ORIGINAL: crispinchurch
am i right
on the ground i put a rope a round the tail with a set of scales on it between the holding stake
at full power take a measure of 2 kg at 12000 rev on my tacho
plane is a great plane extra weight 3.2 kg
am i right in thinking that this should be more pull on the scales
or cant it be measured in this way
That way of measurement is accurate enough.
As others have explained, lower pitch - higher diameter propellers will provide more static pulling force and more capacity for hovering the plane, if 3-D is your thing.
This is a good article:
http://findarticles.com/p/articles/m...8/ai_n8918840/