Performance Cruising Gemini 105Mc Owner's Manual

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Gemini 105Mc

Owner's Manual

Boat Name:

Hull Number:

Owner:

Address:

Sail Number:

Engine Number:

Registration Number:

Documentation Number:

Manual Version: 2.5

Publication Date: 3/4/2005

7364 Edgewood Road Annapolis Maryland 21403

Phone 410.626.2720

www.performancecruising.com

Owner InfoCenter: www.performancecruising.com

info@performancecruising.com

Table of Contents

Summary of Contents for Performance Cruising Gemini 105Mc

Page 1 Gemini 105Mc Owner’s Manual Boat Name: Hull Number: Owner: Address: Sail Number: Engine Number: Registration Number: Documentation Number: Manual Version: 2.5 Publication Date: 3/4/2005 7364 Edgewood Road Annapolis Maryland 21403 Phone 410.626.2720 www.performancecruising.com Owner InfoCenter: www.performancecruising.com info@performancecruising.com...
Page 2 This manual covers the proper operation and maintenance of all the aspects and systems aboard the Gemini 105Mc. If a particular topic isn’t covered in enough detail, let us know via e-mail. We regularly update the manual and make new versions available through the Performance Cruising Owner InfoCenter website (http://www.mypci.net).
Page 3: Table Of Contents
AM/FM Stereo Cabin Lights Hauling and Trucking Bulbs Mast Wires Winterizing Mast Wiring Diagram Mast and Rigging Operational Checklists Bridge Clearance Rig Tensioning Contact Information Boom Addendums Westerbeke 30B Quick Notes Bottom Paint FAQ Copyright © 2004 Performance Cruising Inc.
Page 4: Quick Start
Anchor Light To lower the sonic drive leg turn the red stopcock Instruments lever in the starboard cockpit locker inline with the Fans hydraulic line and then loosen the black valve on the Shower Pump Copyright © 2004 Performance Cruising Inc.
Page 5: Shore Power
Be sure to turn on the “Refrigerator” volt panel. switch on the 12v panel. There is a foot pump in the galley to manually pump water from the selected tank if the pressure water The refrigerator operates automatically when con- Copyright © 2004 Performance Cruising Inc.
Page 7: Rudders
Full Main and full genoa Up to 18 knots Full Main and jib or reefed genoas 22 knots 1st reef in main and jib 26 knots 1st reef in main and storm jib 30 knots Copyright © 2004 Performance Cruising Inc.
Page 8: Plumbing, Head, And Fresh Water
Reverse the procedure to enable the pump. from the 110 volt electric water heater. Hot water travels out of the heater to a “T” connector which Copyright © 2004 Performance Cruising Inc.
Page 9: Shower/Sump
Combination Shower Pump / Bilge Pump System ter either overboard or into the holding tank. (The long end of the handle points to the hose in use; i.e. Your new Gemini 105Mc comes with an upgraded Copyright © 2004 Performance Cruising Inc.
Page 10: Cockpit Shower
The water hoses used are reinforced plastic, suit- able for drinking water and to take hot water. The hoses are secured with clamps to the various attachments. These clamps may need tightening periodically, particularly if the boat was built in the Copyright © 2004 Performance Cruising Inc.
Page 11: System Overview
Turning the lever upright (inline with the hose) opens the seacock. Turning the lever down closes the seacock. Waste Water Selector Valves: Controls the destina- tion of toilet water discharge. See photos and explanation on previous page for possible configu- rations. Copyright © 2004 Performance Cruising Inc.
Page 12: Propane
“on” lever in line with the pipe that is bypassing the sole- position, the cut out system stops the propane from noid. flowing to the appliance. Copyright © 2004 Performance Cruising Inc.
Page 13: Copper And Fittings
On the initial start-up, after switching propane bot- flame up. To turn the flame down or off, turn the tles, or if the refrigerator has not been used in a knob clockwise. Copyright © 2004 Performance Cruising Inc.
