background image

Usually, as the stern of the boat comes up,

the boat pitches forward which pitches the

masts forward and automatically increases the

spring force. A little patience will usually get

you on the foils.

Normally it is best to sail with light spring

pressure. The boat gets on the foils in as little

wind as possible and the sensors are as lightly

loaded as possible. When sailing solo, you

may see sensor rising. When sailing with a

passenger, you will routinely see sensor rising,

so use the above technique to get the boat on

the foils. When letting a novice sail the boat,

increase the spring force so they do not have

to worry about sensor rising.

The length of the shock can be adjusted sim-

ply by turning the shock while installed on the

boat.

If adjustments are made to the ride height of

the boat, theoretically, it will be necessary to

adjust the shocks.

Ride height of the stern

This is the most important part of tuning

the TriFoiler and maybe the trickiest.

The

TriFoiler will tolerate some divergence from the

ideal ride height, but the pilot should know

what is ideal and what the symptoms are from

riding too high or too low.

Remember that it is better to err on the side

of riding too low than too high. For the back of

the boat it is important that the stern of the

boat not ride up too high. It is very difficult for a

new pilot to judge how high the stern of the

boat is riding since you cannot see below the

main hull. 

One method of determining the height of the

stern is to stretch your arm over the side and

reach for the water. Of course this will depend

on how long your arm is, so calculate how far

you need to stretch to reach the water with the

stern 8" off the water. Sit in the boat when it is

on the trailer and put something on the ground

so it will be 8” below the bottom of the hull. If

you cannot reach the water, maybe you can

look over the side and estimate the distance

between the tip of your finger and the water.

The distance should not be measured from the

wave tops but from an average of the surface.

You also want to be careful at what speed

you measure the height of the stern. The stern

will rise up when you are going faster, so you

want to measure the height at a pretty good

speed. (I recommend about 26 mph). If this

does not work for you, you could simply start

with the stern very low and slowly raise it until

the stern just comes off the water when you

get up to speed.

The ride height is critical for several reasons.

The steering will feel very unusual when the

stern is too high because you will not have

enough rudder area in the water. If the rudder

is too high it is possible that it could ventilate

all the way down past the lowest fence and to

the horizontal foil. If the rudder does ventilate

all the way down to the horizontal foil, you will

lose a lot of directional stability and the stern

will drop down 6" or so.

It is important to keep in mind that the boat

works best at just the right height, which is just

off the water. The objective of the foils is not to

lift the boat to a specific height, but to lift the

boat just off the water. If the rudder comes up

too high, the leeway angle becomes too high.

If the speedometer stops working because the

Pitot tube comes out of the water, that is much

too high.

To change the ride height of the back of the

boat, turn the large black knob to the right or

clockwise to lower the boat, and to the left or

counterclockwise to raise the boat. One full

turn will change the ride height 1.5 inches.

19

Содержание TriFoiler

Страница 1: ...ASSEMBLY MANUAL...

Страница 2: ...TRY IT OUR WAY FIRST If you are new to sailing this manual alone is not intended to teach you how to sail There are many excellent books videos and courses on the safe handling of sailboats We sug ges...

Страница 3: ...iFoiler PAGE TriFoiler terminology 3 Assembly from the box 4 5 Knots to use 4 Rigging the boat 6 12 Trailer tie downs 6 Main beams 6 Bow wire 6 King post 6 Amas 7 Stepping the Masts 7 9 Compression st...

Страница 4: ...3 Basic TriFoiler Terminology MAST SENSOR ARM SENSOR FOIL MAIN HULL FORESTAY SAIL CLEW RUDDER FOIL SAIL BATTENS AMA SHOCK ABSORBER...

Страница 5: ...screwdriver to install the forestay plate One 5 16 Phillips head screw holds this plate on Please use sealant on this screw In the pouch in the rear compartment you will find Two drain plugs for the...

Страница 6: ...he casting and be care ful not to lose the two plastic shims Carefully Red Green and Blue lines lead back to the cockpit Grey line leads thru the beam Grey line ties to brass hook Blue line has black...

Страница 7: ...lines so that excess line is inside the beam Insert each beam into the center main beam Push the beams in until their stain less tabs are seated in the stop indents 3 3 3 3 Attach the bow wire Double...

Страница 8: ...There is a right and a left mast base Make sure that the foil retraction lines and the hal yard cleats are on the outward side of each mast NOTE For good mast rotation it is good to lubricate the mast...

Страница 9: ...strut to the port mast 8 8 8 Attach the port boom to the port mast Slide the plastic block on the front end of the port boom over the pin on the port mast Be sure that the curved por tion of the boom...

Страница 10: ...y onto the port mast Let the compression strut hang from the port mast and prepare the starboard mast NOTE The compression strut can be installed before or after the port mast goes up 14a Raise the st...

Страница 11: ...act the foils 18 Raise the foil and remove the cover Pull the blue line and cleat it into the jam cleat on the beam then cleat it into the cam cleat in the cockpit for safety Remove the cover NOTE You...

Страница 12: ...s of the luff curve and the sail will go right up While pushing up it is not necessary to feed the sail into the track If you do not push the sail up the sail will not feed in and it will jam 22 Lock...

Страница 13: ...er line Be sure that the stainless tabs on the booms are horizontal and not vertical before attaching the sail link If the booms are reversed con necting the sail link will damage it by prevent ing no...

Страница 14: ...e required to retract and deploy the foils Deploying the Foils To lock a foil down it is necessary that the foil being locked is on the leeward side of the boat If the foil is on the weather side of t...

Страница 15: ...ocked up position Replace the holding clip If the rudder hits something while moving with speed a shear pin should shear and the rudder will kick up The shear pin holds the bullet on the threaded shaf...

Страница 16: ...sail upwind with the foils retracted therefore it is necessary to sail in close with the sensors retracted and the foils down until you know the water is shallow enough to get out But not so deep that...

Страница 17: ...acing the panel make sure there is tension on the load straps 16 Skills the TriFoiler Pilot Should Have Getting out of Irons Irons the boat is pointed into the wind and cannot sail Since the TriFoiler...

Страница 18: ...they are well forward they will cause the boat to head up If all else fails pull the red lines and retract the sensors Just remember to release them as you pick up speed 4 The curve of the battens wi...

Страница 19: ...be used very effectively to steer the bow into the wind Use the sail link to steer the sails and keep the bow into the wind If the bow starts moving to the left push the sail link to the left and the...

Страница 20: ...the water with the stern 8 off the water Sit in the boat when it is on the trailer and put something on the ground so it will be 8 below the bottom of the hull If you cannot reach the water maybe you...

Страница 21: ...t The mea surement point on the amas bow is just under the flange where the sensor arm rests These four bolts should be checked occa sionally as the foil may get compressed and the bolts will become l...

Страница 22: ...e speed before sheeting in too tight Do not leave the beach until you are sure that the foils are locked down The boat will not head up unless at least one foil is locked down Do not leave the foil pa...

Страница 23: ...each Before sailing always check All control lines to ensure that they are not twisted and that they move freely and easily Adjustments of the bow sensor line All wires for broken strands Rudder and f...

Страница 24: ...E CAT 4925 Oceanside Blvd Oceanside CA 92056 Phone 760 758 9100 Fax 760 758 1841 email info hobieco com For your nearest HOBIE dealer or for help and information call 1 800 HOBIE 49 Revised 04 96 5345...

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