Maximum cruise speed is defined as 100% of an aircraft's top speed.
Understanding Maximum Cruise Speed
Based on information from Stratos Jet Charters, maximum cruise speed represents the absolute highest speed an aircraft can sustain during level flight.
Maximum Cruise Speed vs. Typical Cruise Speed
It is crucial to differentiate maximum cruise speed from the speed aircraft typically fly at during the cruise portion of a journey.
- Maximum Cruise Speed: This is the aircraft operating at its peak potential speed in cruise. The reference notes that flying at this speed, which is 100% of its top speed, generally results in the highest fuel consumption.
- Typical Cruise Speed: As highlighted by Stratos Jet Charters, aircraft usually cruise at an average speed once they are no longer climbing. This typical cruising speed is often around 85% of the aircraft's top speed.
Pilots and airlines usually opt for typical cruise speeds rather than the maximum to optimize factors like fuel efficiency, range, and passenger comfort, unless operational requirements specifically call for maximum speed.
The definition that "Max cruise speed would be 100% of its top speed" is provided in the reference: What is understanding cruise speed - Stratos Jet Charters www.stratosjets.com › blog › cruise-speed.