Emergency Power Unit

If an engine failure occurs, the Emergency Power Unit (EPU) starts automatically in order to provide the plane with the required hydraulic pressure of the primary system. The EPU can run for about 10 minutes due to an own fuel reserve (see EPU Fuel Indicator). When the EPU is running hydraulic system B is inoperative. When the EPU has no more fuel, both hydraulic systems fail, making the flying of the A/C impossible. Under these conditions ejection should be done. This panel is located on the left console.

	The panel and his elements
	Pictures from the Emergency Power Unit Panel

Element	Type	Position	Information
EPU	3-Way switch (Safety bar)	ON	Start the EPU manual
NORMAL (Safe)	EPU will start and run automatically
OFF	EPU doesn't run exept when no generator present
Status light	Light (green)		On, if EPU is active
Status light	2-Status light (amber)	HYDRAZN	On, if EPU is consuming Hydrazine fuel rather than running off engine pressure
AIR	On, if the EPU has been commanded to run

Note:
The showed panel drawing is a drawing with can be downloaded from my page Documents, plans and diagrams from the F-16.

Note:
To zoom please select the picture with your mouse.

Source:
Picture No. 3 was provided by Kostas Kefalas.



Home Imprint Privacy Real Parts Left Console	(c) by Martin "Pegasus" Schmitt


EPU	11.01.2003