BoatBanter.com

BoatBanter.com (https://www.boatbanter.com/)
-   General (https://www.boatbanter.com/general/)
-   -   Twin engine docking (https://www.boatbanter.com/general/81145-twin-engine-docking.html)

John H. May 31st 07 01:19 PM

Twin engine docking
 
On Wed, 30 May 2007 20:07:24 -0400, "Eisboch" wrote:


"D.Duck" wrote in message
m...

"John H." wrote in message
...
On Wed, 30 May 2007 18:20:52 -0400, "JimH" wrote:



Push left, go left. Push right, go right. Just the opposite of a
tricycle.


Huh?


He's correct. Same on a motorcycle. Push the left handle forward, the
bike will make a left turn. Push the right handle forward, bike turns to
the right.

Try it sometime.

Eisboch


For some, that idea is very hard to conceptualize. It then catches up to
them in an emergency situation.

John H. May 31st 07 01:20 PM

Twin engine docking
 
On Thu, 31 May 2007 00:20:34 GMT, Short Wave Sportfishing
wrote:

On Wed, 30 May 2007 20:07:24 -0400, "Eisboch"
wrote:


"D.Duck" wrote in message
om...

"John H." wrote in message
...
On Wed, 30 May 2007 18:20:52 -0400, "JimH" wrote:

Push left, go left. Push right, go right. Just the opposite of a
tricycle.

Huh?


He's correct. Same on a motorcycle. Push the left handle forward, the
bike will make a left turn. Push the right handle forward, bike turns to
the right.

Try it sometime.


Ok I just did.

Pushing the left handlebar forward moves the front wheel to the right.

Pushing the right handlebar forward moves the front wheel to the left.


How much speed did you have? Remember, I said 'at speed', not at a walk or
while standing still.

John H. May 31st 07 01:21 PM

Twin engine docking
 
On Thu, 31 May 2007 00:20:34 GMT, Short Wave Sportfishing
wrote:

On Wed, 30 May 2007 20:07:24 -0400, "Eisboch"
wrote:


"D.Duck" wrote in message
om...

"John H." wrote in message
...
On Wed, 30 May 2007 18:20:52 -0400, "JimH" wrote:

Push left, go left. Push right, go right. Just the opposite of a
tricycle.

Huh?


He's correct. Same on a motorcycle. Push the left handle forward, the
bike will make a left turn. Push the right handle forward, bike turns to
the right.

Try it sometime.


Ok I just did.

Pushing the left handlebar forward moves the front wheel to the right.

Pushing the right handlebar forward moves the front wheel to the left.


PS And, you're right. The movement of the front wheel to the right causes
the bike to lean to the left, which causes the bike to turn to the left.

John H. May 31st 07 01:23 PM

Twin engine docking
 
On Wed, 30 May 2007 20:37:52 -0400, "Eisboch" wrote:


"Eisboch" wrote in message
...

"JimH" wrote in message
...

"Short Wave Sportfishing" wrote in message
...
On Wed, 30 May 2007 20:07:24 -0400, "Eisboch"
wrote:


"D.Duck" wrote in message
news:z4ednS8WPaSOkMPbnZ2dnUVZ_uSgnZ2d@giganew s.com...



Lookie her:

http://www.rider-ed.com/tips/motorcyclestability.htm

Eisboch


Meant to type "Lookie here" .... anyway, the link describes gyroscopic
progression which is why JohnH was correct.

Eisboch


It took a long time to convince Motorcycle Safety Foundation students of
the same thing. The trick was to have them steer with one hand, then the
push right - go right idea begins to stick.

John H. May 31st 07 01:25 PM

Twin engine docking
 
On 30 May 2007 18:19:01 -0700, Chuck Gould
wrote:

On May 30, 5:20?pm, Short Wave Sportfishing wrote:
On Wed, 30 May 2007 20:07:24 -0400, "Eisboch"
wrote:







"D.Duck" wrote in message
m...


