Snip


 Anyone know of aerodynamic advantage(s) of the inverted-v tail on the
 Predators?

 r berglund



 I doubt it's aerodynamics..  It probably just keeps the prop from
 dragging on the ground.


 Matt-

 It complements aileron roll.  Upright V-tails fight it.  There's also no blanking at
 high alpha. (AoA)

 Chris Cosman

 Good analysis Chris. Makes sense. I know you guys have thought a lot about it.

 Paul Lamar

 Dump the Dems

 Here's an updated photo for your files.  The FAA won't allow us test fly out of our
 home airport, even though this we've test flown 3 other home builts at this airport.
 At this point we're waiting for the DAR inspection and trying to find a hangar at
 another airport that isn't "locked in" by homes.

 Chris

 Cute Chris :)

 Too bad it cannot have a rotary.

 Paul Lamar

Ouch, that hurts!  The next one will have a one-rotor, I guarantee it.  The only
reason this one doesn't is because I've been in school full time (including summers);
 none left over to engineer the necessary motor integration bits.  This way the
airframe gets in the air and we can move on to refining the design with the beta
prototype.

This better be the LAST piston engine I ever install in an aircraft.

Chris Cosman

Good work going to engineering school. IMHO there are not enough people
doing it.


Paul Lamar

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