I have 4 DVD's by Bob Noll, "Perfect Airframe Alignment", Perfect Foam Wing Construction", "Perfect Removable / Adjustable Stabilizer", and "Perfect Engine Mounting Techniques".

They have been around for years, but the methords that he uses are as good today as they were when the DVD's were made, his home made tail plane adjusters are going into a model that I'm currently building, and I have been using some of his alingment idea's on all types of models that I have made.

They are availible at airborne media, and are worthy of anyones collection, I plan to add to mine with a few of the other DVD's in their collection, the web site is :- http://www.airbornemedia.com/store/rv-index.htm