Boat Details

Roberts Ketch 45′ 1979


Please let us know which boat(s) you are interested in, and any questions you may have.


Major price reduction of $20,000, owner wants her sold!!!

Roberts 45 foot ketch, fiberglass hull, This boat has a very nice layout, excellent for cruising. She just came in from a trip up from Australia via South Africa and she is ready to head out again. Excellent sail plan and has pretty much everything you need to cruise in comfort.

This vessel is located in beautiful San Carlos Sonora, Mexico, A short 250 mile drive on a safe 4 lane highway from Nogales, Az. San Carlos is a known boating destination/community, featuring breathtaking scenery, quiet anchorages nearby, great fishing, diving, two marinas, 3 haul out facilities and much more.

The Company offers the details of this vessel in good faith but cannot guarantee or warrant the accuracy of this information nor warrant the condition of the vessel. A buyer should instruct his agents, or his surveyors, to investigate such details as the buyer desires validated. This vessel is offered subject to prior sale, price change, or withdrawal without notice.

Financial and titling transactions are conducted in the US or Canada by licensed agents. An offshore purchase means great savings and the process is more hassle-free than you may think! Call for details.

San Carlos Yachts
Division of Mazatlan Marine Center
Don Brame & Brisa Llanes
Edificio Marina San Carlos Local # 3
San Carlos, Sonora, Mexico 85506
Toll-free 1-855-846-7245
Our Local phone 011 52 (622) 226-0037

Detailed Information


LOA:  45 ft

Lwl:  37 ft

Draft:  6 ½ ft

Beam:  14 ft

Height (bridge clearance):  53 ft

Displacement:  32,000 lbs

Ballast:   9,500 lbs

Headroom:  6 ft 2 inches

Hull material:  Fiberglass

Keel type:  Full cutaway forefoot

Engine and propulsion

Engine make:  Detroit Diesel

Engine model:  Series 53, 3-53

Engine year:  1979

Engine hours:  Unknown/ rebuilt 1991/ transmission rebuilt in 2011

Horse power:   73 continuous shaft hp

Cruising rpm:  1500

Cruising speed:  5.5 knots

Max speed:  7.5 knots

Max rpm:  2800

Range:   700 + miles

Fuel type:  Diesel

Propeller type:  3 blade

Dinghy outboard:  Yamaha 1) 2 hp – 2) 8 hp

Tank Capacity

Fuel capacity:  160+ gallons

Fuel tank material:  Steel

Total No. Fuel tanks:  2

Water capacity:  200+ gallons

Water tank material:  Fiberglass

Total No. Water tanks:   6

Holding capacity:  N/A


Aft cabin with double berth, settee, and clothing lockers.  Single stateroom on port side aft of chart table with large locker and shelves.

The walk-thru between galley and aft cabin has storage pantry with  enclosed slide-out wire bins.

Chart table and nav station port side at base of companionway stairs.

Dining table and “u” shaped settee to port amidship.

Pilot berth above & outboard of dining settee.

Settee opposite table with top loading refrigerator underneath.

Head is portside forward of main salon with electric head, large mirror, tiled floor with drain and sump tank for shower.  Sink faucet and shower are manually activated.

Forepeak is a workshop with storage for sails and spare parts.

Stateroom sleeps:  2

Dinette sleeps:  2

Quarter berth sleeps:  1

Single berths:  3

Double berths:  1

Cabins:  2

Heads:  1 with shower and sump tank


Refrigeration:  Home built 220 V compressor with holding plates, water cooled

Stove:  Broadwater 2 burner w/oven

Water system:  12V Pressure + hand pump (salt and fresh)

Cooking fuel:  Propane (2-20 lb tanks)

Sink:  Double stainless

Water maker:  Hand operated power survivor

Other:  Barbeque SS rail mounted

Electronic and Navigation Equipment

SSB:  (Ham) Icom 706MKIIG

SSB tuner:  Icom AT120

Pactor:  SCS II ex updated to III

Radar:  Furuno 1623

VHF:  Icom M412

VHF 2:  Standard Horizon HX2605

VHF 3:  Old spare handheld

GPS:  Garmin 585

GPS #2:  Magellan 310

AIS receiver:  There is a transponder(which is both transmit and receive) that is installed.  Boat also has an older receive-only unit, which is in a box.

Depth sounder:  Raymarine ST60+

Knotmeter:  Navman S100

Autopilot:  TMQ (hydraulic) AP50

Plotter:  Home built w/17’’ screen w/CMAP

Compass:  Sestrel C-385 Corsair

Computer:  Homebuilt (Linux raspberry pie)

Stereo:  Panasonic CQ-C1103W

Equipment manuals:  Yes

Other:  EPIRBS



Electrical Systems

Main switch is located in the walk-thru.  “Strider” has two engine-driven alternators, three solar panels, a wind generator on the mizzen mast, a Honda inverter/generator, and 120v and 220v portable battery chargers.  The Honda generator has its own storage box on the aft deck.  Typically the solar panels and wind generator provide all power at anchor.  We have been at anchor in one spot for 2 weeks without ever needing to run either the engine or the Honda generator.

When cruising, the 220v inverter runs the fridge which we run 1.5 to 2 hours per day.  The refrigerator has a seawater cooled condensor with two holding plates and is very efficient.  The refrigerator can also be powered by the Honda generator or 220v shore power.

There are voltage regulators and voltage meters for each solar panel and the wind generator.

LED lights are used for navigation lights and several interior lights.

House bank 1:   (4)  Trojan AGM 31, 100 amps

Start bank:   (2) Flooded, 80 amps

Battery monitor:  DC Voltmeter

Battery switch:  Cole-Hersee ???

