Sven is the one with the red flag...
from the Collins Class wiki page....
"....while the boats' maximum speed, manoeuvrability, and low-speed submerged endurance were found to exceed specifications.[66] The ship control system, which during development had been marked as a major potential problem, functioned beyond positive expectation: for example, the autopilot (which aboard Collins was nicknamed 'Sven') was found to be better at maintaining depth during snorting than most helmsmen."
