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August 4, 2026
CRJ900 Delta LRCRJ900 Delta HR

CRJ900 Delta LRCRJ900 Delta HR

Regional jets are no longer a growth industry in North America, thanks to the myopic Scope Clause.  This policy has crimped new technologies from entering the market – it started with the Mitsubishi SpaceJet and Embraer E175-E2.  There are projects underway trying to break through this limit, but the graveyard of attempts grows steadily. The latest was the MaeveJet.  A promising design with novel powerplants – even though the Pratt & Whitney won’t discuss it at all.

Thinking about this conundrum led as to do an analysis of the market as it is now.  We defined four variables: Aircraft Technical Efficiency, Passenger Revenue Efficiency, Systemwide Transport Efficiency, and Total Structural Capacity Efficiency. We then created an Index combining these.


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