MW50 -Secondary effects were cooling of the engine .

[RPS69]

Originally Posted by Shardur

To the topic:

I think that the Spitfire is a bad comparison here since its boost does not come from a Water/Methanol injection system but from supercharger air compression. Creating additional boost with the help of a supercharger might be effective, but unlike a water injection does not help with heat management and actually creates a lot of additional heat. This also explains why the RAF recommends the WEP boost to be used only for 5min while the MW50 was recommended by the Luftwaffe to be used for 10min at a time.

I was doing a comparison in between engine blowing UP.

Still I must agree that the stationary condition must be worst for the Spitfire, since MW50 cools the engine even without movement.