Jets Drives

I would appreciate any information or experience anybody has had with noise levels in jet boats, preferably over 30' or so. I ahve heard they are noisy but I know very little about how they ride, accelerate, and especially how noisy. Cheers.

 

Hi RDB,

there are all sorts of " FACTS " quoted as gospel - that on examination -
prove to be exagerations, if not outright lies.

Way back - there were drag boats - using jets, with blown 445 Buick V8
engines. - Running with open pipes.
These dragsters had so much " get up and go " - that they were handicapped when racing, one to one, with propeller driven craft.

Yes, you if you take the mufflers off a boat engine it will be NOISY.
Wether it's running with Jets OR Props.

There are plenty of Million $ Yachts and Fast Ferries using Jet Drives.
Some are very quiet.

- One of the best companies to give you practical information about real
world jet boats; is HAMILTON JET, in New Zealand.
They have been doing it........ since, forever.

 

Jet Drive Subjects

Jet Yachts
http://www.yachtforums.com/forums/general-yachting-discussion/1677-jet-yachts.html


Jet, Jet Pump, Waterjet, Jet Drive vs Prop
http://boatdesign.net/forums/showthread.php?t=11254


Jet Drive vs Prop
http://www.yachtforums.com/forums/technical-discussion/4470-jet-drive-vs-prop.html

 

Cheers, thanks for the help.

 

Nothing like the sound of a big chevy with a high lift cam breathing through 4 inch open headers "bark'n" across the water at 130 db's squirting a 200ft long roost smoken a weed whacker...Well a 14/71 blower whining on that big chevy does sound better.. Some how I have a feeling thats not what you are talking about tho?????

 

Riverjet502, man you took the words rite out of my mouth. my saying is that if its too loud, your too old.