Bob I do have considerable experiance with aerotow and at both ends of the towline. I have flown many tows with R/E gliders and found that is a challange that never looks very pretty. Therefore we have always recomended gliders with ailerons.

Now in the case of the tug I have never tried a R/E tug and don,t think that would be a choice I would want to spend a lot of time on and attemting chamber control with the tug is only going to complicate matters more.

I do understand the desire to want to use old timer type airpanes on both ends but a better choice for the tug would be an old time with dihedral instead of polyhedral and reduced somewhat with ailerons. There are many old timers which could fit this bill nicely with just the addition of ailerons.

Actually using chamber control on the glider is an asset that that I have experimented with considerably. I have a Seniorita without engines in this case, that I use as an aertow trainer and has full span ailerons that are also set up to provde chambercontrol. For tow the ailerons are set at full reflex which reduces lift and helps the tendency for the towed aircraft to overclimb the tug and improves the pilots ability to maintain control of the glider when it is being towed. After releast the ailerons are put into down position to provide max lift and the slowest descent.

I wish you the best with your adventure aertow is great fun in itself and something more than just a way to 'get it up'[8D]

John