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Sushi RIP! 2005-2012

The Greater Rochester, NY area, otherwise known as "the Rochester Gang".

Sushi RIP! 2005-2012

Postby Bigdave » Mon Feb 20, 2012 9:25 am

It was the most spectacular model submarine run ever!! :mrgreen:
An out of control racing sub going almost full speed and bouncing off pool walls like a ping pong ball.
I hope someone got a little video.
If I did not have over $1000 invested into the boat it would have been a hoot from my standpoint. :roll:
More news and photos later.
I need to go tear down what is left and see what this cost me. :shock: :oops: :cry:
Heed my advice!! :roll: :oops: :evil:
Make sure the fail safe on your motor channel is working!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! :oops: :oops: :oops: BD.(Big Dummy)
David Welch
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Re: Sushi RIP! 2005-2012

Postby Bigdave » Mon Feb 20, 2012 2:21 pm

I found the motor mount/firewall broke free from the first impact.
Since it is a bayonet ring the water came flooding in.
I have one servo one high power BEC and one very expensive ESC so far that are trashed.
Not including the damage to the hull.
The hull damage is mostly cosmetic so far. BD.
Last edited by Bigdave on Tue Feb 21, 2012 2:04 pm, edited 1 time in total.
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Re: Sushi RIP! 2005-2012

Postby Greg W » Mon Feb 20, 2012 6:16 pm

All I can say is that sushi was just an underwater yellow blur.Did you call your shot "8 ball side pocket :D I have never seen a sub move that fast before. I think we need a bigger pool.I hope she will live to run again. Greg
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Re: Sushi RIP! 2005-2012

Postby donO » Mon Feb 20, 2012 9:46 pm

Here's some pics


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Don Osler

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Re: Sushi RIP! 2005-2012

Postby Bigdave » Tue Feb 21, 2012 2:10 pm

BTW-In the one photo you can see Greg's old balloon busting boat (After U) which he mounted a video camera in what looks like a gun mount on the bow.
He can rotate the mount and change the elevation from the radio.
Then drive the boat seeing what a driver would see. Very cool!! BD. 8)
Last edited by Bigdave on Tue Feb 21, 2012 5:53 pm, edited 1 time in total.
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Re: Sushi RIP! 2005-2012

Postby Thor » Tue Feb 21, 2012 3:21 pm

Better get 'er fixed, Dave! I have my money on you for the first annual drag race at Carmel!

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Re: Sushi RIP! 2005-2012

Postby Crazy Ivan » Tue Feb 21, 2012 11:32 pm

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George "Crazy Ivan" Protchenko
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Re: Sushi RIP! 2005-2012

Postby Pirate » Wed Feb 22, 2012 1:17 pm

Ahhh... I recognize the new pumpjet on that Sushi. Apparently it worked very well—almost too well?
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Re: Sushi RIP! 2005-2012

Postby Bigdave » Wed Feb 22, 2012 4:04 pm

You do great work Pete!
I got the old PJ from Don.
I was amazed how much thrust it put out. :wink:
And the cool factor is well, COOL!! 8) :mrgreen:
The 700BB turbo running at 14.8V helps too. :lol: BD.
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Re: Sushi RIP! 2005-2012

Postby Pirate » Fri Feb 24, 2012 1:27 am

On that little hull I'd say you were lucky Sushi didn't disintegrate on impact with the thrust pumpjets put out.

When I tested my latest iteration in the bath tub, the new one I sent Don, in water only six inches deep it pushed a wake of water up the end of the tub about a foot up the wall, and then held it there at the top edge of the tub constantly! They are truly amazing.

Hope you can rehab Sushi. I'd like to see it run in person at Carmel.
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Re: Sushi RIP! 2005-2012

Postby Sub culture » Fri Feb 24, 2012 6:31 am

Tough little boat.

If you need a new ESC, I can't recommend these highly enough. A true 25A continuous at up to 26 volts, small footprint and the price is great. Built in programmable failsafe, with up to 2 second cut-in specially designed for submarines to prevent unwanted glitching.

http://www.microgyros.com
'Why are you staring at an empty pond?'

Want to dive your boat in crystal clear water? Then you had better Dive-in- http://www.diveintomodelsubmarines.co.uk
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Re: Sushi RIP! 2005-2012

Postby Bigdave » Fri Feb 24, 2012 9:36 am

I actually have one of them Andy. :D
Mike's products are great. 8)
The only thing is the ESC I had was a 160AMP unit and I would fry Mike's I fear. :shock:
I am getting it repaired now. The sub and tech rack are built around the ESC so I would like to stick with the MCD.
It is water cooled as well which is needed in the small sub volume.
BTW-It is a tough boat. Not a crack in the hull after many impacts.
But the G force cracked the motor firewall away from it's epoxy. :cry: :cry:
But I was able to fix it. Not easy with the ring installed as it made removal of the motor firewall impossible. BD.
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Re: Sushi RIP! 2005-2012

Postby Sub culture » Fri Feb 24, 2012 12:26 pm

Bigdave wrote:I actually have one of them Andy. :D
Mike's products are great. 8)
The only thing is the ESC I had was a 160AMP unit and I would fry Mike's I fear. :shock:


They're thermally protected against overload, so you shouldn't have a problem.
'Why are you staring at an empty pond?'

Want to dive your boat in crystal clear water? Then you had better Dive-in- http://www.diveintomodelsubmarines.co.uk
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Re: Sushi RIP! 2005-2012

Postby Bigdave » Fri Feb 24, 2012 2:34 pm

Even if it survived the current it would keep shutting off when it exceeded the limit of the ESC.
Which would be pretty much all the time. BD.
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Re: Sushi RIP! 2005-2012

Postby Sub culture » Sat Feb 25, 2012 4:51 am

There are three 700BB turbo models in the Graupner range. Not sure which one you have, but I wouldn't expect anyone of them to push the controller to thermal shutdown unless the motor is badly matched to the prop and seriously bogging down as a result.
'Why are you staring at an empty pond?'

Want to dive your boat in crystal clear water? Then you had better Dive-in- http://www.diveintomodelsubmarines.co.uk
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