Pilots pushing wrong rudder
back to Beagle's bicycle
BEagle said:
To make a bicycle turn right, the left side of the handlebars is moved forwards.
rodthesod said:
A bit off thread perhaps but I suggest that, if you try to steer a bicycle like that, you wear a crash helmet - you will almost certainly be surprised even if you don't fall off. Remember your gyroscope rules of precession and think again.
Actually, wouldn't the gyroscopic procession be helping Beagle?
The concern should be with the centrifugal force. After the push, the procession forces acting on the front wheel will cause the bike to roll to the right. In this attitude, part of the weight will counteract the centrifugal force of his right turn.
Please, wear helmet anyways.
BM
To make a bicycle turn right, the left side of the handlebars is moved forwards.
rodthesod said:
A bit off thread perhaps but I suggest that, if you try to steer a bicycle like that, you wear a crash helmet - you will almost certainly be surprised even if you don't fall off. Remember your gyroscope rules of precession and think again.
Actually, wouldn't the gyroscopic procession be helping Beagle?
The concern should be with the centrifugal force. After the push, the procession forces acting on the front wheel will cause the bike to roll to the right. In this attitude, part of the weight will counteract the centrifugal force of his right turn.
Please, wear helmet anyways.
BM
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BM
Actually you're completely wrong about gyroscopic prEcession. Apply an external force to a gyro (spinning bicycle wheel for example) and the effect of precession is to move the gyro as if the force had been applied at a point 90 degrees removed in the direction of rotation. So pushing the left handlebar forwards will result in bank to the left - not exactly what is required for a turn to the right.
As any cyclist / motorcyclist knows you don't move the bars to steer, you shift your c of g L or R - gyros and castor angle do the rest. However if you require an emergency fast turn to the right you initiate it by pulling the left bar towards you - it's VERY effective.
rts
Actually you're completely wrong about gyroscopic prEcession. Apply an external force to a gyro (spinning bicycle wheel for example) and the effect of precession is to move the gyro as if the force had been applied at a point 90 degrees removed in the direction of rotation. So pushing the left handlebar forwards will result in bank to the left - not exactly what is required for a turn to the right.
As any cyclist / motorcyclist knows you don't move the bars to steer, you shift your c of g L or R - gyros and castor angle do the rest. However if you require an emergency fast turn to the right you initiate it by pulling the left bar towards you - it's VERY effective.
rts
