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1987 32 (ft.) Marlin 32 Diesel Electric S101 Submarine

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General Information

Listing# 137864

Vero Beach, FL, United States
Boat Type
Model Year
32 Diesel Electric S101 Submarine
32 (ft.)
Bridge Clearance
Hull Material
Fuel Type
Engine Model
Number of Engines
Engine Type
Engine Hours

General Details

What can you do with your own submarine Whether you want to prospect sunken treasure sites or just quietly cruise the waters' depths, experiencing the unique marine life, operating the S-101 will make you the envy of every boat owner you encounter. When you tire of this area, hitch up the trailer and take off for the crystal clear waters of Lake Tahoe, Mexico's remarkable Sea of Cortez or the Florida Keys. The underwater world awaits!

The S-101 was recently featured 6 months ago in the TV series "Graceland".

The S-101 is a versatile, multi-role 2-person diesel electric submarine that is highly autonomous and cost-effective to operate. Powered by a 50 HP diesel on the surface the submarine has a range of 200 miles, obviating the need for an ex- pensive support ship, the use of which often typifies civil submarine operations. Operation is simple with intuitive controls and F-16 style joysticks. One of the submarine's unusual characteristics is its relatively light weight, by submarine standards, which allows for launch and recovery from a large yacht or ground transportation by trailer. This submarine was originally built by U.S. Submarines' Principal Engineer for the Swedish Navy to train against Soviet mini-submarine incursions into Sweden's territorial waters. It was later sold to the Sea Shepherds Conservation Society. It was completely refit from 2000 to 2004.

Recently the submarine has made 14 test dives in Lake Washington and Puget Sound and is fully dive ready.

Run time is typically not a function of depth but of electrical power. We estimate that there is at least 8 hours battery power at depth with limited use of lights, sonar and moderate speed (the big drivers for battery power). We also estimate that there is life support (O2 and CO2 scrubber) for 72 hours per ABS regulations. Neither one of these has been tested, but we have done several multiple diving days where we have run the sub for over 8 hours (total) without needing to charge.

S101 was designed as a workboat capable of doing underwater survey or salvage work. It can easily be modified to install a manipulator arm and/or side scan sonar. It has additional room/power for more lights and more air (scuba) bottles, plus an interior payload of approximately 300 lbs. It is also designed to have a low profile with little risk of entanglement (unlike most other subs with equipment hanging off all sides) and is well protected from collision damage.

Virtually all systems on the sub are redundant. Four alternatives to surface in emergency (per ABS rules), two means of propulsion, three electrical systems, and all main valves have back-ups.

Back in the ole' days... many submarines were using a 4:1 safety factor (crush depth: max. operating depth). Today, the standard convention is 2:1. S101 was built under the old rules - collapse depth is 1,250 feet and max operating depth is 300 feet. This, and the fact that everything installed on the sub was rated to 1,000 feet, is why the seller is very comfortable that the max operating depth can be increased to around 500 feet and still have a good safety factor. The seller wouldn't want to go much beyond 500 feet but said that someone else might be willing to try it.

Please submit any and ALL offers - your offer may be accepted! Submit your offer today!

At POP Yachts, we will always provide you with a TRUE representation of every vessel we market. We encourage all buyers to schedule a survey for an independent analysis. Any offer to purchase is ALWAYS subject to satisfactory survey results.

Take a look at ALL ***551 PICTURES*** of this vessel, AND A VIDEO, on our main website at POPYACHTS DOT COM. Thank you for visiting and we look forward to speaking with you!

Stock #40442


In dive-ready condition. All systems are operational. Paint condition is average. Very little use prior to refit. Over 35 dives logged since refit. Inside storage lasts 3 years with a monthly battery charge.
Navigational Equipment
- Compass - Depth Instrument - Depth Sounder - Echo Sounder - Knotmeter - Navigation Lights - Sonar - VHF
- Bow Thruster - Cooling System - Engine Cylinders (3) - Engine Location (Aft) - Fuel Tank (10 Gallon) - Propulsion (Diesel-electric) - Starting Type (Battery) - Steering (Rudder)
Electrical Systems
- Alternator - Battery (72 VDC Main / 24 VDC Aux) - Battery Charger - Battery Location (Aft) - Circuit Breaker Panel - Night Lighting - Ship's Power (12v DC) - Shore Power - Storage Batteries - Underwater Lights - Telephone (Underwater 25 KHZ With Surface Unit Range Of 1/4 Mile)
- Ballast (Lead) - Keel Type (Lead) - Ballast (Lead) - Keel Type (Lead)
Deck Gear
- Boathook - Cockpit Lighting - Cockpit Seating (1) - Custom Cover - Fenders
Safety Equipment
- Bilge Pump - Fire Extinguisher - First Aid Kit - Flare Kit - Gas Detector - Life Jackets - Emergency Air System (72 Hrs Per Pax. (O2 Bottles Plus CO2 Scrubber))