Kolb-List Digest Archive

Sun 06/01/03


Total Messages Posted: 16



Today's Message Index:
----------------------
 
     1. 05:46 AM - Re: Swing the Compass (Beauford Tuton)
     2. 07:39 AM - Texoma Ultralight Gathering (John Williamson)
     3. 08:13 AM - Re: Texoma Ultralight Gathering (John Hauck)
     4. 09:07 AM - For Ken Fackler (Ron or Mary)
     5. 12:42 PM - Website Update (John Williamson)
     6. 02:03 PM - Mark III late off ground. (Johann G.)
     7. 02:47 PM - Re: Mark III late off ground. (John Hauck)
     8. 02:50 PM - Replies (John Hauck)
     9. 02:51 PM - Re: Mark III late off ground. (Richard Harris)
    10. 03:04 PM - Re: Swing the Compass (Bob N.)
    11. 04:40 PM - Re: Website Update (ronnie wehba)
    12. 05:50 PM - Re: Website Update (Richard Pike)
    13. 06:42 PM - Re: Swing the Compass (John Hauck)
    14. 09:24 PM - [ Woody ] : New Email List Photo Share Available! (Email List Photo Shares)
    15. 09:35 PM - Re: Mark III late off ground. (jerb)
    16. 09:37 PM - Re: Mark III late off ground. (jerb)
 
 
 


Message 1


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    Time: 05:46:08 AM PST US
    From: "Beauford Tuton" <beauford@tampabay.rr.com>
    Subject: Re: Swing the Compass
    --> Kolb-List message posted by: "Beauford Tuton" <beauford@tampabay.rr.com> Ian: Swinging a compass is a tedious, but necessary little process that generates the compass deviation card and cranks most, if not all, of the apparent error out of the compass ... There is an excellent, very detailed, article by Tony Bingelis on how to do it available on the EAA homebuilder's website... it is a reprint of a Sport Aviation article from 1996....suggest you hit that site and take a look at it. Appropriately enough, it is entitled "Swinging the Compass..." I watched some guys do this to a Cherokee using GPS about 3 weeks ago... first time I saw GPS used in the process.... worked pretty well... We always used the old compass rose painted on the ramp... Good Luck... Beauford ----- Original Message ----- From: "Ian Heritch" <iheritch@satx.rr.com> Subject: Kolb-List: Swing the Compass > --> Kolb-List message posted by: "Ian Heritch" <iheritch@satx.rr.com> > > Friends, the instructions with my new adjustable compass (Pegasus PG2A) state that prior to adjusting I should "swing the compass". Of course they don't explain how to swing the compass. > > So, is it as simple as rotating the aircraft on the ground one or more times in one direction, and then rotating it again one or more times in the opposite direction? > > Please advise. > > Ian Heritch > San Antonio, TX Slingshot, 912 > >


    Message 2


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    Time: 07:39:45 AM PST US
    From: "John Williamson" <kolbrapilot@attbi.com>
    Subject: Texoma Ultralight Gathering
    --> Kolb-List message posted by: "John Williamson" <kolbrapilot@attbi.com> Hello Ed and Gang, If anyone is around North Texas or Oklahoma on June 6-8, the DFW Lite Flyers have a great Fly-In at Bowie Municipal airport (0F2), TX. Here is their website address for more details: http://www.dfwliteflyers.org/home.htm I plan on being there on Saturday the 7th of June. If any one is interested in the Kolbra, come at look at it. John Williamson Arlington, TX Kolb Kolbra, N49KK, Jabiru 2200, 327 hours http://home.attbi.com/~kolbrapilot do not archive


