PPRuNe Forums - B777 spoilers don't fully deflect if pitch angle at touchdown is high?

PPRuNe Forums (https://www.pprune.org/)

- Tech Log (https://www.pprune.org/tech-log-15/)

- - B777 spoilers don't fully deflect if pitch angle at touchdown is high? (https://www.pprune.org/tech-log/633076-b777-spoilers-dont-fully-deflect-if-pitch-angle-touchdown-high.html)

extricate

7th Jun 2020 07:56

B777 spoilers don't fully deflect if pitch angle at touchdown is high?

Hi there,

As topic mentions, anybody has any info regarding this? As per this video, the first landing

bigduke6

8th Jun 2020 05:09

On B-744, the spoiler deployment give a nose pitch up moment. I assume that is also the case with the 777.

So maybe part of the tailstrike protection software, to reduce/cancel any pitch up moment if the tail is too close to the ground?

extricate

8th Jun 2020 06:56

Quote:

Originally Posted by bigduke6 (Post 10805319)

Interesting, I noticed that on the B747 too

wiggy

8th Jun 2020 21:52

I'd be wary of drawing too many comparisons, especially with regard to software - the 777 is FBW, the 747 isn't.

tdracer

8th Jun 2020 22:07

Quote:

Originally Posted by wiggy (Post 10806141)

I'd be wary of drawing too many comparisons, especially with regard to software - the 777 is FBW, the 747 isn't.

Depends on which model 747. IIRC, the spoilers on the 747-8 are FBW (unlike the previous versions of the 747).

wiggy

8th Jun 2020 22:59

Quote:

Originally Posted by tdracer (Post 10806152)

Depends on which model 747. IIRC, the spoilers on the 747-8 are FBW (unlike the previous versions of the 747).

Ah ha...thank you...

Three Wire

9th Jun 2020 00:48

If you saw this on your approach and landing, then you used a less than optimal technique. Time to reread the FCTM and rethink your technique.

All times are GMT. The time now is 03:04.