Kolb-List Digest Archive

Wed 04/08/09


Total Messages Posted: 37



Today's Message Index:
----------------------
 
     1. 03:55 AM - blade harmonics (Ted Cowan)
     2. 05:04 AM - Re: blade harmonics (Jim Kmet)
     3. 05:26 AM - Re: 912 ULS starter (Thom Riddle)
     4. 06:59 AM - Re: Harsh words about Rotax (Blumax008@aol.com)
     5. 07:44 AM - Re: blade harmonics (Jack B. Hart)
     6. 08:23 AM - Re: blade harmonics (Richard Girard)
     7. 08:23 AM - Re: blade harmonics (lucien)
     8. 09:06 AM - Re: Harsh words about Rotax (lucien)
     9. 09:20 AM - Victoria Falls (pj.ladd)
    10. 09:36 AM - Re: Re: Harsh words about Rotax (John Hauck)
    11. 09:40 AM - Re: Victoria Falls (John Hauck)
    12. 09:40 AM - Re: Re: blade harmonics (Dana Hague)
    13. 09:43 AM - Re: Victoria Falls (william sullivan)
    14. 10:16 AM - Re: Harsh words about Rotax (lucien)
    15. 10:27 AM - Re: blade harmonics (lucien)
    16. 10:49 AM - Re: Re: blade harmonics (Dennis Watson)
    17. 11:08 AM - Re: blade harmonics (lucien)
    18. 11:41 AM - Re: Victoria Falls (Larry Cottrell)
    19. 12:42 PM - Re: Re: blade harmonics (John Hauck)
    20. 02:35 PM - Re: Re: blade harmonics (Dana Hague)
    21. 02:38 PM - Re: 912 ULS starter (Thom Riddle)
    22. 02:54 PM - V.W.conversion (frank.goodnight)
    23. 03:26 PM - now an actual Kolb question (lucien)
    24. 03:59 PM - Re: Back to gascolators (Dave Kulp)
    25. 04:28 PM - Re: Victoria Falls (TheWanderingWench)
    26. 05:14 PM - Re: now an actual Kolb question (John Hauck)
    27. 05:26 PM - Re: now an actual Kolb question (herb)
    28. 05:33 PM - Re: now an actual Kolb question (John Hauck)
    29. 05:36 PM - Re: Back to gascolators (Mike Welch)
    30. 06:56 PM - Re: Back to gascolators (JetPilot)
    31. 07:34 PM - Re: Back to gascolators (Jack B. Hart)
    32. 07:59 PM - Mixture control... (herb)
    33. 08:02 PM - Re: V.W.conversion (Richard & Martha Neilsen)
    34. 08:02 PM - Re: now an actual Kolb question (lucien)
    35. 08:21 PM - Re: Re: now an actual Kolb question (John Hauck)
    36. 09:08 PM - Re: V.W.conversion (jerb)
    37. 09:10 PM - Re: Re: 912 ULS starter (b young)
 
 
 


Message 1


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    Time: 03:55:12 AM PST US
    From: "Ted Cowan" <tc1917@bellsouth.net>
    Subject: blade harmonics
    I still have the problem of harmonics with my blades on my slingshot. I have narrowed it back down to the blades. even though they have been sent back twice and super balanced by myself and lazer set, it is still there, buzz buzz buzz. drives you nuts. put a good anr set in my helmet and that makes it tolerable. friend has a new set of wd blades down in florida. gotta get down there and put them on my plane. if it makes it go away I am going after wd for new blades big time. this noise is awsome and sounds like I am flying a five o'clock charlie in korea. good luck. on two of my blades you can see the cloth and one has a smaller tip. told wd this and they didnt do anything but grind them down further. gotta prove it first. will think twice about my next set of blades. ted cowan, alabama, slingshot 912. p.s. if it werent for this harmonic problem I think I have the perfect flying machine, zoom zoom. at least for me.


    Message 2


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    Time: 05:04:46 AM PST US
    From: "Jim Kmet" <jlsk1@frontiernet.net>
    Subject: Re: blade harmonics
    Hey Ted, I just started flying my MK-3C with a 912 with the Titan exhaust,(& WD Prop) & have a similar harmonics. Now don`t get me wrong, mine isn`t as pronounced as yours, & I`ve only flown it 2.2 hours with the 912, but here`s something I`m gonna try, unless you already have & proven it doesn`t work. When I look at the exhaust/prop view from the side, my exhaust is hitting the blades a few inches up the blade in the flatter area of the prop. My exhaust goes straight up now, but if I rotate it 90 degrees either way, it looks like it will hit the prop more in the "hub -to -blade transition area, in the round part of the blade just as it exits the hub. It will be another week or 2 before I get to try this, So if you already have, or do soon, let me know what happened. Also, mine isn`t so bad that a tweak of the throttle lessens it & If it doesnt` go away, I`ll probably live with it. None on my friends have mentioned it, & I have`nt either, on purpose, to see if anyone else notices. Thanks, Jim Kmet Cookeville, TN MK-3C 912 MK-3C 582 ----- Original Message ----- From: "Ted Cowan" <tc1917@bellsouth.net> Sent: Wednesday, April 08, 2009 5:53 AM Subject: Kolb-List: blade harmonics > > I still have the problem of harmonics with my blades on my slingshot. I > have narrowed it back down to the blades. even though they have been sent > back twice and super balanced by myself and lazer set, it is still there, > buzz buzz buzz. drives you nuts. put a good anr set in my helmet and > that makes it tolerable. friend has a new set of wd blades down in > florida. gotta get down there and put them on my plane. if it makes it go > away I am going after wd for new blades big time. this noise is awsome > and sounds like I am flying a five o'clock charlie in korea. good luck. > on two of my blades you can see the cloth and one has a smaller tip. told > wd this and they didnt do anything but grind them down further. gotta > prove it first. will think twice about my next set of blades. ted cowan, > alabama, slingshot 912. p.s. if it werent for this harmonic problem I > think I have the perfect flying machine, zoom zoom. at least for me. > > >


