What is assumed temperature?

[Goose2]

Been a few years since I flew a plane that called for "flex" power for takeoff, but this is what I remember... Flex power is calculated by assumed temp, and then used to prolong engine life (reduced thrust settings on takeoff). Is that correct? What am I missing? Thanks!

[XPMorten]

Goose,

This should answer your
question.

Cheers,

Morten

[barit1]

You can also go to:

Tech Log » Flex thrust and fuel comsumption

...and look up posts dated early May.