AIR TRANSPORT AND AIRPORTS
Small turboprop engine makers see order books lengthen as trainer demand rises
Trainer and utility aircraft programmes are competing for the same narrow engine supply base.
Aerospace Garage desk
Manufacturers of turboprop engines in the 400 to 1,200 shaft-horsepower class report order books extending well beyond historical norms. Trainer aircraft programmes in Asia and the Middle East are the main driver, alongside utility and surveillance conversions.
The supply base in this class is genuinely narrow. A handful of firms hold the certified designs, and none has spare production capacity of the sort that would absorb a step change in demand.
The consequence falls on airframers whose programme schedule assumes engine availability. Several have begun dual-sourcing studies for the first time in years.
What to watch: lead-time quotes rather than production announcements. A stated capacity increase means little until quoted lead times shorten.
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