> What info is out there on inverted flight.  It looks like the Christen
> or Raven inverted oil system will work.  But has someone done the
> homework for plumbing?
>
> What about the water cooling system?  Has someone solved that issue too?
>
> Chris
>
>
> Yes there needs to be some expermenting done on sustained inverted

flight

> as far as the oil drain back system is concerned.
>
> Don't know what you mean about water cooling. Usually it is pressurized
> so there should be no problem.
>
> Paul Lamar

If I set up my cooling system with a header tank and an overflow tank

above

it in normal flight, then when I go negative G, or inverted, the coolant
will flow into the overflow tank and then overboard.  My first thought is
that all I need is a  check valve between the header tank and overflow

tank

and another for the overflow tank vent.

Chris

Certainly fluid will flow out of the over flow bottle but not out of
the main cooling system into the over flow bottle because of the pressure
cap. Stock cap is about 16 psi and 30 psi is recommended. A U shaped over

flow

tube from the top volume of the over flow bottle will minimise
the coolant loss from the over flow bottle.

Paul Lamar

The P51 was placarded against exceeding 15 sec inverted - primarily oil
frequently our hot jocks  in Japan would expell a huge stream of white
smoke, but
no damage  after a full flight line inverted Buzz job (Kisarazu 1947)
Vance

Are you out of the hospital Vance? Can you make it over to SZP
tommorrow. We are working on Alex's airplane trying to make it cool.

Paul Lamar

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