Mashnee systems

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This is an exhaustive list of Mashnee's various subsystems.




Mast and Boom

Standing Rigging

Shrouds and Spreaders

Headstay and Backstay

Running Backstays

Running Backstays: 55', 1/2" double-braid

Running Rigging


Main Halyard: ~75' 3/8" cored line spliced to ~45' 14' single braid (lengths approximate)

Main Sheet: 90', 9/16" three-strand

Shallow Reefing Line: 50', 3/8" double-braid

Deep Reefing Line: 58', double braid



Secondary Halyard

Sheets: 58', 9/16" double-braid

Roller furler line


Halyard: ~130' 7/16" cored line with pelican hook. (Length approximate)

Secondary Halyard: ~90' 7/16" cored line spliced to ~33' 1/4" single braid, ending with 6' cored line. (Lengths approximate. Thin section is a hazard as it can jump out of the halyard block sheave and jam.)

Sheets: 107', 87' of 3/8" double-braid with 20' of 5/16" single-braid section

Tack Outhaul (standard): 75' 1/2" double-braid

Tack Outhaul (top-down furler): 45', 40' 1/2" double braid with 5' of 3/8" single-braid section

Top-Down Furler line: 50', double-braid


Sails Kept on the Boat


  • Sobstad mainsail, new 2021 (only really used 2022)


  • working jib (<100%)(~2008)
  • 95 (new 2023)
  • 140 (new 2022)
  • 165 (new 2022)


  • code zero (black) in red sobstad bag
  • Big red (red)

Sails not on the boat

  • reacher (green and white) - left at pavilion as spare




Power Train


40 HP Volvo D2-40 diesel engine. Installed: 2008.



Stuffing Box


3 blade Gori feathering propeller. File:Mashnee gori prop.pdf and File:GORI Manual-15-16 5-Overdrive-Shaft-A4-3.pdf

Folding the Propeller

Put the gear shift in reverse when the engine is off. This locks the shaft and ensures the propeller folds and does not spin. Then return the lever back into neutral.

Normal Ahead

If you want to shift from "overdrive" to normal/forward position, the lever will have to be put into neutral when the boat does more than 1 knot ahead until the blades have folded again, then put it in the forward position again. If the propeller is spinning with the engine in neutral, you must go gently in reverse, while the boat is moving forward. After the propeller has been going in reverse for a few seconds, you can go back to neutral and the propeller will have folded and the shaft stopped. when you back to forward, the propeller will be in normal ahead. Before leaving the harbor, always check the position of the propeller by means of the boat's tachometer so that the propeller is in the wanted position.

Going Astern

in the reverse position the blades swing 180 degrees opposite the forward position which ensures the same blade leading edge and profile, resulting in high-efficiency. If the boat has not been used in some time, you should shift cautiously between forward and reversed a few times before sailing in order to clean the teeth of the blades and the gears from fouling.

Going Ahead in Overdrive

The “Overdrive” function is to be used when motoring at a cruising RPM in fair weather or when motorsailing. Overdrive is a second larger pitch achieved by going forward with the propeller blades in the reverse position. The second higher pitch acts like 5th gear in a car and likewise can increase speed and efficiency.

In order to position the propeller in forward "overdrive" it is necessary to move the boat astern so that the blades are kept in reverse position when the lever is put into forward. Do not try to make the propeller go from forward to "overdrive" position by quick shifts with the lever when the boat is sailing ahead in the water. When in reverse position, the blades have a 20% higher pitch than forward. when you go forward with the propeller in the reverse position, this higher pitch is kept, enabling overdrive. If you are in standard forward at the higher RPM and want to go into overdrive:

  • 1. Reduce the engine RPM and put the shift lever into neutral
  • 2. Go into reverse
  • 3. Raise the engine RPM several hundred for a few seconds
  • 4. Reduce the engine RPM and move the shift lever to forward smartly without hesitation You will now be in overdrive.

