Hi Roger: I am shooting the HPAR, and I'm waiting for the shoe polish to dry on a 1/4" high balsa test rib in hopes of getting more upright. What material are you making your ribs from? Thank you...Ernie
Ernie... I believe that I still have one of the "factory" optional hi-ribs that were offered for the 90T HPAR. It is taller towards the receiver end and has a greater pitch towards the front. Doug Braker would know the history, but I think there were only a few produced.