Docking Clinic ASA 118 Exam with verified detailed solutions|| || || || || || || ||
What are the 4 forces affecting docking? - ✔✔1. Prop Wash
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2. Prop Wash
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3. Wind ||
4. Current||
How does Prop Walk affect boat speed and orientation? - ✔✔In reverse gear Prop
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Walk moves the stern to the LEFT (for right handed propeller). More speed reverse,
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more the stern turns left.|| || || ||
How does Wind affect boat speed and orientation? - ✔✔In a cross wind the bow turns
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downwind faster then the stern. Cross wind blows bow downwind.
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How does Current affect boat speed and orientation? - ✔✔Cross current sets ENTIRE
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boat down current. || ||
Backing out of slip what to consider? - ✔✔Wind direction
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Considerations and Procedure Backing out of slip with wind from ahead and cross? || || || || || || || || || || || || ||
(Blowing straight out of slip or cross wind) - ✔✔- Consider that wind threatens to
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blow bow into piling as you turn while backing out
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- Use a doubled over midship spring line on the lee side to turn/pivot the boat while
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backing out ||
- or alternatively use a doubled-over bow line windwards to control the bow
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, Consideration and Procedure Backing out of slip with wind from astern and cross? || || || || || || || || || || || || ||
(Wind blows into the slip) - ✔✔- This is called turning to windward: consider that
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cross wind blowing into the fairway or wind blow into the slip may may prevent boat
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while turning to clear the end piling
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- back away as far as possible before going into forward gear
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Heading bow first out of a slip with wind from across - wind blowing against intended
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exit direction- heading out with opposing wind? - ✔✔Consider: Turning into fairway
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will be harder. Wind pushes bow against opposite docks.
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Use a midship spring line windward to help turn the boat sooner (pivot) to avoid
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striking the slips across the fairway. || || || || ||
Parallel undocking when easy and when harder? - ✔✔Windward dock easy, lee dock
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hard. Also, boats in front or aft can make it harder.
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Parallel docking departure with wind blowing away from the dock - procedure? -
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✔✔Release lines and let wind blow you away from dock while gently engage and
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disengage engine ||
Parallel docking departure from lee, wind blowing onto the dock-procedure? - ✔✔-
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Stern out preferable over bow out
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- Springing stern off dock by turning rudder slightly towards dock (prop wash helps)
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and power stern away while using doubled over spring line at the bow and a handheld
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fender at the bow
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- Springing bow off dock by powering (forward) away from the dock in reverse gear
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while doubled over spring line at the stern pivots boat. Use a manual fender stern to
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protect boat. Rudder is ineffective here. When boat turned away from dock, then turn
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rudder away from dock and power forward.
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What are the 4 forces affecting docking? - ✔✔1. Prop Wash
|| || || || || || || || || ||
2. Prop Wash
|| ||
3. Wind ||
4. Current||
How does Prop Walk affect boat speed and orientation? - ✔✔In reverse gear Prop
|| || || || || || || || || || || || || ||
Walk moves the stern to the LEFT (for right handed propeller). More speed reverse,
|| || || || || || || || || || || || || ||
more the stern turns left.|| || || ||
How does Wind affect boat speed and orientation? - ✔✔In a cross wind the bow turns
|| || || || || || || || || || || || || || ||
downwind faster then the stern. Cross wind blows bow downwind.
|| || || || || || || || || ||
How does Current affect boat speed and orientation? - ✔✔Cross current sets ENTIRE
|| || || || || || || || || || || || ||
boat down current. || ||
Backing out of slip what to consider? - ✔✔Wind direction
|| || || || || || || || ||
Considerations and Procedure Backing out of slip with wind from ahead and cross? || || || || || || || || || || || || ||
(Blowing straight out of slip or cross wind) - ✔✔- Consider that wind threatens to
|| || || || || || || || || || || || || || ||
blow bow into piling as you turn while backing out
|| || || || || || || || ||
- Use a doubled over midship spring line on the lee side to turn/pivot the boat while
|| || || || || || || || || || || || || || || || ||
backing out ||
- or alternatively use a doubled-over bow line windwards to control the bow
|| || || || || || || || || || || ||
, Consideration and Procedure Backing out of slip with wind from astern and cross? || || || || || || || || || || || || ||
(Wind blows into the slip) - ✔✔- This is called turning to windward: consider that
|| || || || || || || || || || || || || || ||
cross wind blowing into the fairway or wind blow into the slip may may prevent boat
|| || || || || || || || || || || || || || || ||
while turning to clear the end piling
|| || || || || ||
- back away as far as possible before going into forward gear
|| || || || || || || || || || ||
Heading bow first out of a slip with wind from across - wind blowing against intended
|| || || || || || || || || || || || || || || ||
exit direction- heading out with opposing wind? - ✔✔Consider: Turning into fairway
|| || || || || || || || || || || ||
will be harder. Wind pushes bow against opposite docks.
|| || || || || || || ||
Use a midship spring line windward to help turn the boat sooner (pivot) to avoid
|| || || || || || || || || || || || || || ||
striking the slips across the fairway. || || || || ||
Parallel undocking when easy and when harder? - ✔✔Windward dock easy, lee dock
|| || || || || || || || || || || || ||
hard. Also, boats in front or aft can make it harder.
|| || || || || || || || || ||
Parallel docking departure with wind blowing away from the dock - procedure? -
|| || || || || || || || || || || || ||
✔✔Release lines and let wind blow you away from dock while gently engage and
|| || || || || || || || || || || || || ||
disengage engine ||
Parallel docking departure from lee, wind blowing onto the dock-procedure? - ✔✔-
|| || || || || || || || || || || ||
Stern out preferable over bow out
|| || || || ||
- Springing stern off dock by turning rudder slightly towards dock (prop wash helps)
|| || || || || || || || || || || || || ||
and power stern away while using doubled over spring line at the bow and a handheld
|| || || || || || || || || || || || || || ||
fender at the bow
|| || || ||
- Springing bow off dock by powering (forward) away from the dock in reverse gear
|| || || || || || || || || || || || || || ||
while doubled over spring line at the stern pivots boat. Use a manual fender stern to
|| || || || || || || || || || || || || || || ||
protect boat. Rudder is ineffective here. When boat turned away from dock, then turn
|| || || || || || || || || || || || || ||
rudder away from dock and power forward.
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