    Message 3


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    Time: 05:26:56 AM PST US
    Subject: Re: 912 ULS starter
    From: "Thom Riddle" <riddletr@gmail.com>
    I believe the typical draw while cranking the 912ul is about 75 amps. I'm going to check mine today and will report back. 912ULS may be different. -------- Thom Riddle Buffalo, NY http://riddletr.googlepages.com/sportpilot-cfi http://riddletr.googlepages.com/a%26pmechanix A complex system that works is invariably found to have evolved from a simple system that works. - John Gaule Read this topic online here: http://forums.matronics.com/viewtopic.php?p=238289#238289


    Message 4


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    Time: 06:59:52 AM PST US
    From: Blumax008@aol.com
    Subject: Re: Harsh words about Rotax
    In a message dated 4/5/2009 1:35:32 P.M. Eastern Daylight Time, donaho1@verizon.net writes: I have a 503 now that hasn`t given be any problems at all. Granted it only has 60 hours on it but it has never skipped a beat. I put over 100 hours on a used 377 (total hours around 250) and it never had a problem My friend, if you own a Rotax 503 you are one very intelligent & lucky fellow! That motor will give you years & years of worry-free, enjoyable flying. Run that sucker wide open! It doesn't care a hoot! We tow hang gliders here in NW Florida using the 503. Mine has over 1,600 hours on it now with C-box, Pennzoil & Amoco Super Premium & still going strong. Will be 12 years old in September of this year. All with 3 tops. No major overhauls. I'll leave you with my maxim for 503 owners... IF IT AIN'T BROKE...DON'T FIX IT. I've since added a new one... GET OFF THE INTERNET & GO FLY! (which reminds me, I gotta' go fly!) Bill Catalina Ochlockonee Bay, Florida (on the coast south of Tallahassee) **************Worried about job security? Check out the 5 safest jobs in a recession. (http://jobs.aol.com/gallery/growing-job-industries?ncid=emlcntuscare00000003)


    Message 5


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    Time: 07:44:22 AM PST US
    From: "Jack B. Hart" <jbhart@onlyinternet.net>
    Subject: Re: blade harmonics
    At 05:53 AM 4/8/09 -0500, you wrote: > Ted, Have you considered trying a lower inertia propeller? Jack B. Hart FF004 Winchester, IN


    Message 6


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    Time: 08:23:35 AM PST US
    Subject: Re: blade harmonics
    From: Richard Girard <aslsa.rng@gmail.com>
    Ted, Have you considered getting a prop spacer and gaining a little space between the exhaust pipe opening and the prop blades? Rick On Wed, Apr 8, 2009 at 5:53 AM, Ted Cowan <tc1917@bellsouth.net> wrote: > > I still have the problem of harmonics with my blades on my slingshot. I > have narrowed it back down to the blades. even though they have been sent > back twice and super balanced by myself and lazer set, it is still there, > buzz buzz buzz. drives you nuts. put a good anr set in my helmet and that > makes it tolerable. friend has a new set of wd blades down in florida. > gotta get down there and put them on my plane. if it makes it go away I am > going after wd for new blades big time. this noise is awsome and sounds > like I am flying a five o'clock charlie in korea. good luck. on two of my > blades you can see the cloth and one has a smaller tip. told wd this and > they didnt do anything but grind them down further. gotta prove it first. > will think twice about my next set of blades. ted cowan, alabama, slingshot > 912. p.s. if it werent for this harmonic problem I think I have the perfect > flying machine, zoom zoom. at least for me. > >


