[Scuba]

Originally Posted by BlackTalon

Rutting is typically a mix or substrate issue, but I do not know what special things they do for runway mixed.

Originally Posted by Chopper Dropper

...SP was originally going to pave this spring, got moved around a bit and we lost our regular October event due to repaving so were given the November dates instead... I believe that some for race tracks use a fibre in the mix to bind the lateral movement more,

Good info, thanks - that helps understand it all a bit more.

I wasn't TRYING to be a PITA or undercut anyone's expertise - even though it may have come off that way. Just curious on the details of track surface.



Once upon a time, I raced at Indianapolis Raceway Park with the drag strip front straight. As you exited the last turn onto the drag strip it was glorious sandpaper grip - unless it was raining, where the traction compound turned to snot... They'd always brief it in the rider's meeting, but that never prevented plenty of folks from ending up with broken bikes and bones because of it.

[N0tt0N]

Originally Posted by BlackTalon

some runways are asphalt, and some are concrete.

...and some are water

...and some are ice

...and some are just soil

...and some are shiny

[Scuba]

Originally Posted by BlackTalon

some runways are asphalt, and some are concrete.

...and some are water

...and some are ice

...and some are just soil

...and some are made of non-skid and great, big, brass ones.

[Chopper Dropper]

Originally Posted by BlackTalon

some runways are asphalt, and some are concrete.

...and some are water

...and some are ice

...and some are just soil

Don't need no stinking runways anyway.
Dirk

[BlackTalon]

True -- I hear you can just drop them down onto fields if the propellers/ rotors are oriented in the right direction.

I think it is called "limp landing"

[Trak Ratt]

Originally Posted by N0tt0N

...and some are shiny

You are one troubled soul boy-o! though I'm sure }{ approves the shoes

Originally Posted by Scuba

...and some are made of non-skid paint and great, big, brass ones.

Originally Posted by BlackTalon

True -- I hear you can just drop them down onto fields if the propellers/ rotors are oriented in the right direction.

I think it is called "limp landing"

AKA crashing??

[Goggles Paesano]

Said it before, but 20 or so years ago when they took the concrete out of the turns at sp, the asphalt was new and the tires of the time were peeling it right out of the corners.

[Scuba]

Originally Posted by Chopper Dropper

Don't need no stinking runways anyway.
Dirk

True.

[Trak Ratt]

Originally Posted by Goggles Paesano

Said it before, but 20 or so years ago when they took the concrete out of the turns at sp, the asphalt was new and the tires of the time were peeling it right out of the corners.

Not sure about he 20 years but if memory serves it was a crappy repave. They did a couple of spot repairs for getting it right (though only a partial repave)

[SteveST]

Originally Posted by Vicegrip

Based on past performance at summit point the grip on new stuff is good.
As said lots of personal bests on the new pavement without lots of crashes.

What he said. I ran in a NASA race at SPM in 2008 a week or two after a repave. A couple of us were trading track records back and forth all weekend. Running SP2 944 laps in the 1:25s.