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Conklin & de Decker

This guide describes the type of data and information that can be found using the Conklin & de Decker Report (formerly Aircraft Cost Evaluator and the Aircraft Performance Comparator) as well as citation information for citing this resource.

Aircraft Cost Evaluator

The Conklin & de Decker Aircraft Cost Evaluator is now Conklin & de Decker Report.  The new product still provides operating cost data for more than 500 aircraft including Jets, Turboprops, Helicopters, and Pistons, but also now includes more detailed performance and specification data.  Using the Conklin & de Decker Report you have access to the following:

  • Direct Costs, fixed costs, & annual budget data
  • Fractional aircraft ownership data
  • Relative aircraft operating costs and performance comparisons
  • Quick cost comparisons for up to 3 aircraft at one time
  • Input local costs, salaries, currencies, measurements and more 
  • Narrow your aircraft selection to meet specific criteria
  • Export reports to a variety of formats

For a detailed list of operating and variable costs, contact Ask a Librarian with your make and model of aircraft. 

Commercial Aircraft

  • AVITAS Aircraft Block Hour Operating Costs and Operations, 2022 - . Organized by aircraft and then airline.  Cargo and turboprop aircraft also included. (ERNIE login required)
  • Select commercial aircraft block hour operating costs (historical only) can be located in April/October print issues of Airline Monitor (now defunct). Contact Ask a Librarian with your make and model so that pages can be scanned and sent to you.
  • Additionally, quarterly aircraft operating expenses for large certificated U.S. air carriers can be downloaded from Transtats using Form 41 Schedule P-5.2.  Aircraft operating expenses for large and medium regional air carriers, use Schedule P-5.1.                     

    You will need to know your aircraft ID code to find your aircraft in the downloaded data.  Aircraft Codes can be found by following these steps:  
  1. Go to the Bureau of Transportation Statistics website
  2. Scroll down to the Aircraft Information section
  3. In the third row click on the AircraftType. Click on Next at the top or bottom of the chart to see the rest of the aircraft listing.
  4. The aircraft ID number is the first column, Code.  For example, Boeing Max 8 = 838.

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