Author Topic: Single Engine Failure at V1 Training  (Read 4186 times)

EHM-1617 Iain

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Single Engine Failure at V1 Training
« on: June 26, 2006, 10:50:07 pm »
V1 Single Engine Failure Practise

One of the worse emergencies that can happen to a pilot is a single engine failure during the takeoff roll after V1. So, I thought I’d try one out :)

Here’s the situation: we’re configuring the aircraft (the stock B734) for a normal takeoff, runway 34R at KSEA. All looks normal during the takeoff roll.

It is important that autorudder is off, otherwise you will not be able to correct for the asymmetric thrust.

[IMG=800x600]http://i31.photobucket.com/albums/c377/iainfs/-2006-jun-26-005.jpg[/IMG]

Accelerating past 100 KIAS, all looks good for departure.

[IMG=800x600]http://i31.photobucket.com/albums/c377/iainfs/-2006-jun-26-006.jpg[/IMG]

There’s V1 (about 137 KIAS I calculated for this load). I press the engine 2 fail key.

[IMG=800x600]http://i31.photobucket.com/albums/c377/iainfs/-2006-jun-26-007.jpg[/IMG]

As we are committed to takeoff, we rotate slowly to around 13 degrees pitch. A bit of lateral drift is gonna happen. As soon as I verified the right engine had failed (2 or more engine instruments indicating failure), I applied a lot of left rudder and maintained a bank angle of approximately 5 degrees (‘raising the dead’).

[IMG=800x600]http://i31.photobucket.com/albums/c377/iainfs/-2006-jun-26-008.jpg[/IMG]

It is very important to accelerate quickly to V2+15/+25 and maintain this speed. A pitch attitude of around 13 degrees up should do the trick. Check gear up.

As soon as practical, apply a lot of left rudder trim to relieve control pressure. Trim for pitch, as always. Note early flap retraction and speed at V2+20.

[IMG=800x600]http://i31.photobucket.com/albums/c377/iainfs/-2006-jun-26-009.jpg[/IMG]

With one engine out, you always want to turn towards the good engine, so you can keep it low. Here we are, turning for a long left crosswind leg to return to 34R. It turns slowly, give yourself plenty of room.

[IMG=800x600]http://i31.photobucket.com/albums/c377/iainfs/-2006-jun-26-010.jpg[/IMG]

We are still climbing on crosswind.

[IMG=800x600]http://i31.photobucket.com/albums/c377/iainfs/-2006-jun-26-011.jpg[/IMG]

We are levelling out at 3000 AGL on downwind. Note how wide the pattern is.

[IMG=800x600]http://i31.photobucket.com/albums/c377/iainfs/-2006-jun-26-013.jpg[/IMG]

On downwind. Note how rudder trim is reduced for higher speed flight. Configuring the aircraft for landing.

[IMG=800x600]http://i31.photobucket.com/albums/c377/iainfs/-2006-jun-26-014.jpg[/IMG]

Here we are on base, reducing speed, increasing rudder trim, gradually extending flaps. We have given ourselves a long base, and a long 10 nm final.

[IMG=800x600]http://i31.photobucket.com/albums/c377/iainfs/-2006-jun-26-016.jpg[/IMG]

Now long final. Lots of rudder trim. Flaps 15 for a single engine landing. Autobrakes disengaged since we anticipate landing in one wheel before the other. Higher approach speed associated with less flap.

[IMG=800x600]http://i31.photobucket.com/albums/c377/iainfs/-2006-jun-26-017.jpg[/IMG]

2 nm. GPWS terrain, flaps, gear modes inhibited because we intend to land in a non-standard configuration. Landing checklist complete.

[IMG=800x600]http://i31.photobucket.com/albums/c377/iainfs/-2006-jun-26-018.jpg[/IMG]

Landed :) No reverse thrust because it would be asymmetric, only spoilers and manual wheel braking once all wheels were safely on the ground. Okay, okay, we’re not on the centreline, but it’s not so bad for only one engine (I thought)! The left wheel touched first, then the right, and last the nose.

[IMG=800x600]http://i31.photobucket.com/albums/c377/iainfs/-2006-jun-26-019.jpg[/IMG]

Vacated in the direction of the bad engine, then shutdown and called the tug :D

[IMG=800x600]http://i31.photobucket.com/albums/c377/iainfs/-2006-jun-26-020.jpg[/IMG]

Sorry for poor quality resized pictures.

I learnt a lot from that – I hope I’ve passed some of this knowledge on to you lot! Still, better to train for it and to know that you can do it rather than being scared by it when it happens for real!

Blue skies, and I hope the only time you get this emergency is during training ;)

Comments are ofcourse appreciated ;D

Offline EHM-1703 Philip

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Single Engine Failure at V1 Training
« Reply #1 on: June 27, 2006, 12:27:59 am »
Excellent Pictorial Iain, also looked like a lot of fun! ;)
Phil Nutt EHM 1703
 

EHM-1671 Ben

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Single Engine Failure at V1 Training
« Reply #2 on: June 27, 2006, 03:56:41 am »
Wow, that's some scary stuff! I trust the EHM ground crew can do their job! ;) But as they say, it's better to know it and not need it than to need it and not know it (say THAT three times fast!!)

Offline EHM-1465 Dominic

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Single Engine Failure at V1 Training
« Reply #3 on: June 27, 2006, 08:13:16 am »
Really good tutorial Iain with a comprehensive explanation of what to do and why...

It's the kind of thing I like to practice myself and I'd certainly encourage others to try it, it really makes you think about your skills and knowledge of the aircraft and will make you a better pilot!

Don't forget that a special panel is built into the fleet 757/767 (Lonny Payne's panel) which allows you to set up these kind of failures and many others... It really adds a bit of spice to your flying ;D
Dom Mahon // EHM-1465
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Offline EHM-1358 Tim

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Single Engine Failure at V1 Training
« Reply #4 on: June 27, 2006, 03:02:39 pm »
Nice.