Camera always rear looking

[gi-len]

All,

Clearly a newbie here. I'd like to figure out if I can setup a key that when I press it immediately gives me a rear looking camera angle from the aircraft. (So that when I drop a bomb I can look behind me and see if it hits). I know you can do a weapon view but I want one from the plane. Problem is F4 gives me a wing view, looking forward. I can swing it around but is there any way to lock it to always come up looking backward?

 

Thanks in advance! Sorry if this is a dumb question.