Hi
BOAC
What about a 10 kt headwind, then, Eck? perhaps you mean 'zero GS' (think conveyor belt?)
No, I think I mean TAS. An aircraft flying at 100kts TAS into a 100kt headwind requires exactly the same power as an aircraft passing it in the opposite direction at 100kts TAS with a 100kt tailwind.
If an aircraft is parked with the engines shut down and the park brake set, is there any need for any 'power'? What about a 10kt tailwind? Does this require some sort of 'reverse power' to resist?
The fact that that aircraft remains stationary comes down to the friction between the tyres and the runway.
BTW, what's an Oozlum bird?