Kitfox-List Digest Archive

Sun 07/02/06


Total Messages Posted: 34



Today's Message Index:
----------------------
 
     1. 01:20 AM - Re: Re: 912s vs. Jabiru 3300? (Michel Verheughe)
     2. 02:11 AM - Re: 912s vs. Jabiru 3300 (Michael Gibbs)
     3. 03:15 AM - Re: Re: 912s vs. Jabiru 3300 (Michel Verheughe)
     4. 03:55 AM - Re: Jackson Fly-In (Lynn Matteson)
     5. 04:26 AM - Re: DAR Inspection (kirk hull)
     6. 06:06 AM - Re: Trim servo (Dan Billingsley)
     7. 08:55 AM - Kitfox Newbie Questions (brad@vision-technology.com)
     8. 10:19 AM - Re: Jackson Fly-In (jeff puls)
     9. 10:19 AM - Re: Re: Jackson Fly-In (jeff puls)
    10. 10:20 AM - Shut Down Procedures (jeff puls)
    11. 10:50 AM - Rotax vs. Jabiru (Lowell Fitt)
    12. 10:52 AM - Electronic Moudle Shock Mounts! (Marwynne Kuhn)
    13. 11:09 AM - Re: Shut Down Procedures (Clint Bazzill)
    14. 11:21 AM - Re: Rotax vs. Jabiru (Michel Verheughe)
    15. 11:21 AM - Re: Electronic Moudle Shock Mounts! (Clint Bazzill)
    16. 11:32 AM - New member to the club! (Michel Verheughe)
    17. 12:42 PM - Re: Rotax vs. Jabiru (darinh)
    18. 12:51 PM - Re: 912s vs. Jabiru 3300? (darinh)
    19. 01:05 PM - Re: 912s vs. Jabiru 3300 (darinh)
    20. 01:23 PM - Re: New member to the club! (kurt schrader)
    21. 01:37 PM - Re: Re: 912s vs. Jabiru 3300 (kurt schrader)
    22. 01:38 PM - Re: Re: 912s vs. Jabiru 3300 (kurt schrader)
    23. 01:42 PM - Re: Re: 912s vs. Jabiru 3300? (kurt schrader)
    24. 01:50 PM - Re: Warp drive hub.Very Strange (kurt schrader)
    25. 01:54 PM - Re: speed and drag reduction (kurt schrader)
    26. 02:48 PM - Re: Electronic Moudle Shock Mounts! (Marwynne Kuhn)
    27. 04:58 PM - Re: Re: 912s vs. Jabiru 3300? (Clint Bazzill)
    28. 06:39 PM - Re: 912s vs. Jabiru 3300? (darinh)
    29. 06:47 PM - Re: 912s vs. Jabiru 3300 (darinh)
    30. 07:15 PM - Re: Trim servo (wingsdown)
    31. 09:28 PM - Re: Re: 912s vs. Jabiru 3300? (Clint Bazzill)
    32. 09:52 PM - Re: Warp drive hub.Very Strange (John Anderson)
    33. 09:55 PM - Re: speed and drag reduction (John Anderson)
    34. 11:28 PM - Re: 912s vs. Jabiru 3300? (Tom Tomlin)
 
 
 


Message 1


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    Time: 01:20:30 AM PST US
    From: Michel Verheughe <michel@online.no>
    Subject: Re: 912s vs. Jabiru 3300?
    --> Kitfox-List message posted by: Michel Verheughe <michel@online.no> On Jul 2, 2006, at 6:43 AM, darinh wrote: > I believe Michel here on the forums is the only one I know with the > Jabiru and he is in Europe. ... but you're still welcome to visit me in Norway, Darin! If you take an airliner to Torp ENTO, I can be there to meet you with my Kitfox! :-) I think both Rotax and Jabiru are fine engines. Much wisdom has been said in this tread and I have little to add, if it isn't an observation: Jabiru sells aircraft and engines. If you install a Jabiru engine on another aircraft, do it as Jabiru recommends. It will be easy and trouble-free for years to come. On the Jabiru Yahoo list, those who have had problems are those who think they know better that the Jabiru engineers and use unorthodox solutions. Last; as for any air-cooled engine, the shaping of the cowling is the alpha and omega of temperature management. You can install a Jabiru engine in maybe one day, but you may need many days in epoxy and fiberglass to shape a good cowling. Cheers, Michel


    Message 2


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    Time: 02:11:59 AM PST US
    From: Michael Gibbs <MichaelGibbs@cox.net>
    Subject: Re: 912s vs. Jabiru 3300
    --> Kitfox-List message posted by: Michael Gibbs <MichaelGibbs@cox.net> >But the Rotax has the problems often talked about on our site. >Thrown carbs, shaking start, cracks and stuff. It just makes me >think the Jabber is a bit better. Anyone following the light sport category developments of the last few years will note that the Rotax 912 and 912S dominate the field. There are also certified aircraft (such as the Diamond Katana) flying behind certified versions of the 912. There must be a reason they are so popular with manufacturers. I am no expert on the Jabirus but from what I have heard from members of the Desert Fox Squadron, the 4-stroke Rotax engines are lighter, produce more thrust, and burn less fuel. Murle Williams told me today of a couple of friends of his that had 912-powered 'foxes that flew with a Jabiru-powered 'fox of the same model and configuration on a cross country trip. The Rotax-powered planes had to slow down by about 10 mph for the Jabiru to keep up and when they landed, the latter took on significantly more fuel. There is no perfect solution to any problem, and the 912 family is not perfect either. But the problems mentioned above all have solutions and I'm sure the 3300 has problems as well. As for me, my last 'fox had a 912S and the next one will as well. My Model IV-1200 with Ivo medium prop could launch in 120 feet (solo), sustain a 40 degree climb angle, hit Vne (140 mph) in level flight, and sipped gas like it was something expensive...wait...I guess it is. Empty weight came in at 660 pounds. >I simply want to have a few more ponies than 100 so I can get a bit >more cruise out of the airplane... Additional horsepower is not what you need to increase your cruise speed, it's additional thrust. More horsepower MIGHT give you more thrust but it depends upon a lot of other factors as well. As with all opinions, this one is worth what you paid for it. :-) Mike G. N728KF


