tspeer's Recent Activity

  1. tspeer attached a file to the thread Variable Shape Wing.

    The flap on the OTUSA AC72 could twist 40 degrees between the foot and head. That is the aerodynamic equivalent to twisting the entire...

    PolarsS979c50p42txxp42F828rxx_r3e6n1fix25e-3.PNG PolarsS979c50p42txxp42F828rxx_r3e6n1.PNG HardVsSoftSailSection.png Aug 18, 2019 at 4:00 PM