Battery charger:  Portable 12 amp

Generator:  Honda 1000 watts ??

Gen hrs:  approx 50 hrs

Wind gen:  AIR X 400 watts

Smart reg:  Balmar ARS-5

Alternator:  1) Balmar 60 series 150 watts

                   2) Bosch, 55 amps

Inverter:   1) Latronics 240 V, 700 w

                 2) West Marine, 10384559, 1000 w

Solar panel:  Solarex MSX40, 3 amps

Solar panel:  ??

Solar panel:

Other:  Solarex Regulators on solar panels

Sails & Rigging

The sails are all in good condition with the exception of the staysail, which is fair.  The genoa is appoximately 150%, and is very good at moving this boat in lighter airs.  The rigging is regularly inspected and has no obvious defects.  We have recently crossed the Indian and South Atlantic Oceans without issues.  The rigging is, however, over 15 years old, and probably should be replaced at some point.  All standing rigging has Staylock fittings, so replacement is relatively easy.  The mainmast has folding mast-steps to facilitate rigging inspection or replacement.  Both masts are on tabernacles/stepped on deck.

The mizzen mast, its rigging and sail, and the mainmast backstays were replaced in Oct. 2002, after the mast was clipped by the wing of a floatplane.  Long story-this happened to the previous owners in the Whitsundays in Australia.

The mainmast has 2 backstays.  It also has running backstays connected at the second spreaders, which we use in strong winds.

Main:  (2) good condition new in 2015, old spare fair

Jib:  Good

#1 Genoa:  Good

Mizzen:  Good

Staysail:   Fair

Storm staysail:  Good 

Sail material:  Dacron

Sail area:  750 sq ft

Traveler:  Good

Preventer:  Good

Boom Vang:  Good

Mast:  Good

Standing rigging:  Fair

Whisker:  (2) Good

Winch:  (2) Arco 44 self tailing-2 speed

Winch:  (2) Meissner 23

Winch:  (1) main halyard Lewmar 30-2 speed, self tailing

Roller furl:  Profurl NC 42

Other:   (1) Jib halyard 30, (1) spinnaker halyard Barlow 15

Deck Equipment

All deck equipment is in used but servicable condition.  The Aquapro RIB dinghy is about 11 years old.  It has an aluminum bottom and hypalon tubes.  It is in good shape, and is always covered when not in use.

The windlass has been very reliable.  It was disassembled, inspected, cleaned, and reassembled in Nov. 2013.

Anchor:  Lewmar Claw 60 lb

Chain length/size:  270’ 3/8’’  

Anchor 2:  Bruce 20 kg, 50’ of line                   

Anchor 3:  Bruce 10 kg, 30’ of chain 3/8’’, 135’ of line 

Anchor 4:  Danforth 35 lb, 20’ of chain 3/8’’, 125’ of line        

Windlass:  12V- Vertical Capstan (Unknown model and make)        

Dinghy:  Aquapro SMR-90 RIB w/hypalon

Nav lights:  Hella LED Bulbs

Bow pulpit:  Custom built SS

Deck lights:  Yes-Bow

Lifelines:  Yes, SS  

Bow roller:  Double, custom built           

Covers & curtains:  Weather cloths; some shades covers

Deck material:  Fiberglass over marine plywood

Mechanical Systems

The engine is original, but has proven extremely reliable.  It is a 2-cycle engine.  This is a little unusual these days, but all parts are readily available due to the large number of these engines still in service.   I have used Diesel Pro Power in Miami for spare parts with very good results.  They have a huge inventory and a great website which shows all parts for this engine.

The engine starts instantly and does not smoke.  There is some minor oil seepage in a few areas.  In 150 hours of motoring it typically uses/loses about 1 quart of oil.  I use 40wt single grade oil as per manufacturer recommendation and faithfully change it and the filter at least every 150 hours.

The top end of the engine was rebuilt in 1991 and the transmission was rebuilt in 2011.

The mechanically-driven tachometer is inaccurate, even though I have replaced it, thus I can’t give an accurate figure for engine hours.

The Windpilot steering gear has its own rudder that steers the boat with the main wheel locked.  It handles “Strider” well in all but the lightest winds.

Our hydraulic autopilot also does a good job steering while motoring or sailing.  The hydraulic ram is connected directly to the steering quadrant.

Important note:  The original owners kept a maintenance and upgrade log & we have continued this practice.

Propeller:  3 Blade  

Fuel filters:  Primary Racor 900 FE, secondary AC T-85

Transmission:  Warner 70 Series Velvet Drive

Self steering vane:  Wind pilot Pacific Plus II    

Bilge pump:   Rule electric, (2) manual Henderson 1500 gpm

Steering type:  SS Cables to quadrant   

Raw water sea strainer:  Yes

House fans:  Yes

Fuel shut off: Yes

Fresh water cooling system:  Yes 

Additional Equipment

Emergency tiller

Shaft Lok (shaft locking device for sailing model II)

Refrigeration gauges, vacuum pump, spare gas

Hand tools

Spare parts

Port-a-potty large capacity (new)

Safety Equipment

Lifejackets:  4

Lifesling:  1

Life rings:  2

Liferaft:  1

Epirb:  2

Mob detector:  1 (personal Epirb)

Strobe:  1

Jacklines:  2

Harnesses:  2

Float ring:  2

Covers & Cushions

Includes extra fabric for interior cushions and 3+ yds pacific blue sunbrella.

Dodger:  Hard dodger

Cockpit:  Several cushions

Bimini:  Yes

Hatches:  Yes

Mainsail:  Yes

Genoa:  Yes

Staysail:  Yes

Bug screens:  Yes

Outboard cover:  Yes

All items listed in the above list are included; items that are not in this list are not included as part of the sale.


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