LCAC ships supply 400-Hz, 120- up to how many-volts of AC power?

The correct answer indicates that LCAC (Landing Craft Air Cushion) ships provide 400-Hz AC power at 208 volts. This voltage is standard for many military and aviation operations, which require a reliable and stable power source for various equipment onboard.

Using 208 volts is beneficial for efficiency and compatibility with certain types of machinery and systems commonly used in military applications. It allows for a balance of adequate voltage supply while minimizing the risk of damage to sensitive equipment, as higher voltages may pose more risks in terms of electrical stress.

Additionally, the specific choice of 208 volts over other options reflects common practices in the design and specification of electrical systems within similar military settings. This standard is used in conjunction with the frequency of 400 Hz, which is preferred for engine and HVAC systems due to its ability to reduce the size of transformers and provide lighter electrical systems on the air-cushion vessels.

Moreover, understanding that 400-Hz systems operate effectively at this voltage helps align the equipment used, ensuring all machinery can be powered and operated efficiently without risking overload or electrical faults.