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3. Vessel description 

Your River 350 has the following main dimensions: 
Length: 3.50 m 

Width: 1.50 m  

 
River 350 is CE approved for 3 adults in design category C. The rules describe that one adult 
can be replaced with two children, as long as each on board has a secure seat with 
something to hold on to. 
 
Construction category C - Vessel for use along the coast - (Maximum wind strength: Beaufort 
strength 6, light gale (10.8 - 13.8 m / s), maximum wave height 3.6 m).  
 
Maximum approved engine size is 15 hp (11 kW).  

NOTE! See also the engine manufacturer’s 

user manual. 

 

 
Outboard engine shaft length: 

Short 

 
Maximum number of people: 

 
Weight of boat (dry and empty): 

110 kg 

 
Weight of boat w/steering console:  125 kg 
 
Maximum load: 

              

320 kg 

 
P load + engine max: 

380 kg 

 
Draft:   

 

 

  

0,1 m 

 
 
Your River is made of high-quality polyethylene plastic. The material is very impact resistant 
and durable at normal temperatures. It is fully moulded with a tight cavity which gives the 
boat very good buoyancy. The River 350 is designed with a hybrid-hull existing of both a V-
shaped hull and catamaran-pontoons on each side, which gives the boat good planning 
properties, sporty driving characteristics and extremely good stability. 
Holes in polyethylene plastic are difficult to close as ordinary adhesive systems do not 
adhere over time. Therefore, under no circumstances should holes be made in the boat to 
install equipment yourself, without first consulting with the manufacturer. 
 
The maximum load of the boat must not be exceeded under any circumstances. 
 
The vessel is self-draining, but if manual draining is required, a ladle should be used. The 
expandable drain plug can be used to advantage with high loads to avoid water entering 
the floor. It is recommended that the boat is always left without the plug in, so that the boat 
will drain itself for shorter periods without supervision. Be aware that the insurance 
companies set their own requirements for supervision to fulfil the 

insurance’s validity. It is 

recommended to check the terms of your insurance company. 

 
 
 
 
 
 

Summary of Contents for River 350

Page 1: ...OWNER S MANUAL PRODUCER ROTOSTØP AS ADRESS ØSTKILEN 10 1621 GRESSVIK NORWAY PHONE 47 918 38 820 E MAIL post rotostop no WEB www riverboats no ...

Page 2: ......

Page 3: ...e used for design and construction assessment A B C B C B D B F G H Description of Recreational Craft Watercraft Identification Number NO RTS 3 Brand name of Recreational Craft RIVER Model 350 Type of construction Rigid Type of hull Monohull Hull construction material Other POLYETHYLENE Recreational Craft DEALER DATE AND STAMP This declaration of conformity is issued under the sole responsibility ...

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Page 5: ... parts list 3 Vessel description 4 Check before use 5 Use of the vessel 6 Towing 7 Landing lifting and transportation 8 Ordinary maintenance 9 Boat storage 10 Use of heat 11 Repairs and disposal 12 Warranty 13 Salvage fire 14 Mounting of XR kit ...

Page 6: ...tise before using the boat Please keep this manual in a secure place and hand it over to the new owner when you sell the craft Information in this publication is based upon the latest production specifications available at printing Rotostøp AS reserves the right to make changes at any time without notice in the colours equipment specifications materials and prices of all models or to discontinue m...

Page 7: ...2 Drawings parts list ...

Page 8: ...ght cavity which gives the boat very good buoyancy The River 350 is designed with a hybrid hull existing of both a V shaped hull and catamaran pontoons on each side which gives the boat good planning properties sporty driving characteristics and extremely good stability Holes in polyethylene plastic are difficult to close as ordinary adhesive systems do not adhere over time Therefore under no circ...

Page 9: ...adman switch with a string or electronic bracelet must always be used Should you fall out of the boat during speed it is vital that the boat s engine stops immediately so that it does not continue on its own and is a danger to yourself or the surroundings It is also important that it stops so that you can save yourself on board again The boat is approved and certified for self rescue without a bat...

Page 10: ...eans can be used for cleaning The plastic can withstand everything from ordinary household products to heavier solvents It is still recommended to test on a small visible field to see if discoloration or changes in the surface form Minor scratches scuffs and damage can be easily sanded down and polished up again to a nice surface The boat can be treated with a special antifouling and primer system...

Page 11: ...n your River is condemned it must be delivered to a reception for plastic waste Your dealer can assist in such a process so that everything is secured in as environmentally friendly way as possible In the future a condemned River will be a resource and possible raw material for new recycled production and thus take part in a circular economy with a minimal climate footprint 12 Warranty Your River ...

Page 12: ...14 Mounting of XR kit ...

Page 13: ...r than stated on the CE sign Always stop the engine before inspecting the propeller When the boat is in motion no one should sit on the sides of the boat In the event of an explosion or fire on board post installed fire extinguishing equipment can be used and or the vessel must be abandoned Do not drill or screw into the boat the floor or near below the waterline to install equipment yourself One ...

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