Del Johnson

Will be interesting to measure the pressures and flow when you
get it flying. Should work fine at 0-100 MPH speed ranges. The
effectiveness of an exhaust augmentation, by its very nature,
is reduced as the aircraft speed increases.

Paul Lamar

Your last statement is true for all cooling systems.  You have more than
enough airflow for cooling at cruising speeds but you size your openings

for

worst case senario (climb out, ground taxing & runups).  If exhaust
augmentation works like the research papers and Contact articles suggest

you

get a boost in cooling effect when you apply power (when you need more
cooling).  It has the potential of reducing cooling drag for the faster
flying machines because the air intake openings can be smaller.

P.S.  The Glastar is slower than the RV's but should be able to do 175+

mph

max and 155-160 mph cruise, assuming that it isn't equipped with floats.

Del Johnson

Del,

Your ideas on stol aircraft taxiing (sand,  mud, snow, other high hp
requirements) and landings with lots of power on final are good points to
consider with exhaust augamentation. Thought about it alot too.  Kept coming
back to the worse case scenario of taxiing to somewhere on flyins. If I
remember correctly Tracy had some kind of "water augmentation" that worked
for the worse case scenario.

Have a couple of ideas for the problem areas we have.   Nothing worse tho
than an electrician doing thermal dynamics....

Barny
MGDQ Super Rebel 20bt

 
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