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	Antti Saikkonen
	The latest articles about transonic airfoils are not only very interesting to read but also shows that supercool is at the leading edge of prop developing. I can recommend his great products to everyone. July 29 2008 (34) e

	Ray Eaton
	Hi Bob, I have been using a SLH 15A for about 27 years now in various aircraft and in a swamp rat boat with the engine up top with a prop. i hate to think how many hard hours this motor has done but it is still the sweetest little engine that wont give up, it still idles like a swiss watch. enjoyed your enya column. p.s. just picked up a brand new one for next to nothing. June 16 2008 (33) e

	Arnold L. Nelson
	Have used Supercool F2C props on my US 21 Sport bird with great sucess. June 1 2008 (32) e

	Les Davis
	Stu,After infro on prop to suit AT-6 racing with O S 120 AX Please Les. November 20 2007 (31) e

	Chuck Bartunek
	Thanks for the historical account of the Enya engines. Does anyone know where I can acquire a Dykes ring for my Enya .40 model 4002? Suggestions welcome. E/mail blackbart12@sbcglobal.net Thanks. October 21 2007 (30) e

	Robert Connet
	Great site, I particularly enjoyed the articles by Bob Allan on the early Enyas. Is there any way I could get in touch him to talk about an Enya 19 (sandcast) that I bought in Japan about 1951 or 1952 October 17 2007 (29) e

	Jari Valo
	Nice site , spesially propeller theory with supersonic speed area. M 08-09 . Maybe more discussions / co-operation later with you. Sincerly : Jari Valo July 25 2007 (28) e

	Kim Parks
	Stuart The only problem I have with your website is that I never allow myself enough time to look thoroughly at it. It is always a great read and your willingness to share your knowledge is very much appreciated. Thanks for your contribution to modelling. July 19 2007 (27) e

	Alwyn Smith
	My first look at your site June 22 2007 (26) e

	Browny
	Thanks Stuart, your trial of that 22 x 13 prop on the Zenoah 74cc, haulled the big Jall Bulldog to 2nd in Adelaide this year, many thanks for your assistance. April 24 2007 (25) e

	Nick Danger
	Most illuminating! Enya article was excellent help in sorting out some 40 year old nitro burners. April 3 2007 (24) e

	Phil Plumbo
	In your Acoustic Antenna 2 article, you lament that no one knows or stocks Vero boards. I'm not sure, either. I have one type of prototyping board that uses a push-down tool to push wire down into forked contacts, displacing the wire insulation. I also have some very nice traditional wire-wrap prototyping boards that I got when I worked on Airfone in another life. Does that sound like what you need? Contact me and I'll send you a photo. April 3 2007 (23) e

	chris and Torrey Huxley
	I have been carving my own propellors for my powered paraglider. I came across your website when I was looking for info about this. I have really enjoyed reading your articles about props and I am considering buying your book. Is it still available? I have a couple of questions: what features optimize a prop for the pusher configuration? In your opinion, is the bicambered air foil used on the Felix prop all its cracked up to be? Why are "Q" tipped props used on the Aero Commander? I maintain this airplane at work. I also maintain DC6's, Firecats, Convairs, AT802's. Piper Aerostars, and CL-215's. Your articles have really helped me to appreciate the variety of propellors on the aircraft that I work with. Thanks, Chris Huxley March 19 2007 (22) e

	BOB ALLAN
	Dear Anonymous, Please contact me re. your intriguing message. November 21 2006 (21) e

	balwinder
	interesting site sir i am an auto eng student got interest in model making tried but due to less infermation it is not poss to do so so kindly send design and dimention if possible i will be thank full to you thanks November 16 2006 (19) e

	Anonymous
	Message for 7enya7 Bob That engine on E-bay is a scam. Not an old one made recently. Just thought you should know October 30 2006 (18) e

	Fred
	great stuff mate October 30 2006 (17) e

	Luigi LANZONI
	I fly F2C in Italy. I bought from you some props circa 5 years ago: very good product, but different in setting from the type I used and I use actually. I am interested in your analisys/design of propellers so I look with attention the performances of Australian F2C team in Valladolid World Champs. But my thinking is about the return of mono blades in F2C: I tryed, just for approssimation, with an old Cipolla type monoblade (about 1988/1990) and, reducing the diameter (modern engines revs higher), it look not impossible to have good results. The tests have to be very long now, but what about in your idea? Thank you for your attention Luigi LANZONI October 2 2006 (16) e

	Dave Green
	Great articles and some really well designed props! August 24 2006 (13) e

	Kevin Pererya
	Just another engineer bitten by the "Make a better prop bug". Wish I was on the same continent, I'm sure a beer or two would lead to some interesting theory sharing, might even get in something about props August 21 2006 (12) e

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