Page 14: Refrigerator On 110V
Always keep the venti- lation hatch open and turn the 12-volt refrigerator fan on when the refrigerator is running. When leaving the boat for long periods of time, re- insert the refrigerator air intake hatch cover. Copyright © 2004 Performance Cruising Inc.
Page 15: Shore Power
Before connecting the shore power cord, always turn the AC circuit breaker “Off.” Once connected, switch the breaker “On.” Similarly, always remem- ber to turn “Off” the AC circuit breaker before dis- connecting the shore power cable. Copyright © 2004 Performance Cruising Inc.
Page 16: Air Conditioning
110v extension line to plug in to. Unplug the water pump from the air conditioner and connect to the extension line to prime the lines. Once the system is primed, return the pump plug to the air condi- Copyright © 2004 Performance Cruising Inc.
Page 17: 12 Volt Power
The problem with this system, as discussed the electrolyte is filled to the indicator line on the earlier, is that it is easier to charge a flat battery battery case (which covers the plates). If the bat- Copyright © 2004 Performance Cruising Inc.
Page 19: Wiring Code
Wiring Code Stereo AM/FM/CD The standard code for 12-volt is red positive and The Gemini 105Mc now comes standard with an black negative. Unfortunately the boat cable sup- AM/FM stereo CD player with two speakers mounted plied sometimes comes red and black and some- on the main bulkhead.
Page 20: Mast Wires
3. Brown and blue from the deck light. Brown is positive and blue is negative. The wires from the Autohelm wind are connected to the instruments through the connecting block. Copyright © 2004 Performance Cruising Inc.
Page 22: Mast And Rigging
Mast and Rigging each stay. Following initial tightening, the following The Gemini 105Mc mast is 39’ off the deck and the details, in order, the tensioning on each of the stays. bridge clearance is 46’...
Page 23: Boom
With the Gemini 105Mc the mast is raised 1’, in- cludes a 1’ crane on the top, and the boom is ex- tended 1’ compared to older Gemini models. (The older masts were 38’...
Page 24: Engine
Fuel Tanks / Gauges linked to a sonic outdrive leg and provides excellent fuel economy and battery charging from the 55-amp The Gemini 105Mc has (2) two 18 gallon fuel tanks, each located either side of the engine under the aft alternator.
Page 25 15” Diameter / 11” Pitch 3. If the boat is still moving forward as the leg is 17 Spline Drive lowered, it likely will not lock into position as 3 Blade Aluminum— Left Hand Copyright © 2004 Performance Cruising Inc.
Page 26: Centerboards And Rudders
The Gemini 105Mc has asymmetric foam cored fi- The direction of rotation is such that if the center- berglass centerboards as opposed to the older board was down and it struck bottom it would push up wooden boards.
Page 28: Performance And Use
14 knots, which is also putting stress on the rudders to stick and not kick up quick enough if the rudders. Lowering the leeward centerboards part rudder touches bottom. way reduces the top speed perhaps to 12 knots but Copyright © 2004 Performance Cruising Inc.
Page 30: Construction
Back- of ¼" of the hulls does not damage the door jamb of ing plates are academic because a failure would the main bulkhead. almost certainly be a large chunk of deck being Copyright © 2004 Performance Cruising Inc.
Page 31: Constructions Differences
Cheap low aspect ratio keels could be bolted on reducing the cost of centerboards and cases. Cheaper fixed rudders could be used. But those are compromises we are not will- ing to make. Copyright © 2004 Performance Cruising Inc.
Page 32: Design Considerations
Interior Molds Leaks The Gemini 105Mc advanced construction includes a If a leak is detected, first taste the water to see if it single interior mold encompassing the area from is salty. If it is fresh, the leak is either water from stem to stern and port to starboard.