    Message 3


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    Time: 03:15:42 AM PST US
    From: Michel Verheughe <michel@online.no>
    Subject: Re: 912s vs. Jabiru 3300
    --> Kitfox-List message posted by: Michel Verheughe <michel@online.no> On Jul 2, 2006, at 11:09 AM, Michael Gibbs wrote: > from what I have heard from members of the Desert Fox Squadron, the > 4-stroke Rotax engines are lighter, produce more thrust, and burn less > fuel. I don't know, Mike, since I never had a 912 but I think it would be strange that a Rotax, with its gearbox and water cooling system is lighter than a Jabiru. My fuel consumption at cruise speed (Kitfox 3) is about 12 liters per hour. How does that compare to a 80 HP Rotax? Here is an interesting link from UK: http://www.sportair.co.uk/cgi-bin/Page87L2.htm Cheers, Michel


    Message 4


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    Time: 03:55:55 AM PST US
    From: Lynn Matteson <lynnmatt@jps.net>
    Subject: Re: Jackson Fly-In
    --> Kitfox-List message posted by: Lynn Matteson <lynnmatt@jps.net> I just re-sent them, Jeff. I sent them through your personal address...again, let me know if they make it. Lynn do not archive On Saturday, July 1, 2006, at 10:25 PM, jeff puls wrote: > --> Kitfox-List message posted by: "jeff puls" <pulsair@mindspring.com> > > Lynn, > Didn't come through. Thanks anyway. Jeff > ----- Original Message ----- Sent: Saturday, July 01, 2006 5:58 PM


    Message 5


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    Time: 04:26:02 AM PST US
    From: "kirk hull" <kirkhull@sbcglobal.net>
    Subject: DAR Inspection
    --> Kitfox-List message posted by: "kirk hull" <kirkhull@sbcglobal.net> I know the feeling 205AK was signed off a little over a week ago. It has 5 hours on it now but I have yet to fly it yet. I have very little tail wheel time and thought it best to let someone with more experiance fly off the 40 so I can use an instructor for my first flight. You are lucky to be able to fly with someone else in a similar plane to get the feel of it ---Original Message----- [mailto:owner-kitfox-list-server@matronics.com]On Behalf Of Guy Buchanan Sent: Saturday, July 01, 2006 11:58 PM --> Kitfox-List message posted by: Guy Buchanan <bnn@nethere.com> At 11:06 AM 7/1/2006, you wrote: >What's that? Two years to make it fly and 11 to make >it look that good??? I suspect it will fly on >pride and use lift as a backup. Thanks for all the kind words. Yes, I'm excited, because more and more I'm thinking I'll do the first flight. Robert Harris was exceedingly kind to me today, taking me up for an hour or so and even letting me try to land his O-200 series 5. He's a very brave man. I'm going to get some more hours this week and do some more taxi tests to ascertain whether the cooling system's going to work. Thanks again, Guy Buchanan K-IV 1200 / 582-C / Warp / 99.9% done, thanks mostly to Bob Ducar. Do not archive


    Message 6


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    Time: 06:06:32 AM PST US
    From: Dan Billingsley <dan@azshowersolutions.com>
    Subject: Re: Trim servo
    Recently someone advertised a trim servo for $400.00...indicating that he spent $1000 on it new. Are we talking the elevator trim tab servo? I just checked on new ones and they can be purchased for under $200.00?? Dan AMuller589@aol.com wrote: These can also be repaired economically.


    Message 7


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    Time: 08:55:58 AM PST US
    From: brad@vision-technology.com
    Subject: Kitfox Newbie Questions
    --> Kitfox-List message posted by: brad@vision-technology.com Hi Everybody, I'm new here. Just sold my Cherokee 180 and am in the market for either a IV-1200 or a RANS S6. So I thought I might find some help on the IV-1200. 2 questions for starters: 1) Is the IV a relatively tame taildragger? I haven't flown TD in 4 years. Before that had 60 hours in a Fisher Classic and 140 hours in Hatz biplane. 2) What kind of cruise should I expect with a 80 or 100hp Rotax. (I know that varies a lot, just curious about general ranges). Thanks! Brad Mandan ND


    Message 8


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    Time: 10:19:36 AM PST US
    From: "jeff puls" <pulsair@mindspring.com>
    Subject: Re: Jackson Fly-In
    --> Kitfox-List message posted by: "jeff puls" <pulsair@mindspring.com> Lynn, They did. Thanks. They look great. Jeff ----- Original Message ----- Sent: Sunday, July 02, 2006 6:54 AM > --> Kitfox-List message posted by: Lynn Matteson <lynnmatt@jps.net> > > I just re-sent them, Jeff. I sent them through your personal > address...again, let me know if they make it. > > Lynn > do not archive > On Saturday, July 1, 2006, at 10:25 PM, jeff puls wrote: > >> --> Kitfox-List message posted by: "jeff puls" <pulsair@mindspring.com> >> >> Lynn, >> Didn't come through. Thanks anyway. Jeff >> ----- Original Message ----- Sent: Saturday, July 01, 2006 5:58 PM > > > > > > > > > > > > > >


