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Larry Wright
New member
Username: Xljimmy
Post Number: 5
Registered: 03-2005
Posted From: 68.74.137.234
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, March 31, 2005 - 07:11 pm: | 
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Has anybody ever tried putting a water pump in their aatv for propulsion? It seems like it would work like a jet pump. I dont know what the gph would need to be but I saw one with 10,200 gph flow at 10 foot rise at 3400rpm. It needed at least 3 hp. It cost $159. It only weigh 13lb. You could run it of main engine and plumb in a intake and run the outlet out the rear. It would all be inside the aatv so nothing hanging of the rear like an outboard. Anybody know if that would work or would you need more gph flow? Other ideas. Thanks Larry |
Jerry R. Nuss
Junior Member
Username: Jerrynuss
Post Number: 15
Registered: 02-2005
Posted From: 66.20.228.174
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, March 31, 2005 - 11:04 pm: |
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I don't know why it wouldn't work.
This is for ideas:
http://www.belljar.net/jetboatdevel1.htm |
Carl Budding (Unregistered Guest)
Unregistered guest
Posted From: 64.12.116.203
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, March 31, 2005 - 10:39 pm: |
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I think that would take some rigging to get the outflow into the water in the right location. You have a suction hose which would cause drag, Maybe get caught in the wheeels. How would you steer it. It would be quite noisy. Those pumps also vibrate quite a bit. It would also be a pain to have the heat from the exhaust melting your AATV. I have used a pump similar to what your are proposing in a 12 ft jon boat and it will move you but slowly somewhat similar to a medium wind. Who knows you might be onto something or you are on something. |
Eugenekochnieff (Unregistered Guest)
Unregistered guest
Posted From: 210.49.50.24
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, April 01, 2005 - 06:33 am: |
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Hi Larry,
It will not work!
If you pick up the water from in front of your rig and spray it out the back like a fire hose you will actually get more thrust. It must spray into the air not into the water for it to work at all.
Try it with a garden hose on full blast it pushes harder into the air than if held under water. Stange but true.
How do I know?
I tried to propel a small boat this way as a boy; using a 5HP honda powered fire pump it had 90 Ft plus head with a 2" outlet and only just moved the boat if the jet was sprayed backwards into the air. |
Anonymous
Posted From: 68.156.75.15
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, April 01, 2005 - 12:56 pm: |
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The intake hose will not cause any more drag than the axles and tires already in the water. I don't think the idea is to try and get it up in plane here. Steering could be accomplished with a rudder that can be put into the water when needed and stored when not in use. The idea of the pump would work better with one of the argo machines since the back is empty and the drive unit and powerplant could be mounted in the back space. No hole would need to be put into the body tub if the intake and output are mounted properly. It will work, depending upon the amount of power and output through a pump a person wants. For supplemental propulsion a simple system could be devised. For a jet boat speed well that won't happen as long as the wheels and tires are in the water.
http://www.aquada.co.uk/gibbstech/hsaapps_humdinga.htm |
(Unregistered Guest)
Unregistered guest
Posted From: 68.74.137.234
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, April 01, 2005 - 05:42 pm: |
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If the suction is in front and outlet in rear it would pull and push. If it would for sure work them you could cut a hole in front and rear so flow is straight through. Steering could be a rutter or a 2" or 3" nozzle deal like a jet ski. If it is running off primary engine then exhaust shouldnt be a problem and maybe the tires could also steer. My goal is to assist in upstream travel without the hassle of motors hanging of the rig.
My brother had a outboard jet motor that just had an impeller that sucked from the bottom and was routed out the back. It was only about 5"-6" in diameter. It never ran so I dont know how it worked. This would be basically the same only with some plumbing so as long as the flow is enough it should work. Any other thoughts? |
Michel Duplin
New member
Username: Graphmic
Post Number: 1
Registered: 06-2004
Posted From: 67.68.146.101
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, July 07, 2005 - 12:36 pm: |
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Water cooling system plugged...
My water cooled Rotax as plugged channel in the motor (Rust or Lime).
Would it be safe to use CLR liquid as a medication for my problem ?
Does Calcium Lime Rust solution armfull to my aluminium motor ?
It seems to be only one section that is getting very hot ! |
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