What a neat idea, Virg On Wed, 10 Mar 2004 09:09:05 +1100 "Martindale Family" <johnj...@chc.net.au> writes: > Folks > > A friend of mine designed his own AoA indicator. Simply a 1/2" tube, > sealed > at the end with row of small holes drilled into it. The tube is > mounted out > of the fuselage wall on the extended chord line 8"or so ahead of the > leading > edge root and is parallel to it. He has the holes pointed down at > right > angles to the chord so that at zero AoA there is minimal pressure in > the > tube. As the wing/fuselage is rotated to provide an AoA so too does > the > tube, the holes present to the air flow and the pressure increases. > A > reading is obtained on some sort of sensitive pressure gauge (maybe > just a > low speed ASI) that has it's face recalibrated in arbitary units (he > just > uses numbers 1 to 5 and has the dial named " partner's pressure > level"). > The tube can be rotated to provide calibration (or desired absolute > needle > movement) and the readings noted as he approaches the stall. He > flies this > gauge on approach, more so than the ASI. > > John > The Martindale Family > 29 Jane Circuit > TOORMINA NSW 2452 > AUSTRALIA > > phone: 61 2 66584767 > > email: johnj...@chc.net.au > ----- Original Message ----- > From: "larry severson" <lar...@socal.rr.com> > To: "KRnet" <kr...@mylist.net> > Sent: Wednesday, March 10, 2004 3:12 AM > Subject: Re: KR>Dynon clarification > > > > > > >The only function you will not be able to use without adding an > option is > > >the Angle of Attack. The unit will provide all other functions > with the > > >expenditure of $1995 using the standard power supply in your > airplane and > > >the existing pitot/static system. If you have no use for the > AOA, just > > >use whatcha got. > > > > Forgive me, but the AOA is the most important feature that they > add in not > > only my opinion but also in a number of books on stalls, spins, > landing > and > > small a/c crashes. > > > > > > Larry Severson > > Fountain Valley, CA 92708 > > (714) 968-9852 > > lar...@socal.rr.com > > > > > > _______________________________________ > > to UNsubscribe from KRnet, send a message to > krnet-le...@mylist.net > > please see other KRnet info at http://www.krnet.org/info.html > > > > > _______________________________________ > to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net > please see other KRnet info at http://www.krnet.org/info.html > >
Virgil N. Salisbury - AMSOIL www.lubedealer.com/salisbury Miami ,Fl