    Message 9


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    Time: 10:19:36 AM PST US
    From: "jeff puls" <pulsair@mindspring.com>
    Subject: Re: Jackson Fly-In
    --> Kitfox-List message posted by: "jeff puls" <pulsair@mindspring.com> Great!! Count me in. Jeff ----- Original Message ----- Sent: Saturday, July 01, 2006 11:36 PM > --> Kitfox-List message posted by: "Richard Rabbers" <rira1950@yahoo.com> > > Jeff, > > Lynn took more photos than I did but here's a shot of him giving us a > listen to his Jabiru. > > Best wishes to you and your wife through the challenge. > > Bill Willyard suggested a brunch flyin at his base near Jennision MI this > fall. I didn't catch the date but will let you know. > > Maybe this can be Kitfox fall gathering. > I hope we can meet up then. > > -------- > Richard in SW Michigan > Model 1 / 618 - full-lotus floats (restoration) > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=44269#44269 > > > Attachments: > > http://forums.matronics.com//files/lynn_starting_up_196.jpg > > >


    Message 10


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    Time: 10:20:37 AM PST US
    From: "jeff puls" <pulsair@mindspring.com>
    Subject: Shut Down Procedures
    Clint, What is your shut down procedure for the 912ULS? Will it work on a 912UL. Mine shakes on shutdown. I even have the shorter spacers in the engine mount. Jeff Classic IV 912UL


    Message 11


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    Time: 10:50:38 AM PST US
    From: "Lowell Fitt" <lcfitt@sbcglobal.net>
    Subject: Rotax vs. Jabiru
    --> Kitfox-List message posted by: "Lowell Fitt" <lcfitt@sbcglobal.net> Michel, During the Rotax vs. NSI EA-81 weight dicussions, Murle Williams weighed both and the Rotax 912 UL came in at 169 lbs with fluids, so I am told by one of the Desert Fox guys. He put everything on a platform scale and weighed the whole thing in one shot. Accordint to Jabiru USA, the 2200 weighs 132 lbs. This appears to save about 30 lbs, but one weight is from a builder assist shop and the other is from the vendor (?), The 3300, which is the engine in the discussion is reported to weigh 178 lbs for a weight penalty of 11 lbs for the additional 20 hp and the Rotax 912 ULS weight is a bit higher - well under 10 lbs I believe. This is not bad if all that power can be transferred through the prop. Last week during the first leg of the Utah flight, I flew 3.5 hours and burned 14.2 US gallons and the line boy topped up the fuel tanks higher than I did on departure so actual fuel burn was a tad less than that. Using that number and the handy on line volume conversion and a calculator, I find that I burned 4.057 gallons per hour and the equivalent of 15.4 liters per hour - somewhat more than your 12 liters per hour, but keep in mind this included an initial climb to 10,500 feet to clear the Sierras - 9,300 foot (net) - and a cruise of about 105 mph. As the crow flies the distance was 314 miles and in actuality was probably closer to 325 miles or so given that we fly the highways when traversing the mountains and diverted a bit to Derby (LOL) because we thought three other airplanes - Rans, in fact - were expected to catch up to us there - they didn't so we pressed on. It is interesting that in the article you referenced - good read, incidentally - the cruise RPMs given for the Rotax (4750) is well below the Rotax allowable cruise of (5500). In fact Rotax recommends that cruise be kept above 5000 rpm due to gear box issues. My cruise was about 5000 during my trip. My only fault in the article is that data like that can be confusing. For example, there is a beautiful Grass Strip in Idaho called Johnson Creek. It is over 3000 ft long and 150 ft wide. All arrivals are made to the south to avoid over flying the donors private residence and all departures are made to the North for essentially the same reason. There is a ridge that extends partially into the valley floor to the East beyind the departure end of the runway with a fork in the river turning Eastward behind it. The main river turning gently Westward beyind the fork and beneath a high ridge we call the notch. A typical deperture is to lift off and immediately turn toward the right side of the canyon to catch any ridge lift there. The airplane seems to disappear behind the Eastern ridge as it follows the contour and reappears as it flies against the slope under the "notch" only to disappear again behind the ridge to the West as it follows the main river to gain altitude. The typical certified airplane departing will be about 1/3 the height of the "notch" as it passes Westward below it. One of our testesterone tests is to see who can climb straight through the "notch" We fly in loose formation so the conditions are all identical, as are likely the flying weights (Max Gross) as we all have our camping gear including camp chair, full fuel etc. I think this type of test could settle most questions, but not all, of course. It includes not only the climb performance of the airframe, engine and prop, but addresses cooling issues as well. On the upward slide of the Sierras last week some of the Rans lagged behind due to cooling issues. That was not engine related, but rather installation related as we were all running Rotax. If the airframe was all Kitfox, the same issues might surface, but it could then be more easily thought of as an engine issue as engine / prop mated to airframe is the real issue as far as performance is concerned. Then, of course would be the long straight flights at all sorts of altitudes in cruise and then the inevitable fuel stop and all the eyes on the fuel quantity gauge. We are, in fact, a competitive, though congeniel group. What does all this mean? Who knows. That is why I would look forward to a Jabiru powered airplane to accompany us to the back country to evaluate the performance in all perameters - cooling, fuel burn, climb, cruise etc. After the four or five trips there with the airplanes, engines and props, I think there are some conclusions that can be made. we just need more variety in engines. We have had a 582 on three of the trips, GSC, Warp as well as NSI CAP and PowerFin props, clean airplanes, and cleaned up airplanes. The rest of the engines have been 912 ULs and 912 ULSs, Kitfox IVs and Vs nothing newer than that and of course the Rans S6S and Rans S7. And of course the pilots - big differences can be seen there too. Some can just get more out of an airplane than others can. Personally, I would go again with the Rotax, but that is what I know and for me it has been near bulletproof. No cooling issues, never a thrown carburetor, no cracks anywhere, but to be strictly honest I suffered four stuck valves in Afton Wyoming two years ago on the way to Oshkosh - likely from the lead in the Avgas. This was solved by running a couple of quarts of ATF through the engine there - we couldn't find Marvel Mystery oil. I carry it faithfully now, but haven't used any, except in my lawnmower. Incidentally, I just went through 790 hours on the way home last week. Lowell ----- Original Message ----- Sent: Sunday, July 02, 2006 3:05 AM > --> Kitfox-List message posted by: Michel Verheughe <michel@online.no> > > On Jul 2, 2006, at 11:09 AM, Michael Gibbs wrote: > >> from what I have heard from members of the Desert Fox Squadron, the >> 4-stroke Rotax engines are lighter, produce more thrust, and burn less >> fuel. > > I don't know, Mike, since I never had a 912 but I think it would be > strange that a Rotax, with its gearbox and water cooling system is lighter > than a Jabiru. My fuel consumption at cruise speed (Kitfox 3) is about 12 > liters per hour. How does that compare to a 80 HP Rotax? Here is an > interesting link from UK: > > http://www.sportair.co.uk/cgi-bin/Page87L2.htm > > Cheers, > Michel > > > http://www.matronics.com/Navigator?Kitfox-List > http://wiki.matronics.com > >


