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Messages - Caoimhín

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1
>>>It was real question about leaning versus a car that keeps flat (ish) while cornering surely the forces act differently on the panniers?<<<

Yes, when we lean a bike the forces should act down through the wheels just like the forces in a banked plane. My issue is that when we start to lean the bike the panniers are initially left behind then catch up.

Coconut, let me know how you get on, assuming Triumph sell you a set of swivelling footrests so you can practice  :001:

2
>>But the issue is that these are out in the breeze.<<
Not if you believe the "Boundary layer control" hype!  :001:

The force on a plane banking, assuming proper co-ordination of controls, remains laterally central, i.e. down through the floor even though the floor might be banked. Otherwise the passengers would be plastered to the sides every turn!

3
Hi Cocunut,

Sorry, I can't agree and I think we'll just have to agree to disagree.

>>The velocity of your 150Kg Water barrels will be higher,
as they will have accelerated quicker from rest,...<<

You're making an assumption here and in fact it its not true. The acceleration will actually be slower due to the greater mass to be moved and the friction of the drums sliding on carpet. Therefore the momentum hitting the side will be lower, yet is still felt.

Your A frame suggestion is indeed more akin to the arrangement on the bike. It would actually allow the drums to accelerate more quickly by removing the friction. But once the stop is reached the force is then transferred to the frame and then the car - and is felt a moment after the event. My point exactly!

A lorry loaded with meat swinging from rails turned over on a bend nearby and crashed down a 40 foot embankment. The driver turned the wheel but the meat then swung to one side and took over events. Similarly boats have capsized and planes have crashed when loads have shifted. I repeat my view that I would prefer the load as a fixed part of the bike for me to control and for me to gain extra space released by removing the fancy stuff- and/or a lower CofG which would aid stability! But you are perfectly entitled to yours :002:

btw, I have followed your excellent slides on tupperware removal a few times now. Many thanks. I have only two bolts left over!
 

4
That wasn't well put. Read "a quarter of the weight acting on a vehicle 22% the weight". But I think you know what I mean. btw, one of the hats I wear is a licensed aircraft engineer. I had also to smile at the launch night when I heard all about 'boundary layer control'. Again, marketing. But, hey, if it works to sell 'em!!

5
Hi Cocunut,

I think you've actually agreed with me! A quarter of the weight acting on a vehicle 22% lighter will actually have a slightly greater effect. My analogy wasn't far off! The amount of movement isn't the issue. It's the fact that the movement is acting independently. (The free space in the RR is 6 inches total btw). An example of this which we've all had I'm sure is the bike veering off course when a passenger turns around to look at something!

6
*Originally Posted by Troph-@-63-FR [+]
Each his views  :016: :038: :016:

With this system, I think the movement of 5 ° is progressive, so that the mass transfer is not done feel. Also the weight of suitcases full well is very high

Agreed  :002:

The weight empty is also high. Take them all off - it's a different bike!

7
Since this thread has been re-visited let me say that after 3.5 years ownership my views have not changed. Further, let me share a similar scenario, scaled up. I fly gliders and I drive a Range Rover. I sometimes carry 150 litres of water in the back of the RR to fill the water ballast tanks in the glider. It sits in two rows of three 25 litre drums which leaves about six inches of space between the sides of the boot. When cornering the car turns then a second later I can feel the water barrels hitting the side having slid across the floor. The effect can actually be felt in a 2.8 ton vehicle. Its the same on the Triumph to a lesser extent. The simple fact is that the mass is there. If you swing the bike the mass will catch up and produce an effect out of phase with your control inputs. This could be mid corner. Not clever - as well as taking up space as I mentioned before. I think this is pure marketing.

8
New Members / Re: New Member Glenn Here
« on: October 02, 2014, 07:48:14 PM »
Hi and welcome gsnyder. You'll be having fun!

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