What lights turn on when starting the engines, and where are they located?

When starting the engines of the MH-60S, the position lights on the stub wings and tail are the lights that illuminate. These lights are crucial for ensuring the aircraft's visibility to other aircraft and personnel on the ground during operations, especially in low-light conditions.

Position lights serve an essential function in identifying the aircraft's orientation and direction. The lights on the stub wings indicate which side of the aircraft is left (green light) and which is right (red light), while the tail light generally provides additional indication of the aircraft's position from behind. This is important for both safety during ground operations and in-flight navigation.

Strobe lights, navigation lights, and landing lights serve different purposes. Strobe lights are used to attract attention and indicate that the aircraft is in operation but do not specifically activate during engine start. Navigation lights are primarily for use during flight rather than during engine start, and landing lights are only turned on when needed for landing or to illuminate the area directly in front of the aircraft. Thus, position lights are the appropriate answer when discussing which lights activate during the engine start process.