AER 615 Lecture Notes - Lecture 1: Mach Number, Thrust Specific Fuel Consumption
15 Oct 2017
School
Department
Course
Professor
Document Summary
In addition to fuel costs, one may have to account for other flight operation costs, i. e. , that associated with aircraft operations and maintenance. In doing so, one may have to adjust the aircraft"s performance in cruise (typically the principal segment of a commercial flight mission). From raymer (1989), typical direct operating costs (docs) for a commercial transport include: 6 ground personnel, incl. recurring 6 25% maintenance and external depot overhaul. In addition to docs for flight operations, one may also have indirect operation costs (iocs) such as administration, sales & customer service, and depreciation of ground facilities. Actual dollar figures for docs and iocs are sometimes hard to pin down, and certainly some costs have no bearing on the aircraft"s design or its performance. Operations and maintenance costs are usually given as costs per flight hour, and therefore do explicitly have a bearing on performance. An example from mccormick (1986) for a typical commercial air transport shows a total.
