Updating some files for a project I'm working on, drawing a blank so far on these three. Long ago I used to have a cheat-sheet for the FMU series, showing the face plates for quick ID. Cannot find it now....
Thanks Erhard. What threw me off on this one is this item, which is marked as an FMU 54A/B. So the difference is the /B vs the A/B? More fuze questions to come.1st image: FMU-54/B tail bomb fuze, US