Our Boat

This page contains the technical details about Nedejda (pronounced nah-DYEZH-dah) which is Russian for hope. If you are looking for more of a history we have a page dedicated to that.

Design:

She is built after the lines of the RS22 “Redningskoite” (Norwegian Rescue Boat) design by famed naval architect Colin Archer.  The original RS22 was the second purely sailing rescue ship designed by Colin Archer, she was slightly larger in all respects to the original 10 rescue ships built. It was also the last of the rescue ships to be build at Colin Archers boat yard in Larvik, Norway. The original RS22 was built in 1910 and retired to the reserves in 1940.

She has the following dimensions:

Length on Deck: 46′

Length over all: 65′

Beam: 16′

Draft: 7’8″

Gross Displacement: 30 tons

Colin Archers was genius in the field of naval architecture, some of his wave theories are still used today over a hundred years later. I know that the Nadejda is considerably more efficient than the hydrodynamic formulas dictate.  If you run the formulas for her weight and water line they tell you that it will take 55 hp to push her at 6 knots. This would translate to a fuel burn of over 3 gallons/hour; we are burning 1.5 gallons/hour which means it is only taking less than 25 hp to accomplish the 6 knot cruise.

 

Construction:

Nadejda was built in France in the late sixties. She is completely constructed of steel. Her hull is 1/4″ plate with the deck and supper structure being of 1/8″. Her hull is rounded which is fairly rare in the United States; it takes a lot of work to make a round hull steel boat. She is ballasted with lead and per the plans should have at least 20,000lbs of it.

Sail Plan:

Nadejda under full sail

Originally the RS22 was a gaff rigged ketch  Jean Almazoff who commissioned Nadejda had her changed to a Marconi/Bermuda Rig which is the more modern type rig seen on most boat today. One unusual aspect of the rig that is not seen on many boats today it her extensive boomkin that extends aft several feet allowing for the staying of the mizzen mast with out running backstays. She has two headsails and an impressive bow sprit as well.

Auxiliary Propulsion:

Detroit 6-71 similar to Nadejda’s

The Nadejda has a Detroit 6-71 diesel engine. This engine is probably older than the boat and weighs in at over 2000 lbs. It is a 2-stroke diesel utilizing a roots type super charger and a 2 valve head. In it current configuration it puts out about 150 hp and almost 600 ft-lbs of torque at 1800 RPM. This is ran through a Twin Disc 8708 (Crashbox) transmission with a 1.5:1 speed reduction. All of this mechanism runs a 28″ three bladed bronze propeller on a 60 mm stainless shaft. This set up has the reputation for being extremely tough and reliable. The old Detroit Diesels are not quite as efficient as the modern diesels but there is zero electronic on this engine to go wrong. The other nice feature on these engines is that almost all engine accessories are directly driven off the engine with no belts to go bad or slip. These engines actually have an “Accessory Case” very similar to aircraft engines allowing for many optional accessories to be ran off the back of the engine.

Tankage:

Current:

-1 150-200 gal in hull diesel tank

-1 35 gal diesel day tank

Systems:

The Nadejda currently has the following systems:

-370 watt solar array with 3 stage charge controller

-A rule bilge pump

-Hydraulic Steering

-Racor dual filters/water separators

-2 8d Gel-Cell (Starting Batteries)

-10 6v golf cart Batteries (House Bank)

-Charles C-Charger 5000 series 100 amp Batery Charger

-Isolation Transformer

-Hydraulic Windlass

Electronics: 

-Garmin Chart Plotter 3205

-Garmin Chart Plotter 4210

-Garmin Radar

-Garmin Sonar

-Garmin VHF200

-Garmin Autopilot

-AIS Receiver

-ICOM Shortwave Radio

-Handheld VHF Radio

-ACR EPIRB