F1technical.net

NathanOlder wrote:More importantly for the title, Jack was sticking it to Marquez real good. Shame he didnt fall like what happened to Jack in Aragon!

...and then the Marquez Crash Bros complain about Millers driving =D>

No wish to start an argument but miller crossed the line in my book.

Andres125sx wrote: ...... And there´s even another point to consider, fast direction changes, for example chicanes. Not sure if you´ve ever driven a motorcycle on a track, but the gyroscopic effect of the wheels plus the inertia of the bike due to its weight are two strong forces driver must overcome when trying to do a fast tilt change. A heavy driver can do it faster because his weight here is an advantage to move bike weight and change tilt angle

yes, but .......
the (wheel) gyroscopic effect is essentially an effect of steady cornering, not of tilt change
at least ......
changing tilt change causes a gyroscopic torque trying to yaw favourably, ie it steers the front wheel in the appropriate direction
and ......
when the bike becomes established in a corner the gyro torque becomes unfavourable, ie it acts to oppose the appropriate lean
because it is proportionate to yaw (angular velocity) and speed (but these are not independent)
so practically, for a given 'g' this gyro torque is constant regardless of the nature (speed) of the corner
importantly, this gyro torque costs eg an additional 2-4 deg of tilt (ie more than required to balance the centripetal 'g' achieved)
(2-4 deg comes from the Wilson-Jones I Mech E paper c 1948 iirc an 1960s article based on this paper)
so lighter wheels are helpful here (or a heavier bike+rider)

the favourability and unfavourability checks out with a hand-held spinning bicycle wheel

Well done old man!
Rossi gets pole in Spain, after M-M crashes out of qualifying..

Front tyre deformation under braking! How low is the tyre pressure in MotoGP usually?

In the same subject, check that video (sorry, I could only get the facebook link) and look at the rear tyre. This shows quite well camber thrust!

https://www.facebook.com/video.php?v=10152989934175769

Well, that's the 2014 season done & dusted....M-M rode a steady race to make his record 13th win,
& old man Rossi sealed 2nd in the race, & the championship..
.. after Jorge dropped out & 'dead-beat' Dani again failed to make Honda proud..

Suzuki's new effort was too slow, & poor ol' Randy didn't even make 1/2 race distance..

Now Honda has an established stranglehold on Moto G.P...
( & will they dump Dani, & try to entice Casey Stoner back - to make a race out it?)..
..will they want to do the same with WSBK..
..using this?

http://www.superbikeplanet.com/image/ar ... 3V-S_1.htm

I heard 200 something of those were made (or sold so far ? not sure). That's not enough for WSBK homologation. Needs to be 1000 IIRC. Maybe they'll make more, homologate and race it in WSBK. Surely it would be prime candidate to win the title when you add Sylvan Guintoli to the equation who has just moved to Ten Kate Honda.

Looks like Marquez and Pedrosa didn´t like 2015 bike....

Spanish new: Both Honda drivers found 2015 bike slower at some aspects

Think we should start a new thread...

I have asked mods to close this thread because the things now being tested are 2015 bikes

Unless people think that this thread should be just 'MotoGP'

I'll close the thread. It was a good year, lots of battles on the track, lots of tension. Even with the half-season dominance from MM, it was very worthwhile to watch. Very, very much looking forward to 2015! The 2015 thread is open (thanks JimClarkFan), be sure to keep posting there: http://www.f1technical.net/forum/viewto ... =5&t=20694