New owner questions

ejessen

ejessen

.
Aug 16, 2014
8
Harbor 20 283 Redwood City Marina
All,

I recently purchased a Harbor 20 (sail number 283), currently located at Redwood City Marina in Northern California. I absolutely love the boat and had a fantastic (and faster than expected) sail from Sausalito to Redwood City, last week. Averaged 5.5 knots and max speed was 8 knots :)

I initially contacted W. D. Schock (Carol) at (951) 277-3377 with a few questions, but the number does not appear to be accepting calls. Has anyone else had difficulty reaching them?

I would appreciate any guidance on the following:
  1. Is the inboard Torqeedo motor 24V or 12V? My assumption is 24V, but I would like to confirm.
  2. I recently purchased two new Group 27 AGM batteries (92Ah each). With fresh batteries, what kind of runtime should I expect at around 50% throttle? I have not been able to find reliable information on the motor’s current draw.
  3. There is a “1 / 2 / All / Off” electrical selector switch. On boats with separate starter and house banks, its use is straightforward—but how is it typically used on a Harbor 20? If the system is 24V, should it generally be left in the “All” position?
  4. Likely a question for Fleet 10 members in Alameda: is there a preferred sail loft for Harbor 20 sails? I will soon need to replace my jib sock.
  5. I am looking for a few additional stainless steel fender hooks (photo attached). Does anyone know where these can be purchased?
  6. I also need to replace the port and starboard navigation lights. Does anyone know the brand and/or part number typically used?
Finally, is there an owner’s manual available for the Harbor 20?

Thank you in advance for any assistance.

Erik Jessen
eriknjessen@gmail.com
 

Attachments

jssailem

jssailem

SBO Weather and Forecasting Forum Jim & John
Oct 22, 2014
24,453
CAL 35 Cruiser #21 moored EVERETT WA
Eric.
You probably know that the Schock family is no longer involved. Here is some background info.

You might try the email address.
  • Based in Santa Ana, California (address: 1232 East Pomona Street, Santa Ana, CA 92705). Phone: (951) 277-3377. Email: sail@wdschockcorp.com.
  • Ownership: Sold by the Schock family in 2011 to Alexander Vucelic von Raduboj, then to John O'Donnell (former general manager) in 2014. John O'Donnell remains president. The company is no longer family-owned but continues the Schock name and legacy.
  • Focus: New sailboat construction (primarily Harbor 20), repairs, parts, and service for older Schock boats. They emphasize one-design racing fleets and club programs.
This forum, the Brand-Specific Harbor20 forum, has very sparse activity. You might be better off asking your questions in the "Ask ALL SAILORS" forum.

Are you rigging for daysailing, or is it your intention to race the boat in the class races on the Bay? Class specifics are best addressed with the Class organization. The Harbor 20 | Harbor 20 Class Association

Your electric motor query is interesting. It is not an "Inboard". It is a removable that was specifically designed for the Harbor 20 by Torquedo.
An electric motor is available to push the boat at about five knots and to provide convenient, quiet, and odorless propulsion. The motor, which is permanently mounted on a stainless steel pivot arm, swings out of the aft lazarette and pins onto the starboard gunwale. No wrestling with an outboard and no through-hull fittings! Four hours at maximum speed comes from the two batteries installed forward under the cockpit seats. The 24-volt system can be easily recharged with the in-line three-step charger. Just plug it in at the dock. (WD Schock)​

From what I can read about the motor and the boat, it sounds like you may have 2 systems: one 12-volt for lights (navlights) and the 24-volt system with charging for the motor. This was provided in a search about the motor.
Power comes from two 24-volt batteries (typically located forward under the cockpit seats), providing about 4 hours at full power (pushing the boat at ~5 knots max). It recharges via a built-in charger with shore power.​

Your two new 12-volt batteries may not replace the ones onboard. If the onboard batteries are 24 volts, as identified in my search, then your two batteries would need to be combined (in series) to produce 24 volts for the electric motor.

Powering at half power may not get you 5 knots over the water (due to tides and surface conditions). The documentation I found suggests the original equipment could push the boat for 4 hours at 5 knots.

Looks like a fun daysailer for the Bay. :biggrin:
 
jssailem

jssailem

SBO Weather and Forecasting Forum Jim & John
Oct 22, 2014
24,453
CAL 35 Cruiser #21 moored EVERETT WA
Regarding the manual, I could not find a full manual for the boat.

The association does provide a number of tips that may help you.
The Harbor 20 Class Association website (harbor20.org) offers several useful owner-oriented documents and guides in the Tuning Tips & Maintenance section
 
C

Calif. Ted

.
Jun 8, 2004
3,002
Catalina 320 Dana Point
You must log in or register to reply here.

Top Bottom