Difference between revisions of "Catamaran"
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this an outline of the training materials for using the catamaran at mit. | this an outline of the training materials for using the catamaran at mit. | ||
twin hulls versus monohull. weight of boat vs weight of crew. | twin hulls versus monohull. weight of boat vs weight of crew. | ||
| − | + | = Clothing = | |
gloves. booties. harness (hook or ball). life jacket. wetsuit. | gloves. booties. harness (hook or ball). life jacket. wetsuit. | ||
| − | + | = Rigging = | |
putting the boat in the water. docking line. tying up to the dock in various wind directions. daggerboards. how to adjust the trapeze lengths. how to raise and secure the main sail. halyard shackle in small slot. outhaul. barber haulers. mast rotator. jib furler. rudder cams. main traveler. jib traveler. slight wrinkles in jib. | putting the boat in the water. docking line. tying up to the dock in various wind directions. daggerboards. how to adjust the trapeze lengths. how to raise and secure the main sail. halyard shackle in small slot. outhaul. barber haulers. mast rotator. jib furler. rudder cams. main traveler. jib traveler. slight wrinkles in jib. | ||
| − | + | = De-Rigging = | |
docking line. daggerboards. furl jib. release main sail. roll main sail. shackles stay on boat. rudders up. rudder cams up. pulling the boat out of the water. drain hulls of any water. tie off main halyard to main traveler. | docking line. daggerboards. furl jib. release main sail. roll main sail. shackles stay on boat. rudders up. rudder cams up. pulling the boat out of the water. drain hulls of any water. tie off main halyard to main traveler. | ||
| − | + | = Sailing = | |
weight matters. fore-aft depending on wind strength. | weight matters. fore-aft depending on wind strength. | ||
| − | + | == Tacking == | |
roll tack as much as possible. back with jib if necessary. ease main sheet through the tack, tighten once wind is on other side of sails. | roll tack as much as possible. back with jib if necessary. ease main sheet through the tack, tighten once wind is on other side of sails. | ||
| − | + | == Gybing == | |
do not throw crew off the boat. | do not throw crew off the boat. | ||
| − | + | == Reaching == | |
use the barber hauler. mast rotator should be loose. pull daggerboards for more speed. ease downhaul if appropriate. | use the barber hauler. mast rotator should be loose. pull daggerboards for more speed. ease downhaul if appropriate. | ||
| − | + | == Beating == | |
tight mast rotator. keep bows in water, but not too far. do not over-tighten jib. tighten downhaul if appropriate. | tight mast rotator. keep bows in water, but not too far. do not over-tighten jib. tighten downhaul if appropriate. | ||
| − | + | == Hiking and Trapping == | |
use hiking straps when not enough wind for trapeze. to go out on the wire, pull trap to you, slide back off the boat until trap takes your weight, get legs under you. keep legs shoulder width or more apart. balance fore-aft just as important as in-out. pull on handle to come in. ensure that trap length is appropriate for body geometry and wind conditions. skipper out to the wire first, then crew. crew moves more in variable air. skipper and crew intertwined to reduce drag. | use hiking straps when not enough wind for trapeze. to go out on the wire, pull trap to you, slide back off the boat until trap takes your weight, get legs under you. keep legs shoulder width or more apart. balance fore-aft just as important as in-out. pull on handle to come in. ensure that trap length is appropriate for body geometry and wind conditions. skipper out to the wire first, then crew. crew moves more in variable air. skipper and crew intertwined to reduce drag. | ||
| − | + | == Capsizing and Righting == | |
do not fall/jump onto the mainsail. do not fall/jump onto the jib. do not stand on daggerboards. get righting line over top of hull as soon as possible to avoid turtling. need 250 pounds or more to right the boat. ease main sheet but do not release sheet or traveler. jib sheet should be tight. rotate boat so mast just about into wind, with wind coming under mast. grab dolphin striker as boat rights. how to avoid pitchpoling. when easing the main still results in capsizing. heading up too fast results in capsize. puffs when already at 40 degrees or more. | do not fall/jump onto the mainsail. do not fall/jump onto the jib. do not stand on daggerboards. get righting line over top of hull as soon as possible to avoid turtling. need 250 pounds or more to right the boat. ease main sheet but do not release sheet or traveler. jib sheet should be tight. rotate boat so mast just about into wind, with wind coming under mast. grab dolphin striker as boat rights. how to avoid pitchpoling. when easing the main still results in capsizing. heading up too fast results in capsize. puffs when already at 40 degrees or more. | ||
| − | + | = Parts of the Boat = | |
these are the boat parts and what they are used for: | these are the boat parts and what they are used for: | ||
Revision as of 07:59, 14 August 2009
this an outline of the training materials for using the catamaran at mit.
twin hulls versus monohull. weight of boat vs weight of crew.
Contents
Clothing
gloves. booties. harness (hook or ball). life jacket. wetsuit.
Rigging
putting the boat in the water. docking line. tying up to the dock in various wind directions. daggerboards. how to adjust the trapeze lengths. how to raise and secure the main sail. halyard shackle in small slot. outhaul. barber haulers. mast rotator. jib furler. rudder cams. main traveler. jib traveler. slight wrinkles in jib.
De-Rigging
docking line. daggerboards. furl jib. release main sail. roll main sail. shackles stay on boat. rudders up. rudder cams up. pulling the boat out of the water. drain hulls of any water. tie off main halyard to main traveler.
Sailing
weight matters. fore-aft depending on wind strength.
Tacking
roll tack as much as possible. back with jib if necessary. ease main sheet through the tack, tighten once wind is on other side of sails.
Gybing
do not throw crew off the boat.
Reaching
use the barber hauler. mast rotator should be loose. pull daggerboards for more speed. ease downhaul if appropriate.
Beating
tight mast rotator. keep bows in water, but not too far. do not over-tighten jib. tighten downhaul if appropriate.
Hiking and Trapping
use hiking straps when not enough wind for trapeze. to go out on the wire, pull trap to you, slide back off the boat until trap takes your weight, get legs under you. keep legs shoulder width or more apart. balance fore-aft just as important as in-out. pull on handle to come in. ensure that trap length is appropriate for body geometry and wind conditions. skipper out to the wire first, then crew. crew moves more in variable air. skipper and crew intertwined to reduce drag.
Capsizing and Righting
do not fall/jump onto the mainsail. do not fall/jump onto the jib. do not stand on daggerboards. get righting line over top of hull as soon as possible to avoid turtling. need 250 pounds or more to right the boat. ease main sheet but do not release sheet or traveler. jib sheet should be tight. rotate boat so mast just about into wind, with wind coming under mast. grab dolphin striker as boat rights. how to avoid pitchpoling. when easing the main still results in capsizing. heading up too fast results in capsize. puffs when already at 40 degrees or more.
Parts of the Boat
these are the boat parts and what they are used for:
- mast
- spreaders
- trampoline
- hulls
- bridle
- forestay
- main sail
- main sheet
- main traveler
- downhaul
- outhaul
- mast rotator
- jib
- jib sheet
- jib traveler
- jib furler
- jib halyard
- jib sheet preventers (blue bungie, use of furling line)
- barber hauler
- trapeze handles
- trapeze retractors - skipper
- trapeze retractors - crew
- righting line
- righting line retractor
- daggerboards
- rudders (up, down)
- rudder cams
- drain plugs
- inspection portals
- storage pouch