    Message 12


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    Time: 10:52:59 AM PST US
    From: "Marwynne Kuhn" <marwynne@verizon.net>
    Subject: Electronic Moudle Shock Mounts!
    --> Kitfox-List message posted by: "Marwynne Kuhn" <marwynne@verizon.net> I found a number for the shock mounts that support my electronic modules on my 912ul. (Skystar part number 47000 shock mount). Any body have an idea where to purchase them. I have one that broke completely and two that are have dry rot. Any help would be appreciated, Thanks Guys Marwynne


    Message 13


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    Time: 11:09:06 AM PST US
    From: "Clint Bazzill" <clint_bazzill@hotmail.com>
    Subject: Shut Down Procedures
    --- MIME Errors - No Plain-Text Section Found --- A message with no text/plain MIME section was received. The entire body of the message was removed. Please resend the email using Plain Text formatting. HOTMAIL is notorious for only including an HTML section in their client's default configuration. If you're using HOTMAIL, please see your email application's settings and switch to a default mail option that uses "Plain Text". --- MIME Errors No Plain-Text Section Found ---


    Message 14


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    Time: 11:21:42 AM PST US
    From: Michel Verheughe <michel@online.no>
    Subject: Re: Rotax vs. Jabiru
    --> Kitfox-List message posted by: Michel Verheughe <michel@online.no> On Jul 2, 2006, at 7:48 PM, Lowell Fitt wrote: > Personally, I would go again with the Rotax, but that is what I know > and for me it has been near bulletproof. I am sure it is, Lowell. As I wrote earlier, both are fine engines, and, as you wrote yourself, we need different engines to choose from. The more the better. Cheers, Michel do not archive


    Message 15


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    Time: 11:21:42 AM PST US
    From: "Clint Bazzill" <clint_bazzill@hotmail.com>
    Subject: Electronic Moudle Shock Mounts!
    --- MIME Errors - No Plain-Text Section Found --- A message with no text/plain MIME section was received. The entire body of the message was removed. Please resend the email using Plain Text formatting. HOTMAIL is notorious for only including an HTML section in their client's default configuration. If you're using HOTMAIL, please see your email application's settings and switch to a default mail option that uses "Plain Text". --- MIME Errors No Plain-Text Section Found ---


    Message 16


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    Time: 11:32:39 AM PST US
    From: Michel Verheughe <michel@online.no>
    Subject: New member to the club!
    --> Kitfox-List message posted by: Michel Verheughe <michel@online.no> Hello lister, please welcome a new member to the ground loop club! Today, I went flying in the mountains with my son, he was the PIC. We landed at one of our favourite mountain airfield and ... it ended with a ground loop. A gentle one, at low speed. We couldn't figure out why it happened, until he gave throttle to taxi to the apron when I noticed the unusual nose up attitude and the rattling sound behind. ... we broke the tailwheel spring! Lift the tail, push the plane to the apron, assess the damages. The spring broke in two, the tailwheel is fine, the rudder has the typical damage of such an accident: some pipe welding, fabric gluing, paint, and it will be fine. One and half hour away by plane and three by car, what were we to do? Someone came along, presented himself as an Avid Flyer pilot with a car repair workshop nearby. He said he could provisory weld and reinforce the spring so that we could fly home. Which he did, and we flew home with no problem. But, what now? Can I get a new tailwheel spring for a model 3 somewhere? If not, what about the aluminium one? Could I get someone here to make me a custom-made spring? Is it wise? I know that has been discussed before on the list but I don't remember the "bottom line." Please refresh my memory as I wish to fix that ASAP since we are at the best season of the year for flying. Thanks in advance. Cheers, Michel


