicator. Not for instrument flying, but just "in case". As I don't have a vacuum system, but dual alternators instead, the attitude indicator had to be electrical. These electrical attitude indicators are available for various prices, but almost all of them fall into the "very expensive" range. I decided to buy a Falcon 12 Volt gyro, to see if this would be usable. Well, it worked initially, with a lot of noise, but apparently the carefull removal and re-installation of the entire instrument panel was enough to cause the instrument to get damaged. I will probably get this thing repaired, but I don't want to have it in my ship anymore. (Anyone interested in it?) On the other end of the "robustness scale" are the surplus attitude indicators. I bought a unit for scrap price from Ebay, and started experimenting. The problem is that these units need 3 phase 115 Volt AC 400Hz, making them very unpopular (but also very affordable). Some people built inverters, but with the three required transformers they used to weigh as much as the instrument itself. I decided to design and build a switching power supply myself. After some testing and burning up some components, I now have something that works, weighing less than 60 grams (2 oz), (excluding its housing), very small, and efficient with electricity. (And powerfull, with just 12 Volt input it can feed a normal 40 Watt houshold light bulb without problems). I connected it to my Ebay-scrap-gyro from the 60's, and to my delight the instrument started up right away. Low noise, and the horizon bar erects and stabilises precisely where it needs to be. I suspect that this unit has seen some more serious "mishandling" than my new Falcon gyro, but despites it sounds and appears like it can service for many more years to come. Apart from having an affordable attitude indicator, for me it has some additional value to have something in front of me that once serviced a DC-3 or a fighter in the vietnam war, at least more sentimental value than something that was made in China. If anyone else is interested in using 3-phase, 115V AC 400hz attitude indicators (or other instruments), I can see if I can make a few more of these inverters, or assemble a components package for one who wants to try to build it himself. And just to be sure: I am aware of the existence of glass panels with "attitude indicators" built in. ;-) Telling me that this is a better solution is the same as me telling you that you'd better just buy a nice factory airplane instead of building your own. ;-) I just love to fiddle with all these instruments and electronics and I see less fun in connecting a single huge screen that "has it all". -- Frans Veldman http://www.matronics.com/Navigator?Europa-List<http://www.matronics.com/N avigator?Europa-List> http://www.matronics.com/contribution<http://www.matronics.com/contributi on>


    Message 20


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    Time: 04:02:55 PM PST US
    From: Frans Veldman <frans@paardnatuurlijk.nl>
    Subject: Re: 3 phase 115V AC 400Hz light weight power supply
    ALAN YERLY wrote: > Frans, > The Tru Track ADI Pilot Attitude indicator is $1000 and comes with > internal compass and ball which is great. As far as I know it is not a compass but a GPS heading indicator. I alread have a GPS, a compass is these days meant as a backup for the GPS (in case of satellite failure). A "compass" based on GPS is worthless as it offers almost no extra redundancy. And as I mentioned before, solid state gyro's still have so much drift that they need contineous compensation. Solid state gyro's are good in detecting sudden changes, but they can't detect whether a situation persists. So they need compensation from GPS ("hey we are still turning, so we are most likely still banking) and from the static port ("pressure is still decreasing, so let's continue to display a pitch-up, that would probably be right"). These things are thus not showing the actual situation, but a *derived* situation. Which will probably be right most of the time, but offers you no additional information and is worthless in a case of emergency: Loose your static port for some reason (icing?), and you will loose your "pitch indicator" as well. Loose the GPS signal for some reason, and the "compass" is gone too. Bank your airplane without making a turn, and the indicator will try to convince you that the wings are really, really level. (Don;t believe me? Try it next time yourself. Of course you won't intentionally maintain heading with a banked plane in VMC (cross controlled), but it could easily happen in IMC, and that's why we have this attitude indicator in the first place, right?). Problem with all this is lack of redundancy, and it is the redundancy why I want to have an attitude indicator and compass in the first place. > Add a servo in the ADI Pilot I and you have > autopilot or (wing leveler) that interfaces with any Garmin product and > most others. Here the same story. One of the reasons I have an auto-pilot is if I inadvertently fly into IMC. If I suspect that my attitude indicator is failing, I will let the autopilot take over. Or the other way around. Unless.... the autopilot is linked to the same failing attitude indicator. Loose that single one instrument, and all your options are gone. > Had a Falcon, had a Ray Allen, they all fail over time. Tru Track is > solid state reliable, light and uses less power. It certainly has some advantages. But it is still not an equal substitute for a real gyro. -- Frans Veldman


    Message 21


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    Time: 04:07:23 PM PST US
    From: "Robert C Harrison" <ptag.dev@tiscali.co.uk>
    Subject: Re: Intercooler hoses
    Hi! D It is my belief that the turbo flange will be too hot (especially after shut down) for silicone hoses. Silicone is OK for water cooling system only? However I suggest you check this out don't rely on my authority. Regards Bob Harrison G-PTAG -----Original Message----- From: owner-europa-list-server@matronics.com [mailto:owner-europa-list-server@matronics.com] On Behalf Of D Wysong Sent: 09 March 2009 21:46 Subject: Europa-List: Re: Intercooler hoses Frans, We used silicone elbows from http://www.turbohoses.com/ The claim to ship internationally, too. D


