From brass tubing, I built a lever on which to place
lead sinkers to counterbalance the weight of the wing/blade
stiffen the lever, I added a copper tubing sleeve with the last of the
intermediate brass tubing divided into four eighth inch pieces and
solded in the ends fo the copper tube.
Assembled counter-balance with two 1.25 ounce sinkers.
Conventional flight configuration.
Installed on the test sting, the pitch camber was adjusted and
the roll response observed in both blades in VTOL and conventional
After three tests and engine thrust deflector adjustments and vane
elevator adjustments to make the engine thrust axis parallel with the
rotation plane, the model was allowed to achieve its maximum rotation
velocity before the support was released. The blade lift was
insufficient to keep the model level, or the response of the control
system is too slow to compensate at the rotation speed, or both, so it
slowly drifted to one side.
Unfortunately, the scale was not reactivated, so any indication of net
lift was not captured.
Given the inability of the model to maintain level
flight, the road test will initially be conducted with the support in
place to demonstrate transition. The resistance of the lazy susan
bearing is too much for the vertical stabilizer to overcome, so the
stabilizer will be removed.
VTOL configuration "front" view.
VTOL "side" view and Conventional configuration right side view.