    Message 7


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    Time: 08:23:36 AM PST US
    Subject: Re: blade harmonics
    From: "lucien" <lstavenhagen@hotmail.com>
    tc1917(at)bellsouth.net wrote: > I still have the problem of harmonics with my blades on my slingshot. I > have narrowed it back down to the blades. even though they have been sent > back twice and super balanced by myself and lazer set, it is still there, > buzz buzz buzz. drives you nuts. put a good anr set in my helmet and that > makes it tolerable. friend has a new set of wd blades down in florida. > gotta get down there and put them on my plane. if it makes it go away I am > going after wd for new blades big time. this noise is awsome and sounds > like I am flying a five o'clock charlie in korea. good luck. on two of my > blades you can see the cloth and one has a smaller tip. told wd this and > they didnt do anything but grind them down further. gotta prove it first. > will think twice about my next set of blades. ted cowan, alabama, slingshot > 912. p.s. if it werent for this harmonic problem I think I have the perfect > flying machine, zoom zoom. at least for me. Well I think I've found a possible culprit on my setup. There's a resonance between the engine/mount and the frequency at which the blades vibrate fore and aft. I discovered this yesterday by accident when I happened to tap one of the blades, the entire top of the plane went "thoom" like a drum in concert with the blade. And it sounds like that frequency is the frequency I'm hearing in the cab.... Also yesterday I went over the whole butt end of the plane to make sure nothing was loose or any problems with the mounts. No problemo. In my case it's clearly not a problem with the prop itself - it's just an interaction between it and this particular plane. The only option with the WD looks like changing the diameter and I've BTDT on a couple other planes (that means a few different sets of blades that all still do the same thing). Going down in diameter is not acceptable as I need the climb performance. And I can only go up another inch before I run out of safe clearance, doubtful an inch is going to do it. So it's time to get a little busier on this - next idea is a different prop type. That's the only way I can see right now to change the blade resonance enough, get the whole fundamental changed back there. LS -------- LS Titan II SS Read this topic online here: http://forums.matronics.com/viewtopic.php?p=238319#238319


    Message 8


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    Time: 09:06:29 AM PST US
    Subject: Re: Harsh words about Rotax
    From: "lucien" <lstavenhagen@hotmail.com>
    FWIW, Regarding the 503, I'm still building up trust in my 912 in hopes it measures up to my 503's in terms of reliability ;). But seriously, I've had more trouble with 4-strokes (not the 912) over the years than I've had with any of my 503's. They usually rot away long before they wear out or do something catastrophic. Even at 4 large, the 503 is still the best deal in an aviation engine available today. The only 2-stroke rotax I"m not too fond of is the 582. It's a little less durable than the aircooled motors. And so far my 912 has been a good engine, but due to the far higher parts costs, I'm significantly more paranoid about something breaking in it. I hope it holds together as well as my 2 447's and can't remember how many 503's..... (It is nice that the crank seals aren't leaking after a couple hundred hours tho)..... LS -------- LS Titan II SS Read this topic online here: http://forums.matronics.com/viewtopic.php?p=238328#238328


    Message 9


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    Time: 09:20:29 AM PST US
    From: "pj.ladd" <pj.ladd@btinternet.com>
    Subject: Victoria Falls
    Hi, hope this works!. This should be 3 pics of me flying at the Victoria Falls in a weightshift while in Zambia a couple of weeks ago. Quite exciting flying around and through the spray which was so atomised that the cloud just kept going up until it reached cloudbase. Flew up the Zambesi at under 500 ft looking for hippos, crocs. etc with no luck, but did find a herd of giraffes. Cheers Pat


    Message 10


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    Time: 09:36:27 AM PST US
    From: "John Hauck" <jhauck@elmore.rr.com>
    Subject: Re: Harsh words about Rotax
    > Regarding the 503, I'm still building up trust in my 912 in hopes it measures up to my 503's in terms of reliability ;). > > LS If you fly it enough, I bet you'll gain a little confidence in the 912. I've been extremely lucky to have had the opportunity to enjoy many hours, over the last 25 years, in Kolb airplanes. During that time, the first eight years flying my own two strokes, and 15 years flying my own 912 engines. In between crashes and rebuilds, I put significant time on Kolb Factory two and four strokes, of which, I never had either type engine in a factory airplane quit. With 2,660.00 hours of flying my own 912 series engines, I never had a problem with the engine, although I have had a couple problems with the pilot getting lazy and not checking fuel after topping off from unreliable sources, 1994 and 1998. Based on the places my 912 engines have pushed me, I'd say I have quite a bit of confidence in their reliability, and have also helped prove that reliability. As far as high price of parts for 912 engines, aren't all engine parts expensive now? Also, I haven't had to buy parts for my 912 engines. The basic engine is close to bullet proof and do not wear out major parts. Accessories, yes, they must be replaced, like spark plugs, oil filters, oil, carb parts (probably weakest link of the 912), spark plug connectors, etc. However, it takes a lot of flying to go through these parts like some of us have done over the years. I think getting out there and grinding out hour after hour in a short period of time, 232 hours in 41 total days for example, and many other high flying hour, short number of day trips, is an excellent example of the 912 engine's reliability. Don't think I'd bite off extremely long cross country flights, flying over the inhospitible terrain, with a two stroke of any make. In fact, there is no way I would have made the 2004 flight to and in Alaska with one. Not that I do not like them, but I know the difference between two and four. As far as 4 strokes rotting away from non-use, I don't think so. I have antique tractors that are much older than me, that have sat and waited most of their life, still running like the day they were built. ;-) I might add, my 912ULS has not seen much use since last summer, but it will get out there and run like it should today, if the rats haven't eaten it since I last checked. john h mkIII


