The new FAA amendment impose an operational ceiling of ___________ on the majority of newly designed commercial aircraft.
(a) 40,000 feet
(b) 50,000 feet
(c) 45,000 feet
(d) 35,000 feet
The question was asked by my college professor while I was bunking the class.
Enquiry is from Aircraft Systems and Aviation topic in division Aircraft Systems and Aviation Overview of Aircraft Maintenance