Paul Lamar wrote:

A turbo jet is one thing. A radiator installation is an entirely different
thing. There is no analog to a radiator in a turbojet.

To which Russell Kent smarted off: :-)

Sure there is.  It's part of the airpack.  Most of us would call it an
intercooler.  It's used to cool the compressed air bleed before pressurizing the
cabin.

Which provoked Paul's response:

OK Russel :-) Maybe Bernie designed the airpack. :-) On the other hand
perhaps Pratt and Whitney does not supply the airpack.

To be accurate that is part of the aircraft systems and not part
of the engine. When Robin changes an engine on a 747 they do not
change the airpack.

Ok, all smart assedness aside, is the lubrication system closed?  If so, it seems to
me that there must be an oil cooler in there somewhere.  Is it possible that the oil
cooler is a radiator?

Russell Kent

 
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