    Message 11


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    Time: 09:40:28 AM PST US
    From: "John Hauck" <jhauck@elmore.rr.com>
    Subject: Re: Victoria Falls
    Patrick: Do you fly the trike from the back seat? Notice a nice reliable 912 powering the trike. Nice photos of the Falls. I envy your travels. I have never been to Africa, but would love to do some serious flying there, if I could afford the bill. john h mkIII This should be 3 pics of me flying at the Victoria Falls in a weightshift while in Zambia a couple of weeks ago. Quite exciting flying around and through the spray which was so atomised that the cloud just kept going up until it reached cloudbase. Flew up the Zambesi at under 500 ft looking for hippos, crocs. etc with no luck, but did find a herd of giraffes. Cheers Pat


    Message 12


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    Time: 09:40:51 AM PST US
    From: Dana Hague <d-m-hague@comcast.net>
    Subject: Re: blade harmonics
    At 11:22 AM 4/8/2009, lucien wrote: >Well I think I've found a possible culprit on my setup. There's a >resonance between the engine/mount and the frequency at which the blades >vibrate fore and aft....it's clearly not a problem with the prop itself - >it's just an interaction between it and this particular plane. If that's the case, going to a slightly stiffer or softer engine mount rubber isolator might help, change the resonant frequency. If it's a pulsating mmmmMMMmmmmMMMmmmmMMMmmmm, though, an exhaust/prop interaction seems the more likely culprit. Comparing the frequency of the cycle with the engine and prop rpm's may help to narrow it down. -Dana -- Welcome to the Federal Bureau for Reducing Bureaucracy!


    Message 13


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    Time: 09:43:34 AM PST US
    From: william sullivan <williamtsullivan@att.net>
    Subject: Re: Victoria Falls
    - Pat- Nice photos!- Thank you. - ------------------------- ----------- Bill Sullivan ------------------------- ----------- Windsor Locks, Ct. do not archive


    Message 14


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    Time: 10:16:51 AM PST US
    Subject: Re: Harsh words about Rotax
    From: "lucien" <lstavenhagen@hotmail.com>
    John Hauck wrote: > > > As far as high price of parts for 912 engines, aren't all engine parts > expensive now? Also, I haven't had to buy parts for my 912 engines. The > basic engine is close to bullet proof and do not wear out major parts. > Accessories, yes, they must be replaced, like spark plugs, oil filters, oil, > carb parts (probably weakest link of the 912), spark plug connectors, etc. > However, it takes a lot of flying to go through these parts like some of us > have done over the years. > john h > > mkIII Actually, the value of the 912 overall is fixing to go up as the official TBO is being raised to 2000 hours, that according to Ronnie Smith IIRC. And actually, for 100hp, with a 2000 hour TBO the 912ULS is probably going to be the highest bang/buck available in that power range if it isn't already. And that TBO is pessimistic from what I've heard of the engines in the field, particularly at flight schools, where they go for as long as 3000 hours. I try to run mine up to operating temperature at least once every 2 weeks (and usually every week) to keep any possibility of corrosion away. Even if it's a trip around the pattern in the holes between the 40knot winds..... So far so good on mine at a little over 300 hours..... LS -------- LS Titan II SS Read this topic online here: http://forums.matronics.com/viewtopic.php?p=238345#238345


    Message 15


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    Time: 10:27:54 AM PST US
    Subject: Re: blade harmonics
    From: "lucien" <lstavenhagen@hotmail.com>
    Dana wrote: > > If that's the case, going to a slightly stiffer or softer engine mount > rubber isolator might help, change the resonant frequency. > > If it's a pulsating mmmmMMMmmmmMMMmmmmMMMmmmm, though, an exhaust/prop > interaction seems the more likely culprit. Comparing the frequency of the > cycle with the engine and prop rpm's may help to narrow it down. > > -Dana > > -- > Welcome to the Federal Bureau for Reducing Bureaucracy! Yeah it's a pulsating thing like you describe, it could very well be aggravated by exhaust pulses. I do have a 3" extension installed tho and the blades are a good ways away from the exhaust outlet. The lower frequency doesn't seem to correspond to anything that I can tell, though a wild guess is it coincides with the alignment of the crank and prop as it rotates around the 2.43 gear ratio. this _does_ change in frequency with rpm so that could be it. The higher frequency hum seems to be a constant frequency and, I think I repeat think..., it's the same frequency as the "thoom" I get when tapping the blade on the ground. That's probably the resonance of the blades/engine/mount etc. Next I go back up (if we ever get flyable weather again) I'm going to listen to it some more. No idea if different compliance mounts are available on my mount.... I'll try to research that and see..... LS -------- LS Titan II SS Read this topic online here: http://forums.matronics.com/viewtopic.php?p=238347#238347


