14 CFR 271.3 - Carrier subsidy need.
In establishing the subsidy for an air carrier providing essential air service at an eligible place, the Department will consider the following:
(a) The reasonable projected costs of a carrier in serving that place;
(b) The carrier's reasonable projected revenues for serving that place;
(c) The appropriate size of aircraft for providing essential air service at that place; and
(d) A reasonable profit for a carrier serving that place.