Page 33: Sails And Sailing
The batten should be made tight enough so that there are no vertical wrinkles across the bat- The Gemini 105Mc uses the masthead rig. The mast- tened area of the sail. To remove the batten from head rig is the strongest because of the amount of the sail, the adjustment screw must be completely shrouds that support the mast.
Page 34: Spinnaker S
Genoa, and has one set of sheets. Screacher Sail The optional screacher sail (Dimension Dacron cloth weight 4 oz) is a 420 square foot roller drifter (200%) fitted in front of the genoa. The sail is designed Copyright © 2004 Performance Cruising Inc.
Page 35: Heavy Weather
This position will change in different wind motion with the boat rocking towards the wave. As strengths. In lighter winds the slider is further aft the pulsation of the wave moves on the hull, it is Copyright © 2004 Performance Cruising Inc.
Page 36: Offshore Cruising
In well off as the centerboard catamaran with the fact, the Gemini 105Mc is CE certified for trans- centerboard up. However, because the fixed, low ocean use. However, Gemini is not built specifically aspect ratio keel does not work, this type of cata- for offshore racing or around the world cruising.
Page 37: Notes On Sailing A New Boat
Regarding the break-in period associated with the engine and drive leg; Sillette-Sonic Marine suggests running the engine up to about 1/2 the engine RPM for the first 20 hours of operation. This equates to 1500 RPM on the Westerbeke diesel. Copyright © 2004 Performance Cruising Inc.
Page 38: Coast Guard Kit
Gemini is delivered with a Danforth anchor, fenders, moor- cruising: ing lines, and a compass. As most sailors already have some boat gear, Performance Cruising does not provide a Coast Guard kit. The recommended items for minimal use are Radar Reflector listed below.
Page 39: Anchoring
Anchoring Anchoring Setting the Anchor The Gemini 105Mc is outfitted with a 22lb Danforth The standard boat comes with a short length of chain anchor supplying 1600lb of holding power. There is and 100' of 1/2" nylon rope. This is adequate for nor- a stowing anchor roller through the bowsprit and an mal anchoring in sand or mud.
Page 42: Sea Anchors
Keep acetone away from vi- no grounding on the next metal part, the lightning nyl, paint, and the windows. Older gelcoat may de- will go through the hull to the water. Grounded Copyright © 2004 Performance Cruising Inc.
Page 43: Maintenance
The boat can the same manner as the hulls. then be bottom painted. These blisters are almost certainly not structural and can be easily fixed. We highly recommend keeping up with scheduled bottom cleaning and painting. Copyright © 2004 Performance Cruising Inc.
Page 44: Teak Cleaning
Mat varnish is another possible treatment for the teak. This is a time consuming process as all the teak has to be masked and the surface must be sanded between coats. At least 3 coats must be Copyright © 2004 Performance Cruising Inc.
Page 45: Hauling And Trucking
-inline inline with the bulkhead with the forward bulk- directly in front of the head. water tanks. 1” thick plywood running 16’ for and aft Copyright © 2004 Performance Cruising Inc.
Page 46: Winterizing
Winterizing the air conditioner is much the same as win- terizing the engine. Instructions are the same as those covered in the Air Conditioning section of the manual— with the exception of drawing from a 50/50 mixture of water and engine coolant. Copyright © 2004 Performance Cruising Inc.
Page 47: Operational Checklists
A second person onboard should be capable of operating the boat, including the drive leg, en- gine, and radio. Remove leeward dock lines and then windward dock lines before leaving the slip. Copyright © 2004 Performance Cruising Inc.
Page 48: Contact Information
