STOL SYSTEM FUEL SAVINGS -- GROUND AND AIR

For intercity travel, a short take-off and landing (STOL) system with STOLports located in the proximity of the major downtown passenger traffic zones can provide a substantial savings in the fuel required for access and egress from the air terminal. Because of the use of propellers, over short haul routes (less than 500 statute miles), a present-day STOL aircraft such as the Dash 7 is more fuel-efficient than current conventional twin-engined jet aircraft. A computerized model for estimating the passenger traffic diverted to STOL from the conventional short-haul air system is described. The associated fuel savings and profitability of a STOL system are calculated. A STOL system centered on the Toronto Island Airport would attract some 1.5 million travellers from conventional take-off and landing (CTOL) by offering time savings and in most cases, cost savings too. In addition to convenience, the STOL system would save almost 5 million gallons of fuel over the alternative of a completely CTOL system, and in so doing, would operate profitably to the tune of $30 million annually in 1980. A calculation was also made for 1986 when advanced, more fuel-efficient, CTOL and STOL aircraft were assumed to be in operation. The model was used to choose the optimum of three STOL aircraft (with cruise speed designs of Mach 0.7, 0.6 and 0.5) from the point of view of fuel savings and profitability. The Mach 0.6 would appear to be an optimum choice by allowing the STOL system fuel savings of close to 7 million gallons when compared with a completely CTOL system and annual profits of $31 million.

  • Corporate Authors:

    Canadian Aeronautics and Space Institute

    77 Metcalfe Street
    Ottawa 4, ONo,   Canada 
  • Authors:
    • TOPLIS, A F
    • Nazareth, J H
  • Publication Date: 1978-9

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00190180
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: May 11 1979 12:00AM