    Message 3


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    Time: 08:13:40 AM PST US
    From: John Hauck <jhauck@elmore.rr.com>
    Subject: Re: Texoma Ultralight Gathering
    --> Kolb-List message posted by: John Hauck <jhauck@elmore.rr.com> > I plan on being there on Saturday the 7th of June. If any one is interested > in the Kolbra, come at look at it. > > John Williamson John W/Kolbers: After I read John's msg, I clicked on his web site to see if he had posted any recent pics. For some reason I checked his flight to Sun and Fun and Key West. Was reading through and clicking on photos in his narrative of the flight. Low and behold, John spent the night in Crystal Springs, Mississippi, I believe (without going back to check) on his last night out. I can confirm his statement that there was nothing at the airport. I spent the last night of my MV flight at, you guessed it, Crystal Springs, MS, Airport. Had messed around a little in the Vidalia, LA, and Natchez, MS, area looking for and finding an ultralight airstrip depicted on the Sectional. Turned out to be a good airstrip, but not used for ULs in many years. After fuel at Natchez, I decided to push on even though sun set was fast approaching. The airport was supposed to be lighted, but that is no guarantee. As I approached the little town of Crystal Springs, I still had not been able to pick out the beacon (which it did not have) or the runway lights. Once on a return flight from Oshkosh I had gambled on getting into a small airport in Kentucky after dark. Could not get the runway lights to come up on arrival. Airport surrounded by lights that ruined my night vision. Was not willing to gamble on a landing with just my single landing light when I could not see the field. A couple miles from Crystal Springs I did pick out the runway lights and shot my approach into a dead and abandoned airfield. No telephone or humans around the area. Luckily, my cell phone worked in the middle of nowhere. I was able to contact Nell and let her know where I was. As I was chowing down on my MRE a 4 wheel drive pickup with more lights than a 747 came down the little pig trail and proceeded to blind me. I made a slight angry gesture. He turned around and did not come back. Luckily I had fuel for the remainder of the flight. I slept on the tarmac under the wing without any intruders to my space. Left Friday morning at 0630 to discover that Paul Petty's family compound and grass strip were only 30 or 40 miles away, right on my course line. Was hard to roust everybody out of bed, but I did. Got my three cups of Louisiana coffee in Mississippi. The jolt was enough to get me the 200 miles or so to Gantt IAP and home. Sorry about getting so wordy, but I did............. :-) Happy Sunday morning, john h PS: Got my 12 rolls of film in the shop last night. Will get them out Wednesday evening with prints and CDs. Should have them on my index page Wed night.


    Message 4


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    Time: 09:07:56 AM PST US
    From: "Ron or Mary" <whyme@vci.net>
    Subject: For Ken Fackler
    --> Kolb-List message posted by: "Ron or Mary" <whyme@vci.net> Ken--Did you get the pictures I sent you? I hope I had the correct address.=0D =0D Ron Payne=0D Do not archive.


    Message 5


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    Time: 12:42:17 PM PST US
    From: "John Williamson" <kolbrapilot@attbi.com>
    Subject: Website Update
    --> Kolb-List message posted by: "John Williamson" <kolbrapilot@attbi.com> Fellow Kolbers, As promised, I just finished loading the photos of my last trip on my website for your viewing. If you find any broken links, I would like to here about them so they can be fixed. To say the least, Monument Valley was great. We, as in all Kolb flyers and builders, have an invitation to Fly-In to Montana next spring which I am all in favor of. The flying area north of Missoula and Helena was just splendid and I need to see it again. John Williamson Arlington, TX Kolb Kolbra, N49KK, Jabiru 2200, 327 hours http://home.attbi.com/~kolbrapilot do not archive


    Message 6


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    Time: 02:03:01 PM PST US
    From: "Johann G." <johann@gi.is>
    Subject: Mark III late off ground.
    --> Kolb-List message posted by: "Johann G." <johann@gi.is> Hi list members. My friend here in Iceland is having some difficulties with his Mark III. When in the take off roll, the plane wants to stay on the ground even though the speed is sufficient for take off. The weight of balance is correct and the wing dihedral is set according to the drawings. He is using the Rotax 912 UL engine with IVO three blade prop. He had not installed any kind of trim on the plane. Does anyone on the list have the same experience with his Mark III? Is the engine thrust line too low, i.e. wants to push the plane down and hold it on the ground? Could the wing angle of incidence be too low? Or the horizontal stabilizer be positioned incorrectly? Take a look at my friends plane. It is the yellow one. http://www.gi.is/fis/misc.htm Any help would be appreciated. Best regards, Johann G. Iceland.


    Message 7


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    Time: 02:47:17 PM PST US
    From: John Hauck <jhauck@elmore.rr.com>
    Subject: Re: Mark III late off ground.
    --> Kolb-List message posted by: John Hauck <jhauck@elmore.rr.com> Johann/Gang: Tell your friend to come back off the power a little once he reaches flying speed, say 50 mph. Could be high thrust line and high power causing the airplane not to want to fly off the ground. I experienced this with the 912S on my first take off. Other tricks to fool it into flying are: Let the tail rise pretty high through flying speed then try to rotate. Sometimes rolling the airplane up on one main with ailerons near flying speed will encourage it to take off and fly. If it was mine, I would shorten the tail wheel strut to aprx'ly 5 or 6 inches showing between the tail wheel strut socket and the tail wheel assembly. This will get the tail a little lower and put a little more incidence in the wings. If the above does not work, then I would recommend putting it into a nice three point stance like old Miss P'fer. Let me know what happens, please. john h


