RE: Good beginner computer radio reference manual?
Save the aerobats for a different heli.
Though the Kavan Jet Ranger was the first r/c helicopter flown inverted in competition, Ernie Huber did it.
Its quite the antique, the NIB kits go for over 1000 dollars on ebay. I was lucky to get mine from someone that had it in their attic for several years and knew I would really appreciate it. If its in good shape 4 to 8 hundred on ebay wouldn't be out of the question.