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  #136  
Old 01-17-2012, 10:58 AM
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yipster yipster is offline
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Quote:
Originally Posted by kach22i View Post
Just a random picture, I know nothing about it.
just random and completely inocent? thx kach, looks like a its a rare cool snowmobile at http://www.oldminibikes.com/forum/st...nowmobile.html
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  #137  
Old 01-25-2012, 06:05 AM
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yipster yipster is offline
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last night i saw on discovery "motor city motors" where jamie and dave each build a amfibious motor that can race on land and on sea..
one bike had pontoons with waterjets build in, pontoons did not swing up and where almost as low as its wheels but it rode yet could not lean
other brother build a threewheeler like i sketched before with an inboard and sort of lift-up sterndrive

thats what i made of it couse my electronic program guide switched channels
before i could see if they ever were gonna hit the water, was missing some motown music too

http://dsc.discovery.com/tv/motor-ci...amphibion.html not a movie on this episode tho
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  #138  
Old 01-25-2012, 09:16 AM
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spidennis spidennis is offline
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cool find ....
I'll have to have use a friend's dvr to record it sometime,
did away with tv a couple of years ago.
this reminds me of a past project
motorcycle cataraft ferry
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  #139  
Old 02-03-2012, 02:33 AM
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whipper whipper is offline
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The wheels, Spokes turn out and make like a paddle wheel effect on a bike. Add power and you could do it the same way but might be more effective and more performance orientated having the exhaust activate into a water jet that lowers into boat or PWC mode then couples with the drive. Even Chain driven.

You could effectivly have a 150-200 hp superbike like the Hyabusa that does over 70mph onwater also. Real simple to design. Ive designed one on paper. Looks really cool also. Ive always wanted to make one for myself but can barly afford to run my 97mph Allison GS and raise a family!!
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  #140  
Old 02-03-2012, 01:58 PM
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rwatson rwatson is offline
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Everybody wants an amphibious thingy

http://www.youtube.com/watch?NR=1&fe...&v=PL6p_ZtKJl0



how do you get a Youtube preview happening here ?
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  #141  
Old 02-03-2012, 07:14 PM
Squidly-Diddly Squidly-Diddly is offline
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Location: SF bay
here is kayak/recumbent bicycle rig.

pretty close to my lightweight moped motor version.

http://www.youtube.com/watch?v=zoSLq...eature=related

too bad his video doesn't include it in action. My question is does it go from floating to land balancing without getting out and walking it up the ramp.

However, even if you need to do that the idea still has merit, and the dismount would get you an opportunity to take off life vest and don a bike helmet, and swap your plastic flip flops for shoes with socks.

pretty easy to envision it with a 50cc moped motor, belt drive to wheels geared down from 35mph+ to under 15 mph(for more ramp climbing ability).

I'd like retracting wheels for speed in water(I imagine a 50cc motor would be plenty for any kayak), but my old mountain bike(18sp) has been ridden in sandy surf repeatedly, with sand bearing salt water all up in the gears 3ft deep and it seems none the worse for wear, so soaking bike running gear not a total disaster.


These cat-kayaks might be good starting point for recumbent or even up-ride bike-moped/kayak hybrid, and might be easy to have retractable/liftable wheels front and back and not butcher the boat in the process....and be able to just unclamp a front and back rig and be back to 'boat only'.http://www.wavewalk.com/
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  #143  
Old 03-31-2012, 06:20 PM
Squidly-Diddly Squidly-Diddly is offline
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Snowmoblie that floated at rest with 12" bike wheels along side the skis.

Have the wheels just under the skis enough to clear flat ground.

Or have twin tracks up front instead of skis.

Should be really good for making land fall on muddy shores or soft sand beaches. Not too good for any extended road touring.

How hard would it be to make a snowmobile float and be able to sit is some waves and still be boarded and engine started?
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  #144  
Old 03-31-2012, 08:37 PM
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rwatson rwatson is offline
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Quote:
Originally Posted by yipster View Post
here a few more petrol head fast quad -- v=ZhUC4qTGdHY&feature=endscreen&NR=1[/url]
http://www.youtube.com/watch?NR=1&v=...ture=endscreen
I like the way the 3rd one sinks at the end of one round
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  #145  
Old 03-31-2012, 09:20 PM
Squidly-Diddly Squidly-Diddly is offline
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why no seats and that aluminum on the back?

Is that flotation in case motor or track busts so it doesn't sink to bottom of lake?
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