    Message 17


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    Time: 12:42:50 PM PST US
    From: "darinh" <gerns25@netscape.net>
    Subject: Re: Rotax vs. Jabiru
    --> Kitfox-List message posted by: "darinh" <gerns25@netscape.net> Lowell, I may very well be that "other" Kitfox to fly into Idaho with you in year or so if I go with the Jabiru. I am located out of Ogden, Utah and get into Idaho a number of times a year. It would be great to be able to compare a number of different engines on essentially the same airframe. However, I don't want to regret my engine choice as it is a very significant amount of money so I will keep doing my homework and hopefully make the best decision for me and my type of flying. Once the choice is made it is a bit difficult to swap as you know. Thanks for the input, Darin Read this topic online here: http://forums.matronics.com/viewtopic.php?p=44397#44397


    Message 18


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    Time: 12:51:56 PM PST US
    From: "darinh" <gerns25@netscape.net>
    Subject: Re: 912s vs. Jabiru 3300?
    --> Kitfox-List message posted by: "darinh" <gerns25@netscape.net> Michel, Thanks for the invite! I have an older brother who lived in Norway for a couple of years and speaks the language fluently. I have always wanted to take a fishing trip there with him so this may be a good excuse. If I get there, I will definately look you up. I appreciate you posts and comments on the Jabiru. The engine is definately a work of art and is simply beautiful being completely CNC machined...if overall looks of the engine were the only judging point, the Jabiru would be it for sure. About the cowling and cooling issues. I understand that it is imperative that cooling be addressed with any engine and that it may take more effort to properly fit baffling, etc. than it does to install the engine. My understanding is that Jabiru makes a complete FWF kit for the Series 7 and I would expect that they have included any baffling that would be necessary to ensure the engine runs within its limits. I will definately let you all know which route I choose. Thanks, Darin Read this topic online here: http://forums.matronics.com/viewtopic.php?p=44399#44399


    Message 19


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    Time: 01:05:21 PM PST US
    From: "darinh" <gerns25@netscape.net>
    Subject: Re: 912s vs. Jabiru 3300
    --> Kitfox-List message posted by: "darinh" <gerns25@netscape.net> Michel, My last Fox (Model III like yours) had the 80 hp 912 and it burned right around what you are getting with the 2200...about 3-3.5 gph at 75%. Mike, I understand that it is thrust that give you speed but as you said this is dependent on a whole lot more than your engine's power. It depends very much on the prop as well. That is why I am trying to figure out if the Jabiru is compatible with an in-flight adjustable prop. If so, I would think that you could get very good use out of the extra 20 hp by adjusting the prop and hence getting a bit more speed out of the airplane. I appreciate your input and as stated, have no problems with the 912 (I have owned one and loved it and will most likely go with another for this kit) I simply want to explore my options and I figure you guys can help me make and informed decision. Can anyone out there give me some real life data on a Series 7 with a 912S and an IFA prop? What kind of cruise do you see?...How about climb rates? Keep in mind that I am in Utah (4500' msl) so the sea level data doesn't mean much to me. I would like to find someone who has flown in and out of say...the Idaho backcountry with the setup mentioned. Anybody got any numbers...? Thanks, Darin Read this topic online here: http://forums.matronics.com/viewtopic.php?p=44400#44400


    Message 20


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    Time: 01:23:14 PM PST US
    From: kurt schrader <smokey_bear_40220@yahoo.com>
    Subject: Re: New member to the club!
    --> Kitfox-List message posted by: kurt schrader <smokey_bear_40220@yahoo.com> Michel, You just wanted to do it before I did! :-) Where I am hangared now, there is a nearly contunious 12-20 mph crosswind on the long runway. The grass rwy is into the wind more, but sometimes requires floats. I'll have plenty of chances to square dance at this airport. If you can find a good local spring builder, that would be my first choice for Norway. Isn't that how the name "Leaf Spring" came about??? :-) Well, even if not, the ability to make a good one should be age old. Better to make it several small leaves than one thick one so a break is a weaking instead of a failure. Then some springs from Aircraft Spruce are known to fit, if you want to send for them. Finally, if the New KitFox company has the sources, you can try to be an early customer. I don't think Grove makes the Aluminum ones any more. Oh, and check with the EuroFox company and see if they have a spring near you. Wish there was a carbon fiber spring out there.... Glad it was a minor problem, not one requiring full power to taxi. Kurt S. --- Michel Verheughe <michel@online.no> wrote: > Hello lister, please welcome a new member to the > ground loop club! ........... __________________________________________________