    Message 16


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    Time: 10:49:49 AM PST US
    From: "Dennis Watson" <djwatson@olg.com>
    Subject: Re: blade harmonics
    LS, Ran into something like this years ago when I still had a Kolb, try to direct your exhaust up down or to the side if you haven't already done so, also, unbolt the prop hub and rotating it by one bolt hole and see if it makes a difference V/R, Dennis from MD. ----- Original Message ----- From: "lucien" <lstavenhagen@hotmail.com> Sent: Wednesday, April 08, 2009 1:27 PM Subject: Kolb-List: Re: blade harmonics > > > Dana wrote: >> >> If that's the case, going to a slightly stiffer or softer engine mount >> rubber isolator might help, change the resonant frequency. >> >> If it's a pulsating mmmmMMMmmmmMMMmmmmMMMmmmm, though, an exhaust/prop >> interaction seems the more likely culprit. Comparing the frequency of >> the >> cycle with the engine and prop rpm's may help to narrow it down. >> >> -Dana >> >> -- >> Welcome to the Federal Bureau for Reducing Bureaucracy! > > > Yeah it's a pulsating thing like you describe, it could very well be > aggravated by exhaust pulses. I do have a 3" extension installed tho and > the blades are a good ways away from the exhaust outlet. > > The lower frequency doesn't seem to correspond to anything that I can > tell, though a wild guess is it coincides with the alignment of the crank > and prop as it rotates around the 2.43 gear ratio. this _does_ change in > frequency with rpm so that could be it. > > The higher frequency hum seems to be a constant frequency and, I think I > repeat think..., it's the same frequency as the "thoom" I get when tapping > the blade on the ground. That's probably the resonance of the > blades/engine/mount etc. > > Next I go back up (if we ever get flyable weather again) I'm going to > listen to it some more. > > No idea if different compliance mounts are available on my mount.... I'll > try to research that and see..... > > LS > > -------- > LS > Titan II SS > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=238347#238347 > > >


    Message 17


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    Time: 11:08:48 AM PST US
    Subject: Re: blade harmonics
    From: "lucien" <lstavenhagen@hotmail.com>
    djwatson(at)olg.com wrote: > LS, > > Ran into something like this years ago when I still had a Kolb, try to > direct your exhaust up down or to the side if you haven't already done so, > also, unbolt the prop hub and rotating it by one bolt hole and see if it > makes a difference > > V/R, > Dennis from MD. > > > --- Oh yeah, this may be possible with the exhaust now that I thinka bout it. Ironically, my FS II had this exact same prop (WD 68" taper).... completely different airframe and motor but it was totally silky smooth with no vibration whatsoever..... just that healthy 503 howl.... ;) LS -------- LS Titan II SS Read this topic online here: http://forums.matronics.com/viewtopic.php?p=238352#238352


    Message 18


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    Time: 11:41:57 AM PST US
    From: "Larry Cottrell" <lcottrell@fmtcblue.com>
    Subject: Re: Victoria Falls
    I am thinking that he should adopt me and take me along on some of these trips. Larry C ----- Original Message ----- From: John Hauck To: kolb-list@matronics.com Sent: Wednesday, April 08, 2009 10:39 AM Subject: Re: Kolb-List: Victoria Falls Patrick: Do you fly the trike from the back seat? Notice a nice reliable 912 powering the trike. Nice photos of the Falls. I envy your travels. I have never been to Africa, but would love to do some serious flying there, if I could afford the bill. john h mkIII This should be 3 pics of me flying at the Victoria Falls in a weightshift while in Zambia a couple of weeks ago. Quite exciting flying around and through the spray which was so atomised that the cloud just kept going up until it reached cloudbase. Flew up the Zambesi at under 500 ft looking for hippos, crocs. etc with no luck, but did find a herd of giraffes. Cheers Pat ------------------------------------------------------------------------- ----- Checked by AVG - www.avg.com 04/08/09 05:53:00


    Message 19


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    Time: 12:42:56 PM PST US
    From: "John Hauck" <jhauck@elmore.rr.com>
    Subject: Re: blade harmonics
    > Oh yeah, this may be possible with the exhaust now that I thinka bout it. > > Ironically, my FS II had this exact same prop (WD 68" taper).... > completely different airframe and motor but it was totally silky smooth > with no vibration whatsoever..... just that healthy 503 howl.... ;) > > LS Never heard of a Titan Exhaust/912 prop noise/vibration/harmonic problem. I experimented with the outlets on my Titan left, right, and straight up. No problems. I know of three Kolbs that flew with Rick Thomasson's exhaust designed for the Pulsar. All three suffered from a terrible rattling/noisy exhaust beat caused by the retreating blade hitting the downward aimed exhaust pipe on the right exhaust system. I knew I was going to have that problem so I cut the outlets perpendicular to the ground and eliminated the noise. There was no vibration or harmonic associated with this system. I know of three airplanes that have had this similar problem: a Titan with 912, a SS with 912, and a SS with 582. The SS with 582, with 3 blade warp drive, was caused by loose fabric on the inboard rear corner of the right wing. I don't know what Ted Cowan's problem is, probably disturbed air flow and the way it is hitting the prop blade, or blades. Items mounted in front of the prop all contribute to the way air flows to and through it. Ever play with an electric fan? Set one up, turn it on high, then start messing with the air flow to the blades. You'll get all kinds of very unusal complaints coming from those blades. Why wouldn't a pusher respond similarly? john h mkIII


    Message 20


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    Time: 02:35:58 PM PST US
    From: Dana Hague <d-m-hague@comcast.net>
    Subject: Re: blade harmonics
    FWIW, I get a similar pulsing hum at cruise rpm on my UltraStar. -Dana -- I hadda I LOVE WINDOWS sticker on my car...but it crashed.