    Message 8


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    Time: 02:50:49 PM PST US
    From: John Hauck <jhauck@elmore.rr.com>
    Subject: Replies
    --> Kolb-List message posted by: John Hauck <jhauck@elmore.rr.com> Folks: If you have sent me an email and I haven't replied it is because I have not waded deep enough into this little mountain of mail that was waiting on me when I got home, over 3,000 emails. The folks on the SF List were supposed to put me TDY while on the MV Flight, but the wires got crossed and Brother Jim was put on TDY and I kept on getting the normal daily flood of mail while away. I am working my way through it little by little. :-) john h


    Message 9


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    Time: 02:51:51 PM PST US
    From: "Richard Harris" <rharris@magnolia-net.com>
    Subject: Re: Mark III late off ground.
    --> Kolb-List message posted by: "Richard Harris" <rharris@magnolia-net.com> Johann, Its real hard to tell much about the set up of your friend's MK3 from the photos. However when I was building my MK3 ( with a 912) the old Kolb Company told me to raise the front of the engine about 3/4" to get the thrust line lower. Since that time I have talk to folks that know a great deal about Kolbs. The general consensus seems to be to have the prop perpendicular to the trailing edge of the wing. Hope this helps.. Richard Harris MK3 N912RH Lewisville, Arkansas ----- Original Message ----- From: "Johann G." <johann@gi.is> Subject: Kolb-List: Mark III late off ground. > --> Kolb-List message posted by: "Johann G." <johann@gi.is> > > Hi list members. > > My friend here in Iceland is having some difficulties with his Mark III. > When in the take off roll, the plane wants to stay on the ground even though > the speed is sufficient for take off. > The weight of balance is correct and the wing dihedral is set according to > the drawings. > He is using the Rotax 912 UL engine with IVO three blade prop. He had not > installed any kind of trim on the plane. > > Does anyone on the list have the same experience with his Mark III? > Is the engine thrust line too low, i.e. wants to push the plane down and > hold it on the ground? > Could the wing angle of incidence be too low? Or the horizontal stabilizer > be positioned incorrectly? > > Take a look at my friends plane. It is the yellow one. > http://www.gi.is/fis/misc.htm > > Any help would be appreciated. > > Best regards, > > Johann G. > Iceland. > >


    Message 10


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    Time: 03:04:34 PM PST US
    From: "Bob N." <ronoy@shentel.net>
    Subject: Re: Swing the Compass
    --> Kolb-List message posted by: "Bob N." <ronoy@shentel.net> OK I'm back from Honey-Do City. Swinging the mag compass in an Ultralight should be easy, especially if you can corral a helper. But first a word on installation/location. Anything magnetic affects the compass. Being as how Kolbs have a lot of steel it is difficult to find a low-magnetic location that is viewable. [funny story later] First the reason it's easy is that you must align the vehicle's physical heading (using the boom tube, for instance) with magnetic North. If you are on an arpt with a compass rose, position the UL on the rose, with the tail in approx. flying position. If it's windy, or the UL is wobbling, wait a bit for calmer conditions. Helpful if you have a tail stand/old box/etc to rest the tail on. If you were working with a larger SpamCan it would be a lot more difficult with the tail situation. If you have an electrical system, turn on those items that are usually on in flight. (Other loads such as Transmit, landing lights, etc. will affect the compass, but only when on). Depending upon the engine installed, RPMs should be fast enough to show some charging current. With all the foregoing, ck the compass reading for 360 degrees; using a non-mag (brass or fiber) screwdriver set compass to 360, using the N/S adj. Turn around heading mag South on the rose, and take out One Half the error, using N/S adj. Now turn UL to mag 270 and take out One Half the error, using the E/W adj. Now go to mag 90, repeating the above. And then go back and do it again, taking out even smaller bites of error. See how a UL is much easier to swing than a C182, or even a 150? After the second or third iteration, check the compass at 30 degree headings (or even 45s) and write down the mag rose headings vs the mag compass headings. Make a teeny card and slip into frame under compass face--if available. What you've done is to make a Table of compass deviation--more later. And just for info, turn on some current hogs, like Transmit, heated vest/gloves/boots/etc and note approximate changes. Now you almost done, except for being able to Stand Up Straight, AvCad and give me the two mnemonic covering compasses! Sir: Can Dead Men Vote Twice, and True Virgins Make Dull Company. Compass +/-Deviation=Magnetic +/-Variation=True. And True +/- Variation=Magnetic +/-Deviation=Compass You get the value of Variation right from the sectional(s) covering your route. And that's the way it was in'42. Oh, the funny? I was ferrying a 172 from CA to east coast in August. I'd come down the hill from Walsenburg and on to Lamar. Had a couple frozen 7UPs on board. Filed IFR for the run to Dodge City. Enroute controllers were good, giving some needed steers around big cell. So being bone dry, got a can open without spraying entire cabin, took a drink of ice and foam, set the can on the glare shield, and motored on. Center comes on, saying I'm almost 10 deg off centerline and getting worse. Gave me vector to intercept course. Later after a couple more slugs of ice---and a knuckle rap from Center I figure that the steel 7UP can shouldn't be on the glare shield, right beside the compass! Bob N. http://www.angelfire.com/rpg/ronoy/


