You have to go back through the evolution of sport fishers. Originally you were dealing with normal, low boats. Then someone figured out that if you got higher you could spot the tuna schools further away, hence the tuna tower. Then the helm moved up so the skipper could also be the spotter, and boats started going out in worse weather as it became more of a tourist business. Now you're getting waves over the bow and coming through the glass (not safety glass). Since the helm is now moved up why not bring up the whole bridge ("flying bridge") and just close that lower glass so you can chase the school further. Then the new taller tower, then the enclosed upper helm and the really tall tower, now with a helm up there. Now we have 124 ft. sport fishers with 3 or 4 levels, plus towers and 5 helm stations capable of coming home from absolutely insane conditions. What's hard to understand? It's just another game of mine's bigger than yours.
I just saw a thread starting on the biggest fish you ever hooked (not landed). You know we'll soon be hearing about 25', 5,000lb marlin
Fishtigua,
first, you're commercial (real) not sport (showoff). Second, compare your glass to the glass on a 1970's cruiser. You wouldn't want to be standing behind it when a 1,000 gallons of seawater hit.