Updated solar panel information for new panel and configuration. Updated battery section with informa- tion on checking battery levels. Updated Sillette propeller specifications. Added bottom paint FAQ addendum. Cor- rected mast stay measurements. Copyright © 2004 Performance Cruising Inc.
Page 49 – fill the end with silicone and allow to cure which seals off the plug from the marine environment. Consider replacing every two years. A4/316 stainless plugs are available, but remember they are less durable and react more with the aluminum skeg casing. Copyright © 2004 Performance Cruising Inc.
Page 50 The strong ammonia solution produced in the absorber flows down to the absorber vessel and from there to the boiler system, thus completing the cycle of operation. The liquid circulation of the unit is purely gravitational. Copyright © 2004 Performance Cruising Inc.
Page 51 Below 37402 Elbow 45 Water Inj. Exhaust Oil Pressure Meter 37603 37401 Elbow 90 Oil Pressure Sender 24132 Zinc 11885 A.) Oil Pressure Switch - 34761 to Dec. 1988 - 37323 From Dec. 1988 Copyright © 2004 Performance Cruising Inc.
Page 52 Phone: (781) 631-3282 Fax: (781) 639-1467 Email: hansen@hansenmarine.com Web: www.hansenmarine.com MARYSVILLE MARINE NORTH Distributor Covers: Illinois, Indiana, Michigan, New York (West of 181), Ohio, Pennsylvania (West of 181). 1551 Michigan Avenue Marysville, MI 48040 Copyright © 2004 Performance Cruising Inc.
Page 53: Addendums
Contact Information: Main Contact(s): Mr. Lawrence Sintes Phone: (504) 288-8431 Fax: (504) 288-1758 Email: l-sintes@hotmail.com TDC EQUIPMENT Distributor Covers: Arizona, California (Southern), Hawaii, Nevada, Utah. 15886 Manufacture Lane Huntington Beach, CA 92649 Contact Information: Copyright © 2004 Performance Cruising Inc.
Page 54 Phone: (707) 426-6670 Fax: (707) 426-0206 Email: sales@marinegate.com GALLERY MARINE Distributor Covers: Alaska, Idaho, Montana, Washington, Wyoming. 717 NE Northlake Way Seattle, WA 98105 Contact Information: Main Contact(s): Ms. Barbara Jordan Phone: (206) 547-2477 Fax: (206) 547-2180 Email: parts@gallerymarine.com Copyright © 2004 Performance Cruising Inc.
Page 55: Westerbeke 30B Quick Notes
For complete instructions on maintenance and care Spare Parts Kit - (A) - please make checks payable to of your new Westerbeke 30B Diesel Engine, please Performance Cruising for a total of $170.00 The kit read the included manual thoroughly. includes:...
Page 56 Remove and check fuel injectors ** Check compression pressure ** After Every 1,000 Hours Remove & clean heat exchanger Remove & clean hydraulic transmission cooler ** Should be done by competent mechanic. Refer to Operator's Manual. Copyright © 2004 Performance Cruising Inc.
Page 57: Bottom Paint Faq
A disadvantage to hard antifouling paint is the buildup of and how it is maintained between recoating. Sanding when residual paint film that occurs when the surface is not prop- recoating will add to the longevity of the bottom jobs. By Copyright © 2004 Performance Cruising Inc.
Page 58 If left on the surface, it restricts There are a number of key reasons to keep your hull free the copper being released to the surface to prevent shell from fouling: fouling. Copyright © 2004 Performance Cruising Inc.
Page 59 It is important to match the paint with the boat location. When the proper paint is chosen, two coats should last the entire boating season. safety and safe procedures while harvest- ing geoducks. Copyright © 2004 Performance Cruising Inc.

Performance Cruising Gemini 105Mc Owner's Manual

Topicpage

Quick Start

Plumbing, Head, and Fresh Water

Propane

Shore Power

Air Conditioning

12 Volt Power

Mast and Rigging

Topicpage

Engine

Centerboards and Rudders

Construction

Sails and Sailing

Anchoring

Docking & Mooring

Maintenance

Hauling and Trucking

Winterizing

Operational Checklists

Contact Information

Addendums

Westerbeke 30B Quick Notes

Bottom Paint FAQ

Quick Links

Summary of Contents for Performance Cruising Gemini 105Mc

Table of Contents