Bobby: I do not know the answer to that but I am aware that ther is a trade-off and I want cruise & Stall in Sport plane limits and this is doable according to my EAA counsular. Be advised I used 42" for my chord not 36"--- OOPS
don bo...@hatconversions.com wrote: > Can you limit the max speed by prop pitch and still retain phenoninal > climb characteristics with lots of hp? > > > Ameet: > > > > Thanks for setting me straight on the terminology. What I used for wing > > area is exactly what you sdescribe as I used 36 inches x 94 inches for > > the outbboard wings on mine to run through the theoretical stall speed > > calcs to arrive at max allowable gross for the 51 mph stallof 887# for my > > bird. > > > > I am depending on engine & Prop choice as well as the drag of the Tri-gear > > to get the speed under the 138 mph limit. I would of course love the > > "Pocket Rocket" status afforded by some of the larger engine sizes. > > > > Don > > > > Ameet Savant wrote: > > > >> Eric - The airfoil and hence the curvature neither the > >> thickness of it has any bearing on the wing area for > >> aerodynamic calculations. In other words, simply > >> calculate the area of the polygon traced by the wing > >> to get the wing area. > >> > >> Don - MAC is a weighted average of all cord lengths on > >> a semi-span. This is useful for simplifing aerodynamic > >> calculations on a tapered wing. MAC is same as chord > >> on a rectangular wing. > >> > >> Ameet Savant > >> Omaha, NE > >> > >> --- D F Lively <riksh...@interl.net> wrote: > >> > >> > Eric: > >> > > >> > I can be wrong on this but I think that is whaht is > >> > ment by the MACwhich is the > >> > lingthof the line 1l2 way between the upper and > >> > lower surface which would be > >> > slightly longer. I would not worry about the > >> > theoretical benifits of that > >> > though because as a practical mater there are > >> > probably enough imperfections > >> > elsewhere to eat up what little is gained by > >> > cosidering the difference. > >> > > >> > Don > >> > > >> > > >> ---------------------------------------------------------------- > >> > > >> > Eric Anderson wrote: > >> > > >> > > I read somewhere that the square footage of a wing > >> > is what you would get if > >> > > if you stripped the upper surface off and laid it > >> > out flat. So it is always > >> > > a little more than the chord x span. > >> > > > >> > > -Eric in Mpls > >> > >> __________________________________________________ > >> Do You Yahoo!? > >> Tired of spam? Yahoo! Mail has the best spam protection around > >> http://mail.yahoo.com > >> > >> _______________________________________ > >> Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp > >> to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net > >> please see other KRnet info at http://www.krnet.org/info.html > > > > > > _______________________________________ > > Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp > > to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net > > please see other KRnet info at http://www.krnet.org/info.html > > > > _______________________________________ > Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp > to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net > please see other KRnet info at http://www.krnet.org/info.html