    Message 11


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    Time: 04:40:26 PM PST US
    From: "ronnie wehba" <rwehba@wtxs.net>
    Subject: Re: Website Update
    SpamAssassin (Message larger than max testing size) --> Kolb-List message posted by: "ronnie wehba" <rwehba@wtxs.net> If the weather is nice, gonna try and bring my ultrastar. ----- Original Message ----- From: "John Williamson" <kolbrapilot@attbi.com> Subject: Kolb-List: Website Update > --> Kolb-List message posted by: "John Williamson" <kolbrapilot@attbi.com> > > Fellow Kolbers, > > As promised, I just finished loading the photos of my last trip on my website for your viewing. > > If you find any broken links, I would like to here about them so they can be fixed. > > To say the least, Monument Valley was great. > > We, as in all Kolb flyers and builders, have an invitation to Fly-In to Montana next spring which I am all in favor of. The flying area north of Missoula and Helena was just splendid and I need to see it again. > > > John Williamson > Arlington, TX > > Kolb Kolbra, N49KK, Jabiru 2200, 327 hours > http://home.attbi.com/~kolbrapilot > > do not archive > >


    Message 12


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    Time: 05:50:43 PM PST US
    From: Richard Pike <rwpike@charter.net>
    Subject: Re: Website Update
    --> Kolb-List message posted by: Richard Pike <rwpike@charter.net> Great page! Really enjoyed all of it. No broken links, but on page 13, KEFC airport is in SD, not SC. Thanks for the show Richard Pike MKIII N420P (420ldPoops) Do Not Archive At 02:46 PM 6/1/03 -0500, you wrote: >--> Kolb-List message posted by: "John Williamson" <kolbrapilot@attbi.com> > >Fellow Kolbers, > >As promised, I just finished loading the photos of my last trip on my >website for your viewing. > >If you find any broken links, I would like to here about them so they can >be fixed. > >To say the least, Monument Valley was great. > >We, as in all Kolb flyers and builders, have an invitation to Fly-In to >Montana next spring which I am all in favor of. The flying area north of >Missoula and Helena was just splendid and I need to see it again. > > >John Williamson >Arlington, TX > >Kolb Kolbra, N49KK, Jabiru 2200, 327 hours >http://home.attbi.com/~kolbrapilot > >do not archive > >


    Message 13


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    Time: 06:42:27 PM PST US
    From: John Hauck <jhauck@elmore.rr.com>
    Subject: Re: Swing the Compass
    --> Kolb-List message posted by: John Hauck <jhauck@elmore.rr.com> > Swinging the mag compass in an Ultralight should be easy, especially if > Bob N. Bob N/Gang: Great explanation from an experienced aviator that goes back a number of years. How's that sound? Started to call you an old fart, which you would understand coming from me, but was afraid some of the other Kolbers might take offense to something that comes naturally. :-) Anyhow, let me add one thing I learned by accident while swinging the compass on my Firestar many years ago. In addition to everything that the Grey Baron explained insure your control stick (made of steel) is also in the cruise position of flight when you swing the compass. I did not do that for a long time, then one day when I was swinging a new compass I pulled the stick back and got a big swing in the compass indication. Yep, when it was relaxed on the ground and forward, closer to the compass, it was greatly affecting its accuracy. Nuff said, john h PS: Just got back from my first flight since I landed back home Friday morning. Boy does that MK III climb now that it is empty. Well, all except the 7 MRE's in the nose I forgot to take out when I unloaded. Last light flight was smooth and very enjoyable. Got to fly with my buddies who were all out and about doing the aviating thing this Sunday evening. Life is great at those times, and in the morning when I get up to a new day.


