Your Best explanations please
I'd like the best explanations/definitions on the following from some of the boffins here pls
Redefined Thrust,
TAT,
SAT,
Slippery,wet,contaminated runway,
What factors you take into account for descent planning (specifics for the 747-300) and how accurate it turns out or is it a waste of time since you will more than likely get told when to go down anyway?
Turbine Case Cooling,
Why 7R4G2 engines develop the rumble above FL250/320kts if you reduce thrust to idle?
How a cost factor of around 120-130 (scale 0-400) would fit into the speed ranges of MRC, LRC, ViMD?
Thanks