"John H." wrote in message
. ..
On Wed, 30 May 2007 18:20:52 -0400, "JimH" wrote:


Push left, go left. Push right, go right. Just the opposite of a
tricycle.


Huh?


He's correct. ame on a motorcycle. Push the left handle forward, the
bike will make a left turn. ush the right handle forward, bike turns to
the right.


Try it sometime.


Ok I just did.

Pushing the left handlebar forward moves the front wheel to the right.

Pushing the right handlebar forward moves the front wheel to the left.- Hide quoted text -

- Show quoted text -


Did you take into account the shifting of your weight in order to
"push"
(down?) on the left handle bar?


The shifting of weight will lower the center of gravity, enabling a sharper
turn with less lean angle. I think Tom was just experimenting with a bike
at rest. If he had any speed on the bike, he'd be on the ground.

John H. May 31st 07 01:26 PM

Twin engine docking
 
On Wed, 30 May 2007 20:27:35 -0400, "JimH" wrote:


"Eisboch" wrote in message
m...

"D.Duck" wrote in message
...

"John H." wrote in message
...
On Wed, 30 May 2007 18:20:52 -0400, "JimH" wrote:



Push left, go left. Push right, go right. Just the opposite of a
tricycle.

Huh?


He's correct. Same on a motorcycle. Push the left handle forward, the
bike will make a left turn. Push the right handle forward, bike turns to
the right.

Try it sometime.

Eisboch


Hmmm. Actually push the left side of the handle bar away from you while
pulling the right side towards you and you go right.



Yes, if you're at walking speed. Now get up to 15mph and see what happens.

John H. May 31st 07 01:28 PM

Twin engine docking
 
On Wed, 30 May 2007 20:29:19 -0400, "Eisboch" wrote:


"JimH" wrote in message
...

"Eisboch" wrote in message
...

"D.Duck" wrote in message
...

"John H." wrote in message
...
On Wed, 30 May 2007 18:20:52 -0400, "JimH"
wrote:



Push left, go left. Push right, go right. Just the opposite of a
tricycle.

Huh?


He's correct. Same on a motorcycle. Push the left handle forward, the
bike will make a left turn. Push the right handle forward, bike turns to
the right.

Try it sometime.

Eisboch


Hmmm. Actually push the left side of the handle bar away from you while
pulling the right side towards you and you go right.


No. On a moving motorcycle, (and I assume a bicycle, although I haven't
tried it) pushing the left handle away from you will cause the motorcycle
to turn towards the left ... same side that you are pushing. Push on the
right ... bike will turn towards the right.

I can see several people are having trouble with this. Don't feel bad. So
did I until I tried it.

Eisboch


The geometry of the front end of a bicycle is very similar to that of a
motorcycle. The steering principles are the same - at speed, not at rest or
at a walking speed.

Try it, you'll like it. It's also one reason kids have a hard time
transitioning from a tricycle to a bicycle.

John H. May 31st 07 01:30 PM

Twin engine docking
 
On Wed, 30 May 2007 21:00:10 -0400, "D.Duck" wrote:


"Eisboch" wrote in message
m...

"JimH" wrote in message
...

"Eisboch" wrote in message
...

"D.Duck" wrote in message
...

"John H." wrote in message
...
On Wed, 30 May 2007 18:20:52 -0400, "JimH"
wrote:



Push left, go left. Push right, go right. Just the opposite of a
tricycle.

Huh?


He's correct. Same on a motorcycle. Push the left handle forward, the
bike will make a left turn. Push the right handle forward, bike turns
to the right.

Try it sometime.

Eisboch


Hmmm. Actually push the left side of the handle bar away from you while
pulling the right side towards you and you go right.


No. On a moving motorcycle, (and I assume a bicycle, although I haven't
tried it) pushing the left handle away from you will cause the motorcycle
to turn towards the left ... same side that you are pushing. Push on the
right ... bike will turn towards the right.

I can see several people are having trouble with this. Don't feel bad.
So did I until I tried it.

