Compressor stalls

[ReportCanoa]

How damaging are compressor stalls on application of takeoff power? Rumor has it a certain captain likes to "floor it" off the line, and these poor engines are backfiring, not able to keep up with the sudden demand. It seems to me this is purely flagrant abuse of these nice new CF34's. I'd like to have a talk with this guy...

 

[banned username 2]

Compressor stalls can be very damaging to engines... BUT a properly functioning modern turbofan should not experience compressor stalls even with slamming the power levers from idle to T/O power... If the engine is compressor stalling there is probably something wrong with the engine or fuel controller.

 

[avbug]

There's more to this than the captain's actions. You either have a dirty compressor, or an acceleration bleed problem, or a fuel schedule issue coupled with either of those things.

Is this happening on different airplanes, or one airplane?

 

[EagleRJ]

I'm almost sure the CL65 has FADEC controlled engines (Full Authority Digital Engine Control). They will moderate any inputs made through the thrust lever, so you can slam it up and down all you want, and the FADEC will keep the engine happy.

There's a chance that the engine could suffer a compressor stall in unusual situations, like full power, zero airspeed, and a tailwind. Also, some older planes have known issues with compressor stalls at high power settings at low airspeeds (B-727 #2 engine below 50 kts is an example).

 

[ReportCanoa]

These are new -8C1 FADEC engines. Agreed, this should not happen. I've not had a problem thus far, but I'm very concious of spooling them first...

 

[avbug]

That's pretty basic on any multi engine airplane, turbine or recip. Power should be established at a value and stabilized symmetrically before continuing with the power-up.