AeromarineTransportConsortium

603002,Russia,NizhnyNovgorod,Sovetskayast.12;t/f.:(831)277-62-28,277-62-29;www.rdc-aqualines.ru

SEASPIRE

NAUTICALHYDROFOILBOAT

Maincharacteristics:Lengthoverall,m8.0LengthaccordingtoKVL,m8.0Overallwidth,m2.5WidthaccordingtoKVL,m1.75Staticdraft,m1.8Draftonthemove,m0.48÷0.75(dependingonthespeed)Sideheight,m1.16Displacement,t2.0Crew+passengers,people1+5Maximumspeed,knots(km/h)40(74)Seaworthiness(waveheight),m1.5Range,km120Enginepower,(diesel/petrol),hp200/250

Purposeofthevessel

Nautical taxi. Maintenance of sea passenger lines with a length of 20 ÷ 120 km. Thevesselwillcompetewithferriesduetotriplethespeedoftrafficandamoreflexiblescheduleofflights.Themostprofitableareflightswiththeextentof80÷100km,whenbusinessvisitsbyferrydonotfitintooneworkingday.

Also,theboatmaybeofinteresttofansofactivewaterrecreationasaclosedhydrocyclehydrofoil.

Theboatcreatesanewnicheofwatertransport,characterizedby:

-Highmobility,thankstosmalldimensions(auto-size);

-theabilitytotransportpassengersona1.5meterwaveataspeedof45km/hwithlivingconditions higher than classic gliding boatswith "deep V" or any otherwater vehicles atcomparablespeed;

-higheconomicindicatorsincomparisonwithallsimilarinspeedtypesofvessels;

- commercial attractiveness: the overall length of 8 m significantly reduces the cost ofparkingandmaintenanceinmostmarinasintheEuropeanUnionandinothercountries

Engine

Therearetwovariantsofengines:-dieselOXEbrandCIMCOMarineAB(Sweden)Type:TurboDieselIntercoolerWorkingvolume:2.0litersNumberofCylinders:4Thetwistingmoment:370NanometersCapacityof200hpat4300rpmWeight:300kgLengthofdeadwood:30"(762mm)-gasolineE250DPZbrandEvinrude(Canada)Type:gasoline,atmospheric,injector,V-shaped¬¬Workingvolume:3.3litersNumberofCylinders:6Power:250hpMaximumoperatingrange:4500-5800rpmWeight:240kgLengthofdeadwood:30"(762mm)

EXPECTEDPERFORMANCEOVERVIEW

RefertotheissueofcalculationoftheexpectedoperationalcostsforRDCSeaSpireseafoilboat,thefollowingfiguresemerged.

• Theexpectedfuelconsumptionperonepassenger/kilometeris0,06litersofdiesel;• ThecurrentcostofdieselinRussiais1,5USDforoneliter;• Thus,thefuelcostfor1kilometeroftravelwillbeapproximately0,01USDperonepassenger;• World statistics of the storage andmaintenance annual cost for speedboats show that thisparameterusually isabout10%oftheboatvalueperoneyearofoperation.Consequently, forSeaSpireitwillbenothigherthan$12’000peryear.Refertothecomparisonoftheperformanceofstandardspeedboat(glidinghull)andtheRDCSeaSpireseafoilboat,thefollowingfiguresemerged.

Withthesamedisplacement(2tons),andthesamelengthoftheboat(8meters),theSeaSpireboatwillneed150h.p.engine(currently,the200h.p.ischosentoprovidetheabilityforcruisingonthe1,5metershighwaves).Initsturn,theglidingspeedboatofthesamedimensionswillneed250h.p.

Thecomparativedataofperformanceispresentedinthechartbelow:

Comparedcharacteristics SEASPIRE GLIDINGSPEEDBOAT

Displacement 2tons 2tons

Lenghtoftheboat 8meters 8meters

Minimumrequiredenginepower 150h.p. 250h.p.

Levelofoverload

whilecruisingonthewaveh3%=1meter,

withthespeedv=45kmh

1,5g 9g

Fuelconsumption 25liters/hour 40liters/hour

Herewith, while cruising on the 1 meter high wave, the expected level of the overloadonboard of the Sea Spire boat (which apparentlymeans the level of passengers comfort) will beabout1,3g–1,5gwiththespeedlevelof45kmh.

For the gliding speedboat cruising on the 1meter highwave, level of the overloadwill reach 9g,whichiscomparableforthepassengertotheshakingontheextremeamusementride.

Todecreasethelevelofoverloadto1,5gtheglidingspeedboatwillhavetoreducethespeeddownto10-15kmh.Withoutreductionofspeedthesamelevelofonboardcomfortmaybeprovided

bytheglidingspeedboatwiththedisplacementof18tons,length20meters,withthehullofahighdeadrise.Suchavesselwouldrequiretheengineof2000h.p.withthefuelsconsumption250litersperhour.

For the practical analysis of expectedperformanceofthesetwotypesofboatsintermsof fast marine transport services, the existingoperational route line may be taken as theexample(Tallinn–Helsinki,BalticSea(80km).

For the analysis the sea conditions of the waveh3%=1meterarepresumed,sotheboatswillhavetomovewith the different speed to provided theappropriatepassengercomfort.

This routewill be takenbySeaSpire almost fivetimes faster than by the standard glidingspeedboat which provides additional competitiveadvantageonthemarinetransportservicemarket.

Thecomparativedataofperformanceispresentedinthechartbelow:

Comparedcharacteristics SEASPIRE GLIDINGSPEEDBOAT

Cruisingspeedontheroute

withthewaveh3%=1meter45kmh 15kmh

Timetodestination 1hour47minutes 5hours18minutes

SUMMARY:

Thus, it is evidently justified that RDC Sea Spire boat have the following expectedperformanceadvantagesinrelationtothestandardglidingspeedboat:

1. Lowerfuelconsumption;2. Highercruisingspeed;3. Higherpassengercomfortinthetoughseaconditions(uptowaveh3%=1,5meter).

Theseoperationaladvantagesallowtoclaimthatthistypeofboatmaybesuccessfullyappliedforthe various transport tasks that require high speed marine vessels: passenger and cargotransportation;searchandrescueonwater;controlandpatrollingofwaterareas.