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« on: April 07, 2011, 06:16:45 PM »
rajathv8
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Was inspired by VC's hovercraft so planned on making one for myself since quite a while.

I have used scrap items like "no parking" sign coro board, leftover wood at home , scrap bits of depron , diwali rocket sticks and big bazar zip ties Cheesy. So model cost is almost nil , except for hot glue maybe.

Electronics used:
Motor : CF 2812 1500 kv
Prop : 6X3
ESC : HK 18A
Radio : HK 4ch
Battery : 2200mah 3s
Servo : HXT 900

All electronics can be removed without any effort for use in other models , including the servo.

I made this just to test the principle and work on improvements. I have learnt a lot and still am.

Model is entirely made from coro. I have used small depron strips instead of cloth for skirt - it has worked well both indoors and terrace rough concrete (front part gets slightly eroded on concrete as the model touches the concrete and slides for a while when throttle is cut). Motor mount is made using teak beeding - the thrust broke the mount on first attempt itself so i have used a support strut.

I plan to make a smooth base - the rocket sticks affect air flow below so will cover it up with cardboard or something.

The video is at less than half throttle. I love the way it blows dust away when used outdoors Cheesy

Any suggestions are welcome.

Credits:
VC for posting his hovercraft for us to learn from.
Ashok for helping me acquire electronics and prop.

Video:


DSC00453.jpg
Cheap Hovercraft :D
* DSC00453.jpg (102.53 KB, 800x600 - viewed 1838 times.)
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« Reply #1 on: April 07, 2011, 06:27:54 PM »
rohitgupta322
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Wow good one  Clap Clap
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« Reply #2 on: April 07, 2011, 06:28:55 PM »
rajathv8
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Thanks Rohit Smiley
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« Reply #3 on: April 07, 2011, 06:29:40 PM »
ved
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Good Build !!!!!!!!!!
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« Reply #4 on: April 07, 2011, 06:34:10 PM »
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Great!!.  i think you can use the packing foam around the edges and bottom and it can become immortal!
Is it going straight with just throttle and no control input? Try using a gyro on the yaw, it will be more fun!
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« Reply #5 on: April 07, 2011, 06:49:01 PM »
R C
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Nice work Rajath.......
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« Reply #6 on: April 07, 2011, 07:02:53 PM »
rajathv8
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Thanks RC , ved , foamy Smiley
No its not going straight, without control input it goes in circles. Inbuilt failsafe Cheesy Need to make a lot of adjustments.
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« Reply #7 on: April 07, 2011, 07:10:17 PM »
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 Clap Clap Clap
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« Reply #8 on: April 07, 2011, 08:43:45 PM »
VC
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VC is a rising star!VC is a rising star!VC is a rising star!VC is a rising star!VC is a rising star!VC is a rising star!
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Well done!!! Would love to see more of it in action.....................
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« Reply #9 on: April 07, 2011, 10:46:23 PM »
ashJR7202
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its really very gud yar!!!
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« Reply #10 on: April 07, 2011, 10:57:21 PM »
anandp
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nice work man !!!

 Good job
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« Reply #11 on: April 07, 2011, 10:59:13 PM »
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« Reply #12 on: April 08, 2011, 12:17:06 AM »
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Thats great, keep them coming. Make a ramp and run it over the ramp onto a soft landing ofcourse, that should be fun
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« Reply #13 on: April 08, 2011, 05:39:56 AM »
iamahuman
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Good work Rajat. Smiley
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« Reply #14 on: April 08, 2011, 09:39:42 AM »
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Great Work..... Keep it up..... Smiley
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« Reply #15 on: April 08, 2011, 09:45:57 AM »
rajathv8
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Hey thanks guys Smiley
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« Reply #16 on: April 08, 2011, 02:56:06 PM »
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very nice build Smiley
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« Reply #17 on: April 08, 2011, 04:25:41 PM »
sushil_anand
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Is it actually hovering or sliding ?
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« Reply #18 on: April 08, 2011, 04:35:49 PM »
gauravag
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Exactly . I see no mechanism for generating a hover - No compressor, no skirting.
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« Reply #19 on: April 10, 2011, 07:13:03 PM »
rajathv8
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Well the model doesnt touch the floor so i guess its hovering Smiley Skirting is in the form of depron Cheesy  From the pic you can see that the cellotape is intact (blue) everywhere except the front. This is because i run it on rough concrete surface, on terrace. When ever i cut throttle the front scrapes and then it comes to a stop. In guessing this is because of battery weight which is towards the front. The entire model weight is 375gms (battery weight = 185gms).

I have cut the model into a smaller one with some modifications like a smooth base,  to be used with a much lighter battery. Waiting to go collect a dean connector from Ashok for the battery (800mah 2s). Now the model weight is 170gms+ battery weight (50gms for 800mah). Will work on it once my coll tests are done.

As of now i have broken the prop 3 times - hit the curtain. Iv fixed the same prop 3 times using feviquick Cheesy Seems to work fine but the esc heats a little - by the slightest amount. 
« Last Edit: April 10, 2011, 07:23:31 PM by rajathv8 » Logged
 

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