    Message 22


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    Time: 04:50:38 PM PST US
    From: "Kevin Klinefelter" <kevann@gotsky.com>
    Subject: Re: 3 phase 115V AC 400Hz light weight power supply
    The trutrak has built in magnetometer for backup source of heading in case of GPS signal loss. Kevin ----- Original Message ----- From: "Frans Veldman" <frans@paardnatuurlijk.nl> Sent: Monday, March 09, 2009 3:58 PM Subject: Re: Europa-List: 3 phase 115V AC 400Hz light weight power supply > <frans@paardnatuurlijk.nl> > > ALAN YERLY wrote: >> Frans, >> The Tru Track ADI Pilot Attitude indicator is $1000 and comes with >> internal compass and ball which is great. > > As far as I know it is not a compass but a GPS heading indicator. I > alread have a GPS, a compass is these days meant as a backup for the GPS > (in case of satellite failure). A "compass" based on GPS is worthless as > it offers almost no extra redundancy. > And as I mentioned before, solid state gyro's still have so much drift > that they need contineous compensation. Solid state gyro's are good in > detecting sudden changes, but they can't detect whether a situation > persists. So they need compensation from GPS ("hey we are still turning, > so we are most likely still banking) and from the static port ("pressure > is still decreasing, so let's continue to display a pitch-up, that would > probably be right"). These things are thus not showing the actual > situation, but a *derived* situation. Which will probably be right most > of the time, but offers you no additional information and is worthless > in a case of emergency: Loose your static port for some reason (icing?), > and you will loose your "pitch indicator" as well. Loose the GPS signal > for some reason, and the "compass" is gone too. Bank your airplane > without making a turn, and the indicator will try to convince you that > the wings are really, really level. (Don;t believe me? Try it next time > yourself. Of course you won't intentionally maintain heading with a > banked plane in VMC (cross controlled), but it could easily happen in > IMC, and that's why we have this attitude indicator in the first place, > right?). Problem with all this is lack of redundancy, and it is the > redundancy why I want to have an attitude indicator and compass in the > first place. > >> Add a servo in the ADI Pilot I and you have >> autopilot or (wing leveler) that interfaces with any Garmin product and >> most others. > > Here the same story. One of the reasons I have an auto-pilot is if I > inadvertently fly into IMC. If I suspect that my attitude indicator is > failing, I will let the autopilot take over. Or the other way around. > Unless.... the autopilot is linked to the same failing attitude > indicator. Loose that single one instrument, and all your options are > gone. > >> Had a Falcon, had a Ray Allen, they all fail over time. Tru Track is >> solid state reliable, light and uses less power. > > It certainly has some advantages. But it is still not an equal > substitute for a real gyro. > > -- > Frans Veldman > > >


    Message 23


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    Time: 06:43:39 PM PST US
    From: CHUCK RHOADS <cfrhoads@YAHOO.COM>
    Subject: LED Landing Lights
    =0A-The weather finally got warm enough that I could spend some time work ing on my LED landing lights from J.C. Whitney and try to solve the severe static problems during transmitting.- After talking with some friends and a electrical engineer I decided to try the old method that we used 40 year s ago on car radios.- I went to the local auto parts store, Advance Auto, and bought their radio-noise suppressor, less than $6.00.- It works wo nderfully well.-It apparently contains a capacitor and an inductor.=0A=0A For the purpose that I plan to use the lights, to be seen by other aircraft during landing, I am very happy with the results.- At my present airport night landings, is in my opinion are just for those with a death wish,- three times I have been at my hanger at night and two time there were deer within 200 feet of the hanger that I had to slow the car down to wait until they got off the hanger access road.=0A=0AHave a wonderful summer,=0AChuck Rhoads=0AA100- 115hours=0A=0A=0A


    Message 24


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    Time: 08:35:01 PM PST US
    Subject: Re: 3 phase 115V AC 400Hz light weight power supply
    From: Paul McAllister <paul.the.aviator@gmail.com>
    Hi Kevin & all, The Trutrack A/P that I have does have an internal magnetometer as well as taking a GPS track. Unfortunately the 2.25 ADI I have does not, it only has GPS track. I installed the ADI as a back up to my glass, it gives me GPS track, horizon and VSI. Many people think due to the nature of the display that it is pitch, but it isn't. The ADI is far from perfect, but I found that I could fly an approach with it under the hood, so I guess it was good enough. If might be a different story in turbulence and pelting rain. With that said, given that I wanted some type of completely separate device to back my glass up it was the best choice available at the time. Although it would have been cheaper I didn't really want a pair of glass panels with separate ADHS systems because I wanted to rule out the possibility of the same software bug occurring on both devices ( yes that is paranoia at is best ), I guess I have just written too much software in my past life to be that trusting. Also, to give good redundancy I would have needed dual pitot static systems as well. In summary, I really like the approach that Frans has taken, it simple, and proven. Sure, like everything else there are a bunch of things that could go wrong, but part of the exercise of engineering a system for our aircraft is to assume that something will fail and have something in your panel that will accommodate this failure. BTW, Frans, I thought of doing something similar but decided designing a three phase inverter was too hard, which is a very sad commentary on me given my past life in Electronic Engineering. Kudos to you ! Cheers, Paul




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