March 2008

Our initial water testing has been completed and we’ve returned the Gweduck to the shop for some minor changes to airframe and systems before the first full flight is completed, most likely later this spring.  With the testing to date we’ve found the water handling is as expected, with minimal spray in the props, rapid acceleration from idle to on the step, and excellent low speed control feel.  We loaded the aircraft to more than 50% of useful load, with water ballast in the wing and sand ballast in the fuselage.  C.G. was changed over a range from forward to middle of the desired range, and operations were conducted with flaps ranging from zero to full flaps.  In all conditions the handling characteristics of the amphibian were as expected, and closely followed our quarter scale model testing.  We’ve also dialed in our flight test data collection system, which includes a variety of engine parameters, airspeed, water speed, and pitch angle.  You can also check out our YouTube videos for these initial tests on and off the water.

Some new videos showing the Gweduck in action on the Pictures / Videos page!