Hi All, Bernard said:
>"He will personally start believing in wing kinks when he sees them on any >flying creature in Mother Nature.: Time to open his eyes I think-As I recall the kinks serve to more closely approximate elliptical dihedral(The theoretical best shape), as found in all birds-I haven't seen a bird yet with a totally flat wing bending only at one point in the middle. There is always a curve across the entire span.(Soaring Pelican as example) They also can help reduce spanwise flows that most wings develop. Geez, it must be awful to have to go to Europe in our winter Bernard!!! Regards Dave L -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: Monday, 19 June 2006 7:28 PM To: Discussion of issues relating to Soaring in Australia. Subject: Re: [Aus-soaring] WGC 18 metre results with "drag inducing kinks" too Hello Nigel, hello Ian! Let me start by congratulating Ventus Pilots for coming first and second at the WGC in Sweden. Congratulations must also go to ASG 29 pilots for finishing third and fourth. Also, I congratulate my friend Michael Sommer for winning Open Class in an ASW 22. I had the pleasure of flying with him in my ASH 25 at Mt. Beauty over the Easter break and I must say that I can not think of a more competent and more pleasant person to share an aircraft with. Considering the ASG 29 pilots had their first flights in this new glider during the training week it must be regarded as a truly excellent result. It goes without saying that squeezing the maximum out of a new aircraft is simply impossible with just a few hours experience on type. What really matters is the experience and the feedback from participants of the world comps. Some pilots have already submitted extremely positive reports and confirmed most of the claims made in my article. I'm scheduled to fly the ASG 29 for the first time on 4th of July - only 17 sleeps from today. Secondly, let me comment on the effect of wing kinks on performance. You will be hard pressed to find designers and/or researchers stating that kinks in the outer wing do the performance of an aircraft any good. I'm happy to admit that my aerodynamic knowledge doesn't allow me to form an opinion of my own but if my information is correct the reason for their existence has more to do with aircraft handling, especially during circling flight. For now I dare to support comments made by a well respected aircraft developer. He will personally start believing in wing kinks when he sees them on any flying creature in Mother Nature. But perhaps it is best to agree that everybody is entitled to an opinion. Finally, Ian, Schleicher is not using the same drive unit as SH on the ASG 29E and ASW 28-18E. For gliders with sustainer engines they use a 2-stroke Solo engine withoutg reduction gear. Their well known rotary engines are being used on all self launching gliders. Kindest regards Bernard Eckey > MessageNigel > Best you tell Bernard - in time for the next advertorial > in "Soaring Australia" - "Drag inducing Kinks"!!!!. > Perhaps I am a bit out of touch but isn't the ASG29 now > using the same engine as Ventus also and not a rotary!! > All makers have their good points and other things not so > good and I always say to a person thinking of a new glider > to seek Independent Advice before they buy and there are > heaps of good pilots out there that will give such advice. > Gelcote, shrinkage, general feel, cockpit room, etc can > and does vary between the various makers and a buyer > should find out these facts .........Ian McPhee (ex > Ventus owner) > ----- Original Message ----- > From: RF Developments Pty Ltd > To: [EMAIL PROTECTED] ; 'Discussion of issues > relating to Soaring in Australia.' > Sent: Monday, June 19, 2006 9:06 AM > Subject: [Aus-soaring] WGC 18 metre results > > > Congratulations should go to the 1st and second placings > for Ventus as the pressure was on, just imagine how much > better they could have done without the "drag inducing > Kinks " , must remember to go and straighten mine out. > > Cheers > > Nigel > > > > Email [EMAIL PROTECTED] > > Web www.rf-developments.com > > Ph: (61) 7 54635670 Fax: (61) 7 54635695 > > > **************DISCLAIMER************ > > The information contained in the above e-mail message or > messages (which includes any attachments) is confidential > and may be legally privileged. 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