PPRuNe Forums

PPRuNe Forums (https://www.pprune.org/)
-   Tech Log (https://www.pprune.org/tech-log-15/)
-   -   B737-800W landing attitude question (https://www.pprune.org/tech-log/462299-b737-800w-landing-attitude-question.html)

Brayton Cycle 30th Aug 2011 15:21

B737-800W landing attitude question
 
Hi all

Could any of the 737-800W pilots tell me what the attitude on the PFD is on initial touchdown? I see normally just below the 5 degree mark, say 4 degrees. Am i wrong. Is it lower????

Thanks in advance

BC

theflyingbus 30th Aug 2011 16:48

have not got a clue, I'm looking out the window!!!

stilton 30th Aug 2011 18:57

If you're looking at your PFD on touchdown you are doing it wrong !

POWDERFINGER 30th Aug 2011 23:27

<grin>Hard to get a straight answer here, isn't it?

About 4 degrees is normal for an '800W on a normal descent and flare, with the speed around Vref. I look out the window too, but later print the "landing report" from the plane's ACMS page and review the data...

Brayton Cycle 31st Aug 2011 01:59

Yeah thought most of you would be a bit smart here. Thanks Powderfinger though so a straight answer.

We all look out the window. Just wanted an answer regarding what the PFD shows.

thermostat 23rd Sep 2011 02:02

B737-800
 
I don't know about the 800, but on the A320, the approach is at a body angle of 2.5 to 3 degrees nose up. As for the actual landing technique I start to reduce power at 50 ft and power is idle at 30 ft. Then at aprox 15 to 10 ft, increase nose up attitude to 6 degrees and hold that till touchdown. This results in little float and a good landing.

captjns 23rd Sep 2011 02:35

Like with any aircraft... look out the window and what ever it takes to check the descent, then that's the attitude. Every flight being different due to wind, CG, speed, temperature, turbulence, x-wind.

After all... does one look inside whilst landing their C152?

Centaurus 23rd Sep 2011 07:32

I don't know about the -800 but the 737-300 FCTM states the flare is initiated by coming back 2-3 degrees. if the attitude on approach is 2.5 degrees then this suggests the touch down without excessive float should be around 5.5 degrees?

Denti 23rd Sep 2011 09:09

Close, yes. It is the same advise about initiating the flare by increasing the pitch by 2 to 3°, approach attitude for typical landing weights at flaps 30 and Vref+5 is around 3 to 4° (according to boeing, 1° less for each 5kts above that speed) which means touchdown attitude is around 5 to 7°.

Koan 24th Sep 2011 00:45

MENU>DFDMU>PITCH REPORT

I got a 4.4 last night. Pretty decent landing:).


All times are GMT. The time now is 11:09.


Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.