Forum Discussion
4x4ord
Mar 04, 2017Explorer III
travelnutz wrote:
Me Again,
DUH! HP is merely a theoretical calculation moniker derived from how fast the TORQUE applied to the drive wheels rotates them thus creating measurable RPM. HP is NOT a direct measurable value! Zero torque = Zero RPM and thus Zero HP could even be calculated. Even 1000 lbs feet torque with zero RPM = zero HP. There is Zero RPM if there's insufficient TORQUE to rotate the wheels. HP is merely a theoretical value calculation, not a measured value!
A "horse" does not have a given pulling or rotational strength value as there are vast differences is sizes and pulling strengths of all the various horses. A given size horse's pulling strength can be actually measured but which horse?
The more FORCE (TORQUE) one applies to wheel shaft, the more RPM's it will turn! No where is the word HP used or even involved to make the wheel turn to any RPM's!
TORQUE and RPM are measurable but NOT HP as it's only a theoretical calculation!
Read the article that meagain posted a link to. Power is the rate of doing work. Neither Rpm nor torque are needed to calculate HP. The formula: HP= torque x rpm/5252 is derived from the definition of horsepower(1 horsepower is the power required to lift 550 lbs 1ft in 1 second). If the formula involving rpm and torque were to be stated accurately it would read HP = torque x rpm x pi/16500.
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