Joseph M Berki wrote:

Paul,
        When you tested the wedge duct  (Caravan road test) with the

curve in the

duct floor what was the pressure like on either side of the rad?  How

was

the distribution across the face of the rad?  Thanks

Joe Berki
Limo EZ

The static  pressure on the back side was ambient. The front side was

about 80% of

dynamic pressure. The air velocity through the rad was about 40% of

forward

velocity. The velocity distribution through the rad was more or less
uniform.

Paul Lamar

Kevin & Kim wrote:

HA HA HA!!! Those pics of the plywood test fixture mounted on top of the van
made me laugh out loud.  They remind me of other pics I've seen.  One was an
old pickup truck with a tall super structure mounted on it.  That was used
to train pilots of the new 747 how to maneuver the plane around the ground
while sitting in a cockpit so high.  Another was a Buick (I think) roaring
down a runway in the 50's with some sort of contraption on it.  Keep in
mind, these were major defense contractors using common vehicles to test
their "space age" ideas and concepts.
Sometimes the best ideas are the simple ones.
A footnote:  After having been in the Army and now in the Air Guard, I
sometimes wonder how the Air Force keeps spending rediculious amounts of
money on trivial things.  A friend of mine who was a Marine, then transfered
into the Air Nat'l Guard said it best.
"The Marine Corp has the smartest bunch of dumb guys I ever worked with.
The Air Force has the dumbest bunch of smart guys I ever worked with."
 - Daryl Gibson

Kevin in Denver

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