On the Mark 5 that my Son Captains they had a computer go haywire.
The boat went from dead still to max speed,i think they said something like 80 knots.
It t-boned another boat and all but two crewmen had to be flown to the hospital.
My Son saved his boat from sinking and drove it back to base,when he got there he was asked why he was limping,he had broke his ankle and had a large divot in his thigh.
The others were injured worse.
So yep sometimes computers do go awol.
