Tacho Meter
Sorry but the search facility is disabled at the moment so this question may have already been asked before.
Usually when I'm hiring a plane it is on the basis of brakes off to brakes on.
Now I'm being offered the hire of a plane on the basis of per Tacho Hr.
The school is saying that I should get abt 1.10-1.15hrs flying time per tacho hr. Which sound great to me.
What I don't understand is how the tacho meter works. I assumed (obviously wrongly) that as soon as the engine started the tacho meter started as it is combined with the RMP gauge.
Does the meter only start to move when the RMP is increased abv a certain level i.e. 1000 rpm? Or is it linked to the amount of power that the engine produces i.e. manifold pressure.
A simple answer would be great.
Thanks