Original Posted By: "Cuy, Michael D. (GRC-RXD0)[Vantage Partners, LLC]"
Subject: Pietenpol-List: reducing the wingspanEllery,Welcome to the group and glad you're building a Pietenpol. This is a good group of folks and there are some very talentedand extremely well versed and knowledgeable people on the list and most of them are even housebroken:). !I've never heard of anyone reducing the wingspan on a Piet but rather making it longer. Most low power (65 horse Continentals and such)planes of the 1940's like Taylorcrafts, Luscombes, Cubs, and Champs had wingspans in the 35' range.The Pietenpols wing is only 29' so making it a little longer is goodness in that you will be able to lift more weight and that is importantif you're on a shorter field or high elevation...even on hotter days it will help you.I built my Pietenpol with the standard 29' wing but if I had to do it over again I might make my center section wider as Jack Phillipsdid and if not mistaken Bill Rewey-this gives you more wing area, greater lifting capability. I wouldn't hesitate to add 2-3 feet tothe overall length of my wing.Whatever you built, Piet or other design, try your best to keep it light and it will then be a GOOD performing airplane. Most of us arenot 150 pound pilots like Bernard Pietenpol was so if you are heavier and you want to take a full-size adult for a Piet ride your best betis too keep the plane light when building.Nothing is more frightening than wondering if you're going to be able to climb high enough on a hot day with a passenger to clearthe tops of telephone wires or tree tops. Every extra pound you add is one you'll have to take for each ride also.Mike C.________________________________________________________________________________
Pietenpol-List: reducing the wingspan
RE: Pietenpol-List: reducing the wingspan
Original Posted By: owner-pietenpol-list-server(at)matronics.com
I'm interested in the pros and cons of lengthening the wings. I understandmore wing area = more lift. What are the negatives (decrease in speed?) andhow great are they?Widening the center wing section must have is limitation in relationship tothe width of the fuselage. What width center section did Jack and Billachieve? Can the wing tips also be extended 12-18" on each side? Seemslike this would be about two ribs per wing.If the wings are lengthened what are the major changes needed to support thelonger wings?Allan Macklem
I'm interested in the pros and cons of lengthening the wings. I understandmore wing area = more lift. What are the negatives (decrease in speed?) andhow great are they?Widening the center wing section must have is limitation in relationship tothe width of the fuselage. What width center section did Jack and Billachieve? Can the wing tips also be extended 12-18" on each side? Seemslike this would be about two ribs per wing.If the wings are lengthened what are the major changes needed to support thelonger wings?Allan Macklem
Re: Pietenpol-List: Re: reducing the wingspan
Original Posted By: "TOM STINEMETZE"
Pietenpol-List: reducing the wingspan
Original Posted By: johnwoods(at)westnet.com.au
Those of you who receive the BPA Newsletter will notice my little commentary onthe Piet design in the current issue. I take no credit for the engineering ormath... all I did was compare my Air Camper's dimensions and proportions tothe "rule of thumb" formulae to see how it shapes up. The indications are thatper the rules of thumb, the stock Air Camper can use a bit more wingspan.Oscar ZunigaMedford, ORAir Camper NX41CC "Scout"A75 power ________________________________________________________________________________Date: Thu, 18 Oct 2012 23:16:25 +0800 (WST)
Those of you who receive the BPA Newsletter will notice my little commentary onthe Piet design in the current issue. I take no credit for the engineering ormath... all I did was compare my Air Camper's dimensions and proportions tothe "rule of thumb" formulae to see how it shapes up. The indications are thatper the rules of thumb, the stock Air Camper can use a bit more wingspan.Oscar ZunigaMedford, ORAir Camper NX41CC "Scout"A75 power ________________________________________________________________________________Date: Thu, 18 Oct 2012 23:16:25 +0800 (WST)