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cirvin
Nobel Prize Winner
USA
1542 Posts |
 Posted - Sep 26 2003 : 3:56:38 PM
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never thought of thtat. like i never thought of how to stop! maybe a speed limiter is good in my case.
next stop: nobel prize winner! |
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BEatonNo1
Nobel Prize Winner
USA
1133 Posts |
Posted - Sep 26 2003 : 5:24:09 PM
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You could hook a squirl cage up to the spindle...or at least thats what i would do. however if you plan to use one built from a turbo charger, dont forget their akward shape. what about two pulse jets, they seem pretty easy to make
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Kale
Nobel Prize Winner
Canada
795 Posts |
Posted - Sep 28 2003 : 2:15:30 PM
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Your best bet for slowing down or stopping is a reversable fan like I mentioned before. Just have the blades able to tilt one way or another so you can reverse the airflow quickly. You'll find that it will stop you rather nicely. Another option is to have wheels or skids of some sort underneath the skirt. If you need to stop suddenly you can cut the power to the lift cushion and fall onto the wheels or skids. With wheels you would be able to steer better as well in an emergency since hovercrafts drift a lot when turning.
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BEatonNo1
Nobel Prize Winner
USA
1133 Posts |
Posted - Sep 28 2003 : 3:16:46 PM
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the wheels would work unless your over water, in which case i think it would be best to use a thrust reverser. you could just have two ducts and when you wanted to stop youd pull a lever that would move them into the airflow
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Nerf Smurf
Mad Scientist
USA
390 Posts |
Posted - Sep 29 2003 : 01:08:55 AM
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i think i know how i will stop it. Turn the fans off and have a large flap to come up. Or i could have 2 rudders and when i turn the power off to the thrusters the rudders will point in oppisite directions. Kinda like how a F/A 18 airplane slows down.
Edward, A. Williams Jr.
Have a Problen with that? |
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Aaron Cake
Administrator
Canada
6718 Posts |
Posted - Sep 29 2003 : 09:33:06 AM
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Stopping is very easy. Just reduce lift thrust and the skirt will drag. Not even necessary on water since the water itself poses enough of a restriction to quickly drag the speed down...
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cirvin
Nobel Prize Winner
USA
1542 Posts |
Posted - Sep 29 2003 : 8:02:17 PM
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for land, you could have "shoes" that flip down and grip the road to quickly dceleratre
next stop: nobel prize winner! |
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Nerf Smurf
Mad Scientist
USA
390 Posts |
Posted - Sep 30 2003 : 02:53:52 AM
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I cant choose. Should i build one like how i said b4, a scooter platform or just a platform with a tall joystick. With a platform with a tall joystick, when i pull back on the joystick it will pull a rope that will lift the front of the skirt, letting air out the front therefore thrusting me back. When i pust the stick 4ward ith will pull the back part of the skirt up, thrusting me 4ward. And i will do the same with the left right controls. Or should i do both designs? Well as soon as i find some airproof material and some airblower ill be on my way.
Edward, A. Williams Jr.
Have a Problen with that?
Edited by - Nerf Smurf on Sep 30 2003 02:55:31 AM |
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Aaron Cake
Administrator
Canada
6718 Posts |
Posted - Sep 30 2003 : 09:34:45 AM
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All pulling skirt will accomplish is to let your lift air out. You won't go anywhere since you won't have enough lift air to maintain a cushion...
You need to either use a valve to duct air from your lift engine out back, or another thrust engine.
And trust me, stopping is no big deal. Just reduce lift.
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BEatonNo1
Nobel Prize Winner
USA
1133 Posts |
Posted - Sep 30 2003 : 5:17:10 PM
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what I would do is use the trust diverters. when the thing is started, the diverters are in the air stream so that the forward and reverse thrust are the same. to go forwards you would pull them out to go backwards you push them all the way into the airflow. as for steering you just use a rudder
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Nerf Smurf
Mad Scientist
USA
390 Posts |
Posted - Oct 08 2003 : 01:30:03 AM
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Yea i might go with aarons idea but where will i find a matereal that is that strong. I will be having that thing to go over rough terrain. It could rip. But i relly like aarons idea. It simple.
Edward, A. Williams Jr.
Have a Problen with that? |
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cirvin
Nobel Prize Winner
USA
1542 Posts |
Posted - Oct 08 2003 : 8:09:37 PM
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if you go to a military surplus shop, you might find some usable matrial
at last!!! |
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Chamkeeper
Mad Scientist
278 Posts |
Posted - Oct 09 2003 : 02:32:18 AM
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I built a hover craft in High school ( a decade or two ago) for a science fair project. For lift, its all pressure/area. I used a gas leaf blower, (when no one knew what a leaf blower was) and a piece of plywood with a lip. The better the skirt or lip the more effiecient the lift. Start simple and go from there. You can always use two systems of air movement, one for lift one for propulsion.
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cirvin
Nobel Prize Winner
USA
1542 Posts |
Posted - Oct 09 2003 : 06:49:54 AM
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actually, around hre we can get this havy duity lathr that sems to work fine, i bt you could find some on th internt or around your area
at last!!! |
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Aaron Cake
Administrator
Canada
6718 Posts |
Posted - Oct 09 2003 : 10:10:11 AM
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Rubber shower curtain. Best skirt out there.
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Topic |
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Mini Hover Craft
