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What are these 3 tones ?

Started by Egyptair687, Wed, 28 Jun 2017 13:48

Egyptair687

Hello, from a blog:
"
Let me address landing a normally loaded -400 for just a moment though. This airplane is so stable, like every other Boeing I've flown, that once trimmed and configured with gear down and landing flaps in position, you can practically take your hands of the controls and watch it fly to the ground. For those who consider us little more than bus drivers, maybe I should eliminate this sentence, but the Boeing engineers, led by Joe Sutter, father of the 747 did a fabulous job.

Here's the drill:  When near the ground and configured, you'll hear three tones. Ignore the first one... do nothing, really. Moments later when you hear the second tone, pitch the nose up a degree or degree and a half or so. Moments later when you hear the third tone, smoothly bring the throttles to idle... that's it! Now wait. In a few moments your 747 rolls onto the ground, decelerating as more and more rubber hits the road and your nose now starts to descend. Now fly your nose wheel onto the runway to complete a perfect landing. As the airplane slows below 20 knots, the body gear unlocks. Continue to slow to 10 knots or slower and you're at an ideal speed to make turns.
"

What are these three tones during the flare, he is speaking about ? (747-400 Captain, ret)

thank you,
Ahmed



Hardy Heinlin

Hello Ahmed,

these are the "flare tones" used by Northwest Airlines. You can enable them in PSX too. Which PSX version are you using?

Try this situ:
03 Approach 006 - Honolulu - Localizer type directional aid.situ


Regards,

|-|ardy

Egyptair687

Hello Hardy,

actually, I haven't even knew about this option, I first read about it in the blog of a 747-400 pilot.
http://randpeck.blogspot.de/

Great to see, that this option is available in PSX, I'll try it : )

thank you and greetings ,

Ahmed

Britjet

Simple really..
Not forgetting ground effect or sudden lack of, turbulence causing pitch changes, pitch-power couple if speed erodes suddenly due to shear and thrust is needed, sideways graunch" touchdown due to not being aligned perfectly, nose drop as thrust is reduced, changeable flare manoeuvre depending upon pitch attitude at 50 feet, flare authority eroded if speed gets low....etc..
It's always easy on a nice day when everything is perfect. For the rest - it can sometimes be like landing an apartment block in a gale, hanging on like grim death to an creature with a mind of its own.
Always fun, though!
Peter