The standard seating plan of the Airbus A319 is for 24 rows of six seats, three seats either side of a central aisle.
The standard economy configuration of the Airbus A340 is 2-4-2.
2-4-2
The Airbus A321 has 3 seats either side of it's single aisle in a typical economy seating plan. (3+3). with 33/34 rows depending on carrier. Business class, where fitted is typically 2+2. Check Seat Guru (related links) for seating plan for specific airlines/routes.
The is no set seating plan for the Airbus A340-300 series. Airlines are all different about how they want to have a seating layout. One airline may want it to be a all economy and buisness, e.g: Air France, while the other airline would like it to be economy, buisness and first class, e.g: Cathy Pacific.
Airbus do not make an aircraft designated M83. Most of their 2-aisle wide-bodied jets use a 2-4-2 economy seating plan. The smaller 1-aisle aircraft (A320) use a 3-3 economy plan.
For economy 2-4-2. Business class is often 2-2-2 or 1-2-1
The economy seats are configured as 2-4-2 on both variants of A340 operated by Virgin Atlantic. www.seatguru.com has full seating plan.
According to the Delta website, last updated Oct. 10, 2011, the most advanced Airbus that Delta operates is the 298 passenger A330-300. A link to the seating chart is available below.
The cast of Seating Plan - 2012 includes: Glen Westall as Glen
Very carefully
Does this flight have a top deck and if so what are the seating arangement