Britain's Donald Campbell - holder of the world water speed record tested the air-brakes designed for his 4-ton car 'Bluebird' at Chapel-en-le-Frith, Derbyshire, May 25, in preparation for his attempt on the whorl land speed record in September on Boneville Salt Flats, Utah, USA.
GV.EXT.Of Ferrodo works.
LV.INT.Donald Campbell sitting alongside testing machine.
STV. Donald Campbell talks, SOF STARTS "Now we are going to do a simulated stop...." ..SOF ENDS... " so here we go."
SCU. Disc brake assembly starting up on test-bed.
CU.ZOOM.In to rev counter.
SV. Campbell seated, PAN to disc brake revolving.
CU. Rev counter at 2,000 plus.
SV. Donald Campbell seated and group of people around him.
CU. Mr. Leo Villa watching.
CU. Rev counter at 2,600 revs almost.
CU. Donald Campbell PAN down to foot on brake.
CU. Disc brake slowing up and showing friction etc.
CU. Donald Campbell looking on.
CU. Disc brake showing up showing friction and flame.
SV. Disc brake stop, mechanics around it etc.
"Now we are going to do a simulated stop. two-powered stop at 425 miles per hour, at a mean point of 3g, so here we go."
EDITORS PLEASE NOTE: Prod. Nos. 3257 and 3249 show interview with Donald Campbell and engine being fitted to car-frame respectively.
Script is copyright Reuters Limited. All rights reserved
Background: Britain's Donald Campbell - holder of the world water speed record tested the air-brakes designed for his 4-ton car 'Bluebird' at Chapel-en-le-Frith, Derbyshire, May 25, in preparation for his attempt on the whorl land speed record in September on Boneville Salt Flats, Utah, USA. When he pulls up after this record attempt, air brakes built like aircraft flaps will take 100 mile per hour off the car's speed. From 400 mph downwards Campbell will depend on wheel disc-brakes like any ordinary motorist.
Seated in a skeleton cockpit for a "mock-up" test of the air-brakes, Donald Campbell said (SOF):
Campbell tested the "feel" of the brakes as the disc turned at 2,600 revolutions per minute - approximately 425 mph - it burned red-hot with the sparks as his foot was applied to the pedal. Temperature at the surface of the brake pads reached 2,200 degrees fahrenheit. There was no trace of brake fade.
The brake builders have had to provide a stopping power for Donal Campbell's right foot equivalent to that exerted by 63 drivers of ten-ton lorries all braking simultaneously at 30 mph.