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TSATS: Speedboat


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#1 dfs473

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Posted 17 March 2012 - 11:56 AM

Hey guys :laugh:

Here is my entry for the Eurobricks Contest "To sail the Technic Sea". My MOC is RC controlled,has two M Motors and can swim. :sweet:
I have taken the two bodies from the Lego City 7244 speedboat and build a connection between them.
I think I will modifie it a bit, but here are the first pictures:
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EDIT:
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Speedboat von dfs473 auf Flickr

And here is a short video to see it in action :classic:


Hope you like it^^

Please comment

Regards dfs473

#2 apemax

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Posted 17 March 2012 - 12:21 PM

Very nice speedboat dfs473. well done. :thumbup:

#3 dfs473

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Posted 17 March 2012 - 12:25 PM

View Postapemax, on 17 March 2012 - 12:21 PM, said:

Very nice speedboat dfs473. well done. :thumbup:
Thanks :laugh:

#4 _techniclego55_

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Posted 17 March 2012 - 12:33 PM

Cool Speedboat  :thumbup:
Nice Work  :wink:

#5 efferman

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Posted 17 March 2012 - 12:42 PM

nice to see an other floating contestant. good luck
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#6 dfs473

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Posted 17 March 2012 - 12:43 PM

thank you
the same to you :laugh:

#7 Alasdair Ryan

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Posted 17 March 2012 - 02:06 PM

Nice boat.
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Updated 10/03/15
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#8 timslegos

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Posted 18 March 2012 - 01:28 AM

Nice.  Looks and works great.

tim

#9 Zblj

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Posted 18 March 2012 - 08:17 AM

Good work! Maybe using an RC motor it would be faster?

#10 VMLN8R

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Posted 18 March 2012 - 10:04 AM

View PostZblj, on 18 March 2012 - 08:17 AM, said:

Good work! Maybe using an RC motor it would be faster?

Yes, and if this is not an option, two M's or a geared up XL should do the job nicely.

#11 Tomik

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Posted 18 March 2012 - 10:44 AM

Cool floating creation. I like its design - it looks like "water tank". After watching video I think it is too slow and not very agile. Maybe it wants bigger propeller or one more...
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#12 grohl

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Posted 18 March 2012 - 01:00 PM

A bit slow, but the design looks cool.

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I know the pieces fit.


#13 dfs473

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Posted 18 March 2012 - 01:13 PM

Thank you all for the positive comments :laugh:

View Postgrohl, on 18 March 2012 - 01:00 PM, said:

A bit slow, but the design looks cool.
It weighs more then 1kg so it nedds strong motors, but the Lego Motors are not able to pull the boat on a high speed. For this you need a model-making Motor or a better propellor but this contravened the contest rules... :sceptic:
I think it is very fast in view of its weight.

Regards dfs473

Edited by dfs473, 18 March 2012 - 01:13 PM.


#14 TinkerBrick

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Posted 18 March 2012 - 04:38 PM

I like your boat. Why not try adding i cylindric housing for the propeller:
Technic Cylinder 4 x 4 x 1 2/3 with Axle Holes  - BL Part 2745

It might increase the efficiency of the propeller.

#15 Zaiocrit

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Posted 18 March 2012 - 06:38 PM

Nice !
looks like a spaceship but ... float !  :classic:

#16 dfs473

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Posted 28 March 2012 - 11:49 AM

View PostZaiocrit, on 18 March 2012 - 06:38 PM, said:

Nice !
looks like a spaceship
:laugh:
Here are two more pictures:
I have attached two Lego air tanks on the bottom and a air pump in the body
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Speedboat for EB contest von dfs473 auf Flickr

#17 timslegos

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Posted 28 March 2012 - 11:17 PM

The air tanks look great.  DO they add to the buoyancy?

tim

#18 dfs473

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Posted 29 March 2012 - 05:09 PM

View Posttimr, on 28 March 2012 - 11:17 PM, said:

The air tanks look great.  DO they add to the buoyancy?

tim
Yes :wink:

Edited by dfs473, 29 March 2012 - 05:10 PM.


#19 efferman

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Posted 29 March 2012 - 05:47 PM

why the airpump? i think it is only dead weight
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#20 DLuders

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Posted 30 March 2012 - 12:48 AM

A good mariner is always prepared for the "unexpected".  The air pump can also be used as a "bilge pump" to empty the boat during rough weather!   :classic:

#21 Lipko

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Posted 30 March 2012 - 12:35 PM

Many people think, that simply pumping air into the air tanks produce more buoyancy. That is not true. In fact, pumping more air in them makes it (insignificantly) heavier.

The only situations when it matters that you pump air in or out, is when tank can increase its size (balloon), or when a fixed size tank is filled with water and you pump it in and out (ballast). It would be nice to see a working ballast in form Lego pieces...

#22 dfs473

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Posted 31 March 2012 - 06:20 PM

I have removed the pump and maked some final photos  :laugh: , to see the technic inside.

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More Photos on Flickr.

Edited by dfs473, 31 March 2012 - 06:21 PM.


#23 Sinner

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Posted 09 April 2012 - 09:01 AM

New topic.





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