Nevermore Systems Descriptions

S/V Nevermore Ship's System Descriptions

Editor's note: 
 * This document is spun off Aleida's Sub-System list version 11June04.
 * Observe that -- because section numbers are coded into the section
   headings -- we often turn the "show contents" feature off, since
   it prepends its own computed section numbers to make a very silly list. 

2 SUBSYSTEMS TO BE ADDED TO THIS DOCUMENT

• centerboard

3 BOAT SYSTEMS

3.1 standing and running rigging (including mast-partners)

- - - - * running rigging

                     (do we want this header, since it's just a 
                     nuisance to put sails in subheaders under 
                     it (which we didn't do, you'll notice)
                    (Maybe if I could think of more things to
                     list under standing rigging, I'd like to
                     have separate "standing" and "running" headers?)

3.2 Ship's Machinery

3.2.1 power train

3.2.1.1 engine

* Engine model: Westerbeke 50

See Tartan's Engine schematic dgm of 12-V DC circuitry which comes with the Engine.

Misc observations (useful in troubleshooting):

Engine instrument panel gauges (05Sep07):

Water Temp gauge

* goes off left (cool) end with sender disconnected (good)

* shows 360 ohm @ 100 deg, 25 ohm @ 230 deg

Oil Pressure gauge

* goes off left (0 psi) end with sender disconnected (good)

(but note: Calder p.288 says most O.P. gauges go to high reading)

* sender shows 460 ohm @ 0 psi, 44 ohm @ 50 psi, 0 ohm @ 80 psi

See Tech Letter #72 page V.4 Engine Manual

"Gauges -vs- Senders non-Interchangeability"

engine mfgr has used 4 different gauge mfgrs for WT & OP, and each

requires sender by same mfgr; diagrams are given for configs of

connections for each kind of gauge gauge.

TODO: define here which make of gauges we have (so tested above),

and (a) mention it in the 2 sets of resistance readings above,

and (b) annotate Engine Manual

3.2.1.2 transmission

* Appears to be a "Short Profile Sailing Gear" transmission

(page S.41 of Engine Manual, by comparing it to descriptions of

about 5 different kinds of transmissions described therein)

* Type of transmission fluid: AFT type A, or Dextron II

TODO: find out if it's of HBW 5, 10, or 20 type(?), which will determine

whether it uses 0.4, 0.6 or 0.8 litre of xmission fluid.

3.2.3 bilge pumps

3.2.3.1 Electric Bilge Pump

Jabsco Water Puppy (Model 18660-0121).

Specs:

Body	Bronze
Impeller	Neoprene p/n 6303-0001, -0003 nitrite for oil-resistence
Voltage	12 Vdc
Amp Draw	8 amp
Fuse Size	15 amp
Port Type	1/2" Internal Pipe Threads
Dimensions	3 x 4-3/4 x 6-3/8 inches (7.6 x 12.0 x 16.2 cms)
Weight	4-1/2 lb (2 kg)

More information can be found in the Jabsco Water Puppy Technical Data Sheet

This pump is mounted on the port side of the stern lazarette. A white, corregated plastic ("Bilge-flex"), 3/4" I.D. hose leads from the bilge to the pump. A white, corregated plastic, 5/8" I.D. hose leads from the pump to a through-hull port on the starboard side near the stern. Note that this is the same port used by the manual bilge pump.

The bilge pump is wired directly from battery #1 to the 3-way switch on the nav station breaker panel. The up position manually turns on the pump. The down position puts the pump in automatic mode, in which a "float switch" will turn on the pump when water level in the bilge rises. A 15-amp fuse is inline with the positive lead from battery #1. The yellow rubber fuse holder for this fuse is strapped to the wiring harness that runs directly above battery #1.

The float switch (which doesn't actualy float) for the bilge pump is located behind the aft-most panel above the port bench in the cabin (just forward of the nav station). An orange hockey-puck-sized rubber cover surrounds a microswitch which is affixed to a rubber diaphram. A black plastic air tube runs from the diaphram to a plastic air bell in the bilge. Rising water in the bilge will increase air pressure in the tube and activate the switch.

As of 9/3/2007, the switch is not sensitive enough to be activated by 6 inches of water.  
Deeper water might activate the pump, but the required depth is unknown.  
A newer model float switch (Jabsco Hydro Air Bilge Switch) will be ordered.

3.2.3.2 Manual Bilge Pump

This pump is mounted on stern lazaret to starboard of steering position. Its handle is tied to boat in stern lazaret. A second handle is aboard. Gray corrugated plastic hose, approx 1", leads from bilge to pump.

TODO: define hose to thru-hull, and position of thru-hull.

TODO: define model number, capacity, etc., of pump.

