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Engine and Props.


tusker
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hello guys...........been away from the forum for a while.................looking at the Herc J model.......looks like they changed the engines and props................free turbine with a condition lever going from fuel shut off,.....Feather.....min and max RPM........just like the ATR and Dash-8 engines.........engine FADEC ....no more TD Amp...............am I right!!

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Yes, each engine has dual FADECs. However, only one is used at a time. The J has "power levers" instead of throttles without the need for condition levers. The beauty of the FADECs is that I can slam the power levers full forward, which we do for every takeoff, and never have to worry about over-temping or over-torqueing an engine. Re-synching the props and reduced power takeoffs are also not required in the J.

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FADEC = Full-Authority Digital Engine Control

Basically a computer that controls engine operation based on input from the throttle quadrant. As polcat explained, there is a single "power lever" for each engine.

Re-synching the props and reduced power takeoffs are also not required in the J.

The J could still benefit from reduced power takeoff, in terms of engine life. Unfortunately, all of the takeoff performance data is based on max power only.

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