This depends on what kind of prop is used and how much slip in the water it has.
A 60Hz synchronous motor spins at synchronous speed - if it's a two pole motor it will spin at exactly 1800 rpms. An asynchronous motor will spin at a speed lower than the power supply frequency - a symilar asynchronous motor may spin at 1700 rpms.
Yea, but what if you are building the motor yourself and need to know the maximum rpm it will reach.
When your RPMs get down to 1000, you take it out of gear, press the accelerator to tach the motor up to 1500 RPMs, and drop down into the next lowest gear. Assuming you're operating this truck in North America, your transmission will either be an Eaton-Fuller or Spicer 10 speed unsynchronised transmission, and you must tach up to motor to compensate for the lack of a synchroniser gear in the transmission. If you drop your RPMs down to 700 - 800 before downshifting, you can skip a gear in downshifting, and downshift two gears.
Put a filter in your exhaust to catch the smoke before anybody sees it. Err. get a new motor! lol
Truck driving schools in the US like to teach you to upshift at 1500 RPMs and go back into gear at 1000 (this is with an unsynchronised transmission). Personally, I upshift at 1900 - when you go back into gear at 1500, it bogs the motor down, reducing the service life of the motor.
640 rpms
The RPMs of a D.C. motor will vary depending on the torque required for the application. The more torque required the slower the RPMs. Higher torque requirements will also increase the AMP draw of the motor. Other reasons the RPMs can vary is heat build up, low voltage of batteries, cable size, connection condition and others. You need to make sure your connections are clean, the cables are thick enough to handle the AMP load and your batteries are fully charged for peak performance.
4000 rpms maybe more
Roughly 800 RPMS while in park and roughly 600 RPMS while in drive or reverse
Apporximately 1200 RPMS
cars idol speed in 640 rpms
It depends on what type of car and what gear you are in