If you are in overdrive and want to go into standard forward:

  • 1. Reduce the engine RPM and put the shift lever into neutral
  • 2. Bump into reverse for a second which stops the shaft immediately
  • 3. Wait several seconds (shaft should stop rotating), blades fold closed from forward motion and then shift back into forward
  • 4. This will give you the standard forward position. By bumping into reverse and leaving the engine in neutral for several seconds you are allowing the shaft to stop rotating and the propeller blades to fold closed (action of water flow over the positively geared blades), then when you go back into forward the blades will open in the standard forward position.

Often just after leaving the marina slip you may find that the propeller is in Overdrive. This is due to when backing out of the slip and then shifting the into forward position - while the boat was still moving backwards - the blades will be in the overdrive position. Simply put the shift lever into neutral for a few seconds, make sure the shaft stops turning (bump into reverse for a second) and then back into forward and you will be in the standard forward. Many Gori customers use overdrive for the vast majority of their motoring, only using standard forward in conditions that require great thrust and high RPM such as to power through heavy seas or quickly maneuver.


Fuel System

20 Gallon diesel fuel tank.

When the tank is full, the fuel gauge reads "F". When the tank is 10 gallons down, the fuel gauge reads "E". The gauge seems to be non-linear and should not be relied upon for accurate measurement of the fuel tank.

Fluids and Filters and Impeller

  • Engine Oil: 15W-40
  • Engine Oil Filter: volvo penta 3840525
  • Racor Fuel filter: R12P
  • Engine Fuel Filter: Volvo Penta 861477-8





Bilge Pumps

Strum Boxes




Electric Wiring

These two documents were provided by Mashnee's restorers:



Two batteries run through a battery switch. Batteries are both house and engine; no distinction possible with current wiring.

Solar Charging


Circuit Breaker Panel =

Cabin Lights



Navigation Lights


Lightning Dissipation


B&G System Notes

  • Tips:
    • Turn on VHF breaker to get AIS targets on chartplotter
    • Turn off the chartplotter before turning off breaker

How to:

  • Connect to the H5000 Webserver to adjust settings, perform calibration, etc.
    • Connect to wired ethernet connection with your computer
      • Set your laptop to a manually assigned IPv4 for computer of
      • Ensure subnet mask is
        • Go to a web browser and enter

  • Restore sailing (and other) instruments display on chartplotter
    • Press top button (pages/home)
      • Press gear icon on left
        • Press ‘network’
          • Press ‘sources’
            • Press ‘auto select’ (wait while it sorts things out)

  • Restore ‘boat speed’ indications
    • Press top button (pages/home)
      • Press gear icon on left
        • Press ‘network’
          • Press ‘sources’
            • Press ‘boat speed’
              • Select: ‘ST200’
  • Make AIS targets visible on chartplotter
    • Press top button (pages/home)
      • On left ribbon: press ‘vessels’
        • Shows list of targets
          • Press ‘display all’ to make them visible on chartplotter
  • Connect system to compass
    • Press top button (pages/home)
      • Press gear icon on left
        • Press ‘network’
          • Press ‘sources’
            • Press <heading? compass?>
              • Select: precision 9

Unresolved issues

  • CP forgets configuration items, as above

All the manuals are here:

Chartplotter MFD

B&G Zeus 3S

  • To activate the MOB feature
    • press both the check mark and the x button (next to each other) at the same time
      • This will drop a waypoint and the graphical display will navigate to that
  • To clear the MOB
    • Using the hamburger menu (three bars in the top right), stop navigation. Then click on the MOB X waypoint on the chart and delete it
  • To turn on the radar
    • Ensure "radar" is turned on in the overlays menu (hamburger menu button and scroll down)
    • Then go to the radar options tab and click "Transmit"
    • When you're done, either click "Standby" or "Power Off" per your desired behavior

WIFI: B&G Zeus 3s streams both NMEA 183 and NMEA 2000

  • Zeus 3s: SSID: <zeus something…>
    • PW: S4XGzxx9
    • NMEA 183 stream port 10110
      • Streams AIS targets and instrument readings

B&G H5000 Hercules CPU


B&G WS310.

