If the price is sooo low (far lower than established 100% load factor tikcet price), you won't get loadfactor undercut by having 2 planes serving the same route.
Actually i want to do that, just like in real life, one airline (e.g. Singapore Airlines) served SIN-CGK with almost all of its fleet type, from 777-200, A340-500, 777-300, 777-300ER, to 747-400 (except the A380, but maybe soon).
Just thinking, how if the "create route" function, displays what route you want to create, and how many frequencies do you want to run, and which aircraft do you want to set to the frequencies, and how many frequencies per aircraft, so that more than one plane can fly the same route for one airline without cutting each profit.
In my imagination:
Lets say you got to run a very big route like ATL-HOU. Assume you have 3 aircraft that you want to use, first is the N111DL, then N112DL, then N123DA. You create the ATL-HOU route, and say you want to have 5 flights per day. Then you'll be asked, which aircraft do you want to pick? Then you pick 3 of them, N111DL, N112DL, and N123DA. And assign each aircraft with the flight frequencies, so in total there would be 5 flights. For example, N111DL flies once, N112DL flies once, and N123DA flies thrice (or any other combinations). Let's assume that N111DL and N112DL are Boeing 737-300s and N123DA is a 757-200. Just total the number of seats times the frequencies for each of those 3 aircrafts to get the total revenue. This way you can have more realistic fleet assignment.
