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How fast is 128 inches per minute?

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It's about one-one-thousand-five-hundredth as fast as a Skydiver (headfirst).
In other words, the speed of a Skydiver (headfirst) is 1,300 times 128 inches per minute.
(Head-to-Earth orientation or standing, average conditions, terminal velocity)
A head-to-Earth or standing-oriented skydiver's terminal velocity assuming average conditions is about 170,000 inches per minute. In a typical jump from 3,900 m (13,000 ft), a diver in this orientation will be in freefall for 46 seconds.
It's about one-one-thousand-five-hundredth as fast as a Helicopter.
In other words, 128 inches per minute is 0.000687 times the speed of a Helicopter, and the speed of a Helicopter is 1,460 times that amount.
(for AH-64A Apache, a.k.a. Hughes Model 77) (maximum cruise speed)
The AH-64 helicopter, one of the primary helicopters used by the United States Army, flies at a top cruise speed of 186,000 inches per minute. The AH-64 is the primary military helicopter of several nations including the United States, the United Kingdom, Israel, Japan, and the Netherlands.
It's about one-one-thousand-five-hundredth as fast as a Lamborghini Gallardo.
In other words, the speed of a Lamborghini Gallardo is 1,600 times 128 inches per minute.
(for Gallardo LP 550-2, a.k.a. Valentino Balboni, 2009 model)
The Lamborghini Gallardo LP550-2 model Gallardo has a top speed of 210,000 inches per minute. The Gallardo can reach speeds of 66,000 inches per minute in just 3.9 seconds.
It's about one-one-thousand-five-hundredth as fast as The TGV (train).
In other words, the speed of The TGV (train) is 1,600 times 128 inches per minute.
(Train à Grande Vitesse) (for SNCF TGV Réseau, a.k.a. "Network" model, a.k.a. TGV-R) (maximum speed)
The TGV Réseau sets have a top speed of 210,000 inches per minute. The train is capable of travelling the 425 km (264 mi) distance from Paris to Lyon in East-Central France in about two hours.
It's about one-one-thousand-five-hundredth as fast as an Arrow (archery).
In other words, 128 inches per minute is 0.0006043 times the speed of an Arrow (archery), and the speed of an Arrow (archery) is 1,655 times that amount.
(250 g arrow fired from 60#/28" bow)
A 250 gram arrow will reach speeds of approximately 211,800 inches per minute when fired from a 60-lb, 28-inch draw bow . Archeological evidence from the Ahrensburg valley near Hamburg, Germany indicates that arrows have been used since at least 11 to 12,000 years ago.
It's about one-one-thousand-five-hundredth as fast as a Porsche 911.
In other words, 128 inches per minute is 0.000593 times the speed of a Porsche 911, and the speed of a Porsche 911 is 1,690 times that amount.
(for Porsche 911 Type 997 GT2, 2007 model)
The Porsche 911 GT2 has a top speed of 216,000 inches per minute. It takes just 7.4 seconds for the GT2 to accelerate to 106,000 inches per minute.
It's about one-two-thousandth as fast as The CRH (train).
In other words, 128 inches per minute is 0.00056 times the speed of The CRH (train), and the speed of The CRH (train) is 1,800 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")
The CRH-3 train which runs on China's Beijing-Tianjin Intercity Railway are capable of speeds up to 230,000 inches per minute. Theses train can make the 120 km (74 mi) journey from Beijing to Tianjin in about 30 minutes.