Author Topic: wheel layout  (Read 4118 times)

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Offline hawkwind

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wheel layout
« on: January 17, 2006, 05:27:21 AM »
Car streamliners  allow a mimimum of 4 wheels in any configuration correct , which would allow 4 wheels in a row ( one behind the other ) which in effect would make it a single track vehicle AKA a motorcycle .A motorcycle streamliner  is limited to a minimum and maximum of 2 wheels with only one configuration , so my question is where does that leave 3 wheels and streamliners ??? sidecar streamliner ,yes but again there is only one configuration allowed , why not allow M/C streamliners the same freedom of wheel configuration as car streamliners , this would seem fair ,or is there some safety reason to disallow this ? special construction allows 3 wheels in a "trike" formation , why not streamliners , as it would make the bike streamliners statically stable and more stable in cross winds , just some thoughts looking for a reason
Gary
slower than most

Offline Malcolm UK

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wheel arrangements in others rules
« Reply #1 on: January 17, 2006, 08:10:20 AM »
In the FIA rules the four (or more) wheels in alignment for a 'car' is not allowed.  

Many car teams running the "Al Teague style"  tandem front wheels make sure that they are not on the same centre axis.  Thrust SSC with its rear wheels in tandem did not have them fully aligned.

The FIM have allowed various configurations of three wheelers because they have accommodated:
motorbikes & sidecars - two tracks, two wheels in line and the third both offset and not matching the rear wheel axis,
Cyclecars - three tracks, two powered on the same axle axis and one on the central axis.  Axle with the two wheels can then be front (think ancient Morgan) or at the rear. (Also known as a 'tricycle' or 'trike').
What about two in line with the third offset but on the same axis as the rear wheel?

and no doubt more can be made of this before you even get to thrust powered (bring on the Budweiser .....).

Just to add more options, Internationaly, close coupled wheels/tyres could be counted in the past as a single wheel.  So it may look like four but technically one pair counts as one, so back to a threewheeler.

Does the SCTA/BNI accommodate cyclecars?  Have not got a rule book to hand.  Saw a ride on trike in pictures.  

After getting the wheels right you then have to worry about the 'rider' position ........ next time?

What do you plan to build
Malcolm UK, Derby, England.

Offline RichFox

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wheel layout
« Reply #2 on: January 17, 2006, 12:56:17 PM »
Hawkwind; You might want to check out Section 4- #4.d. As I read it single track won't get it as a legal SCTA automobile streamliner.

Offline JackD

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Just for the record
« Reply #3 on: January 17, 2006, 02:02:34 PM »
Vesco took the former Kawi bike liner and put 2 aluminum wheels where the retractable skids would normally go and with an Offy it became a car.
Fueling with a FWD liner had 2 rear wheels, 1 behind the other and could remove 1 and become a 3 wheeled bike just that easy.
The Ack machine is a car with the landing wheels down and a 2 wheeled bike with them up.
The Vesco liner with the 2  six Cyl. Kawi motors was reconfigured to a 3 wheeled cycle with 2 out board wheels on the same axle in the rear and a single in the front.
Even with all of that, you still have to go fast. :wink:
"I would rather lose going fast enough to win than win going slow enough to lose."
"That horrible smell is dirty feet being held to the fire"