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Old 1st Jul 2005, 18:56
  #174 (permalink)  
lomapaseo
 
Join Date: Mar 2002
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I can absolutely assure you that on the MD-82/83 series of 'modern' airliners if you slam the throttles you probably will do some blade distortion or overtemp. That's because the pathetic JT8D-217/219's have ancient hydro-mechanical fuel control mated to their 'modern' engines, with no limiters. MD ran out of development money to truly modernise their creation back in '81, leaving just a souped-up DC-9.

But, agreed, on the RJ with FADEC, probably not.
the last I knew was that the MD-82/83 was certified to an "R" or reserve thrust rating which automatically kicked the thrust up to an overboost when it sensed a drop in EPR on the other engine.

By certify it means that no damage will occur to the engine.

To my knowledge most hydro-mechanical controls do have limiters such as RPM, pressure and in some rare cases temperature to restrict the engine from blowing itself up..

It is indeed hard to imagine how you can command over-meter fuel to an engine that hasn't even started yet.

Of course you can still burn out the turbine with min fuel flow simply by starving the burner of pressurized air.
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