    Message 21


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    Time: 01:37:12 PM PST US
    From: kurt schrader <smokey_bear_40220@yahoo.com>
    Subject: Re: 912s vs. Jabiru 3300
    --> Kitfox-List message posted by: kurt schrader <smokey_bear_40220@yahoo.com> Darin, You sure know how to stir things up. People here marry their engines like they do their planes. Luckily you didn't ask which was better, a Fox or a Rans. :-) Someone here has a 3300 on a Fox, but I forgot who. I am not an owner of either engine choice, so I hope impartial. John McBean sells some inflight adjustables props and has some good data on them, if he is around and has the time to share. I think he has been flying with them himself. I think it is the weight and stiffness or resonance of the prop that is the issue with the Jabbers. The first engines had cranks that were too light for some of the props people tried. I think that was fixed, but a light weight prop is still required. You have the extra HP from the 3300, even with the greater fixed pitch prop loss. If you can use an adjustable, it should be a great performer. Closer to a 914 at much less price and repair costs. The Roo 3300 is certainly a simpler installation to work on, assuming you can remove the ducting easily. Kurt S. S-5/NSI turbo/CAP --- darinh <gerns25@netscape.net> wrote: > Michel, > > My last Fox (Model III like yours) had the 80 hp 912 > and it burned right around what you are getting with > the 2200...about 3-3.5 gph at 75%. > > Mike, > > I understand that it is thrust that give you speed > but as you said this is dependent on a whole lot > more than your engine's power. It depends very much > on the prop as well. That is why I am trying to > figure out if the Jabiru is compatible with an > in-flight adjustable prop. If so, I would think > that you could get very good use out of the extra 20 > hp by adjusting the prop and hence getting a bit > more speed out of the airplane. I appreciate your > input and as stated, have no problems with the 912 > (I have owned one and loved it and will most likely > go with another for this kit) I simply want to > explore my options and I figure you guys can help me > make and informed decision. > > Can anyone out there give me some real life data on > a Series 7 with a 912S and an IFA prop? What kind > of cruise do you see?...How about climb rates? Keep > in mind that I am in Utah (4500' msl) so the sea > level data doesn't mean much to me. I would like to > find someone who has flown in and out of say...the > Idaho backcountry with the setup mentioned. Anybody > got any numbers...? > > Thanks, > > Darin __________________________________________________


    Message 22


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    Time: 01:38:17 PM PST US
    From: kurt schrader <smokey_bear_40220@yahoo.com>
    Subject: Re: 912s vs. Jabiru 3300
    --> Kitfox-List message posted by: kurt schrader <smokey_bear_40220@yahoo.com> Michel, --- Michel Verheughe <michel@online.no> wrote: ............... > Here is an interesting link from UK: > > http://www.sportair.co.uk/cgi-bin/Page87L2.htm > > Cheers, > Michel Good link and story. I do think the engines are almost equal and you have to go with the little preferences, or less price. Kurt S. __________________________________________________


    Message 23


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    Time: 01:42:39 PM PST US
    From: kurt schrader <smokey_bear_40220@yahoo.com>
    Subject: Re: 912s vs. Jabiru 3300?
    --> Kitfox-List message posted by: kurt schrader <smokey_bear_40220@yahoo.com> Darin, --- darinh <gerns25@netscape.net> wrote: >..... It is my understanding that the 7 was built > with the 914 in mind and thus the much higher cruise > speeds...... I think the cruise speed increase was more a function of "true speed" gained at high altitude with a turbo than the greater HP. It probably indicated around the same as other fox's. If you really want that speed, you need the turbo and to fly high. Kurt S. __________________________________________________


    Message 24


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    Time: 01:50:00 PM PST US
    From: kurt schrader <smokey_bear_40220@yahoo.com>
    Subject: Warp drive hub.Very Strange
    --> Kitfox-List message posted by: kurt schrader <smokey_bear_40220@yahoo.com> I just stuck by the book on mine and the rigging turned out square on the ground and in flight, just slow. I used a gravity, not digital inclinometer (?)to get it right. I suspect some reflex of the flapperons is called for and I can do a bit quickly thru the flap linkage. On the to-do list. Thanks John, Kurt S. --- John Anderson <janderson412@hotmail.com> wrote: --------------------------------- --> Kitfox-List message posted by: "John Anderson" Hmmm, I originally set all my controls up with a spirit level, but then on the final setup used a electronic inclinonmeter(?spelling) and changed the flaperons quite a lot. GPS confirms ASI too. Could be that Kurt. John __________________________________________________


    Message 25


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    Time: 01:54:53 PM PST US
    From: kurt schrader <smokey_bear_40220@yahoo.com>
    Subject: Re: speed and drag reduction
    --> Kitfox-List message posted by: kurt schrader <smokey_bear_40220@yahoo.com> That is what I think to Deke. I checked my ASI and it was within 2 knots. That might have changed a little with the scoop added because it disturbes the airflow differently behind it compared to the raw radiator. I would sure like to see 105 knots at around 4 GPH. I burn 5 GPH to get 85 now. But I purposely started with no siginificant drag reductions on the plane. I wanted to see what each would do as I add them and report that. Still have a lot to go. Library is closing. Got to go. Kurt S. --- Fox5flyer <morid@northland.lib.mi.us> wrote: > Kurt, assuming your airspeed is accurate, something > is definitely wrong...... __________________________________________________


    Message 26


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    Time: 02:48:29 PM PST US
    From: "Marwynne Kuhn" <marwynne@verizon.net>
    Subject: Electronic Moudle Shock Mounts!
    Thanks Clint, I will give them a look see. have a great day -----Original Message----- From: owner-kitfox-list-server@matronics.com [mailto:owner-kitfox-list-server@matronics.com]On Behalf Of Clint Bazzill Sent: Sunday, July 02, 2006 11:20 AM To: kitfox-list@matronics.com Subject: RE: Kitfox-List: Electronic Moudle Shock Mounts! --> Kitfox-List message posted by: "Clint Bazzill" McMaster Carr as just what you need. At a tenth the price. Cllint ---------------------------------------------------------------------------- From: "Marwynne Kuhn" <marwynne@verizon.net> To: <kitfox-list@matronics.com> Subject: Kitfox-List: Electronic Moudle Shock Mounts! Date: Sun, 02 Jul 2006 12:52:27 -0700 --> Kitfox-List message posted by: "Marwynne Kuhn" <marwynne@verizon.net> I found a number for the shock mounts that support my electronic modules on my 912ul. (Skystar part number 47000 shock mount). Any body have an idea where to purchase them. I have one that broke completely and two that are have dry rot. Any help would be appreciated, http://www.matronics.com/Navigator?Kitfox-List


