Review Questions 3 Flashcards
The catamaran’s fully-battened mainsail is very heavy; hoisting is made easier by using a halyard with a _____ _____.
2:1 purchase
When sailing to windward, the high 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.
windage; leeway; wider; faster
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.
traveler; mainsheet
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.
tacking; backed
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.
steadily; jib; speed; mainsail
The catamaran’s faster _____ _____ exaggerates the _____ wind speed and angle, which affect how a catamaran sailor should steer and trim.
boat speed; apparent
When sailing to windward, daggerboards should be _____ to reduce leeway. When sailing downwind, daggerboards should be _____· to reduce drag and turbulence.
lowered; retracted (raised)
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.
slalom
When jibing a catamaran, it’s important to jibe _____ and use the traveler and mainsheet to control the large _____.
slowly; mainsail
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.
wind speeds; sea
To maintain better control when sailing in gusty conditions, _____ _____ in gusts when sailing to windward, and _____ _____ when sailing downwind.
head up; bear away
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.
twin
Slow-speed maneuvering is enhanced by using _____ power and direction of thrust, which moves the pivot point toward the _____ with the least thrust.
differential; hull
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.
keels; windage
Motorsailing with one engine saves _____ but affects the balance of the boat.
fuel
Rudders become ineffective at low speeds. Therefore, when docking a catamaran, center the _____ and maneuver the boat with the two _____.
wheel; engines
Name four of the steps involved to safely hoist and secure a dinghy in davits:
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
Dinghy boarding is conveniently done at the _____, which offers a low step to embark. Remember to maintain three _____ _____ _____ at all times.
transom; points of contact
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.
bridle; upwind
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.
hand signals
The purpose of the _____ is to keep an anchor or mooring ball centered between the two hulls.
bridle
Name four features of catamaran structure and performance that affect Man Overboard recovery:
higher speeds, lack of windward
performance, pronounced leeway,
helm visibility, high freeboard,
propellers close to surface
The key to avoiding a Man Overboard situation is to keep the crew safely on board by rigging _____ and using _____.
jacklines; tethers
One of the primary causes of catamaran capsize is being _____ because of having too much sail set.
overpowered
List five post-capsize response procedures:
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