3.2.7 Fresh Water System

The fresh water system is supplied by 2 tanks, a 30-gallon tank on the port side, and a 60-gallon tank on the starboard side. Each tank has 2 inspection ports which are easily accessed through the lower berth/bench on either side of the main cabin.

Valves under the cabin floor connect the two tanks. Either tank can supply water to the system, or both tanks can be linked together.

3.2.7.1 Fresh Water Pump

Nevermore Water Pressure Pump

Jabsco Par-Max 3.0 (Model 31395-3000).

Specs:

Voltage	12 Vdc
Amp Draw	5.2 amp @ 10 PSI
Fuse Size	10 amp
Flow	3.0 GPM
Ports	"Snap-Fit" ports with 1/2" hose adapters
Dimensions	9 x 4.2 x 4.75 inches
Weight	4-1/2 lb (2 kg)

The water pressure pump is located just forward of the starboard tank, under the lower berth. Diaphram design allows pump to run dry without damage. Internal pressure sensor stops the pump when working pressure is acheived.

3.2.7.2 Fresh Water Strainer

Nevermore Fresh Water Strainer and Accumulation Tank

Jabsco Pumpgard (Model 36400-0000)

Water from one or both tanks is filtered by a steel screen strainer which is inline just before the water pump.

The strainer can be cleaned by unscrewing the plastic cover from the top, removing the cylindrical screen, and rinsing it out with fresh water.

3.3 Ship's Electrical Subsystems

3.3.1 12-volt DC

- - - - * main switch panel (CktBrkrs) at Nav Station

         See nav_station_switches for usages of individual switches.

         The main circuit panel above the nav table is organized into groups
         of controls including (from left to right):
            1. meters for battery voltage and current being used by ship's systems
            2. one "bilge/sump" switch controlling the electric bilge pump
            3. two horizontal rows of 6 combination circuit-breaker/switches
            4. a vertical row of 7 combination circuit-breaker/switches
            5. a control subpanel associated with cockpit Nav instruments, with
               lamp dimmer control for instrument backlights, a repeater log, 
               and an additional ckt brkr for the Nav instruments.
                
         Subsections below delineate each one of these groups, but in the order
         3, 2, 1, 4, 5, i.e., in the order one might have to use the controls

- - - - - - * main switch/circuit-breaker sub-panels (horizontal switches)

         Battery voltage to this sub-panel's switches is OFF unless battery power 
            is ON on one (or more) main rotary battery switch
         No voltage is applied to the remainder of the 11 switches unless
            the upper-left-most switch of this sub-panel (named "MAIN") is on.

- - - - - - * sump/bilge switch

         Voltage is ALWAYS on to this switch, even when main rotary switches are OFF.
         It is always connected to power from Battery #1, through an inline fuse
            located in the wiring harness above the battery.  Removing the fuse
            removes voltage from the main panel's bilge-pump circuits.
         Use of switch is defined in 3.2.3.1 Electric Bilge Pump.
         A note on terminology: The terms "bilge" and "sump" are synonymous on 
            Nevermore; Tartan's original "sump" was a separate catch-basin for ice box
            and shower water, while "bilge" was used normally.  As far as we know (Sep07),
            the "sump" isn't used any more, and we use the 3-way switch to provide 
            OFF, AUTOMATIC, or MANUAL operation of the single bilge pump.
         TODO: mark up Tartan 37 User's Manual to NOT talk about the "sump".
         TODO: check whether the refigerator (ice box) still drains into 
            any kind of sump.
       

- - - - - - * meters (voltage, current)

         Meter ranges:  voltmeter 0 - 25 VDC; ammeter 0 - 50 A
            Note: an expanded-range voltmeter might be better, e.g. 9 - 15 VDC.

         Voltmeter quirk: it appears to read high by approx 1.4 or 1.5 volts.
            The zero-point for the meter has been adjusted to read battery voltages
            correctly (per Ted's VOM); therefore the zero-point will be off-scale. 

          Ammeter reads only the current being used by ship's systems, but not
            any usage by the engine; it especially does not indicate battery
            charging; the ammeter on the engine control panel does that. 

- - - - - - * auxiliary switch sub-panel (vertical) at Nav Station

          QUESTION: does the horizontal sub-panel's "main" switch also 
             control power to this sub-panel; we assume so.

ANSWER: YES (Ted) or NO (Thom)

- - - - - - * other control panel upper-right of nav-station panel

         TODO: check what Ted said about "extra ckt brkr protection of Nav
               instruments in item 5 above, and make a statement in terms
               of how primary 12-V power is provided to them.

