Dick Sarpolous did a book that is still available from Carstens Publishing. It's a pretty ggod book for beginners and intermediates especially and I get it out every now and then and just flip through it. I can't think of any just on C/L aerodynamics specifically, but there have been many, many books on model airplane aerodynamics in general going all the way back before WW2. For C/L stunt aerodynamic theory, get a hold of the construction article for the Olympic by Bob Gialdini. It just about covers it all, and was published in the early 60's in American Aircraft Modeler and again in Stunt News by PAMPA. Anything that Al Rabe writes is well worth reading, and you can't leave out Wild Bill Netziband. He wrote articles for Model Airplane News and the other mags that should be compiled into one book
I hope this at least gets you started. Good luck and have fun!
Type at you later,
Dan McEntee
PS; One of the greatest pleasures and most fun I have ever had in my entire life, was getting to sit at the same table at the VSC banquet with Wild Bill Netzeband and Jack Sheeks, two of the biggest Legends of our hobby. I don't know of another time where I learned as much and laughed as much
