The current game mechanism is reportedly a 15% increase in maintenance fee to all aircrafts if a 4th aircraft type is added. That does not appear to make sense - Like if an airlines operate thousands of A380, B777 and A350, how would adding a single LET into the fleet result in those A380/B777/A350 suddenly become 15% more expensive to maintenance?|
Proposal: instead of "penalty", separate aircraft maintenance fee into fixed cost and per-aircraft cost. If a single aircraft of a type is added to the game then it would immediately add a relatively large amount of fixed cost to the airline, but as the airline grow and operate more aircraft of the type, that fixed cost spread out and become more economical. (some of those fixed cost might also increase as aircraft count grow, but they grow slower) If an airline operate lots of different type, then that mean lots of different fixed cost that cannot be spread out and that mean more expensive to maintain those aircraft. However as long as those operators maintain a large enough pool of those aircraft then that won't cause any problem. I think it would be closer to reality and more realistic.
It might come with a shortcome that new players with relatively few aircraft in its fleet cannot compete with large players in term of economy. Sure it is also a reflection on reality, but this realism might be undesired. A possible workaround might be offer a discount in fixed cost for player with only one aircraft type [no wide body] and only a few of those aircraft. Alternatively these measures can also be determined by play time.