Posted by sean_q_ on July 8, 2010, 4:28 pm
tomorrow@erols.com wrote:
> BZZZT. Wrong. Having "flown" the car on both sidecar rigs I've
> owned, once the sidecar is in the air, and as long as it is in the
> air, the motorcycle steers via counter-steering (albeit quite
> awkwardly). It should be intuitively obvious, bit if it isn't to you,
> just try it - it will be very obvious upon practical application.
I don't want to try this, but there's something I think
I should know... Assuming the chair on the right, if I make
a left turn hard enough to capsize the rig, intuitively
I'd think it would roll around the axis between the front wheel
and sidecar wheel contact patches. Is that correct?
SQ
Posted by Vito on July 8, 2010, 5:24 pm
tomorrow@erols.com wrote:
> BZZZT. Wrong. Having "flown" the car on both sidecar rigs I've
> owned, once the sidecar is in the air, and as long as it is in the
> air, the motorcycle steers via counter-steering (albeit quite
> awkwardly). It should be intuitively obvious, bit if it isn't to you,
> just try it - it will be very obvious upon practical application.
Yes! I can attest to that having accidentally "flown" a sidecar - once!
Never again!
Posted by Stephen! on July 8, 2010, 1:18 am
> However, it gets more even more paradoxical. The turn
> (and the lean) to the left would be by counter-steering --
> ie, turning right -- towards the chair! But then,
> why wouldn't it just turn that way?
Did you counter-steer your tricycle?
--
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IBA# 11465
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Posted by Vito on July 8, 2010, 7:18 am
| Imagine an extremely lightweight (but very strong) sidecar
| mounted on the right-hand side of the bike (meaning
| no offence to Brits, Kiwis, Ozzies, Sri Lankans and others).
|
| Make a hard left turn; the chair lifts because it lacks
| enough weight to keep the bike from leaning into the turn.
I don't think so. A bike must be forced to lean, either by 'body english'
or counter-steering.
Posted by Twibil on July 8, 2010, 1:55 pm
> I don't think so. A bike must be forced to lean, either by 'body english'
> or counter-steering.
Oh dear.
Note: Left to it's own devices, a non-sidecar bike will fall right
over. And this is equally true whether said bike is moving or at rest.
It's only the kickstand when at rest, or the rider's constant
corrections when moving, that keep it upright.
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> owned, once the sidecar is in the air, and as long as it is in the
> air, the motorcycle steers via counter-steering (albeit quite
> awkwardly). It should be intuitively obvious, bit if it isn't to you,
> just try it - it will be very obvious upon practical application.