Hi all. I have 1985 princess 385 with old style flybridge seating/tandem/ and i would like to changed it to newer style/L shape plus helm/. The old seats are attached to the floor of the bridge with bolts coming thru ceiling. How can I remove them ? Must I remove the ceiling? How can I remove the ceiling without damaging it? The same goes for radar arch bases.

Vlado

Unless you can get access to the heads of the bolts, you must remove at least part of the ceiling. I think most ceiling are put in with snap in fittings and sometimes screwed in place as well in certain places for extra security.