The Cirrus SR 22 has a max speed of 183 knots. That's pretty good for a small private aircraft.
That is it's maximum speed. Different for every aircraft.
The maximum speed of a DC-10 is 610mph
500 miles per hour
Unfortunately, this is much too general to answer. It completely depends on the type, manufacturer, and model of the aircraft.
The maximum speed a airplane can go is a factor of it drag and trust. All planes have a Vne speed witch is the never exceed speed, which is were the amount of drag becomes so great that it will start to damage the aircraft. Many factors have play on this number, such as the camber of the wing, form drag, induced drag, and how strong the frame is. A C-173 Vne is 169, and a SR-22 can go muck 3 or 4. Maximum speed of a airplane is around 1000 km per hour
Every aircraft has a different height, and there are so many it is impossible to say an average speed. Most airliners cruise around 580-640 mph.
This is known as the "never exceed" speed or VNE and is represented by a red line on the airspeed indicator.
Augmented maximum mechanism or in simple term after burner is incorporated to high speeds.
Cirrus SR22 flies with top speed of 405 kph.
Does aeroplane causes maximum pollution ?
Airflow ans lift over the airframe is affected by the airplane's speed.
The British Aerospace Sea Harrier FA2 variant can reach a maximum speed of 735mph; other variants are slightly slower.