    Message 21


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    Time: 02:38:36 PM PST US
    Subject: Re: 912 ULS starter
    From: "Thom Riddle" <riddletr@gmail.com>
    I don't know where I got the "typical draw while cranking the 912ul is about 75 amps." from but it was way off for our 912UL per testing this morning. Using clamp on ammeter I got ~13 amps current during cranking our 912UL at about 45-50F OAT. I hope this figure helps with at least a ballpark guestimate. -------- Thom Riddle Buffalo, NY http://riddletr.googlepages.com/sportpilot-cfi http://riddletr.googlepages.com/a%26pmechanix A complex system that works is invariably found to have evolved from a simple system that works. - John Gaule Read this topic online here: http://forums.matronics.com/viewtopic.php?p=238378#238378


    Message 22


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    Time: 02:54:43 PM PST US
    From: "frank.goodnight" <frank.goodnight@att.net>
    Subject: V.W.conversion
    Anyone have an idea wich would be the more satisfying , Great plains , Revmaster, or some other? Frank Goodnight Firestar 2 On Apr 8, 2009, at 4:38 PM, Thom Riddle wrote: > > I don't know where I got the "typical draw while cranking the 912ul > is about 75 amps." from but it was way off for our 912UL per testing > this morning. > > Using clamp on ammeter I got ~13 amps current during cranking our > 912UL at about 45-50F OAT. > > I hope this figure helps with at least a ballpark guestimate. > > -------- > Thom Riddle > Buffalo, NY > http://riddletr.googlepages.com/sportpilot-cfi > http://riddletr.googlepages.com/a%26pmechanix > > A complex system that works is invariably found to have evolved from > a simple system that works. > - John Gaule > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=238378#238378 > >


    Message 23


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    Time: 03:26:52 PM PST US
    Subject: now an actual Kolb question
    From: "lucien" <lstavenhagen@hotmail.com>
    What is the status of the new mark III? I.e. here it is with I believe John H. flying it: http://www.youtube.com/watch?v=T6LjOighew8 Just curious if testing is complete and TNK is selling it or did they abandon it or ? LS -------- LS Titan II SS Read this topic online here: http://forums.matronics.com/viewtopic.php?p=238384#238384


    Message 24


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    Time: 03:59:13 PM PST US
    From: Dave Kulp <undoctor@ptd.net>
    Subject: Re: Back to gascolators
    ** >to be a vacuum fitting on the top. Before I install it I need to know the >options/requirements re: the vacuum line? I.e., can it be plugged or is >it's use necessary for the gascolator to function properly? Vacuum doesn't seem likely... are you sure it's not a primer connection? -Dana I guarantee you I'm not sure of anything. Following is a web address and the second entry down has a picture of the same setup. Maybe that would give you a hint. I asked the mechanic at Queen City, where I've been flying out of and he didn't know. He's worked on military jets for years and now is the first he's worked GA, so the setup may be peculiar to home builts... ** http://www.vansairforce.com/community/showthread.php?t=5513 Dave


    Message 25


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    Time: 04:28:04 PM PST US
    From: TheWanderingWench <thewanderingwench@yahoo.com>
    Subject: Re: Victoria Falls
    Pat - The shot of you over the Falls is incredible. You ought to make a banner and put it up over your house! :>) Arty www.LessonsFromTheEdge.com/uladventure2009.htm "Life's a daring adventure or nothing" Helen Keller "I refuse to tip toe through life just to arrive safely at death." --- On Wed, 4/8/09, pj.ladd <pj.ladd@btinternet.com> wrote: > From: pj.ladd <pj.ladd@btinternet.com> > Subject: Kolb-List: Victoria Falls > To: kolb-list@matronics.com > Date: Wednesday, April 8, 2009, 9:15 AM > > > > > > > > Hi, > hope this > works!. > > This should be 3 pics of > me flying at the Victoria > Falls in a weightshift while in Zambia a couple of weeks > ago. Quite exciting > flying around and through the spray which was so atomised > that the cloud just > kept going up until it reached cloudbase. > Flew up the Zambesi at > under 500 ft looking for > hippos, crocs. etc with no luck, but did find a herd of > giraffes. > > Cheers > > Pat >


