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supporting grid floor keel

I-Beam Mast support rusting - Endeavour Owners Group

Mast Step/Grid (I-Beam) Rusting (E35 to E43) ... that what everyone is talking about is an I-beam that runs under the flooring that supports a keel stepped mast.

Construction details - Hallberg-Rassy

The GRP hull is reinforced with a grid structure at floor level to give it ... The mast is carried through the cabin to the keel by a stable support from the deck down...

Dufour Insider: How the boats are built (Part 3) | DUFOUR YACHTS

Feb 17, 2015 ... Dufour's grids are built the same way the hulls are. ... as it is strong and allow for wonderfully clean locker and cabinet floors, as well as sump areas. ... The support beams are molded into the grid and the entire structure is fused to the hull. .... Dufour Insider: Keel… on Dufour Yachts: How the boats a…

A Look at Sailboat Design: Fin Keels vs. Full Keels - Practical Sailor ...

PS s technical editor examines how fin-keel sailboats present design challenges ... New floor frames were added, the broken transverse members were replaced, .... The stainless-steel grid built to support the keel loads incorporated a gradual...

KEELGRID FRP Ceiling Grid Installation & Specifications – Keel ...

Keel Manufacturing, Inc. Installation As the above photo shows, KEELGRID assembly is ... Splice clip for joining runners and grid end supports; Cross tee clip for...

How Secure is Your Keel? - Sail Magazine

Nov 4, 2013 ... It is a good practice to inspect the keel joint while the boat is in its slings, as this .... Probe all grid, pan, floor, step, and bulkhead bonds with your...

Keels Falling Off - Sailing Scuttlebutt

catastrophic failures related to sail boat keels and the structures that are supposed to hold them in place. ... shear stress in the shell plating and supporting structure as the boat tries to fold ... keel grid if the impact is severe enough. Common .... This included dry spots in the hull laminate, under-building of the floor and girder.

FIBERGLASS BOATBUILDING: Internal Hull Structures - Wavetrain

Sep 24, 2011 ... Floors are transverse sills in the bottom of a hull on which cabin soles ... floors provide critical support to the root of a sailboat's keel where it meets the hull. ... modern shallow-bilged boats have a unitary grid, sometimes called...

Keeping the Keel Attached | Steve D'Antonio Marine Consulting

Jun 15, 2014 ... Like bookends of keel design, these two under body extremes reflect how .... but the FRP hull skin laminate and associated supporting structure failed. ... Floor frames fractured, and although the hull skin had not been void, it was ... the installation of an elaborate grid that engaged each keel bolt and spread...

What the Hull…There's More | Part 2 | Tartan Yachts

Proper framing, structural bulkheads, engine beds, keel floors and ... In a sailboat, supporting the keel requires an extensive grid of frames that spread the load...