The link to the Purdue article is addressing turbine engines, not normally aspirated piston engines. Water injection in turbine engines is intended to increase available thrust. It does so by increasing mass flow through the engine, reducing the turbine inlet temps thereby allowing additional fuel flow to bring the turbine inlet temps back to their design limits- all resulting in increased thrust from the existing engine - we used it on early B52's and 747's as a cheep way to get bigger payloads off the ground on takeoff - it is a bit hard on the engines and increased their overall maintenance costs. As a result, installing engines capable of the needed thrust w/o water injection was the better solution and the water tanks on both airplanes were deactivated once those engines became available
-- Mike Simmons On Thursday, April 20, 2023 at 11:37:46 AM PDT, John Gotschall via KRnet <krnet@list.krnet.org> wrote: Has anyone here operated such a a system? Jg -- KRnet mailing list KRnet@list.krnet.org https://list.krnet.org/mailman/listinfo/krnet
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