PPRuNe Forums - View Single Post - Turboprop performance
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Old 15th Nov 2003, 05:24
  #6 (permalink)  
Miserlou
 
Join Date: Jan 2003
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Always a subject for debate but for these <1 hour sectors there is so little to be gained that it's not worth the funny look from your CDR.

Whether a cruise climb, high speed cruise climb or best rate climb is best can easily be worked out when you out flying. The argument usually goes on about efficency but in the real world (the european airline industry) what matters is ground speed. You're not paying for the fuel and the deciding factor on how much fuel you actually use is air traffic control.

Also, you may find the cabin attendants complaining if you topple their trolleys with too steep a climb after releasing them.

'The Step' is no longer an issue with turboprop engines. You accelerate to whatever speed you get with climb power then reduce to cruise power and the speed falls back to what it falls back to.

A friend ofmine did some experiments and found that it pays to go as fast as you can in a head wind but there is almost no benefit in flying slower with a tailwind. Isn't that always the way; -40kts out, +15 kts back!!!

If you're not heading in the direction you want to go on a SID climb as best you can.

Have fun!
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