Camarogenius
Member
Okay, Help a genius understand something.
In the world of scale model Warbirds, At full size, these things have 2,000 horse power, and weigh about three tons, in the case of the P-40. I'm sure others are heavier, but that's not the point.
Strictly from a size standpoint, if the size is only reduced by 25%, shouldn't the 75% scale model require 1,500 horsepower?
I see these 75% scale models, and they're only using 200 or 300 horsepower. I'm not sure I understand.
I understand that the weight of a scale model is much less that the original, due to it's construction, Lack of armor and armament, etc.
Is the reduced weight enough to allow a 25% reduction in size compatable to an 85% reduction in horsepower? And by deductive reasoning then, can I assume that a full scale warbird replica could give good performance with greatly reduced horsepower, as long as the weight is reduced roughly in proportion to the horsepower?
What is the magic horsepower to weight ratio?
I'm just trying to fine tune my understanding of the mechanics of flight.
In the world of scale model Warbirds, At full size, these things have 2,000 horse power, and weigh about three tons, in the case of the P-40. I'm sure others are heavier, but that's not the point.
Strictly from a size standpoint, if the size is only reduced by 25%, shouldn't the 75% scale model require 1,500 horsepower?
I see these 75% scale models, and they're only using 200 or 300 horsepower. I'm not sure I understand.
I understand that the weight of a scale model is much less that the original, due to it's construction, Lack of armor and armament, etc.
Is the reduced weight enough to allow a 25% reduction in size compatable to an 85% reduction in horsepower? And by deductive reasoning then, can I assume that a full scale warbird replica could give good performance with greatly reduced horsepower, as long as the weight is reduced roughly in proportion to the horsepower?
What is the magic horsepower to weight ratio?
I'm just trying to fine tune my understanding of the mechanics of flight.
