If your rotary is over heating on take off and you
need to get back on the ground right
now consider using one of these small high pressure
pumps to spray water on the rad.


For the time to climb air plane
I bought two. One for the rad spray
bar and one for water injection into
the intake manifold.

Easier than just using one and a selector valve.

Paul Lamar


Of course if your overheat blows out all of your water, all the
spraying
won't help. The sprayers will work wonders in a pusher if held on the
ground for a long time with the engine running and little air going
through the heat exchanger

Rich Goldman


Your supposed to check the temp every few seconds when taking off :-)

Paul Lamar

Of course!!!,

However, Not talking about cruising-- merely first tests.if you take
off, you gotta climb and go around and land. With my dragonfly, before I
got a little smart about H2o cooling (Norton-Midwest rotary) I would
blow out all of my h2o on climbout. A little later knowledge and
fortunately no engine damage rectified the problem.

Rich Goldman

Since I wrote the book How to Cool Your Wankel I have not heard any horror
stories on first flight over heating.

However I am sure that there are people out there that will learn the
hard way :-)

Paul Lamar



Actually, Paul, this happened long before your book. I did, however, solve the problem.
With my cozy, now under construction, I did use much of the information gleaned from your book. Thank you for it.
Rich Goldman

Thanks Rich.

Paul Lamar

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