WTF? 200mph RC car on you tube

[BERGS2]

http://www.youtube.com/watch?v=T31juxlQuGA&fea...

whats going on here then?

US style oval racing for RC cars?

doesn't seem to be any real control other than maybe the throttle?

[big.eck]

well just looking at the birds in the sky i'd say it's been sped up , more like 80mph....lol

[Moreymach]

Theyre tether cars.

While that video looks a bit odd with the super fast birds the cars are able to reach quite incredible speeds. http://en.wikipedia.org/wiki/Tether_car

[Racefan_uk]

There's a circuit for those at Monza, wondered what the hell they were when I first saw them. They reach some epic speeds, 200mph I have heard is meant to be about right.

[DIW35]

big.eck said:

well just looking at the birds in the sky i'd say it's been sped up , more like 80mph....lol

I'll think you'll find that was a bee or similar just in front of the lens.

[The_Jackal]

The flags seemed to wave around at normal speed.

[slartibartfast]

that wasn't speeded up.
i wonder what RPM those engines are doing?

i've seen similar but on a much slower scale.

Paul

[tr7v8]

slartibartfast said:

that wasn't speeded up.
i wonder what RPM those engines are doing?

i've seen similar but on a much slower scale.

Paul

I suspect the small ones are doing 30-35K+ the bigger 10cc (0.61 Cu in) are probably 15-20K.
Most of these are direct drive, in other words the rear wheel(s) are directly attached to the crankshaft.
There is still a circuit for these in Mote Park Maidstone, next to the Model Engineers track.

[slartibartfast]

yeah thats how i understand it, direct drive, awsome stuff if you don't mind getting dizzy watching it LOL

[Marcellus]

These were no slouches either when I was racing them......

http://www.youtube.com/watch?v=yy-w1rXQPJE

never proven but alledged at 50+mph!

[mat205125]

Interesting, however I'm struggling to understand the point.

[Hyperion]

There is a similar thing in this country with tethered model hydroplanes on lakes.
They do it in St Albans during the August bank holiday.

They tether the boat to a pole in the centre of the lake and set the boat off going round and round.
They do travel at incredible speeds.
Some of them are steam powered, but there is no boiler. The water is fed through a coil and super heated by a propane blower. The speed theses go at is...

Edited by Hyperion on Monday 20th April 14:21