> You know I have been looking at the cooling system issue. and the
> lengthy discussions about it.
> Here is a simple solution that covers everything that has been
> talked about
> Will run anyway up without any loss or concern of loss of liquid.
> Will allow and engine to run inverted for extended periods of time
> without a problem.
>
> I have made and used such systems on some of the racing engines I have
> built in the past this just works.
> You must a have pressure relief somewhere in the cooling system
> should a
> major failure occur somewhere else in the cooling system otherwise the
> radiator will be the thing the gives in.
>
> Liquid section must be at the top when bleeding the system the
> floating
> piston should be at least at center of the cannister when the
> engine is
> cold.
>
> Regards David Gaze
>
> David, what are the dimensions of this can?
>
> Paul Lamar
FWIW, I think that if a good all attitude cooling system can be
designed then that should be the standard system regardless of
whether or not the airplane is intended for aerobatics. Jerry
----------------------------------------------------------------------------------------------------------------------
Ah somebody agrees with me!
It does have to used for a craft that will fly inverted.
It just has to work!
If it is inexpensive to make then there is no reason not to such a system.
One thing I have not mentioned is that any constant pressure system
needs to CLEARLY LABELED that it is under constant pressure ALL the time,
otherwise you will have a big mess on your hands! if somebody opens it
without knowing. The only reason for opening it would be for maintenance.
The things about a constant pressure can like the one I drew up in a few
minutes is that it is cheap to make.
Anyone can make this or get the local engineering shop to makeup the parts.
You will need a lathe, pedstall drill, torque wrench, some rubber "O"
rings / knife edge seals & some arm work and a few fittings and care in
assembling it.
It is inexpensive to maintain, virtually incapable of failing.
I have just sent an update, I need to know what space is available in
order to design a unit or units that are suitable.
I have also stated that I can design a storage tank system that will
compensate for a slow loss of coolant in a cooling system, again simple
to make simple to maintain.
If a catistraphic failure was to occur such as burst raditatior hose
then it will not help but a leak in the radiator or a slight leak from
the engine it will.
The only disadvantage of this is that you would be carrying somewhere
within the craft the additional weight of the coolant which would likely
be in the order of 8 t o12 liters
depending on the space available (US 2 t o3 Gallons) you also need to be
able to get to this storage unit when you need to replace the coolant in
it for such things as scheduled servicing and replacement of the coolant.
Advantages should a leak develop the pilot will have more time to make
an informed decision about what to do depending on the rate of coolant
loss.
Regards David Gaze
Technical Director
Corporate Systems Pty Ltd.
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