    Message 26


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    Time: 05:14:04 PM PST US
    From: "John Hauck" <jhauck@elmore.rr.com>
    Subject: Re: now an actual Kolb question
    > What is the status of the new mark III? I.e. here it is with I believe John H. flying it: > > http://www.youtube.com/watch?v=T6LjOighew8 > > Just curious if testing is complete and TNK is selling it or did they > abandon it or ? > > LS That clip was shot during the Dealers Showcase at Sun and Fun 2008. My buddy Dick Rahill missed the pilots briefing and they would not let him fly. Normally, we would fly the FSII and MKIII at the same time during the demonstration. For many years, it was me, Dick, and Dennis Souder, doing the Showcase. It was extremely windy, gusty, and turbulent, during this flight. Those of you who have flown Lakeland during S&F will know what I mean. However, it is not readily noticeable in the clip. I spent three weeks in London testing the MKIIIx March 2008. Testing was completed and the 40 hours flown off. Weather was cold and wet, along with wind, during that period. I think the MKIIIx is still for sale. It has been featured on Ebay, but did not make the minimum. It is a good flying airplane, has full flaps, ailerons operated by Morris Cables, nice comfy fiberglass seats molded into one piece. I'm not ready to trade my mkIII for one, but the X is a good airplane. john h mkIII


    Message 27


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    Time: 05:26:14 PM PST US
    From: herb <herbgh@nctc.com>
    Subject: Re: now an actual Kolb question
    Its a deal !!! Could be yours for a very good price...Call Travis..!! :-) Herb At 05:26 PM 4/8/2009, you wrote: > >What is the status of the new mark III? I.e. here it is with I >believe John H. flying it: > >http://www.youtube.com/watch?v=T6LjOighew8 > >Just curious if testing is complete and TNK is selling it or did >they abandon it or ? > >LS > >-------- >LS >Titan II SS > > >Read this topic online here: > >http://forums.matronics.com/viewtopic.php?p=238384#238384 > >


    Message 28


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    Time: 05:33:39 PM PST US
    From: "John Hauck" <jhauck@elmore.rr.com>
    Subject: Re: now an actual Kolb question
    > Its a deal !!! Could be yours for a very good price...Call > Travis..!! :-) Herb It sure is. Forgot to mention it is powered with a new 912ULS with Titan SS exhaust system, Warp Drive 3 blade fast taper prop and no wierd vibrations or harmonics. john h mkIII


    Message 29


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    Time: 05:36:25 PM PST US
    From: Mike Welch <mdnanwelch7@hotmail.com>
    Subject: Back to gascolators
    Dave=2C That port you refer to a 1/8" NPT hole=2C isn't it? If it is=2C it is th e primer port. If you do not need a primer=2C you don't need the port. Pl ug it. Gascolaters have such a wide range of engines they're expected to work wi th. It's easier to machine the hole=2C and thread it=2C than try to create two types of gascolators=2C those with the hole=2C and those without. If you go to www.aircraftspruce.com=2C and read the descriptions of the g ascolators they offer=2C you'll see the primer port mentioned. Mike Welch MkIII From: undoctor@ptd.net Subject: Re: Kolb-List: Back to gascolators >to be a vacuum fitting on the top. Before I install it I need to know th e >options/requirements re: the vacuum line? I.e.=2C can it be plugged or is >it's use necessary for the gascolator to function properly? Vacuum doesn't seem likely... are you sure it's not a primer connecti on? -Dana I guarantee you I'm not sure of anything. Following is a web address and t he second entry down has a picture of the same setup. Maybe that would give you a hint. I asked th e mechanic at Queen City=2C where I've been flying out of and he didn't know. He's worked on military jets for years and now is the first he's worked GA=2C so the setup may be peculiar to home bui lts... http://www.vansairforce.com/community/showthread.php?t=5513 Dave _________________________________________________________________ Windows Live=99: Keep your life in sync. http://windowslive.com/explore?ocid=TXT_TAGLM_WL_allup_1a_explore_042009


    Message 30


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    Time: 06:56:57 PM PST US
    Subject: Re: Back to gascolators
    From: "JetPilot" <orcabonita@hotmail.com>
    Mine also has the thrid port on top, its the primer port.. Plug it !!! Mike -------- &quot;NO FEAR&quot; - If you have no fear you did not go as fast as you could have !!! Kolb MK-III Xtra, 912-S Read this topic online here: http://forums.matronics.com/viewtopic.php?p=238419#238419


    Message 31


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    Time: 07:34:28 PM PST US
    From: "Jack B. Hart" <jbhart@onlyinternet.net>
    Subject: Re: Back to gascolators
    From: Dave Kulp <undoctor@ptd.net> Dave, It is a primer tap. See: http://www.andair.co.uk/pdfs/GAS01.pdf Jack B. Hart FF004 Winchester, IN


    Message 32


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    Time: 07:59:00 PM PST US
    From: herb <herbgh@nctc.com>
    Subject: Mixture control...
    Jack See your post and am reminded...how is the mixture control coming...? IMHO...not only does it promise a bit better fuel burn through better mixture control...but also may allow us to dial out the egt peak as we drop below 5k rpms? Perhaps make the engine less susceptible to seizures...? Herb


