REFLECTOR: NACA papers, water injection anyone?

[Brian Michalk]

>From Mean Gringo Bob:

Any interest in 263.4 lbs per square inch bmep (brake mean effective
pressure)?  At 1.5 lbs of water per pound of fuel?  Nah - old government
propaganda.  Ignore.  No useful data here.

Report presents the results of investigations conducted on a full-scale
air-cooled aircraft-engine cylinder of 202-cubic inch displacement to
determine the effects of internal cooling by water induction on the
maximum permissible power and output of an internal-combustion engine.
For a range of fuel-air and water-fuel ratios, the engine inlet pressure
was increased until knock was detected aurally, the power was then
decreased 7 percent holding the ratios constant. The data indicated that
water was a very effective internal coolant, permitting large increases
in engine power as limited by either knock or by cylinder temperatures. 
An Adobe Acrobat (PDF) file of the entire report (1008507 bytes): 
http://naca.larc.nasa.gov/reports/1943/naca-report-756/naca-report-756.pdf



 Brian Michalk  <http://www.michalk.com>
Life is what you make of it ... never wish you had done something.
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