Tā shì yī míng jīngyàn fēngfù de zhǎngjī fēixíngyuán.
He is an experienced lead-aircraft pilot.
Tips
usage
In military formations, 长机 is the lead/commanding aircraft and 僚机 (liáojī) is the wingman. Note 长 here is zhǎng ('chief / leader'), not cháng ('long').
mistakes
Don't read this as chángjī. The intended meaning is 'leader-aircraft', so 长 takes the zhǎng reading (as in 队长 captain, 校长 principal).