- - - - * Batteries

          Batteries #1 and #2 (controlled by top main rotary switch) are 
             "mixed use" (starting and deep discharge) batteries of the same type;
             they're located below nav station seat; #2 is fwd, #1 aft
             Powermaster DC-27P, flooded, 750 MCA, 200 min reserve
          Battery #3 (controlled by bottom main rotary switch) is
             "heavy duty marine starting" battery located in engine compartment
             Powermaster (unknown model), flooded, (unknown values)
          The two rotary battery switches are 
             Guest 2300A, 360-amp, 600-amp momentary;
             both have AFD (alternator field disconnect) but they aren't wired.
             hence it is very important that at least ONE battery be
             selected =ON= at all times that the engine is running.
             Emphasizing importance of above: we've found NO alternator
             protector (West Marine catalog index term) to prevent over-voltage
             from blowing the alternator's diodes when all batteries are turned 
             "OFF" while running the engine; nor are the AFD (alternator field
             disconnect) contacts on the main switches wired (nor can they BE
             wired, with the present wiring of the bottom switch Batt #2 contact.)
          TODO: put some of the AFD unwirability discussion in a "quirk" section,
             and make a simpler statement in THIS paragraph...

See Main Batteries Usage Strategies

for instruction and rationales for battery switching and use.

See Main 12-volt Control Schematic Diagram

which includes schematic (graphic) and a walk-thru of circuitry (text).

3.3.2 120-volt AC

Here's a few observations of 120-volt AC circuits off top-of-my-head:

• Shore power connector on port quarter; it is the aft-most of 2 connectors. (Other is "phone".)

• Two CktBrkrs on bulkhead to left above nav station seat
  • port-most CktBkr: "110 V AC" which we assume is a master switch/CktBrkr for all 110-V AC. The circuits Thom has observed include:
    • 120-volt AC -to- 12-volt DC Converter unit, for charging batteries, under settee directly in front of Nav station
    • 120-volt "wall-socket" in head
    • 120-volt "wall-socket" over sink (or thereabouts)
    • perhaps also enables the CktBrk below (hot water)
  • starboard-most CktBkr: "WATER SYSTEM" which is heater unit in the same hot water tank that the engine water heats. See Tartan User's Guide for admonition not to turn on 120-volt to heater unless pressure pump is also turned on.

The shore-power connection is for 120-volt AC. Two shore power cords are aboard, both with either 20A or 30A 125V locking connectors

TODO: check continuity w/o plugging in to shore, trying to have only the water heater on in one test to see whether it's connected, etc.  (Hint: the battery charger Converter has a primary on/off switch which Th assumes switches the AC power on/off.)
TODO: add page number in T. U.G. for admonition about having water pressure on for heater.
TODO: check that the yellow cables aboard are compatible with boat's 120V fitting.
TODO: check whether shore cords are 20 or 30 amp
TODO: check that shore cords are compatible with ship's connector.

3.3.3 anti-electrolysis

- - - - * zincs in engine block seawater cooling system

                QUESTION: don't know where exactly located: 
                Tartan engine manual mentions something like
                "zinc in heat exchanger" (p.20) but maintenance log
                penned on back page says "replaced both zincs..."

3.4 Electronics

3.4.1 basic instruments

3.4.1.1 fathometer

meter and transponder [permanent seal] [thru-hull]

3.4.1.2 knotmeter

meter and transponder + dummy transponder [thru-hull]

3.4.1.3 station VHF

(fixed)

see Radio_Channels_in_Boston_Harbor for VHF channels likely to be used.

See VHF_Frequencies for a complete list of US VHF channels with their intended usages.

Some channels have been highlighted:

Note that the channel-usages below are somewhat colloquial

and are not stated in the officialese of the table ref'd above..

• 16 - emgcy, USCG announcements, and ship-to-ship hailing
• 09 - pleasure-boat hailing (and other uses)
• 22A - Coast Guard advisories (announced on 16),

ship-to-USCG communication when CG commands it

• 12 - some CG stations (other than Boston) use 12 instead of 22A
• 13 - commercial ship-to-ship bridges; used instead of maneuvering COLREGS whistles;

use shorthand hailing protocol, terse messages;

we MIGHT xmit if they talk about us and stating our intentions can help them

• 06 - search-and-rescue
• 68, 69, 71, 78A - non-commercial (boat-to-boat & boat-to-shore facilities)
• 72 - non-commercial boat-to-boat

3.4.2 electronic aids

- - - - * GPS (Raytheon, fixed)

        * Displays on same screen RADAR uses
        * Don't know whether it can overlay with radar... hummm...
        * GPS functionality is in the box mounted on top of nav station switch panel
        * Not known whether it works (Sep07)

- - - - * GPS (Garmin 276C

              Garmin GPSMAP(r) 276C - ordered late Sep07

- - - - * RADAR 8-direction detector

               Just what IS the name of this thing

3.4.4 signaling

- - - - * ship's whistles

               compressed air (type of cans?) and mouth-powered

- - - - * dayshapes: steaming cone, anchor ball

                 (not required in US waters?)

