BVI Hunter
Bronze Member
Old man, I just had a long conversation with a very old school friend who makes metal detector machines that screen for ferrous metal before you get anywhere near the huge hospital MRI magnets...and also screens for shives in prisons.
He is gonna look at making a very cheap mag for ferrous that shoots thru the hull of a boat, very useful if you are looking for cannons and anchors on the quiet....the cannon or the boat has to be moving but that's no sweat.....it doesn't work on stationary ferrous.
Sounds good!!
although if the cannon is still moving, be prepared to respell boarders!!
For our US pals..... Shive = Shank although in jail, sadds was too busy picking up soap to worry......