hydro hoist boat lift operation?
401156
Oh yes. And what do you want to know about it.
6462
overhead lift is not possible\nusu  ots fireman carry
10784
You could be talking about a Canoe. They ride a little deeper but I have seen people with trolling motors on those.\n\nThere are Jon boats as mentioned earlier and these float high on the water and normally can be carried by 1 person. They sell one called a "Craw Dad" I believe which is VERY small.
88000
lift kit\ndon't overload it\nbigger tires\nbetter suspension
594351
check with the your accrediting group.  They will have one. Or the manufacturer of the hoist.
303535
I woud reccomend you use at least a 30+ lb. thrust ,if you using a bow mount trolling motor make sure its a newer model with a foot pedal.A minn kota hypredrive is the one i have on my boat and its been great especially in the wind.
759744
Without the math, here goes:\n\nFirst problem is the weight and dimensions of the ball - you need a heavy ball for the gravity portion of your power extraction, however you'll need a light ball (less dense than water) to achieve any power from the buoyancy. That means that if you are going to have any significant buoyancy, you will not have enough weight in the ball to refill the canister and if you have a heavy enough ball to refill the canister, it will not float. This appears to be an unsolvable condition without the addition of another external energy source.\n\nAnd if you could overcome these concerns - how would you get the ball back at the bottom of the canister once you move it over and let it fall?\n\nBe that as it may, using buoyancy and gravity (opposite forces) to produce energy is an interesting idea.
257523
Lift, thrust, gravity, drag.
240493
Depends on the type of crane.  There are tower cranes, crawlers, self-erecting crawlers, and mobile cranes to name a few.\n\nMobile cranes transport themself to the job site.  If they have a lattice boom instead of a hydraulic boom then the boom segments will be brought in on a flat bed trailer and attached to the crane.\n\nA crawler that isn't self erecting will require a second crane to help put it together.  The different pieces will come in on semi-trailors and will be lifted off of the trailers and assembled.\n\nA self-erecting crawler will have the engine and cab assembly come in on one trailer then it will actually use something to support itself as they back the tracks in under it.  Then they will put on their own counter-weights and then attatch the boom.\n\nA tower crane requires another crane on the site to erect it.  Some of the tower cranes will actually be able to add in additional sections to raise their height.\n\nAs far as removal it's the reverse of erection.  If the crane isn't self erecting then you need to bring in another crane to put it together or take it apart.
141339
These cranes are built on hydroliclifts, that lift the crane up enough to remove a section of the tower.  The lifts, then lower the crane to repeat until each section has been removed to the crane itself, which is hoisted by another crane.
1184219
an extra floatation device for added safety
140612
Yep.  A fan will do the trick, or if it's a vehicle used for a specific purpose (like carrying something from set point A to set point B) a pulley system would work.  I don't know the exact equations involved, but the fan's windpower strength should be (obviously) greater than the mass of the vehicle, and should have some kind of failsafe cutoff switch as well as a means to decrease power to the fan, for (again, obviously) safety reasons.
827110
In order to lift the water from ground level (or below) to a certain height it has to be supplied with some energy so that it moves against the gravitational pull of the earths  gravitational force.\n                                 \n                               So here a motor acts as a device which imparts energy to the fluid(water) so that it moves to a certain height.the two  most important pumps used to pump water are centrifugal pump and recipricating pump.in a reciprocating pump there will be  a piston and a cylinder where  in the piston moves inside the cylinder whereas in centrifugal pump there will be an impeller inside  a casing which rotates and inside it and imparts energy to the fluid so that it moves up.the impeller is rotated by connecting it to the motor.hence a pump is required to lift the water.\n\n                       But pump and motor are not required for drawing water because here,the water is moving in the direction of the earths gravitational   pull.here the weight of the fluid and the direction of gravitational pull are in the same direction.so the fluid will fall under its own weight.so a pump is not required.
313678
Very easy. Get some recycled cardboard and duct tape and shape it into a boat.
893748
That's a job for rEFIt:\n\nhttp://refit.sourceforge.net/\n\nYou'll find instructions on the docs section.
233488
What you are looking for is called a "curb ramp" or something along that idea.  You can find them through many places that deal in RV's or boats.  Otherwise, if you can't find them locally, you can find them through Northern Tool & Equipment.  It is item# 143095.  They are a nation wide company and will ship across the US.  They can be found online at http://www.northerntool.com or you can get in touch with them by calling 1-800-221-0516.  Good luck in your seach.
842204
The work done by the engine in lifting the object is m*g*h = 400*3.5 = 1400Joules. This the work output of the engine.\n\nNow, efficiency = (work output)/(input) * 100%\n\nTherefore, 15 = 1400/input * 100\n\ninput is thus = 140000/15 = 9333.33Joules