    Message 33


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    Time: 08:02:43 PM PST US
    From: "Richard & Martha Neilsen" <NeilsenRM@comcast.net>
    Subject: Re: V.W.conversion
    Frank "Most satisfying" ?? You get the most thrust by no small margin with a reduction drive VW engine. Revmaster, Happy(sp), AreoVee, and GP direct drive engines will not except the Valley redrive so they would not be very "satisfying". Great Plains redrive engines and properly built big dune buggy engines will except the Valley redrive. They give very "satisfying" thrust in Kolb airplanes. A big dune buggy engine built super strong with a mild cam and valve springs and a few aircraft conversion parts would be less expensive and still be powerful and reliable so that would be and is very "satisfying" for me. There are some gear reduction drives that may be suitable for VWs that might fit work on direct drive VW aircraft conversion engines but???? Rick Neilsen Redrive VW powered MKIIIC ----- Original Message ----- From: "frank.goodnight" <frank.goodnight@att.net> Sent: Wednesday, April 08, 2009 5:53 PM Subject: Kolb-List: V.W.conversion > <frank.goodnight@att.net> > > Anyone have an idea wich would be the more satisfying , Great plains , > Revmaster, or some other? > Frank Goodnight > Firestar 2


    Message 34


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    Time: 08:02:43 PM PST US
    Subject: Re: now an actual Kolb question
    From: "lucien" <lstavenhagen@hotmail.com>
    John Hauck wrote: > > > It sure is. > > Forgot to mention it is powered with a new 912ULS with Titan SS exhaust > system, Warp Drive 3 blade fast taper prop and no wierd vibrations or > harmonics. > > john h > mkIII lol..... There's actually a video that Travis made doing a walkaround of what looks like that plane. I watched it 3 times straight in a row at work today (when I was supposed to be working). I did notice the 4" saber extension and my prop on the motor..... I love my titan but I've always been a kolb fan and a fanatic after my FS II (which I still regret having had to sell). So I've been curious how the new Mark III had come out. Wonder if any of the new style have been sold and are being built? I watched the video of the firefly as well, which looks like it probably was flown on the same day. The gusty/thermally weather was definitely evident in that video........ LS -------- LS Titan II SS Read this topic online here: http://forums.matronics.com/viewtopic.php?p=238431#238431


    Message 35


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    Time: 08:21:04 PM PST US
    From: "John Hauck" <jhauck@elmore.rr.com>
    Subject: Re: now an actual Kolb question
    > I watched the video of the firefly as well, which looks like it probably was flown on the same day. The gusty/thermally weather was definitely evident in that video........ > > LS The Fire Fly video was made several years ago at Lakeland. It was a beautiful airplane built and painted by Bryan Milborn. I was also fortunate to be the demo pilot for this FF. I had forgotten how windy and rough the air was that year. The video clearly demonstrates I had my hands full, but the little FF performed like a champ that it is. A young lady bought the FF for her 92 year old adventurer grand father at the show. I never got to fly it again, nor did I ever see it again. I did hear that it was neglected, not flown, and considerable damage was done by children playing in it. It was a fantastic show plane and well as a flyer. http://www.youtube.com/watch?v=9SFhiQRlGwA&feature=related john h mkIII


    Message 36


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    Time: 09:08:40 PM PST US
    From: jerb <ulflyer@verizon.net>
    Subject: Re: V.W.conversion
    See Valley Engineering - not sure if they offer full VW engine but they have a nice redrive for the VW engine - the difference of engine with one is quite noticeable if you seen a before the redrive and then after. Wow! jerb At 04:53 PM 4/8/2009, you wrote: > >Anyone have an idea wich would be the more satisfying , Great plains , >Revmaster, or some other? >Frank Goodnight >Firestar 2 >On Apr 8, 2009, at 4:38 PM, Thom Riddle wrote: > >> >>I don't know where I got the "typical draw while cranking the 912ul >>is about 75 amps." from but it was way off for our 912UL per testing >>this morning. >> >>Using clamp on ammeter I got ~13 amps current during cranking our >>912UL at about 45-50F OAT. >> >>I hope this figure helps with at least a ballpark guestimate. >> >>-------- >>Thom Riddle >>Buffalo, NY >>http://riddletr.googlepages.com/sportpilot-cfi >>http://riddletr.googlepages.com/a%26pmechanix >> >>A complex system that works is invariably found to have evolved from >>a simple system that works. >> - John Gaule >> >> >> >> >>Read this topic online here: >> >>http://forums.matronics.com/viewtopic.php?p=238378#238378 >> >> >> >> >> >> >> >> >> > >


    Message 37


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    Time: 09:10:10 PM PST US
    From: "b young" <by0ung@brigham.net>
    Subject: Re: 912 ULS starter
    Using clamp on ammeter I got ~13 amps current during cranking our 912UL at about 45-50F OAT. >>>>>>>>>>>>.. I have never seen a clamp on dc amp meter. Boyd




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