Basically, say you have an object of a certain mass, and a propeller (or number of propellers) with any characteristics you need (diameter, pitch, number of blades etc.).How can you calculate the amount of horsepower you'd need to power the props that make the weight hover in the air?In other words, I want to know how many kg a certain amount of horsepower can lift, given the most well-suited (i.e. efficient) props or rotors available.If you prefer demonstrating the calculation with numbers, consider an object that weighs about as much as a small car (1200-1700kg).
I would say that changing mass of fuel (per minute) ever equal to changing of speed if there is proper form of airplane. For helicopter it sound as the high tale the mor speed (just as for cow).It have meaning only speed of lifting itself in that case.So any amount of mass answer is.But slowly if there is only one horspower. There were the works of some scientist ,Gydrodinamics and it can be resolved by differentiation the proper equations for any mass,speeds and powers.
hp = [ w * v / (33 000 * eff) ] hp = hp rating of the hoist w = weight in lb v = hoisting speed ft/min eff = efficiency normally 0.65
