PPRuNe Forums - View Single Post - All those that flew for Discover (f)lying on the Penguin runs
Old 22nd May 2014, 14:03
  #94 (permalink)  
Centaurus
 
Join Date: Jun 2000
Location: Australia
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If I recall Ted didn't get the prop feathered so really didn't follow std eng fail proc's
Depends on what you called standard engine failure procedures. In fact Ted did use the correct sequence of procedures commonly taught (rightly or wrongly) in todays flying schools as a generic drill.
Engine fails..control the yaw...mixture, pitch controls and throttle forward.....flap up....gear up....identify the failed engine ... confirm by slowly closing dead engine throttle...feather. On some types cut mixture then feather.

Ted had immediate problem with retracting the flaps and gear together due system design. At 50 feet agl he had insufficient runway left to land ahead, plus the prospect of falling over the edge on to the Tullamarine Freeway if he went off the end of 17. In the few seconds he had with all that drag and airspeed rapidly decaying at the same time, he never had the time to go through the luxury of mixture/pitch and power up, and never mind slowly closing the dead throttle, before he reduced power on the good engine to level the wings before bouncing off the roof of the first house and into the second house.

The current sequence of drills taught for many years may be fine for cruise flight but ignores the fact that a windmilling prop gives more drag than an extended landing gear in some types. Thus the common sequence of drills may be inappropriate for an engine failure shortly after lift-off where prompt feathering action is vital and even more so before the RPM of the failed engine is allowed to decay to the extent that feathering is not possible.

In the limited time between the engine failing just after lift off from runway 17 at Essendon and the time of first impact, coupled with neither the gear or flaps would retract initially, then the Dove was going nowhere but down.

Immediate feathering before all the other items may (doubtful in this particular case) have saved the day. However, that is being wise after the event; particularly in view of the commonly taught sequence of actions which gives feathering as the last item on the list of an engine failure.

Curses. Just realised my original Post 86 written two months ago is similar to this one. How time flies on Pprune! Didn't see it before penning this lot. Apologies. Old age catching up.

Last edited by Centaurus; 22nd May 2014 at 14:16.
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