What do you use to open the canopy externally?

To open the canopy externally on the F/A-18 E/F, the correct method is to use the drive tool. This tool is specifically designed to operate the canopy mechanism manually from outside the aircraft, providing a way to open the canopy in situations where internal controls are inaccessible or inoperative.

The drive tool provides a reliable means to gain access to the cockpit, especially in emergency scenarios or maintenance operations. It allows personnel to safely and effectively open the canopy without relying on electrical systems or hydraulic pressure, which may not be available in certain situations.

Using the external manual lever or the canopy switch in the cockpit wouldn’t be applicable in the context of an external opening procedure, as both are intended for cockpit use. The hydraulic system is integral to the operation of the canopy during normal functioning but is not the direct method for external access, especially in a manual override situation. This highlights the importance of the drive tool in ensuring safety and accessibility to the cockpit for ground crew members.