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kw to hp ? no problem

mz

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You can just type
100 hp to kW
In Google. Most browser nowadays even have the google bar so no need to go to google.com for that.
http://www.google.com/search?&q=100+hp+to+kW
 

mz

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Converting thrust to power:

P = F * v

P power in Watts
F force in Newtons
v velocity in meters per second.

So a prop fighter having 4000 N of drag (say L/D 10 and 40000 N weight) at a speed of 200 m/s would need 4000 N * 200 m/s = 800,000 W = 800 kW of power. With prop inefficiency perhaps 1 MW. In obsolete units, that's about 1500 HP.

Instructions for converting stuff from other units to SI ones are above, Google does it.
 
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