Dobbertin HydroCar - Water Test 3 - Amphibious Vehicle

 (Continued from Water Test Two)  For the first time, the HydroCar sat in calm water with the nose higher than the rear.  The prop only needed to be trimmed down a couple degrees to be completely submerged.  This time the front end of the HydroCar actually raised when the RPM was increased.  The prop was still creating a huge ’rooster tail’, so we lowered the trim to compensate, but still couldn’t get the necessary ’bite’ to get it up on plane.  When adding the trim angle to the an