Reply
 
Thread Tools Display Modes
 
Old 11-23-2007, 04:03 PM   #21
Guru
 
Carey's Avatar
 
City: Bellingham, WA
Country: USA
Vessel Name: Happy Destiny
Vessel Model: Custom Lobster Yacht
Join Date: Oct 2007
Posts: 1,101
RE: water jet bow and stern thrusters

Marin
It appears that I owe you dinner tomorrow night after that glowing statement. However, we might have to make the change from French cuisine to French Fries, considering the high cost of diesel these days.

As long as we're talking thrusters, I'd like to point out that I have used mine, and will again. One situation where I have used it is with wind or current trying to push my bow off while landing. My thruster is rather small, and is often not up to competition with wind, so any of you contemplating a thruster would be advised to err on the side of too large, rather than too small.

My final notes on this thread would be that from my perspective, I'd prefer a hydraulic thruster if I already had a hydraulic pump, or maybe if I had other uses for one, such as a hydraulic crane motor. Hydraulics are not as obnoxiously noisy, and you can run them longer, which you might need with a stiff breeze. They also don't require all that battery power. As to the original question concerning the water jet thrusters, I have never known anyone who had such a system, but one thought that comes to mind is what would power that system, be it hydraulic or electric? Bottom line is I too would rather have some sort of thruster than none.

-- Edited by Carey at 17:07, 2007-11-23
__________________
Advertisement

Carey is offline   Reply With Quote
Old 11-23-2007, 04:49 PM   #22
Enigma
 
RT Firefly's Avatar
 
City: Slicker?
Country: Bumpkin?
Join Date: Oct 2007
Posts: 9,995
water jet bow and stern thrusters

Hello,
Carey, after you cook the french fries, you can burn the oil-what a greenie....
__________________

RT Firefly is online now   Reply With Quote
Old 11-23-2007, 05:13 PM   #23
Guru
 
Carey's Avatar
 
City: Bellingham, WA
Country: USA
Vessel Name: Happy Destiny
Vessel Model: Custom Lobster Yacht
Join Date: Oct 2007
Posts: 1,101
RE: water jet bow and stern thrusters

RTF
*** ** Whose the greenie? I didn't think of that. Good idea!
Carey is offline   Reply With Quote
Old 11-24-2007, 06:03 AM   #24
Guru
 
Keith's Avatar
 
Vessel Name: Anastasia III
Vessel Model: Krogen 42
Join Date: Oct 2007
Posts: 2,716
RE: water jet bow and stern thrusters

I have a bow thruster, use it and love it with my single engine Krogen. However, I've got to say that I still pilot the boat as a single, and the thruster is a little "lagniappe" or extra. Don't come to rely on your thruster(s) otherwise you'll forget how to handle that single... when the thruster dies on you, you'll be in trouble!

Also, someone mentioned hydraulics. No doubt I'd install that type with all kinds of hydraulic equipment if I were building a new boat. However, if you're stuck with installing an electric, Wesmar makes a continuous duty series of thrusters now that will run all day if you give them power. You'll exhaust your batteries before the thruster will quit. They came out with them about a week after I installed mine!!! Dammit.
Keith is offline   Reply With Quote
Old 11-26-2007, 02:47 AM   #25
Scraping Paint
 
Join Date: Nov 2007
Posts: 131
water jet bow and stern thrusters

So to get back to the question:

It seems like there are only 2 manufacturers of jet bow thrusters, namely Veth and Omnithrusters. These guys make a rotational/directional jet thruster.

The only company that I can find that uses small hoses with nozzles at bow and stern is the one I mentioned previously: Willdo.

The WillDo system is the only one that is affordable (about $7500 US for Willdo and $84.000 US for Omnithruster and probably the same for Veth) so this will be the type that I will compare against a normal hydraulic thruster.

Is there any system similar to WillDo to compare it against or is this product just to new?

Regards Singleprop
Singleprop is offline   Reply With Quote
Old 01-12-2008, 04:11 PM   #26
Veteran Member
 
Join Date: Oct 2007
Posts: 55
RE: water jet bow and stern thrusters

If you're dealing with a true "thruster", such as the ones used on jet skis, the discharge MUST be in air in that it's the old E = MV squared routine.* The velocity must be high to get the efficient thrust that the jet skis operate with.* Thrusters, such as the ones that we're all familiar with, operate on high mass, low velocity (relatively speaking) to provide the resultant motion.
__________________

Dark Side is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Have you added below water (underwater) stern lights? Per General Discussion 15 06-10-2011 11:31 AM
Bow Thrusters and Stern Thrusters Jay Seale Power Systems 18 04-18-2011 06:07 AM
Bow Thrusters (Cheaters) KJ Power Systems 55 12-15-2010 11:09 PM




All times are GMT -5. The time now is 08:57 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2006 - 2012