Gimbal lock is a phenomenon, it is not a device. Here is a page on gimbal angles and gimbal lock at the Apollo Lunar Surface Journal: http://www.hq.nasa.gov/office/pao/History/alsj/gimbals.html
Thanks.I understand a little now.I kept hearing Gimbal Locks so much on Apollo-13 Movie,couldnt just get it..! Please Register or Log in to view the hidden image! bye!