    Message 27


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    Time: 04:58:07 PM PST US
    From: "Clint Bazzill" <clint_bazzill@hotmail.com>
    Subject: Re: 912s vs. Jabiru 3300?
    --- MIME Errors - No Plain-Text Section Found --- A message with no text/plain MIME section was received. The entire body of the message was removed. Please resend the email using Plain Text formatting. HOTMAIL is notorious for only including an HTML section in their client's default configuration. If you're using HOTMAIL, please see your email application's settings and switch to a default mail option that uses "Plain Text". --- MIME Errors No Plain-Text Section Found ---


    Message 28


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    Time: 06:39:02 PM PST US
    From: "darinh" <gerns25@netscape.net>
    Subject: Re: 912s vs. Jabiru 3300?
    --> Kitfox-List message posted by: "darinh" <gerns25@netscape.net> I agree with Kurt, the high cruise with the 914 was at altitude and I am not going to be cruising at 15k plus so I ruled this engine out long ago. Clint, clint_bazzill(at)hotmail. wrote: > If you want speed, don't build a slow airplane. Clint I think you have misunderstood my use of "cruise speed". I am not looking for blazing speed...I know that the kitfox is not fast and I don't expect it to be (I have owned one before you know, a Model III that cruised at 75 - 80). I am perfectly aware that I am not going to break any speed records in one. That being said, I would like to get as much speed as possible without sacrificing the reason I am building another Kitfox...low and slow, tree-top flying with those short backcountry strips in mind. I have a cabin with a private 1300' one way strip located the Bitterroot mountains (within 100 nm of virtually all the strips in Idaho) that I need to get in and out of. But, I live in Utah and I would love to have a cruise of say 120 - 130ish which would put flight time at approximately 3 -3.5 hours assuming usual winds. I am simply trying to learn if the Jabiru 3300 will provide this type of cruise while maintaining the great short field properties of the Kitfox...if not I will go with the proven 912S. It sounds like nobody can tell me if the Jabiru will provide me with both, so it will come down to a decision and without any other first hand field experience, I would have to say I would go with the Rotax because I know its performance, which by the way is good enough for me, just always looking and hoping for more. By the way, if I would have wanted all-out speed, I would have continued with the build of my RV7 but cut that short for another Kitfox because that is where my flying passion lies...on the undeveloped strips of Idaho and Utah. Darin Read this topic online here: http://forums.matronics.com/viewtopic.php?p=44459#44459


    Message 29


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    Time: 06:47:41 PM PST US
    From: "darinh" <gerns25@netscape.net>
    Subject: Re: 912s vs. Jabiru 3300
    --> Kitfox-List message posted by: "darinh" <gerns25@netscape.net> smokey_bear_40220(at)yaho wrote: > Darin, > > You sure know how to stir things up. People here > marry their engines like they do their planes. > Luckily you didn't ask which was better, a Fox or a > Rans. :-) I guess they do but I wouldn't be so ignorant to ask such a thing as which was better a Fox or a Rans...the answer is obvious isn't it? [Wink] ...I love the Rotax...just looking at options. > > You have the extra HP from the 3300, even with the > greater fixed pitch prop loss. If you can use an > adjustable, it should be a great performer. Closer to > a 914 at much less price and repair costs. That would be exactly what I am looking for! Just don't know if it is compatible with the IFA props. I will talk to Jabiru tomorrow. Darin Read this topic online here: http://forums.matronics.com/viewtopic.php?p=44462#44462


    Message 30


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    Time: 07:15:29 PM PST US
    From: "wingsdown" <wingsdown@comcast.net>
    Subject: Trim servo
    Dan, That someone was me. You had me contact you off list with a price. I think I had it listed for 500 and told you 400. I have only the info Skystar quoted me when I was wanting a spare and that was 1200. I thought 400 was a steal. If the Part numbers match by all means go with the new 200 dollar unit. Please send me a pic of the new unit when you get it so I know what to ask for mine down the road. For those that may want the one Dan is suggesting, don't tell them it is going on an airplane. Electric lift for a boat cover maybe. Rick -----Original Message----- [mailto:owner-kitfox-list-server@matronics.com] On Behalf Of Dan Billingsley Sent: Sunday, July 02, 2006 6:04 AM Recently someone advertised a trim servo for $400.00...indicating that he spent $1000 on it new. Are we talking the elevator trim tab servo? I just checked on new ones and they can be purchased for under $200.00?? Dan AMuller589@aol.com wrote: These can also be repaired economically.


    Message 31


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    Time: 09:28:46 PM PST US
    From: "Clint Bazzill" <clint_bazzill@hotmail.com>
    Subject: Re: 912s vs. Jabiru 3300?
    --- MIME Errors - No Plain-Text Section Found --- A message with no text/plain MIME section was received. The entire body of the message was removed. Please resend the email using Plain Text formatting. HOTMAIL is notorious for only including an HTML section in their client's default configuration. If you're using HOTMAIL, please see your email application's settings and switch to a default mail option that uses "Plain Text". --- MIME Errors No Plain-Text Section Found ---


