UK Karting - Notice Board (General Karting) : Re: G-Forces in Karting

Notice Board (General Karting)

Re: G-Forces in Karting
Posted by 'itpro' on 27 Jan 2011 @ 10:26

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itproJoined: August 2001
Total Posts: 6
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2.7g is NOT 'high'.

What you are referring to there would be STEADY 'g'.... i.e., the amount delivered, on average, through a corner. The PEAK g can be MUCH higher on all karts.

For example, all you need to do is to arrive at a part of a corner where there's a dip in the track. The kart then slides instantaneously but then raches the end of the dip where the kart is now being force UPward. This HUGELY increases the grip available to you while the kart is being accelerated upward. Your sideways slide is halted almost instantly which delivers HUGE G Loadings. Sideways forces of 5g would not be at all surprising at that moment. The seat would then 'hit' you with a HUGE force. They are often referred to as 'transient spikes'.

That sort of 'loading' is delivered for 'an instant' and is more like a PUNCH than a long steady 'push'.

In truth, G force is not the best way to think about such instantaneous loadings.

Here's a quick description of an object falling from a known height, in Earth's Gravity. The G loading then depends on the height from which an object falls and squashy-ness of 'landing' (which is measured by the distance over which the object has time to decelerate). So....

For a stopping distance (squashy-ness) of 1cm; Drop height:-
5 cm delivers 5G
25 cm delivers 25G

Stopping distance (squashy-ness) 5cm;
Drop height:-
25 cm delivers 5G
75 cm delivers 25G.

It doesn't take a lot to generate transient Gs.

Ian

Message Thread:

G-Forces in Karting by 'DevilInside' (26 Jan 2011 @ 13:39)

Re: G-Forces in Karting by 'UHSimon' (26 Jan 2011 @ 15:26)

Re: G-Forces in Karting by 'Rickscott' (26 Jan 2011 @ 15:43)

Re: G-Forces in Karting by 'SimonS' (26 Jan 2011 @ 17:39)

Re: G-Forces in Karting by 'harvinsurrey' (27 Jan 2011 @ 8:19)

Re: G-Forces in Karting by 'itpro' << You are here!

Re: G-Forces in Karting by 'brinjono' (27 Jan 2011 @ 13:14)

Re: G-Forces in Karting by 'brinjono' (27 Jan 2011 @ 13:15)

Re: G-Forces in Karting by 'Spice' (27 Jan 2011 @ 19:16)

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