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2. EmPower (aircraft power adapter) - Wikipedia

   en.wikipedia.org/wiki/EmPower_(aircraft_power...

   The EmPower universal AC outlet is compatible with power plugs from over 170 countries and is designed such that 110 V AC power is not present at the outlet until a suitable plug is fully inserted. The AC EmPower system converts aircraft 400 Hz AC or wild frequency power to standard 60 Hz AC.

3. MIL-STD-704 - Wikipedia

   en.wikipedia.org/wiki/MIL-STD-704

   MIL-STD-704 Aircraft Electrical Power Characteristics is a United States Military Standard that defines a standardized power interface between a military aircraft and its equipment and carriage stores, covering such topics as voltage, frequency, phase, power factor, ripple, maximum current, electrical noise and abnormal conditions (overvoltage and undervoltage), for both AC and DC systems.

4. List of military electronics of the United States - Wikipedia

   en.wikipedia.org/wiki/List_of_military...

   Very high frequency (VHF) two-frequency long range early warning radar: General Electric: AN/FPS-26: Height finder radar: AN/FPS-27: S-band Frequency Diverse (FD) search radar: Westinghouse Electronics: AN/FPS-30: Long range early warning radar: AN/FPS-35: Frequency diverse long range air defense search radar: Sperry Corporation: AN/FPS-41: S ...

5. Cycloconverter - Wikipedia

   en.wikipedia.org/wiki/Cycloconverter

   CCVs are used for driving mine hoists, rolling mill main motors, [4] ball mills for ore processing, cement kilns, ship propulsion systems, [5] slip power recovery wound-rotor induction motors (i.e., Scherbius drives) and aircraft 400 Hz power generation. [6] The variable-frequency output of a cycloconverter can be reduced essentially to zero.

6. AN/MPQ-64 Sentinel - Wikipedia

   en.wikipedia.org/wiki/AN/MPQ-64_Sentinel

   Identification of friendly aircraft is aided by identification friend or foe (IFF) interrogation. The system can be deployed using HMMWV fitted with a 10 kW 400 Hz 115/200 VDC on-board power generator. It can be operated autonomously and communicate with the fire direction center via wideband fiber-optic link.

7. Frequency changer - Wikipedia

   en.wikipedia.org/wiki/Frequency_changer

   Often airplanes use 400 Hz power so a 50 Hz or 60 Hz to 400 Hz frequency converter is needed for use in the ground power unit used to power the airplane while it is on the ground. Airlines might also utilize the converters to provide in-air wall current to passengers for use with laptops and the like.