By Capt. Bill Pike After modifications, a 51-footer with triple IPS units heads for some open-water testing. Here's a stringer grid being installed in the 51's engine room. They'll be gelcoated to produce a clean, finished product. View of the completed triple-IPS installation inside the boat. View of the completed triple-IPS installation outside the boat. Propellers have yet to be secured, of course. Another triple-IPS hull is readied for open-water testing. Note the temporary helm station. BEIC techs work with employees of boatbuilding firms while training them in IPS technology.