International Aero Engines (IAE) is gearing up to build the first set of V2500-E5 turbofans for Embraer’s KC-390 multirole tanker transport as part of eventual plans to deliver around 20 engines per year.

The multinational engine maker will begin assembly in the first half of 2013 and deliver the first units in the fourth quarter. Three engines are scheduled for delivery by year’s end with a further three by the end of January 2014. Flight tests of the first aircraft are due to begin later in 2014, with production engine deliveries starting in 2015.

Embraer, which has just completed the critical design review of the aircraft, says it is on track to deliver the first units in late 2015 or early 2016. Brazil, along with Argentina, Chile, Colombia, the Czech Republic and Portugal, have issued letters of intent covering 60 aircraft.

IAE President Jon Beatty says the consortium partners are committed to a steady 20-plus year production run to support the KC-390.

The V2500E5 engine variant, which will be 95% common with the current V2500-A5 Airbus engine, will be supplied at the rate of 20 per year to support Embraer’s planned annual output of 10 KC-390s. Embraer estimates the overall potential market for the C-130-sized aircraft is around 700 units.