Noticing that there are for example both a 757-200 and a 757-200M in the aircraft list. Is there a difference in those models except for price, engines, etc.? Which one do you prefer?

No, amount ratio. Means for every F seat I'd have 6 Cs and 42Ys.

 

I also use size ratio to measure the space needed in the plane.

SF=4F, SC=2C, SY=Y (F, C, and Y are the number from the ratio. F=1, C=6, Y=42).

 

Then I make my own formula that the total number of seats for each class is the number of its ration times my desired capacity divided by a number (x) which I think should mean the space needed for each seat (but I don't know since who cares).

 

Example: Boeing 777-200 with 440 max pax

To provide legroom, I will only use 85% of the maximum capacity, so 0.85 x 440 = 374

Since I will have three classes, then SF+SC+SY = 4x1 + 6x2 + 1x42 = 58

Then I look for the (x) which (x) = 374/58 = 6.45

 

Last, I bring the (x) number to the seating ratio, then choose some closest round numbers around it. So...

F = 6.45 x 1 = 6.45 (6 seats)

C= 6.45 x 6 = 38.7 (38 to 40 seats)

Y= 6.45 x 42 = 270.8 (268 to 272 seats)

 

Another Example: Airbus A320-200 with 180 max pax

85% x 180 = 153

I'm only gonna have C and Y class so SC+SY = 6x2 + 1x42 = 54

(x) = 153/54 = 2.83

 

C = 6 x 2.83 = 17 (16-18 seats)

Y = 42 x 2.83 = 119 (118-120 seats)

 

This, obviously, is not realistic cabin config and only an effort to max profit from each class' demand.

Then, again, there's always someone with full Y seats competing for your routes so at the end of the day I always wonder why I even bother doing the counting.

Thanks, I'll try that and see if I like it!

Your credit rating increases at the end of each month (remember 1 month in AE = 24 days). The amount of increase is proportional to your net income (profit) that month.

Thanks! One month of AE time i assume and not real time?

I did a rookie mistake and took out bonds to be able to put down initial lease payments in order to increase my fleet size and expand in the early stages of the game. Now I'm in a catch 22 situation where I can't lease more planes due to my credit rating being CC. How long does it take for the credit rating to improve so that I can lease some more planes?

my ratio is 1:6:42

Are those percentage ratios? Meaning 42% of max cpacity for Y etc.?