Kolb-List Digest Archive

Fri 03/18/16


Total Messages Posted: 2



Today's Message Index:
----------------------
 
     1. 06:56 AM - Mark-III - a pretty good Airplane (KIRBY, DENNIS T GS-13 USAF AFMC AFNWC/EZS)
     2. 08:07 AM - Re: Kolb-List Digest: 3 Msgs - 03/17/16 (B Young)
 
 
 


Message 1


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    Time: 06:56:04 AM PST US
    From: "KIRBY, DENNIS T GS-13 USAF AFMC AFNWC/EZS" <dennis.kirby.3@us.af.mil>
    Subject: Mark-III - a pretty good Airplane
    Kolb Friends - I gotta agree with Mr Rowe, commenting on Hauck's post about his Miss P'fer. I've been flying my Mark-3 for about 14 years now, and every so often, I begin thinking how nice it might be to have an airplane that flies a little faster, carries a bit more, or keeps me dry when I fly through rain. But then I read John's summary of his Kolb's experience (below), and it reminds me that I'll NEVER be able to match my Mark-3's performance with another aircraft for what my Kolb cost me. It still meets MY primary mission (local flying and backcountry camping), and it's probably the cheapest "real" airplane I could ever own. I think I'll keep it for a few more years ... Dennis Kirby Mark-3 Classic / 912ul in Sandia Park, New Mexico Do not archive ============== Dennis Rowe wrote: << Man, let me know if you ever want to sell Miss Pfer. That was quite the sales pitch! Dennis "Skid" Rowe >> << It gets me in and out of tiny fields, two track trails, gravel bars, beaches on the Atlantic, the Gulf of Mexico, the Arctic Ocean, and small dry lakes in the dessert. It does much more than Homer Kolb and John Hauck ever dreamed one of his little airplanes would do. It takes me where I want to go. All I have to do is put gas in it, take off and point the nose in that direction. john h >>


    Message 2


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    Time: 08:07:30 AM PST US
    Subject: Re: Kolb-List Digest: 3 Msgs - 03/17/16
    From: B Young <byoungplumbing@gmail.com>
    I have a specific question which you might be able to answer: If you put the wing on a FireStar at the lower incidence angle of the Slingshot, and then put on the taller gear from the Slingshot, would you get both benefits (a higher cruise speed from the tailboom flying straight), AND better STOL performance (from the higher ground angle)? Xxxxxxxxxxxxxxxxxxxxx I don't think the tail boom has a lot more drag flying tail high vs level. It is such a small angle I believe it to have a laminar flow. Could it be possible that longer gear legs at 90 deg to the air flow would have more drag than the tail boom at a small angle? Especially considering the tail boom is flying in disturbed air from the fusealage/prop wash. Check the airlines. The back quarter of the cabin area is racked up at a greater angle than the Kolb tail boom in flight. Some of the reason is for ground clearance when they rotate, but if the drag increase was so high caused by the angle. They would decrease the angle and increase rotation speed. If you change the wing incidence, you need to change the incidence of the horizontal tail plane. Engine mounting angle..,. At any given speed and angle of attack there is only so much lift. Now if you change the wing profile,,,,, you could get some benefits in some areas, but at the same time you would loose benefits in other areas... Ex. To get a faster cruise. You loose slow speed on take off and landing/ slower climb.... Pick what you want, but be prepared to pay. To use John's idea of the other day,,,,, if you design a plane that will take off and land at 25 mph, climb at 2500 fpm, cruise at 225 mph and the engine only burn 1gph. Keeping the cost under fifty thousand...... Every pilot in the country would want one. Boyd Young




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