Honeywell is moving closer to certification of the new turbofan engine powering the Embraer Legacy 450 and 500 business jets.

The HTF7500E flying on Honeywell's Boeing 757 testbed has recorded 20 flights and more than 140 test hours, the company said.

Honeywell still plans to complete certification of the engine on the Embraer aircraft in 2012.

The engine "has exceeded our expectations for performance, reliability, emission reductions and sound output", said Ron Rich, Honeywell vice-president of propulsion.

Configured with four axial compressor stages, a single centrifugal compressor, an effusion-cooled combustor, the HTF7500E features the single annular combustor for emissions reduction, which is aimed at reducing nitrous oxide emissions by 25%, Honeywell said.

The turbofan is also driven by a two-stage high-pressure turbine and a three-stage low-pressure turbine.

Source: Flight Daily News