What Am I Doin' Wrong?

Whenever I fly the B-26 in CFS3 I can never get the bomb bay doors to open. I hit Shift + 8 as the manual indicates, but it never works.
What else do I need to do?
Help!!!!
What else do I need to do?
Help!!!!
Flight Simulator and other chat
https://forums.simviation.com/phpBB3/
https://forums.simviation.com/phpBB3/viewtopic.php?f=6&t=20773