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'Rollout' is the distance travelled by a vehicle before the timing lights on a drag strip are triggered. … can affect the final run time by up to 0.3 of a second. … important to discount this first foot of movement from the final run time, to ensure that the run time captured by the GPS data logger is as close as possible to the official ...
Bracket racing is a form of drag racing that allows for a handicap between predicted elapsed time of the two cars over a standard distance, typically within the three standard distances (1/8 mile, 1,000 foot, or 1/4 mile) of drag racing.
Although a quarter mile (1320 feet, 402 m) is the best known measure for a drag track, many tracks are eighth mile (201 m) tracks, and the premiere classes will run 1,000 foot (304.8 m) races. The race is begun from a standing start which allows three factors to affect the outcome of the race: reaction time, power/weight ratio, and traction.
Since one-foot rollout before the timer starts is used by some North American publications, times which exclude the time of the first foot of acceleration are included. [ 1 ] [ 2 ] [ 4 ] All times are independently tested and verified.
So, for example, if a route is 20 kilometres (12 mi) with 1600 metres of climb (as is the case on leg 1 of the Bob Graham Round, Keswick to Threlkeld), the equivalent flat distance of this route is 20+(1.6×8)=32.8 kilometres (20.4 mi). Assuming an individual can maintain a speed on the flat of 5 km/h, the route will take 6 hours and 34 minutes.
≡ 1 ⁄ 4 long cwt = 2 st = 28 lb av = 12.700 586 36 kg: quarter (informal) ≡ 1 ⁄ 4 short ton = 226.796 185 kg: quarter, long (informal) ≡ 1 ⁄ 4 long ton = 254.011 7272 kg: quintal (metric) q ≡ 100 kg = 100 kg scruple : s ap ≡ 20 gr = 1.295 9782 g: sheet: ≡ 1 ⁄ 700 lb av = 647.9891 mg slug; geepound: slug ≡ g 0 × 1 lb av × ...
Quarter-mile or 1 ⁄ 4 mile may refer to: A dragstrip competition or vehicle test in motorsport, where cars or motorcycles compete for the shortest time from a standing start to the end of a straight 1 ⁄ 4 mile (0.40 km) track; The 440-yard dash, a sprint footrace in track and field competition on a 440 yards (1,320 ft; 400 m; 0.25 mi) oval
When the car debuted, it had a drag coefficient of Cd=0.348, a 0–60 mph (0–97 km/h) acceleration time of 9.8 seconds and a 1 ⁄ 4 mile (400 m) time of 17.2-seconds at 80 mph (129 km/h). [ 18 ] The standard transmission for this year was the W58 5-speed manual with the A43DL 4-speed automatic transmission being an option for L-types.