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chesapeake 16lt & 17lt aft hatch radius
Building a 16lt & a 17lt from plans and am ready to cut the hatch stiffeners. The manual instructed me to use a 60" radius on the 16lt when planing the sheer clamps for the aft deck, and a 49" radius for the aft deck of the 17lt. The plans are showing a 24" radius for the aft hatch stiffener. My inclination is to disregard the 24" instruction on the plans and cut the hatch stiffener to the same radius I used for planing the sheer clamps on each boat, is that correct?
Thanks,
Dave
4 replies:
RE: chesapeake 16lt & 17lt aft hatch radius
I'd suggest you match the actual deck radius on the front hatch. It is smaller but needs to be just as good a seal.
RE: chesapeake 16lt & 17lt aft hatch radius
Thanks for the suggestion, I will be sure to scribe all hatch stiffeners at the appropriate sections of the deck.
Dave
RE: chesapeake 16lt & 17lt aft hatch radius
» Submitted by nemochad - Tue, 8/11/15 » 10:45 PM
Correct in theory, but the deck will be much flatter than your template a little ways aft of the rear bulkhead. I made flush hatches, and to get the curvature to match as well as possible I cut stiffeners with a crown that matches the actual deck. The forward one is s tighter curve than the aft. Lots of ways to check: lay your template across the deck in front of and behind the opening, and note the different gaps; or scribe the two deck curves directly onto your stiffener stock, etc.