[pianotech] flipped truck

Mark Schecter mark at schecterpiano.com
Tue Jul 7 21:41:41 MDT 2009


If you exaggerate the situation, say to piano legs 10 feet long, it's 
easy to see that, although the piano would stand if undisturbed, the 
effect of any side pressure would be multiplied by the length of the 
legs, making the whole shebang really tippy. You could make the legs as 
long as you want, provided you increase the size of the base 
accordingly, as in moving the wheels further from each other. But if you 
maintain the same distance between the legs/wheels, higher is dangerouser.

And it wouldn't matter at all if the longer legs were part of the dolly 
instead of the piano - if the base stays the same and the supports get 
longer, the supported weight is less stable.

Flipping the truck might not get the piano high enough to be super-super 
tippy, but bumping over a door jamb might be, shall we say, unsettling. 
I vote No Way, aka Find Another Way.

-Mark Schecter

Israel Stein wrote:
>  snip
> 
> So I ask again - a piano mounted 
> on a flipped truck, the entire shebang has a much higher center of 
> gravity. So how would that affect the stability of the entire contraption? 
> 
> Israel Stein


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