Eisboch


I've never ridden a motorcycle. But if I'm on my bicycle and I push on the
left hand handle bar, or pull on the right one (rotating the handle bars
clockwise as viewed by a bird flying by) and the bike turns right.

I still cannot comprehend how adding a motor causes the opposite.


Get the bike up to speed. Take your right hand off the handlebar, and do
the same thing. You will go left, as the bike will lean that way as soon as
you push on the left bar.

If you don't realize this, don't ride your bike in touchy situations where
you may have to suddenly swerve.

John H. May 31st 07 01:32 PM

Twin engine docking
 
On Wed, 30 May 2007 21:27:22 -0400, "JimH" wrote:


"D.Duck" wrote in message
m...

"Eisboch" wrote in message
...

"JimH" wrote in message
...

"Eisboch" wrote in message
...

"D.Duck" wrote in message
...

"John H." wrote in message
...
On Wed, 30 May 2007 18:20:52 -0400, "JimH"
wrote:



Push left, go left. Push right, go right. Just the opposite of a
tricycle.

Huh?


He's correct. Same on a motorcycle. Push the left handle forward,
the bike will make a left turn. Push the right handle forward, bike
turns to the right.

Try it sometime.

Eisboch


Hmmm. Actually push the left side of the handle bar away from you
while pulling the right side towards you and you go right.


No. On a moving motorcycle, (and I assume a bicycle, although I
haven't tried it) pushing the left handle away from you will cause the
motorcycle to turn towards the left ... same side that you are pushing.
Push on the right ... bike will turn towards the right.

I can see several people are having trouble with this. Don't feel bad.
So did I until I tried it.

Eisboch


I've never ridden a motorcycle. But if I'm on my bicycle and I push on
the left hand handle bar, or pull on the right one (rotating the handle
bars clockwise as viewed by a bird flying by) and the bike turns right.

I still cannot comprehend how adding a motor causes the opposite.


Yep. The only exception is with high speed racing motorcycles, bikes or
cars going into turns on a dirt or otherwise slippery track.

I was never talking about those conditions.

Every bicycle I ever used turned right when I pushed the left side of the
handle bar away me. Every motorcycle I ever owned did the same. Thus my
analogy in my original post.

I never thought my original post to this thread would evolve into dirt bike
racing maneuvers or disagreements on how to ride a bicycle.

'nuf said. ;-)


Guess what....you paid no attention to what your hands were doing when the
bike turned.

I believe you're the only one who mentioned dirt bikes, but the principle
is the same.

John H. May 31st 07 01:33 PM

Twin engine docking
 
On 30 May 2007 18:20:47 -0700, Chuck Gould
wrote:

On May 30, 5:29?pm, "Eisboch" wrote:
"JimH" wrote in message

...







"Eisboch" wrote in message
m...


"D.Duck" wrote in message
om...


"John H." wrote in message
...
On Wed, 30 May 2007 18:20:52 -0400, "JimH"
wrote:


Push left, go left. Push right, go right. Just the opposite of a
tricycle.


Huh?


He's correct. ame on a motorcycle. Push the left handle forward, the
bike will make a left turn. ush the right handle forward, bike turns to
the right.


Try it sometime.


Eisboch


Hmmm. Actually push the left side of the handle bar away from you while
pulling the right side towards you and you go right.


No. On a moving motorcycle, (and I assume a bicycle, although I haven't
tried it) pushing the ,eft handle away from you will cause the motorcycle
to turn towards the left ... same side that you are pushing. ush on the
right ... bike will turn towards the right.

I can see several people are having trouble with this. on't feel bad. o
did I until I tried it.

Eisboch- Hide quoted text -

- Show quoted text -


I think it has to do with the shifting of weight to the side you are
"pushing" on.


No it doesn't. Try it. Shifting the weight just enables you to turn without
as much bike lean.


All times are GMT +1. The time now is 02:15 AM.

Powered by vBulletin® Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Copyright ©2004 - 2014 BoatBanter.com