Sailing, Under Power, Seamanship

Question 1

The catamaran’s fully-battened mainsail is very heavy; hoisting is made easier by using halyard with a ___ ___ .

Answer 1

2:1 purchase

Question 2

When sailing to windward, the profile of a catamaran creates ___ that slows boat speed. Combined with its increased ___ due to the shoal-draft keels, this requires a catamaran to sail at ___ angles and ___ boat speeds than a monohull to achieve good windward VMG.

Answer 2

windage, leeway, wider, faster

Question 3

When trimming the mainsail for best close-hauled performance, it is best to center the boom with the ___ and then use the ___ to trim the sail for optimum twist.

Answer 3

traveler, mainsheet

Question 4

Due to its large mainsail, the catamaran is susceptible to weather-vaning if boat speed is too low when ___. If the boat stalls, the jib may be ___ to assist the turn.

Answer 4

tacking, backed

Question 5

The key to effective tacking is to have best possible boat speed, be close-hauled, turn the wheel ___, ease the traveler a little and quickly trim the ___ on the new side. Building ___ is important before trimming the ___ onto the new close-hauled course.

Answer 5

steadily, jib, speed, mainsail

Question 6

The catamaran’s faster ___ ___ exaggerates the ___ wind speed and angle, which affect how a catamaran sailor should steer and trim.

Answer 6

boat speed, apparent

Question 7

When sailing to windward, daggerboards should be ___ to reduce leeway. When sailing downwind, daggerboards should be ___ to reduce drag and turbulence.

Answer 7

lowered, retracted (raised)

Question 8

When sailing downwind, find your course for best downwind VMG by sailing a ___ course and noting boat speed and apparent wind speed on different headings.

Answer 8

slalom

Question 9

When jibing a catamaran, it’s important to jib ___ and use the traveler and mainsheet to control the large ___ .

Answer 9

slowly, mainsail

Question 10

A lack of heeling and reduced weather helm reduce the sensory cues that indicate when to reef. Consult the manufacturer’s charts that recommend the ___ ___ at which to reef. ___ state and approaching squalls should also be factored into the skipper’s decision.

Answer 10

wind speeds, sea

Question 11

To maintain better control when sailing in gusty conditions, ___ ___ in gusts when sailing to windward, and ___ ___ when sailing downwind.

Answer 11

head up, bear away

Question 12

The large size of the catamaran, which can cause difficulties when docking or maneuvering under power, is greatly overcome by the use of its ___ screws.

Answer 12

twin

Question 13

Slow-speed maneuvering is enhanced by using ___ power and direction of thrust, which moves the pivot point toward the ___ with the least thrust.

Answer 13

differential, hull

Question 14

Care must be taken when slow-speed maneuvering under power in windy conditions due to the shoal ___ and the ___ of the high freeboard and large deckhouse.

Answer 14

keels, windage

Question 15

Motorsailing with one engine saves ___ but affects the balance of the boat.

Answer 15

fuel

Question 16

Rudders become ineffective at low speeds. Therefore, when docking a catamaran, center the ___ and maneuver the boat with the two ___ .

Answer 16

wheel, engines

Question 17

Name four of the steps involved to safely hoist and secure a dinghy in davits: ___ , ___ , ___ , ___ .

Answer 17

close the fuel tank vent, remove loose gear, position dinghy under davits, lower hoisting lines, attach shackles to lifting points, remove drain plug, exit dinghy, raise bow and stern simultaneously, cleat off the tackle, secure with bow and stern lines, check for chafe points

Question 18

Dinghy boarding is conveniently done at the ___, which offers a low step to embark. Remember to maintain three ___ ___ ___ at all times.

Answer 18

transom, points of contact

Question 19

When picking up a mooring buoy, prepare the ___ lines in advance and approach directly ___ or into the current, aiming to pick up the mooring buoy just inside the bow.

Answer 19

bridle, upwind

Question 20

Anchoring or picking up a mooring buoy goes far more smoothly if the person at the bow uses a set of agreed ___ ___ to communicate with the helm.

Answer 20

hand signals

Question 21

The purpose of the ___ is to keep an anchor or mooring ball centered between the two hulls.

Answer 21

bridle

Question 22

Name four features of catamaran structure and performance that affect Man Overboard recovery. ___ ___ ___ ___

Answer 22

higher speeds, lack of windward performance, pronounced leeway, helm visibility, high freeboard, propellors close to surface

Question 23

The key to avoiding a Man Overboard situation is to keep the crew safely on board by rigging ___ and using ___ .

Answer 23

jacklines, tethers

Question 24

One of the primary causes of catamaran capsize is being ___ because of having too much sail.

Answer 24

overpowered

Question 25

List five post-capsize response procedures. ___ ___ ___ ___ ___

Answer 25

make a head count, check for injuries, secure crew to inverted boat, secure ditch bag and life raft, salvage whatever you can, send distress signals