Pietenpol-List: Landing Gear Location

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Original Posted By: At7000ft(at)aol.com
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Original Posted By: Mike
Subject: Re: Pietenpol-List: Landing Gear Location

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Original Posted By: "Hodgson, Mark O"

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Original Posted By: Mike
Re: Pietenpol-List: Landing Gear Location ----- Original Message -----

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Original Posted By: John Dilatush
To clarify John's post below, the 16.5 degree angle is with the tail up and theship level fore and aft using the top longerons at the cockpit for leveling.chris bobka ----- Original Message -----

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Original Posted By: Christian Bobka
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Original Posted By: Mike
Re: Landing Gear Location ----- Original Message -----

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Original Posted By: At7000ft(at)aol.com
Subject: Re: Pietenpol-List: Buying spruce for AirCamperI used to teach taildragging in a Decathalon and a Super Cub and never had an experienced pilot take over 10 hours, may want to find a different instructor.2) I'm a private pilot with about 200 hours, now working on atailwheel endorsement. Although my instructor says I'm "almost there,"it has taken a LOT longer than I expected (over 20 hours), and this in aCitabria which sounds like it's much easier to land/take off than a Pietby all descriptions I have heard. Should low total time and a long timelearning to handle a taildragger deter me from building a Pietenpol, orwill this seem like a distant problem in a few years when I'm ready tofly it? ________________________________________________________________________________

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Original Posted By: "John Ford"
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Original Posted By: dave rowe

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Original Posted By: Michael D Cuy

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Original Posted By: dave rowe

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Original Posted By: "Steve Eldredge"

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Original Posted By: Michael D Cuy

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Original Posted By: "Kent Hallsten"

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Original Posted By: Clif Dawson (by way of Matt Dralle )

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Original Posted By: "Steve Eldredge"

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Original Posted By: At7000ft(at)aol.com

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Original Posted By: Michael D Cuy

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Original Posted By: "Michael D Cuy"
Mike,good suggestion! I'll try that.walt evansNX140DL----- Original Message -----

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Original Posted By: "Michael D Cuy"
I wouldn't worry about a bit too much instruction. When you send in yourinsurance application for your new Piet you will be dollars ahead with morethan 25 hours in type.Dick N.----- Original Message -----

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Original Posted By: Dave and Connie

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Original Posted By: "Dave and Connie"
Love it.... So cool eh Dave? Now, don't you think the wing section wouldmake a good Piet airfoil?Weav----- Original Message -----

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Original Posted By: "Richard Navratil"
When the time comes, I'll have to see if my 28 hours in a J-3 are still"useful" (in addition to getting some more current taildragger time!) Myfirst solo was a long time ago! ;-)Mike C.Pretty Prairie, KS--- Original Message -----

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Original Posted By: Christian Bobka
My old copy (1965) of "Practical Lightplane Design & Construction" by BillFike listed the average landing angle as being 12 to 14 degrees -- with thefuselage level, the wheel axle was in-line with the leading edge of thewing (16 degrees down & forward of the CG point) -- for a "cub" likeairplane with brakes.Mike C.Pretty Prairie, KS----- Original Message -----

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Original Posted By: dave rowe

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Original Posted By: dave rowe

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Original Posted By: Michael Conkling
Mike,I am having a lot of confusion trying to understand this angle thing. 12-14 degreesmeasured from where to where? I know how to find the C.G. horzontally butthis vertical C.G. point is new to me. Can you clarify this point?Alex Sloanalexms1(at)bellsouth.net ----- Original Message -----

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Original Posted By: Alex Sloan
Alex,The 12-14 degrees would be measured between the upper longeron line and theground line -- it's the angle your planes sits at when it in 3-pointposition.Vertical CG can be done the same as horizontal CG -- use the upper longeronas datum & use the same weights for the components -- distances would beplus (above?) or minus (below?) the datum -- probably won't be too far fromthe upper longeron ( a good "ball park" location would probably be yourhorizontal CG location at the upper longeron)Mike C.Pretty Prairie, KS ----- Original Message -----

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Original Posted By: Alex Sloan
With the plane in a level attitude the angle we are talking about is between avertical through the CG and the tire contact point and the CG. You can find theactual CG location by doing a "weigh" with the tail down and find the CG spoton the ground. A line on the fuselage side (vertical) will become a slopedline when you bring the tail up to level. Do the weigh again and make a newvertical line. The crossing point of the lines is the actual CG. Pull anotherline from that CG location (with the tail still up) to the contact point ofthe tires. The angle between the vertical line and the line to the tire contactpoint is the angle we are talking about.The angle isn't going to be very big between the tail down and up CG locationsso measure carefully (a 90=BA angle would be most accurate). A REALLY accurateway to locate the vertical location would be to just hang the plane up by theprop and drop a plumb line down beside it but that seems to cause a lot of fluidleaks. ;-)Hank J ----- Original Message -----