Another interesting tid bit was the the fact that the S.6B's RR engine
was rejecting 40,000 BTU each minute by the surface radiators
covering almost every square inch of surface on wings and floats.
40,000 BTU's/min  is 703,333 Watts! Or 1,280 HP worth of waste
heat. In the earlier, S.4 design, the conventional cooling radiators
mounted in the wings were responsible for 38% of the total drag.

Hi all:

        I thought about a surface radiator for the Cozy oil cooler
but haven't pursued it very hard because of:

        1) Maintenance - Porsche tried it in the 50s-60s on their racing cars
        and gave up due to leaks.

        2) Weight - The surface would need to be alumimum plus the piping,
        etc. I thought about using that carbon conductive foam but corrosion...

        3) Temp - I'd have to insulate the cooling surface from surrounding
        structure - not a biggie, but still weight.

        Of course, NO drag is the driver here! If someone has better/different
ideas/fixes for these problems, please let me know.

Regards,
James

 
The AirCraft Rotary Engine NewsLetter.              Powered by Linux.
ACRE NL web site.
http://home.earthlink.net/~rotaryeng/            http://www.linux.org