I seem to have come late to this scrum...

Anyway, the last poster missed a thing or three... Like Euler, like
Boyles law, like the equation for lift, like Bernouille, etc..

The biggest thing he missed is if you heat a gas and keep its pressure
the same then it has to expand (That old Boyle guy again)
Expanded gas means the molecules are farther apart... Molecules being
farther apart means less density, less density means less lift...

Ya know in the ancient times of BI (before internet) you had to truck
down to the library and dig through piles of books to find this
information... Today, in 0.002 seconds your web browser will pull up
the articles and equations on this subject... It is highly recommended
by me...

denny