Depth Sounder/Log/Water temperature

ST200 speedo and temperature Echosounder for depth

Precision 9 Compass

NMEA 2000 network

There is a standard NMEA 2000 network with most connections behind the false panel in the aft-most port cupboard (above the ice box). The backbone has been extended using .5 meter backbone cable and a drop tee. There is an additional set of connectors in the forward compartment just to port of the mast. There is one free port at the mast.

Raymarine MN-100-2 Solar Powered Wireless Displays

  • Associated wireless interface: Raymarine Tacktick T122 located in aft-most port cupboard
    • Connected to 12 volt power
    • Connected to a NMEA2K to NMEA 183 translator:
      • Actisense NGW-1
      • Translator powered by NMEA 2K network


B&G Broadband 4G Radar

AIS Transponder

  • Vesper Marine XB-8000 Class-B AIS Transponder. As of Aug. 2019, it is installed behind the VHF in the forward compartment. The WiFi network and password are written on the unit.

To connect to NMEA 183 stream with AIS targets: port 39150

Pw: PaveTheRiver To connect to NMEA 183 stream with AIS targets: port 39150


Fixed VHF

Magnetic Compasses

There is a magnetic compass which is placed in the starboard cockpit locker. When it is deployed it is mounted on a small brass rail at the foot of the companionway.

Note, this compass cannot be trusted. Compasses do not take hard knocks well, and there is no guarantee that its placement is not in a magnetically pathological location. This compass can be used for relative heading hold, e.g. maintaining a number. However, the absolute values are not to be trusted at all. [KDS]



The stove is an Orico-style alcohol stove. Alcohol does not burn as hot as propane so it takes longer to cook.

To operate the stove, remove the wooden plate and place it above, where the metal underside will serve as a heat deflector.

The top of the stove needs to be open to reveal the metal canister underneath. There is a black rubber disk which seals the canister and keeps the alcohol from evaporating. Remove this.

Ensure that the stove dial is turned to the on position, and then the stove can be lit with a lighter or match.

The stove is extinguished by turning the dial fully off, and then replacing the rubber disk and the wooden cover.

Ice Box

  • There is a sump under the ice box to collect the meltwater. This sump can be emptied via the salt water foot pump for the sink if the cross-flow valve underneath the sink is switched. The valve has a pointer on it and the pointer must point up (12:00) for sump drain and to the right (3:00) for the salt water intake.

sump drain valve - click to see


Fresh Water


Fire Extinguishers


  1. Spinlock DeckVest Lite 170n, new 2023. Equipped with MOB 1 AIS beacon (exp. 2030) (Replaced a Spinlock 5D, purchased 2015, retired for failed zipper car)
  2. Spinlock 5D, new 2015. Arm kit replaced March 2023.
  3. Spinlock 5D, new 2015. Arm kit replaced March 2023.
  4. Spinlock 6D, new 2022. Equipped with MOB 1 AIS beacon (exp. 2029)
  5. Spinlock DeckVest Lite 170n, new 2023. Equipped with MOB 1 AIS beacon (exp. 2030). (Replaced a Spinlock 5D, new 2015, retired for torn bladder attachment tab)
  6. Spinlock 6D, new 2022. Equipped with MOB 1 AIS beacon (exp. 2029)
  7. Spinlock 6D, new 2022. Equipped with MOB 1 AIS beacon (exp. 2029)
  8. Spinlock 6D, new 2022. Equipped with MOB 1 AIS beacon (exp. 2029)
  9. Spinlock 6D, new 2022. Equipped with MOB 1 AIS beacon (exp. 2029)
  • Inflators are UML5 (5D) or Sensor PRO (6D) with 38g cylinders
  • All have harnesses built-in


Harnesses, Jacklines, Tethers

  • 8 tethers, 3 new as of 2022, 3 new as of 2023. 2023 set are West Marine Racing Series Double Safety Tethers.
  • 4x jacklines

Visual Distress Signals