13-07-2019, 10:45 AM
Long term Forum addicts will recall a few years ago an interesting series of posts about Wall of Death. It was prompted by a Seven based car on wire wheels, despite the 1G side force! (Someone provided a clip of a prewar show with a lion in the sidecar!)
I presume it has been on UK TV but was here a recent programme where Guy Martin set out to break the speed record. Some science git explained how strong centrifugal force is, but most intuitively realise you can stay up at speed. The greater puzzle is the lowest speed, not explained. (At the outset Guy did not have a grasp of!) Anyway, from memory , a 40m dia circle; he attained 70 mph, 7G on the brink of blackout. (seems to calculate at somewhat less at body height, but the undulations would have increased)
There are some impressive recent shows on Youtube, including one which still uses a leaf spring Indian circa 1932
I presume it has been on UK TV but was here a recent programme where Guy Martin set out to break the speed record. Some science git explained how strong centrifugal force is, but most intuitively realise you can stay up at speed. The greater puzzle is the lowest speed, not explained. (At the outset Guy did not have a grasp of!) Anyway, from memory , a 40m dia circle; he attained 70 mph, 7G on the brink of blackout. (seems to calculate at somewhat less at body height, but the undulations would have increased)
There are some impressive recent shows on Youtube, including one which still uses a leaf spring Indian circa 1932