You only use a comma when the words you are listing are not related. Example: I needed a helmet, a safety vest, and food. Safety vest is not related to food so that's when yâ¦ou add a comma before the word and. But if it was: I needed an apple, banana and a pear- They are all related because they are all fruits= related.
Dallas/Fort Worth (DFW) Mesa operates the CRJ900 under the American Eagle banner. As the CRJ900 launch customer in 2001 and one of the largest CRJ900 operators in the world, Mesaâs experience and expertise with the aircraft is unrivaled. The 76 and 79-seat regional jets feature a two-class configuration with 9 First Class seats. Mesa's 7 new CRJ900 NextGen aircraft delivered in 2015 add the newest Bombardier technology to our fuel-efficient CRJ fleet, and feature 12 First Class seats. For information on American Eagle, go to AA.com.
The number of seats abreast is affected by the aircraft width. On very small aircraft such as the Beechcraft 1900 there are only individual seats on each side of the aisle (1+1 seating). The widest narrow body aircraft such as the Airbus A320 family and Boeing 737 aircraft have six abreast seating in a 3+3 layout.