    Message 14


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    Time: 09:24:19 PM PST US
    Subject: [ Woody ] : New Email List Photo Share Available!
    From: Email List Photo Shares <pictures@matronics.com>
    --> Kolb-List message posted by: Email List Photo Shares <pictures@matronics.com> A new Email List Photo Share is available: Poster: Woody <duesouth@govital.net> Subject: Thunderbird http://www.matronics.com/photoshare/duesouth@govital.net.06.01.2003/index.html o Main Photo Share Index http://www.matronics.com/photoshare o Submitting a Photo Share If you wish to submit a Photo Share of your own, please include the following information along with your email message and files: 1) Email List or Lists that they are related to: 2) Your Full Name: 3) Your Email Address: 4) One line Subject description: 5) Multi-line, multi-paragraph description of topic: 6) One-line Description of each photo or file: Email the information above and your files and photos to: pictures@matronics.com


    Message 15


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    Time: 09:35:17 PM PST US
    From: jerb <ulflyer@airmail.net>
    Subject: Re: Mark III late off ground.
    --> Kolb-List message posted by: jerb <ulflyer@airmail.net> A few things quickly come to mind. Assuming the wings incidence is correct, (should be checked in the normal flying attitude as per the building manual), is the plane tail coming up OK? Is the tail wheel assembly and/or gear legs standard so the proper "stance" is obtained - a taller tail wheel or longer tail spring can raise the tail or shorter gears legs lower the nose to decrease the wings angle of attack. Is the tail horizontal stabilizer incidence set correctly? Does the elevator have adequate up movement (that is the rear tip of the elevator swinging upward when the stick is pulled back) - needs to be rechecked. If the tail is coming up, the plane sticks to the ground, the engine thrust line may not be set correctly where it pushes the nose down with enough force to over come the lift generated by the wing at the takeoff speed. Front of the engine relative to the rear may be to low, may require removing shims from the rear and adding shims to the front to raise the front of the engine. Have you performed a static ground run on the engine with the tail tied down to verify the prop has been adjusted to properly load the engine? Are you getting the speed required on take off roll, and how long is it taking to reach it? Are the prop blades installed in the correct from/back orientation? It may be possible you have set some pitch in them (twisted them backwards) to load the engine and produce some thrust but is may not be adequate to bite the air. Last, are the brakes dragging? Regards, jerb


    Message 16


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    Time: 09:37:59 PM PST US
    From: jerb <ulflyer@airmail.net>
    Subject: Re: Mark III late off ground.
    --> Kolb-List message posted by: jerb <ulflyer@airmail.net> Relative to the top surface or bottom surface? At 04:49 PM 6/1/03 -0500, you wrote: >--> Kolb-List message posted by: "Richard Harris" <rharris@magnolia-net.com> > >Johann, Its real hard to tell much about the set up of your friend's MK3 >from the photos. However when I was building my MK3 ( with a 912) the old >Kolb Company told me to raise the front of the engine about 3/4" to get the >thrust line lower. Since that time I have talk to folks that know a great >deal about Kolbs. The general consensus seems to be to have the prop >perpendicular to the trailing edge of the wing. > > Hope this helps.. > > >Richard Harris >MK3 N912RH >Lewisville, Arkansas >----- Original Message ----- >From: "Johann G." <johann@gi.is> >To: <kolb-list@matronics.com> >Subject: Kolb-List: Mark III late off ground. > > > > --> Kolb-List message posted by: "Johann G." <johann@gi.is> > > > > Hi list members. > > > > My friend here in Iceland is having some difficulties with his Mark III. > > When in the take off roll, the plane wants to stay on the ground even >though > > the speed is sufficient for take off. > > The weight of balance is correct and the wing dihedral is set according to > > the drawings. > > He is using the Rotax 912 UL engine with IVO three blade prop. He had not > > installed any kind of trim on the plane. > > > > Does anyone on the list have the same experience with his Mark III? > > Is the engine thrust line too low, i.e. wants to push the plane down and > > hold it on the ground? > > Could the wing angle of incidence be too low? Or the horizontal stabilizer > > be positioned incorrectly? > > > > Take a look at my friends plane. It is the yellow one. > > http://www.gi.is/fis/misc.htm > > > > Any help would be appreciated. > > > > Best regards, > > > > Johann G. > > Iceland. > > > > > >




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