"M" wrote in message
oups.com...

steam before dumping it out the exhaust.

I never quite understood why injecting water into engine will increase
its performance. I have no doubt it's true that Boeing used to do that
on their jet engines. Anyone here can provide a scientific answer?



http://www.rfc.ca/NewSite/You_asked.htm

Double whammy:

1. cools intake, makes an effect similar to octane increase

2. steam expansion in combustion chamber adds volume (ie: power).