Introduction: the Science and Making of a Hovercraft

this Instructable will show you how to build your own hovercraft for less than $50. it will also show you exactly how the hover craft works.

Step 1: Materals

for this project you will need:
1 whole sheet of plywood (can be bought at lowes)
2-5 in piece of 3 1/2 in pvc pipe
1 3 1/2 in elbow joint
3 1/2 drill bit
visqueen (the stuff painters lay out before painting)
screws
paint (optional)
duct tape
drill
saw
time
entertainment (if you want)
electric or gas leaf blower
extention cord

Step 2: Build the Board

Picture of Build the Board

for the board you will cut ur plywood into 2 equle peices. once you have done that you need to drill the hole for the pvc pipe, i subjest clamping them toghther before this. and then round the edeges of the board.

Step 3: Plastic Power

Picture of Plastic Power

lay out one of the 2 pieces of the board and role out enough visqueen to tuck in between the two boards but no more than nesasary. now tuck the visqueen between the two boards and secure with screws ( dont worry if you put a hole in the visqueen and tuck the corners under too)

Step 4: Holes

Picture of Holes

befor we begin to make the holes that will allow the air to escape we need to screw a plastic lid (from a butter tub or something) to the center, this will create the air pocket. next cut holes as close to the lid as posible you will need to test it to find out how big the holes need to be

Step 5: Pvc?

Picture of Pvc?

now cut your pvc pipe to a length that will allow you to stick the blower in it and another to put on the other end so it just goes throught both layers

Step 6: Paint Time Better Get Some Visqueen

Picture of Paint Time Better Get Some Visqueen

noew u can put your little designs ans stuffon the board if you want but since i suck at art i left it blank

Step 7: Put It Together

now just conect up ur blower and ride away into the sunset
please note it works best on smooth surface

Comments

Ima_user (author)2008-01-28

Can you show the skirt design / construction? Very unclear...

scienceguy0402 (author)Ima_user2009-03-26

the skirt design isnt really that hard. what i did was sandwitch the visqueen inbetween 2 layers of plywood i made the visqueen fit to the edges snugly before screwing it down. the holes ate about 1-11/2 inches abd they should not be anny more than 2inches from the centerdisk. sry i have no photos my dogs destroyed the hovercraft

slsubzero (author)2009-03-26

Do WHAT with WHAT ! ??

conrad2468 (author)2008-07-11

yeah just use a leaf blower!

Lftndbt (author)2007-11-29

I've done this before... I prefer petrol blowervac's. 2x $80AU 1 for elevation and the second as the propulsion and direction... Build a pivot mount on the rear for steering... I don't use it, but it's still in my garage... If it was a smooth entry, I can go from sand directly onto water at around 10km/h (top speed on a long run was about 18km/h but like I said that was a long run). Very little resistance apart from the mass, wind resistance and any gasket that might be dragging depending on weighting... Mine could hold the weight of two but reduced movement dramatically... ;)

scienceguy0402 (author)Lftndbt2008-01-18

well i do to but i had a bad experance i.e i used it to transport sum stuff to my neibors house to show off half way home the engine stalled snd i couldnt get restarted so i stick with the cord

Spl1nt3rC3ll (author)2007-11-29

Ummm, yea...

You used a different power source though.

what u mean i used a leaf blower but it was electric

Sorry, I posted that after I scaned through it, but before I looked closer at the iBle.

bofthem (author)2007-11-29

This looks great. Is there a chance you could include pictures of the final thing in action? A video of the craft scooting around would also be killer.

scienceguy0402 (author)bofthem2007-12-03

well at the time i make this i didnt want to do it but i probably will soon

backcountry (author)bofthem2007-11-30

Exactly! Video proof that this thing is rideable would get me building one...

Doctor What (author)2007-11-29

You might want to change the title. It doesn't really explain the science behind it. And it's kinda been done before...

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