Re: old vs new and torque
The best visual example of torque I've witnessed was a steam locomotive at our nearby railroad museum. From a dead standstill the engineer opened a valve and steam began entering the cylinder and putting pressure on the piston. There was a guage to watch this internal cylinder pressure grow. More and more torque was applied to the drivewheels, but the locomotive was still stationary. The magic formula<br /> HP X 5252 ÷ RPM = Torque<br />was useless since no horsepower was being produced - nothing was moving, no work being done, zero RPM's. But the torque was obvious - you could FEEL it. Eventually that locomotove began to move. Imagine the torque rating that motor has to move its massive bulk at 1 mile per hour at 2 RPM! <br />It would, however, make a ****-poor outboard motor.
The best visual example of torque I've witnessed was a steam locomotive at our nearby railroad museum. From a dead standstill the engineer opened a valve and steam began entering the cylinder and putting pressure on the piston. There was a guage to watch this internal cylinder pressure grow. More and more torque was applied to the drivewheels, but the locomotive was still stationary. The magic formula<br /> HP X 5252 ÷ RPM = Torque<br />was useless since no horsepower was being produced - nothing was moving, no work being done, zero RPM's. But the torque was obvious - you could FEEL it. Eventually that locomotove began to move. Imagine the torque rating that motor has to move its massive bulk at 1 mile per hour at 2 RPM! <br />It would, however, make a ****-poor outboard motor.
