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How much air pressure, from six 1inch in diameter pipes, would it take to lift something no more then 250 pounds about six to twelve inches off the ground?P.S. This is a personal question not, homework.
I want to build a small platform that will carry small work loads such as wood or metal. (Farm purpose)Drakkith said:What is your goal? What are you building?
Sounds like you should add a skirt, like a hovercraft uses. Otherwise it will take WAY more power to lift the load that high.Builder said:I want to build a small platform that will carry small work loads such as wood or metal. (Farm purpose)
My thought was to use something like copper or aluminum pipes/tubing. I just need something simple that can easily be fixed or replaced. What kind of moter could i use to get 240 psi, with it the moter only weighing no more then thirty to forty pounds?JBA said:By 1" pipes do you mean 1" inside diameter cylinders with pistons?
Well what i thought of for design was to use nozzles to get a more forceful push of air from the exit points. Would i loss or gain psi from nozzles?fresh_42 said:I guess this is heavily depending on details of design. A Google search "hovercraft technical specifications" brought me a lot to read. Wikipedia has a nice picture of the principle behind. I was surprised, that the pipes don't press the air directly on the ground, but on a bottom plate instead.
It will probably be determined by the rubber aprons to contain the air. And stability might get a problem.
If you don't use a skirt, it won't matter whether you try to use nozzles or not. You could only use nozzles if you had a jet engine for thrust.Builder said:Well what i thought of for design was to use nozzles to get a more forceful push of air from the exit points. Would i loss or gain psi from nozzles?
What kind of moter should i use to get a constant 240psi through the system? It would also need to be mobile enough to be easily transported by hand.berkeman said:If you don't use a skirt, it won't matter whether you try to use nozzles or not. You could only use nozzles if you had a jet engine for thrust.
http://tek-think.com/wp-content/uploads/2015/08/Human-test-flight-of-a-jetpack-in-Bejing-China.jpg
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If you Google DIY Hovercraft Wheelbarrow, you will see lots of ideas. You could have wheels outside the skirt that the unit settles down on when the motor isn't running.Builder said:What kind of moter should i use to get a constant 240psi through the system? It would also need to be mobile enough to be easily transported by hand.
Well for the project I am working on i need it to get at least 200 pounds six or eight inches off of flat ground, so what kind of moter would be best for a skirted craft? (Craft is 4 foot long, 3 foot wide.)jack action said:A hovercraft (with skirt) usually don't have a pressure over 0.5 psi. The higher the pressure, the bigger the leakage, the higher the power needed.
This post might help.
Here's a hovercraft calculator:Builder said:Well for the project I am working on i need it to get at least 200 pounds six or eight inches off of flat ground, so what kind of moter would be best for a skirted craft? (Craft is 4 foot long, 3 foot wide.)
Thanksruss_watters said:Here's a hovercraft calculator:
http://www.hoverhawk.com/lcalc.html
I think you will find that your requirements are substantial -- more than you are probably expecting.
Air pressure lift is a method of lifting heavy objects using the pressure of air. It involves creating a low-pressure area above the object, which creates a pressure imbalance and allows the object to be lifted with less force.
The amount of weight that can be lifted with air pressure lift depends on the size and strength of the equipment being used. In general, an air pressure lift can lift anywhere from 250 lbs to several thousand pounds.
Air pressure lift works by creating a low-pressure area above the object to be lifted. This low-pressure area is created by using a vacuum pump or compressed air to remove air molecules from the space above the object. The resulting pressure imbalance between the top and bottom of the object allows it to be lifted with less force.
One of the main advantages of air pressure lift is that it requires less physical effort compared to traditional lifting methods. It also allows for more precise and controlled lifting, reducing the risk of injury. Additionally, air pressure lift can be used in tight spaces where traditional lifting methods may not be possible.
While air pressure lift can be a useful method for lifting heavy objects, there are some limitations to consider. It may not be suitable for lifting extremely heavy objects, as the equipment may not be strong enough to create the necessary pressure imbalance. Additionally, air pressure lift may not be effective in environments with high levels of humidity or dust, as these can affect the performance of the equipment.