Jay wrote:

Hi Pete,

What factors dictate the difference between max and continuous rated
power? The main one I can think of is the ability to remove waste
heat. And of course a diesel produces less waste heat per unit HP
than a spark ignition engine.

Regards

"Pete Schaefer" wrote in message news:8JSic.32612$IW1.1418846@attbi_s52...


What's the continuous rated power? Peak power numbers are meaningless for
aircraft.

"Bryan" wrote in message
...


Has anyone been able to find the weight on the VW V10 diesel engine? This
engine produces 550 lb/ft of torque at 2000 rpm and 310 hp at 3750 rpm.
Sounds like a great candidate for aircraft to me.


I always thought the difference between max and continuous rated hp was
its ability to not self destruct at a low or reasonable TT. Lots of
factors come to play here. Example, an engine that is rough at higher
rmp would, from lack of better words, shake it's self apart. You know
the faster it turns the more centrifical force. The harder it rubs the
faster it will ware. Of course heat is a factor also, the faster it
turns, the more fuel you putting through there, the hotter it gets. It
also gets hotter from rubbing harder. If you turn the engine from an
external power source, it will build up heat and the faster you turn it
the hotter and that is with no internal combustion. Now I know that heat
wouldn't ruin an engine, but it adds.