    Message 32


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    Time: 09:52:20 PM PST US
    From: "John Anderson" <janderson412@hotmail.com>
    Subject: Warp drive hub.Very Strange
    --> Kitfox-List message posted by: "John Anderson" <janderson412@hotmail.com> I guess Kurt a bit of trial and error in the flaperon area may tell you a lot...Spoke to my son (my LAME and rigger). Said if it's flying wings level and both flapperons travel is the same it should be ok. In my early fixed wing days we had one C185 that was just a 'dog', from day one and nothing on earth would make it go..someone put it through fence in the end to nobodys surprise. Not suggesting you wee love machine is in that cat but I was flying mine this afternoon and just lower the nose in cruise a little an 110 just like that?? And hard to slow it on approach too with the tapered prop... Be good if you were just down the road, we could compare..John --> Kitfox-List message posted by: kurt schrader <smokey_bear_40220@yahoo.com> I just stuck by the book on mine and the rigging turned out square on the ground and in flight, just slow. I used a gravity, not digital inclinometer (?)to get it right. I suspect some reflex of the flapperons is called for and I can do a bit quickly thru the flap linkage. On the to-do list. Thanks John, Kurt S. --- John Anderson <janderson412@hotmail.com> wrote: --------------------------------- --> Kitfox-List message posted by: "John Anderson" Hmmm, I originally set all my controls up with a spirit level, but then on the final setup used a electronic inclinonmeter(?spelling) and changed the flaperons quite a lot. GPS confirms ASI too. Could be that Kurt. John __________________________________________________ _________________________________________________________________ Looking for love? Check out XtraMSN Personals http://xtramsn.match.com/match/mt.cfm?pg=channel&tcid 0731


    Message 33


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    Time: 09:55:35 PM PST US
    From: "John Anderson" <janderson412@hotmail.com>
    Subject: Re: speed and drag reduction
    --> Kitfox-List message posted by: "John Anderson" <janderson412@hotmail.com> Could be quite a lot of drag created at the back end of the radiator. I'm sure the air behind mine isn't happy as at higher speeds there is quite a buffeting vibration, I had an exit cowl but it cracked so raw in that area at the moment but intend to build another. John --> Kitfox-List message posted by: kurt schrader <smokey_bear_40220@yahoo.com> That is what I think to Deke. I checked my ASI and it was within 2 knots. That might have changed a little with the scoop added because it disturbes the airflow differently behind it compared to the raw radiator. I would sure like to see 105 knots at around 4 GPH. I burn 5 GPH to get 85 now. But I purposely started with no siginificant drag reductions on the plane. I wanted to see what each would do as I add them and report that. Still have a lot to go. Library is closing. Got to go. Kurt S. --- Fox5flyer <morid@northland.lib.mi.us> wrote: > Kurt, assuming your airspeed is accurate, something > is definitely wrong...... __________________________________________________ _________________________________________________________________


    Message 34


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    Time: 11:28:11 PM PST US
    From: "Tom Tomlin" <ThomasTomlin@comcast.net>
    Subject: Re: 912s vs. Jabiru 3300?
    --> Kitfox-List message posted by: "Tom Tomlin" <ThomasTomlin@comcast.net> Darin, Sorry I'm jumping in here late, but I just thought I'd throw in a couple more comments here. I'm heading out for a two week vacation on the 4th, so I probably will not be able to answer any questions before I go. I have a 3300 on my IV Speedster. Yes, I also had some teething problems with it... Running hot...worked on the baffling. Oil temp too high/low...worked on the oil cooler scoop. Not enough speed..changed 60" Jab wood to 64" Sensenich G.A. prop Cabin heat...still wish I had some... Fuel burn too high...installed carb economy kit...what a difference! Is any of this different from any new engine installation??? Probably not, but the knowledge base is better for the Rotax... for now anyway. What do I really know......I like it! Is it the best engine out there???? Absolutely... Not. All engines, props and for that matter airplanes are a compromise. I recently flew from Greeley CO to St Francis KS (150 miles) for the Stearman Fly-in. Next day a storm came in, so I flew 30 miles south to hangar overnight. Next morning back to St Francis to buy fuel. Those three legs total 210 miles and three warmups from cold. You should have seen the Stearman drivers face after I'd told him where I'd been and the pump stopped at 8.4 gallons....priceless. I'm probably the guy Murle Williams was talking about that flew to the desert Fox fly-in last year. We were three IV speedsters. Theirs were 912ul and IFA Ivoprops. Their planes were also much cleaner aerodynamically. I had no wheel pants and 6.00x6 Clevelands hanging out in the breeze. Yes, they had to slow down for me and I burned more fuel...a bunch more. I'd like to make that trek again this year. It'll be cheaper and faster. What I have is a nice sounding, simple, smooth, and powerful engine. Theirs can descend quicker...less shock cooling risk and IFA prop is a big plus. Their cabins were warm. I'm still fuddling with an ineffective heat system. I think you know all the other plusses and minuses. Am I glad I installed a Jabiru? How about I fly to Utah, maybe in late August and you can see one happy owner. Is it the Jabiru engine that makes me so happy? Heck no...It's because I flying a Kitfox! And if I could afford it, I'd have a big old thirsty Stearman too.... Tom Tomlin N5XT 132.3 hours in 13 months...but who's counting? ----- Original Message ----- Sent: Friday, June 30, 2006 10:29 PM > --> Kitfox-List message posted by: "darinh" <gerns25@netscape.net> > > I am trying to make a decision between the 912s and the Jabiru 3300 for my > series 7 and would like any and all comments or thoughts on either one. > If anyone has experience with both, their comments would be greatly > appreciated. I like the fact that the Jabiru doesn't have a gearbox and > has 20 more hp. I also like the fact that it has a longer TBO and the > cost of that overhaul is substantially less than the Rotax. The Jabiru is > a bit heavier but not much so the weight to hp ratio is about the same. I > have owned a 912UL and I know they are bulletproof (at least mine was), > but... > > All comments welcome. > > Thanks, Darin > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=44086#44086 > > >




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