| T.R | Title | User | Personal
Name | Date | Lines |
|---|
| 507.1 | They use big gears or high cadences | AQUA::OCONNOR | The law dont want no gear-gammer | Mon Dec 28 1987 15:55 | 9 |
| They use humungous gears 250 inches plus. However, I remember reading
a few years that Jose Meifert (sp!) spun his gears at something
like 3 revs per second. Alan Abbot and John Howard used large gears
and only had to reach about 2 revs per second. 2 revs per second
is usually about the cadence that is reached by racers at the start
of an attack.
Hope that helps to explain
Joe
|
| 507.2 | I think they use a four-wheeled vehicle | JOKUR::MITCHELL | | Mon Dec 28 1987 16:28 | 4 |
| I seem to remember seeing a photo of a speed record attempt. The
rig I remember was a car of some sort with a large shroud hanging
off the back protecting the rider from wind on three sides and from
above.
|
| 507.3 | | MENTOR::REG | | Tue Dec 29 1987 10:36 | 16 |
|
The "rules" for this have never been very clear. The record
that .0 was referring to was probably when they were limited to
what was basically a board that went behind the motorcycle, it couldn't
be any wider than the handlebars of the bike or any higher than
the highest part of the bike (usually the seat). The "spirit" of
the rule was to prohibit riders from merely getting sucked along,
but to provide reasonable (well, some) shelter from whatever the
motorcycle's wheels might kick up. Oh, I think cars weren't allowed
under those rules either, too wide.
108.?? sounds *SO* familiar, I think it may still stand as the
"unsheltered" record (Chris, come in ?)
Reg
|
| 507.4 | fster you fool | SVCRUS::CRANE | trust me, I know what I'm doing | Tue Dec 29 1987 16:05 | 20 |
|
John Howard does hold the bicycle land speed record at 152.***
MPH. He road behind a a car that was something like a dragster
but modified with large shroud on the back that acted as a very
complete windbreak for Howard.
He used a double reduction gear. Wich consisted of a large chainring
(something like 90 teeth) going to an 11 tooth small cog that was
attached to another big chainring via an axle and that large chainring
went onece more to another 11 tooth cog.
He did not use regular wheels, they were alot smaller than normal
wheels. and it seems that in one of his early runs he had a problem
with the valves on the tires. The g-force of the rotating wheels
at 120 miles an hour open the valves and deflated his tires at very
high speed causing him to pop out of a draft at over 100 miles an
hour. I have had to pop out of a draft at 40 miles an hour before
and its like hitting a wall, I can't imagine 100.
He ended up using special motorcycle valves on the tires.
John C
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