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Clay Aucoin wrote:
>
> I was just wondering if anyone has had (or even tried) making a successful
> floating boat (not using the "Boat Really Floats" pieces)?
>
> --
>
> Clay Aucoin
I've considered using empty air tanks from pneumatic LEGO sets as
sort of 'pontoons'... my one quick test of this so far was too
top-heavy (I only have three air tanks), but it seems like it
should work, as long as the floats are far enough apart and the
center of gravity of the boat is low. There is unfortunately no
dihedral effect when the boat tilts so I think it's possible the
COG has to be below the floats.
Speaking of boats, the propellers and ducts from the submarine
set work great directly driven by the new motors. I haven't made
a boat but tests in the sink indicate the boat would move fairly
fast.
E²
(Erik Eckhardt, a sometime lurker.)
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Did you check the web site first?: http://www.crynwr.com/lego-robotics
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From: Erik Eckhardt <esquared@antispam.jps.net>
> I've considered using empty air tanks from pneumatic LEGO sets as
> sort of 'pontoons'... my one quick test of this so far was too
> top-heavy (I only have three air tanks), but it seems like it
> should work, as long as the floats are far enough apart and the
> center of gravity of the boat is low. There is unfortunately no
> dihedral effect when the boat tilts so I think it's possible the
> COG has to be below the floats.
When I was a kid Lego boats came with a large keel piece which was quite
heavy (filled with iron or lead?) and effective at putting the CoG below the
water line. I don't know if the current boats come with the same piece (or
something similar), but if they do it would work well for this purpose.
alex
--
Did you check the web site first?: http://www.crynwr.com/lego-robotics
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