3.5 Hull and joinerwork inside

3.5.1 dimensions & capacities

            hull: draft (CB down/up), LOA, LWL
            hull number:          design number:
            mast height:
            displacement:
            keel / CB weight:
            fuel capacity:
            fresh water:  capacity:      number of tanks

3.5.3 tools (esp. emergency

            * thru-hull valve handle wrench
            * sledge hammer for thru-hull plugs
            * cable cutters for shrouds
            * axe esp. to cut away mast

4 DINGHY

               incl pump, oars/oarlocks, motor, bailer
               such things as thwart, bow splash-cover
               fuel tank/filler cap/airvent, fuel-hose, pressure bulb
               painter(s) / tow-line
               anchor and rode
               lights 

5 SAFETY/EMERGENCY EQUIPMENT

5.1 dedicated safety equipment

          NOTE: we're dumping in Aleida's entry right now (28Aug07)
       * fire extinguishers (2 mounted, 1 extra)  (TODO: define type, size)	EMGCY
           	2 mount by companionway and in head; 1 extra in fwd cabin shelf
       * signal flares and flag  (in the orange tub by companionway stairs)    EMGCY
               (out of date flares in another orange tub forward cabin)
               TODO: mention what all is in the primary orange tub
       * manual bilge pump  (and handle) (under sink main cabin) [thru-hull]	EMGCY
       * liferaft	     (big, simple, open, self-inflatable) (in stbd laz)	EMGCY
                            TODO: fill in info about liferaft
       * PFDs   					
         * inflatable type 5 equiv type 2 manual op (25? pounds flotation)      SAFETY
               TODO: how many?  and list the belt version?
       * type 4 (2 cushions)					SAFETY
         * type 3 jackets (like pavilion)   (in stbd laz hammocks)		SAFETYs
         * type 3 "collars" (use with inflatables) (in port laz plastic "box")	SAFETY
       * harnesses			(not known compat with PFDs)		SAFETY
       * jacklines (2)								SAFETY
       * MOB horseshoe + drogue + flag + strobe [6-v screw-term lantern batt]	EMGCY
       * MOB lifesling     lifesling block-n-tackle (use spinnaker halyard)	EMGCY
       * first aid kit     stored in cupboard in head)				EMGCY
       * first aid reference book 	(???)					EMGCY
       * emergency tools: * cutaway: shroud cutter, hacksaw?, axe		EMGCY
       * QUESTION: do we want to list emergency tiller here?			EMGCY

5.2 cross-ref to other boat equipment for safety/emergencies

          NOTE: we're dumping in Aleida's entry right now (28Aug07)
       * liferaft:          take VHF handheld, extra water, search light
                            Note that if we use VHF as routine deck monitoring,
                            battery charge probably depleted before an emergency
                               TODO: check what is capacity of liferaft
                               TODO: list what provisions are in liferaft
  
       * thru-hull plugs:   p/o hull (stored ???___), bung-hammer   (under stairs)
                		thru-hull valve handle wrench (pipe) (under stairs)
       * manual bilge pump: permanently installed and connected to a thru-hull
       * standing rigging:  shroud-cutters, hacksaw (stored under stairs)
       * GPS:               batteries for portable op   (4 x AA)
       * searchlight:       batteries for portable      (4 x D)
       * flashlights:       * black "keen" light        (8 * AA)
                            * others:  [TODO: decide on standard equip + define]

6 OPERATIONAL EQUIPMENT

         e.g. hand-held compass, binoculars, 
              searchlight (battery powered and/or ship's 12V powered),
              flashlights,
              navigational tools

7 DOCUMENTATION and REFERENCES

       * Nevermore registrations (MA and Boston)
       * Dinghy registration  (MA)
       * SeaTow policy, calling card mounted
       * Nevermore installation/maintenance documents
          * engine manuals (how many?  what are their titles)
          * operation booklets:  (list equipment, or reference
                                   their sections where defined above)
          * miscellaneous systems (in no-order in some kind of folder)
       * PHRF-NE rating document
       * what reference material must we have?  
          * current Eldridge?  	
          * pump-out station contacts
          * any specific charts?
          * some nav rules  * shipspotter lights?  
          * cruising services ref?
          * phone-numbers of Franny Charles, Sailing Pav 
          * Insurance Co (don't need, contact Franny/_who_ for any trouble)
                             ("who" above is name/number of other coach(es))

8 MARINE SUPPLIES and SERVICES

             (Aleida had Winthrop-oriented marine and auto stores)
          * West Marine: Woburn Wash. St. at 128, 781-933-3290; 
                         Dedham Allied Dr. at 128; Braintree
          * Boxell's Chandlery: South Boston, Dorchester Ave & B-Street, 
                         Red Line Broadway stop