by KCStudly » Thu Nov 29, 2012 7:54 pm
re: hinge placement; I have a couple of thoughts on this. First, if the roof extends past the bulkhead some I would think that any leaks or trouble would be easier to spot, otherwise moisture could sneak down the panel unnoticed. Second, on the other hand, placing the hinge at or very near the bulkhead would help make the hinge line more rigid structurally. Lastly, I would pay particular attention to the final height and attitude of the raised hatch.
On TPCE I do not recall the exact dimensions off the top of my head, but the hinge is aft of the bulkhead by several inches (perhaps 6?) and the bottom/back surface of the hatch will be well above head height and relatively level when in the raised position...at least that is the plan. TPCE will have a fairly high ride height so achieving both (on "paper"...er...in the 3D model) was not much of a problem.
No bumping into the edge of the hatch, should be able to stand underneath and stay dry in light rain (provided there is little wind), and any rain landing on the open hatch should run back toward the hinge, rather than run and drip off the rear edge on to me.
$.02 for what it is worth.
KC
My Build:
The Poet Creek Express Hybrid Foamie
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Engineering the TLAR way - "That Looks About Right"
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