>Your pictures show the ventral installed during the building phase. I'm curious how you tested the aircraft without it. Is it removable?

 

>Thanks. Dave.

Good eyesight and logic.  The fin shown in the building phase was on another airplane with an unusually large engine that never flew.  The PT 6 turbine version was flown without the fin originally and then after about 3 hours the fin was added. Chronically the airplane in the building phase was first and the turbine was the second installation.  We got good information by flying with and without.  We had expected to have some directional problems on the turbine and discovered that power losses at high speed with the prop windmilling (unfeathered) could be very exciting.

Jack Webb
L 360, L IV
ATP, CFI Airplanes & Instruments, Multi, & Sea
Many Type Ratings
Experienced Experimental Test Pilot both multi and single engine
Former Chief Engineering Test Pilot for a Major Manufacturer
AeroSpace Engineer BSAE
Ohio