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SHACKLE - A "U" shaped connector with a pin .
or.bolt.across.the.open.end.
SHAFT.-.The.long,.round.member.that.connects..
the.engine.or.transmission.to.the.propeller.
SHAFT LOG - A fitting at the hull bottom where the
shaft.connecting.an.engine.to.its.propeller.penetrates.
the.hull...A.shaft.log.permits.the.shaft.to.rotate.while.
simultaneously.preventing.water.from.entering..
the.hull.
SHEER.-.The.top.of.the.hull's.curvature.at.the.deck.
line.from.the.bow.to.the.stern.
SHEER.STRAKE.-.The.upper.edge.of.the.hull,.
immediately.below.the.deck.
SHEET.BEND.-.A.knot.used.to.join.tow.ropes.
SHOAL.-.An.area.of.shallow.water.
SILENCER - A baffled chamber installed in an .
exhaust.system.to.reduce.the.noise.
SOLE - Term for deck, cabin or cockpit floor.
SPAR.-.A.general.term.for.booms,.masts,.yards.etc.
SPRING.LINE.-.A.pivot.line.used.in.docking,.undoc
king,.or.to.prevent.the.boat.from.moving.forward.or.
astern.while.made.fast.to.a.dock.
STARBOARD.-.Looking.forward,.the.right.side..
of.a.boat..
STARBOARD.BEAM.-.The.right-center.of.a.boat.
STARBOARD.BOW.-.When.facing.the.bow,.the.front.
right.side.
STARBOARD.QUARTER.-.When.looking.forward,..
the.right.rear.section.of.the.boat.
STEERAGEWAY.-.The.lowest.speed.at.which..
a.vessel.can.be.controlled.by.the.steering.wheel.
STEM.-.The.leading.edge.of.a.boat's.hull.
STERN.-.The.back.of.a.boat.
STRINGER.-.A.fore.and.aft.continuous.member.used.
to.provide.a.vessel.longitudinal.strength.
Glossary
STRUT.-.A.propeller.shaft.support.that.is.below..
the.hull.
SUMP.-.A.pit.or.well.into.which.water.is.drained.
SUPERSTRUCTURE.-.Deck.houses.and.other.
structures.extending.above.the.deck.
THWART.-.A.seat.or.brace.running.laterally.across..
a.boat.
THWARTSHIPS.-.At.right.angles.to.the.centerline.
TILLER.-.A.bar.or.handle.for.turning.a.boat's.rudder,.
or.motor.
TOPSIDE.-.To.go.up.to.the.top.deck.
TRANSOM.-.The.stern.cross-section.of.a.square.
sterned.boat
TRANSVERSE.-.Across.the.vessel;.athwartships.
TRIM.-.Fore.and.aft.balance.of.a.boat.
TROUGH.-.1..The.valley.that.exists.between.waves...
2..A.trough.is.the.opposite.of.a.ridge.in.that.it.is.an.
elongated.low-pressure.area.extending.out.from.a.
low...A.trough.normally.indicates.unsettled.weather.
TUMBLE HOME - The opposite of flare. The shape .
of.the.hull.as.it.moves.outboard.going.down.from.the.
gunwale.to.the.waterline.or.chine.
UNDERWAY.-.Movement...Usually.referring.to.a.
vessel.proceeding.forward..
V-BOTTOM.-.A.hull.with.the.bottom.section.in.the.
shape of a "V."
V.DRIVE.-.A.drive.system.that.has.the.output.of.the.
engine.facing.forward.and.coupled.to.a.transmission...
The.prop.shaft.is.then.coupled.to.the.transmission.
WAKE.-.Moving.waves,.track.or.path.that.a.boat.
leaves.behind.it.when.moving.across.the.water.
Owner's Manual Page
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