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Equivalents in other units


How fast is 630.2 yards per second?

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It's about nine-tenths as fast as a Jet Fighter.
In other words, 630.2 yards per second is 0.86 times the speed of a Jet Fighter, and the speed of a Jet Fighter is 1.2 times that amount.
(for Lockheed Martin F-16, a.k.a. Fighting Falcon, a.k.a. Viper) (maximum speed at altitude)
It's about one-and-a-half times as fast as a Bullet (Handgun).
In other words, the speed of a Bullet (Handgun) is 0.667 times 630.2 yards per second.
(for .40 Smith & Wesson 135 grain Sierra JHP, VV 3N37 powder, Fed. 100 primer, Remington case) (muzzle velocity)
It's about three-fifths as fast as a Bullet (Rifle).
In other words, 630.2 yards per second is 0.63 times the speed of a Bullet (Rifle), and the speed of a Bullet (Rifle) is 1.59 times that amount.
(5.56 x 45 mm, a.k.a. 5.56 NATO)
It's about one-and-two-thirds times as fast as The Speed of Sound.
In other words, the speed of The Speed of Sound is 0.595 times 630.2 yards per second.
(in dry air at 20°C)
It's about five-and-a-half times as fast as a Peregrine Falcon.
In other words, 630.2 yards per second is 5.34 times the speed of a Peregrine Falcon, and the speed of a Peregrine Falcon is 0.187 times that amount.
(a.k.a. Peregrine, a.k.a. Duck Hawk, Falco peregrinus)
It's about six times as fast as The CRH (train).
In other words, 630.2 yards per second is 5.9 times the speed of The CRH (train), and the speed of The CRH (train) is 0.17 times that amount.
(a.k.a. Hexie Hao, 和谐号, a.k.a. 和諧號, a.k.a. Héxié Hào, a.k.a. "Harmony")
It's about six-and-a-half times as fast as a Porsche 911.
In other words, the speed of a Porsche 911 is 0.159 times 630.2 yards per second.
(for Porsche 911 Type 997 GT2, 2007 model)