Some models of jets have been designed to reach much higher speeds than the average of 550 mph. Typically, these planes are designed for a limited number of passengers. One example is the Gulfstream G650 from Gulfstream Aerospace, which reaches speeds of up to 904 mph. Large passenger planes, such as the Boeing 747-8, can hold up to 700 passengers and reach cruising speeds of 649 miles per hour.
Summary: 1  The American Pitbull Terrier and the American Staffordshire Terrier both belong to the molesser breed group. 2  The Pitbull is taller, heavier and more muscular than the Amstaff. 3  Pitbulls are known to be passionate, aggressive, and physically powerful.  Some pitbulls today are used as police and therapy dogs.
In 1898 the UKC, Britain's equivalent of the AKC, named these bull dogs the American Pit Bull Terrier. The AKC decided to recognize the breed in the early 1930s â but under a new name. Intending to separate it from its pit-fighting past, the AKC named it the American Staffordshire Terrier.