AdvancedPropulsionSystem
GEM423E
Week15:WaterjetPropulsion
Dr.AliCanTakinac?
AssosciateProfessor
in
TheFacultyofNavalArchitectureandOceanEngineering
34469
Maslak–Istanbul–Turkey
Contents
?WaterjetHistory
?WhatisWaterjetPropulsionSystem
?HowaWaterjetworks
?AdvantagesofWaterjet
1
WaterjetHistory
WaterjetHistory
?Intheearly1950s,whenSirWilliamHamilton
beganexperimentingwithmarinejets,he
followedtheleadofthemostsuccessful
inventiontodate,theAmericanHanleyHydrojet.
?Usingaroundcentrifugalwaterpumpthatdrew
inthewaterandexpelleditthroughasteerable
nozzleundertheboat,hewasabletoachieve
anencouragingbutunspectacularspeedof11
mileperhour.
2
?1954
?Aslightmodificationtoexpelthejetstream
abovethewaterlineprovedtheturningpointin
marinejetpropulsion,increasingspeedto
17mphandeliminatingallunderwater
appendages.
?Waterjetpropulsionwasatlasttrulysuccessful
andtheHamiltonWaterjetwasborn.
?ThisfirsttypeofunitwasnamedQuinnatand
consistedofaverticalshaftcentrifugalunit,
driventhrougharightanglegearbox.
3
?1956
?ThefirstbatchofRainbowjetunitswereproduced.
?Asmalldirectdrivecentrifugaltypeofunit,theRainbow
gaveagoodperformanceinasuitablelightcraft,without
thenoiseofagearbox.
?About125weremanufacturedandmarketedinNew
Zealand.
?1957
?ThisyearsawthebirthoftheChinookuni