B ow : Front of a vessel
Cleat: Metal fitting on which a rope can be fastened
Gunw ale: Upper edge of vessel’s side (generally pronounced "gunnel")
Hull: Body of a vessel
Por t: Left side of a vessel
Pr opeller : Rotates and powers a boat forward or backward
Star boar d: Right side of a vessel
Ster n: Rear of a vessel
B eam : Maximum width of a vessel
Dr aft: Depth of water needed to float a vessel
Fr eeboar d: Distance from water to lowest point of the boat where water
could come on board
K eel: Main centerline (backbone) of a vessel or the extension of hull that
increases stability in the water
Hull: Body of a vessel; basic structure or shell
Per sonal w ater cr aft: A small vessel that uses an inboard jet drive as its
primary source of propulsion and is designed to be operated by a person or
,persons sitting, standing, or kneeling on the vessel rather than inside the
vessel
Displacem ent Mode: A planing hull, when operated at very slow speeds,
will cut through the water like a displacement hull.
Plow ing Mode: As speed increases, a planing hull will have a raised bow,
reducing the operator’s vision and throwing a very large wake. Avoid
maintaining a speed that puts your boat in plowing mode.
Planing Mode: Your boat is in planing mode when enough power is applied
so that the hull glides on top of the water. Different boats reach planing mode
at different speeds.
B ow : Front of a vessel
length over all: Length of the hull excluding any attachments
Rudder : Steering device, usually a vertical blade attached to a post at, or
near, the stern of the boat
Ster n: Rear of a vessel
Pr opeller : Rotating device that turns and powers a boat forward or backward
Tiller : Lever used to turn a rudder to steer a boat
Tr ansom : Vertical surface at the back of the hull
,Im peller : Device used to pump and force water under pressure through a
steering nozzle at the rear of the vessel
Intake: Opening in the hull that draws water toward the impeller
intake gr ate: Screening cover over the intake, which prevents large debris
from entering
Por t: Left side of a vessel
safety lanyar d: Short cord for attaching the engine cut-off switch (ECOS) to
the operator's wrist or personal flotation device (PFD)
Star boar d: Right side of a vessel
steer ing contr ol: Means of controlling the steering nozzle
B ow : Front of a vessel
Dr aft: Depth of water needed to float a vessel
dr ive shaft: The long stem connection between the motor and the impeller
steer ing nozzle: Device used for directing the stream of water to the left or
right at the stern of the PWC, which steers the PWC
Ster n: Rear of a vessel
Halyar ds: Lines (ropes) used to raise and lower the sails
, Sheets: Lines (ropes) used to control the angle of the sails to the wind
Capsize: To turn on the side or turn completely over
Sw am p: To fill with water
B ilge: Interior of the hull below the floorboards; lowest part of a vessel’s
interior where the sides of the vessel curve in to form the bottom
Coupler : The part of the trailer that attaches to the ball hitch on a towing
vehicle
Bunks: Wooden supports on which the vessel rests while on the trailer
LESSONS:
Boats with displacem ent hulls move through the water by pushing the
water aside and are designed to cut through the water with very little
propulsion.
● If you lower a boat into the water, some of the water moves out of the
way to adjust for the boat. If you could weigh that displaced water, you
would find it equals the weight of the boat. That weight is the boat’s
displacement.
● Boats with displacement hulls are limited to slower speeds.
Cleat: Metal fitting on which a rope can be fastened
Gunw ale: Upper edge of vessel’s side (generally pronounced "gunnel")
Hull: Body of a vessel
Por t: Left side of a vessel
Pr opeller : Rotates and powers a boat forward or backward
Star boar d: Right side of a vessel
Ster n: Rear of a vessel
B eam : Maximum width of a vessel
Dr aft: Depth of water needed to float a vessel
Fr eeboar d: Distance from water to lowest point of the boat where water
could come on board
K eel: Main centerline (backbone) of a vessel or the extension of hull that
increases stability in the water
Hull: Body of a vessel; basic structure or shell
Per sonal w ater cr aft: A small vessel that uses an inboard jet drive as its
primary source of propulsion and is designed to be operated by a person or
,persons sitting, standing, or kneeling on the vessel rather than inside the
vessel
Displacem ent Mode: A planing hull, when operated at very slow speeds,
will cut through the water like a displacement hull.
Plow ing Mode: As speed increases, a planing hull will have a raised bow,
reducing the operator’s vision and throwing a very large wake. Avoid
maintaining a speed that puts your boat in plowing mode.
Planing Mode: Your boat is in planing mode when enough power is applied
so that the hull glides on top of the water. Different boats reach planing mode
at different speeds.
B ow : Front of a vessel
length over all: Length of the hull excluding any attachments
Rudder : Steering device, usually a vertical blade attached to a post at, or
near, the stern of the boat
Ster n: Rear of a vessel
Pr opeller : Rotating device that turns and powers a boat forward or backward
Tiller : Lever used to turn a rudder to steer a boat
Tr ansom : Vertical surface at the back of the hull
,Im peller : Device used to pump and force water under pressure through a
steering nozzle at the rear of the vessel
Intake: Opening in the hull that draws water toward the impeller
intake gr ate: Screening cover over the intake, which prevents large debris
from entering
Por t: Left side of a vessel
safety lanyar d: Short cord for attaching the engine cut-off switch (ECOS) to
the operator's wrist or personal flotation device (PFD)
Star boar d: Right side of a vessel
steer ing contr ol: Means of controlling the steering nozzle
B ow : Front of a vessel
Dr aft: Depth of water needed to float a vessel
dr ive shaft: The long stem connection between the motor and the impeller
steer ing nozzle: Device used for directing the stream of water to the left or
right at the stern of the PWC, which steers the PWC
Ster n: Rear of a vessel
Halyar ds: Lines (ropes) used to raise and lower the sails
, Sheets: Lines (ropes) used to control the angle of the sails to the wind
Capsize: To turn on the side or turn completely over
Sw am p: To fill with water
B ilge: Interior of the hull below the floorboards; lowest part of a vessel’s
interior where the sides of the vessel curve in to form the bottom
Coupler : The part of the trailer that attaches to the ball hitch on a towing
vehicle
Bunks: Wooden supports on which the vessel rests while on the trailer
LESSONS:
Boats with displacem ent hulls move through the water by pushing the
water aside and are designed to cut through the water with very little
propulsion.
● If you lower a boat into the water, some of the water moves out of the
way to adjust for the boat. If you could weigh that displaced water, you
would find it equals the weight of the boat. That weight is the boat’s
displacement.
● Boats with displacement hulls are limited to slower speeds.
