Disclaimer: I have no aviation knowledge. I'm just trying to figure out the exact same thing.
Well let's see. From London (LHR) to New York (JFK), it's a maximum of 8 hours with British Airways. According to geobytes.com[] the distance between the two cities is 5572km.
That's 696.5 km/h
pitfalls with my method:
The average shorthand speed is around 80-100 words per minute. Some experienced professionals can reach speeds of 120 words per minute or more. Speed can vary depending on the individual's skill level and the complexity of the content being transcribed.
The average speed limit in the United States is typically around 55-65 mph on highways and interstates, and 25-35 mph on urban roads. However, speed limits can vary greatly depending on the specific location and road conditions.
QE2's average speed (service speed) is 28.5 knots. A more interesting fact - however - is that the average speed over her entire 39 year service life - including time spent stationary in ports or when being refitted - was around 24 knots. This speed is actually faster than most cruise ships can achieve at maximum speed. The reason for QE2 having such a high speed is in order to be capable of maintaining a 5 night transatlantic crossing schedule - she needed 28 knots for that - but she needed more to 'catch up' if delayed, or caught in a storm etc.
The average speed at which a human runs varies depending on factors such as age, fitness level, and distance. However, a common average speed for recreational runners is around 8-10 minutes per mile, while elite runners can reach speeds of around 4-5 minutes per mile.
The fish's average speed is 2 km/h, as distance divided by time gives you the speed which is 20 km / 10 hours = 2 km/h.
148knots
The speed of a commercial jetliner is around 560 miles per hour.
The first commercial jet airliner was the de Havilland Comet.
Most jetliners are used commercially.
Commercial airliner, commercial jet, more specifically, it could be a business jet (bizjet)
Max speed is 0.92 mach.
On a commercial jetliner, about 5 hours.
That is about 160 mph.
In a commercial jetliner, about 6 hours and 30 minutes.
150 knots
575 mph.
In a small aircraft, about 3 hours. In a commercial jetliner, about an 2 hours and 30 minutes.