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Author Topic: Hovercraft  (Read 7749 times)

Sub driver

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Hovercraft
« on: October 15, 2014, 12:17:25 PM »

Hi Folks.
Hopefully here are a couple of pics of some of my Hovercraft will put some more pics on if anyone is interested ?
But just a few for now so not to Bore anyone.
Regards Sub.
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Stavros

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Re: Hovercraft
« Reply #1 on: October 15, 2014, 12:20:57 PM »

Bore anyone HECK NO get them pics up NOW
 
 
Dave
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Sub driver

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Re: Hovercraft
« Reply #2 on: October 15, 2014, 12:21:08 PM »

Now the Soviet version.
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Sub driver

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Re: Hovercraft
« Reply #3 on: October 15, 2014, 12:24:19 PM »

Regards Sub.
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Sub driver

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Re: Hovercraft
« Reply #4 on: October 15, 2014, 12:31:42 PM »

Ok a couple more for now.
Thanks for looking
regards sub.
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GAZOU

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Re: Hovercraft
« Reply #5 on: October 15, 2014, 03:11:55 PM »

 :-))

Haughtiness

Up to the fifth photo I believed to see a real Hovercraft
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davidjt

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Re: Hovercraft
« Reply #6 on: October 15, 2014, 03:14:40 PM »

hi sub

brilliant hovercraft pictuers :-)), are they kits or scratch built as I have never seen anything like them can we see inside as well please, to get some idea of the construction and electrics power supply.

david
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Sub driver

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Re: Hovercraft
« Reply #7 on: October 15, 2014, 04:03:07 PM »

Hi both.
Many thx will post some more pics soon.
And they are completely scratch built from liteply and plasticard.
Regards sub.
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essex2visuvesi

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Re: Hovercraft
« Reply #8 on: October 15, 2014, 06:35:49 PM »

Stunning!
Do they run?
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TomHugill

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Re: Hovercraft
« Reply #9 on: October 15, 2014, 07:57:39 PM »

Wow that's stunning! I've always wanted a zubr. Do you have any plans or details of how it was built/powered?
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Rottweiler

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Re: Hovercraft
« Reply #10 on: October 15, 2014, 09:08:09 PM »

Thats amazing! Congratulations,and keep the photos coming? Have you any of the build,they would be very interesting to see!
Mick F
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mog10

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Re: Hovercraft
« Reply #11 on: October 15, 2014, 09:16:29 PM »

Some great pics, stunning models, well done :-))
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Sub driver

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Re: Hovercraft
« Reply #12 on: October 15, 2014, 09:39:45 PM »

Hi chaps.
Many thx for the kind coments.
Ths lcac is powered by 2  brushless motors running through a home made scratch built ball bearing raced propshafts for thrust.
Lift is provide by four double entry double exit centrifugal lift fans. these are powered by a 600 size brushed motor with a 2:1 belt drive gearbox driving the shaft on 4 ball bearing raced housings all scratch built inc the fans.
The fans are double entry ie they suck air in on both sides and expell it around the circumference which effectively gives you 8 fans 4 per side.
The zubr has 4 single entry lift fans 2 per side on brushless motors and 3 larger brushless for thrust.
Will post some more pics now there is some interest.
Regards sub.
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boneash

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Re: Hovercraft
« Reply #13 on: October 15, 2014, 09:51:10 PM »

Brilliant !!
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essex2visuvesi

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Re: Hovercraft
« Reply #14 on: October 15, 2014, 10:53:09 PM »


Will post some more pics now there is some interest.



That has to go down as understatement of the month :)


How long did they take to build?
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Sub driver

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Re: Hovercraft
« Reply #15 on: October 28, 2014, 11:05:32 AM »

Hi,
Sorry for late reply.
The LCAC took 6 Years to build and the Zubr took 2 years.

Will update with some build pics soon.
Regards
Sub.
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hama

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Re: Hovercraft
« Reply #16 on: November 05, 2014, 10:51:02 AM »

Wow!!!! :o absolutely amazing skills you have. Please make a video of them running!
All the best!
Hama
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thething84

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Re: Hovercraft
« Reply #17 on: November 10, 2014, 10:58:37 PM »

wow. the detailing on them. I was almost convinced I was looking at snap shots of the real thing till I saw someone in the pic with it. They are amazing.
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Tim_M

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Re: Hovercraft
« Reply #18 on: October 28, 2015, 08:39:30 PM »

Great, great model. I've seen your sidewall model as well, I think.

Question: Do you use centrifugal fans or do you get away with propellers for lift? One day I'm planning to build the SRN2. I want to use centrifugals but I'm not sure how to dynamically balance them. Could get noisy!
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Sub driver

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Re: Hovercraft
« Reply #19 on: November 10, 2015, 09:43:37 PM »

Hi.
The answer is both. the lcac has two double entry centrifugal fans per side ie they suck air in at the centre on both sides and expel it around the edges of each so effectively i have four fans per side equivalent of eight single fans in total.
I build them from the central drive shaft outwards then to ballance them put the shaft into a lathe chuck and i make them slightly oversize and use the lathe to turn the circumfence down a little making them concentric to the shaft....works for me then a thin coat of resin to help hold them all together very smooth on running through the ball raced geared drive shafts i made.
Regards sub.
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Tim_M

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Re: Hovercraft
« Reply #20 on: November 11, 2015, 07:22:12 PM »

Thanks for the info. Of course, it would have saved you the trouble if I'd read the thread properly.........

I think my model will need to be about 5 ft long to get any chance of stability so I will need to make a pair of sizeable fans. Maybe I will try that first!
Not starting till next year at the earliest but I will post plans when I have them.
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