Im thinking about changing the portholes in my typhoon to the types seen with larger CD's. The type that open from the inside. My question is if this would adversly effect the structural integrety of the cabin. Any thoughts? I would fill old round hole with fiberglass and locate new ones just aft or perhapes over portion of old hole. what do you think. Has it been done befor and is it possible?
azazz@ix.netcom.com
Typhoon portholes
Moderator: Jim Walsh
-
Paul D.
Re: Typhoon portholes
Adam,Adam Z wrote: Im thinking about changing the portholes in my typhoon to the types seen with larger CD's. The type that open from the inside. My question is if this would adversly effect the structural integrety of the cabin. Any thoughts? I would fill old round hole with fiberglass and locate new ones just aft or perhapes over portion of old hole. what do you think. Has it been done befor and is it possible?
We are changing our Typhoon portlights to bronze ones of the same size from ABI. We decided not to get opening portlights due to not finding ones of the same size that open. Also, we did not want to change the looks of the boat as Carl got the proportions just right! I'm sure it is possible if you do some filling and sanding with epoxy etc. But I would be wary of the increased flange size sitting flush with the coachroof sides due to the latter's compound curvature. If I were doing it, I would place them in the same spot if possible as there will be less material removed, weakening the structure, and the profile position of the portlight will not be changed. Good Luck.
Paul
nyeme001@tc.umn.edu
-
Chuck M.
Re: Typhoon portholes
I share some of Paul's concerns about your plans to install larger and
relocated portlights in your Typhoon. His question about possible structural problems seems well placed since a number of early Typhoons developed compression of the cuddy roof which led to a sinking mast syndrome. I know of cases where the shrouds could not be properly tightened because the turnbuckles had reached their limits and the shrouds were still floppy. Though the additional stiffening of the underside of the cuddy roof under the mast step seen in later models (1974/5 +) seems to have cured the problem, I would be concerned that compromising the integrity of the cuddy sides could lead to compression once again.
MatterC@gbms01.uwgb.edu
relocated portlights in your Typhoon. His question about possible structural problems seems well placed since a number of early Typhoons developed compression of the cuddy roof which led to a sinking mast syndrome. I know of cases where the shrouds could not be properly tightened because the turnbuckles had reached their limits and the shrouds were still floppy. Though the additional stiffening of the underside of the cuddy roof under the mast step seen in later models (1974/5 +) seems to have cured the problem, I would be concerned that compromising the integrity of the cuddy sides could lead to compression once again.
Adam Z wrote: Im thinking about changing the portholes in my typhoon to the types seen with larger CD's. The type that open from the inside. My question is if this would adversly effect the structural integrety of the cabin. Any thoughts? I would fill old round hole with fiberglass and locate new ones just aft or perhapes over portion of old hole. what do you think. Has it been done befor and is it possible?
MatterC@gbms01.uwgb.edu