MJ Sailingvideo
The Details That Keep a Boat Dry (MJ Sailing - Episode 379)
June 27, 2026 · 16 min · 22K views · Kent Island
Crew steers wooden boat past Annapolis waterfront
What this video covers
Matt and his crew are building a custom catamaran and fitting Vetus flush-mount hatches, routing hybrid-system wiring, and installing foam-core screw inserts — all work aimed at keeping the boat watertight and structurally sound.▶ 0:19 The hatch frames are temporarily set in place using tongue depressors to level them before any holes are drilled; each opening was hand-cut to exact Vetus dimensions, and fasteners will thread into pre-decored foam-core inserts rather than through-bolts.▶ 5:35 Even gasket compression is the goal, since uneven clamping pressure is the primary cause of leaks under driving rain and green water.▶ 9:27 For wiring, Matt runs 50 feet of 2-aught cable — the negative ground for the hybrid Yanmar system — through conduit spanning the full beam of the boat, using fish tape and silicone rubber desk grommets at conduit exits to prevent chafe.▶ 1:14 He sequences the longest run first to avoid miscutting the reel before shorter runs are measured.▶ 2:41 Embedded magnets in the hatch frame holes will later hold removable nut screens without permanent fasteners.▶ 11:40 A separate segment covers a day sail out of Spa Creek in Annapolis aboard Ryan and Sophie's Chesapeake Lightcraft wooden boat, touring Ego Alley and the Severn River.▶ 14:01
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