Attached pictures show the seats configuration on a Houston Express flight. Houston Express is a SonAir owned charter flight operated by Atlas Air between Houston (US) and Luanda (Angola). Only Oil & Gas member companies can book tickets for its employees and not opened to the general population.
The flight has 10 First Class (A zone, 83" pitch), 108 Business Class (B/c/D zones and Upper Deck, 60" pitch), 35 Premium Economy (E zone, 60" pitch), and 36 Economy (E zone, 36" pitch) seats. The First Class are royal treatment seats so everyone knows that. The regular Economy seats are just like any other airline standard economy seats. However, the Business and Premium Economy seats are the same size (width and length). They are almost lay flat for resting as shown in attached pictures. The difference between Business and Premium Economy is Business Class has the followings extra in addition to Premium Economy:
- Lounge Access
- Menu choice of foods variety (Premium Economy and Economy have 2 choices of foods)
- More wine choices
- Better Blanket
Those additionals cost approximately $2200 USD per one way. I have traveled both in Business and Premium Economy classes so I took those pictures for illustrations.
Hope that helps.