PPRuNe Forums - View Single Post - Air North Brasilia Crash in Darwin (Merged)
Old 24th Mar 2010, 11:06
  #161 (permalink)  
t303
 
Join Date: Aug 2000
Location: Orstralia
Posts: 35
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FGD135
Are you saying you can get steady-state climb? That is, climb with a constant airspeed?
Or, is the climb of only a short duration (a few seconds - as the airspeed drops off)?
And, there is definitely no NTS action on the prop?
Of course, several posters disputed this statement. t303 was one, but he thinks zero-thrust is the same as windmilling.
Be fair, I did say flight idle to zero thrust!
But thanks for telling me what I think. Apparently, I also think I know how a Bras performs, so humour me for a moment..

Without any inference or opinion whatsoever reference this unfortunate event, but to simply (hopefully) ease FGD's anxiety about turboprop twin performance:

EMB120: THE AIRCRAFT (NOT the movie)

Takeoff config: flaps 15, 100% TQ, around 9.5T training weight,
simulated engine failure at V2+10 and after pos. rate callout.
TQ on dead (critical) engine flight idle, circa 5%. (13-15% was the accepted simulated zero thrust range)

A/c climbs at (eventually) 3-400fpm to 1000ft altitude WITH THE GEAR DOWN. Congratulate him/her on skillful handling of speed, attitude and balance, then point to the gear lever/indicator and make observation that even without CHECKING THE FX OR RETRACTING THE GEAR the old girl has dragged your sorry arze up through the briefed acceleration altitude, 3rd and 4th segment to 1000ft, without any configuration change!
Remind him/her (if s/he doesn't know already) that if s/he tries it with 30pax onboard........ well, use your imagination.
(You don't have to explain it twice, embarassment usually prevents repeats)
And before anyone starts....
Would I prefer to have done it in the SIM? HELL YEAH!!!!!!!!
But we didn't have the luxury.
Did I feel s/he was about to lose it? Not at all, otherwise Mr Pratt's wonderful piece of kit could not have come up any faster if it was running on Viagra! (I don't need to practice bleeding.)

So you can choose to believe me or call me a liar if you wish,
BUT AT LEAST ONE TURBOPROP TWIN WILL DO IT, at least under ideal conditions.
SEEN IT, DONE IT, LIVED TO TELL YOU ABOUT IT

Of course the usual caveat applies:
DON'T TRY THIS AT HOME KIDDIES!
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