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BA A321 tailstrike.

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BA A321 tailstrike.

Old 29th Jul 2015, 14:37
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BA A321 tailstrike.

Seems BA A321 had a tailstrike in Glasgow on the !9th of July.
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Old 29th Jul 2015, 15:22
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G-EUXF, inbound, looks like it's still there.
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Old 29th Jul 2015, 19:45
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Positioned GLA-MAD 27 July
for mtce

('thebasource.com')
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Old 29th Jul 2015, 21:17
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Accident: British Airways A321 at Glasgow on Jul 19th 2015, tailstrike on landing
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Old 30th Jul 2015, 00:44
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A321 again! And it wasn't even bad weather!
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Old 30th Jul 2015, 02:36
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Our friends in TLS aren't helping matters. Despite 1100+ A321s being built and another 1500+ on order, they refuse to produce a datapack for the A321 so currently all FSTDs are A320 only.
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Old 30th Jul 2015, 12:32
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At least they noticed the tail strike!
https://assets.digital.cabinet-offic...pdf_500002.pdf

When Boeing introduced the B737-400 they also included a tail bumper. Why didnít Airbus put something in place as well when introducing the A321?
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Old 3rd Aug 2015, 12:39
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In my day I always flew plus 10 on a 321 and it was always a power on landing with little nose up.......yeap totally against the grain.....never scraped a tail and stop dist never an issue. Flew the 73 400s the same.
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Old 3rd Aug 2015, 16:03
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Who says they noticed the tail strike........?
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Old 3rd Aug 2015, 18:02
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Agreed - I was told that a member of the public had seen 'sparks' on landing and reported it to the airport.

Passengers had disembarked before people (including the fire service) started paying attention to the tail end of the aircraft.
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Old 3rd Aug 2015, 18:09
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When Boeing introduced the B737-400 they also included a tail bumper. Why didnít Airbus put something in place as well when introducing the A321?

So it's not true then; the pilot can take an AB outside its comfort zone. A RAD ALT on the tail link into the pitch computer and a filter than resists further pilot input. Being a Boeing man I thought that's what all these Toulouse electrons was about. Don't let the pilot bend the a/c. There have been other demonstrations of this myth being false; here's another.

But I do ask the question as a technician, not a pilot: why not have proximity sensors in the tail linked to pitch channel; both take off and landing?
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Old 3rd Aug 2015, 18:18
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Originally Posted by RAT 5
When Boeing introduced the B737-400 they also included a tail bumper. Why didnít Airbus put something in place as well when introducing the A321?

So it's not true then; the pilot can take an AB outside its comfort zone. A RAD ALT on the tail link into the pitch computer and a filter than resists further pilot input. Being a Boeing man I thought that's what all these Toulouse electrons was about. Don't let the pilot bend the a/c. There have been other demonstrations of this myth being false; here's another.

But I do ask the question as a technician, not a pilot: why not have proximity sensors in the tail linked to pitch channel; both take off and landing?
I would imagine to allow them to get airborne in an emergency (eg runway incursion) and bigger the tail if needed
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Old 3rd Aug 2015, 18:45
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I heard that the reporting might even have been more convoluted than that...........
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Old 3rd Aug 2015, 19:43
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I heard that the reporting might even have been more convoluted than that...........
.....go on then
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Old 3rd Aug 2015, 20:40
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Why didnít Airbus put something in place as well when introducing the A321?
Because it does not need it, Boeing is removing them from the 777-300ER. Bumpers don't stop tail strikes, or prevent damage.

A RAD ALT on the tail link into the pitch computer and a filter than resists further pilot input.
No aircraft works that way.

why not have proximity sensors in the tail linked to pitch channel; both take off and landing?
Inertia, with the small ground clearance and pitch rates, you add complexity to a tail strike that is going to happen before it makes contact.
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Old 3rd Aug 2015, 21:38
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A RAD ALT on the tail link into the pitch computer and a filter than resists further pilot input.

No aircraft works that way.


No a/c worked that way until AB, F16, FBW, Stealth a/c. They have built in anti-stall pitch limiters; alpha floor etc. Until these a/c 'no a/c worked that way.' Remember the 1st autoland; look no hands? Times move on. Telephones were just that; wires and things. then came cordless phones, then mobile phones and then they had cameras, and then they internet and are in fact hand-held computers. But no phones worked that way.
Now they do! It's called evolution and development. 25 years ago there was no TCAS. No need, we have radar ATC. That didn't work so well. It will happen that there will be automatic RA manoeuvres on a/c. Good grief it is already on motor cars with active cruise control and auto braking functions. To save embarrassment there is not auto parking. Talk about dumbing down of PF skills. You don't need to be able to brake or park. point and shoot and get out at the other end. When my phone can 'beam me up' then I know Star Trek has become real. Every year is closer.
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Old 3rd Aug 2015, 21:45
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It will happen that there will be automatic RA manoeuvres on a/c.
Standard on A350/380 from what I heard.

When Boeing introduced the B737-400 they also included a tail bumper. Why didnít Airbus put something in place as well when introducing the A321?
The tail skid can only do so much with the tailstrike. Most of the 737 tail strikes seem to do a lot more damage than just damaging the tail skid. What would be beneficial is a tail strike sensor in place of the tail skid - to undoubtedly confirm that you've actually had a tail strike.
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Old 3rd Aug 2015, 22:03
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swh - How about this, from Boeing

Flight testing of the Boeing 777-300ER has verified the performance of numerous special features. One such feature, Tail-Strike protection, helps prevent tail contact with the ground on takeoff. Operating through the airplane's fly-by-wire flight controls, the system allows the airplane to lift off at reduced speed, increasing allowable takeoff weight by 4,000 to 10,000 pounds (1,814 to 4,536 kilograms), depending on airport conditions and airplane structural limits.

"It's in the primary flight computer," said Frank Santoni, Boeing 777 chief pilot, of the special feature. "It's a function that looks at rate of closure of the tail to the ground during rotation, measuring how fast and at what distance the tail is moving toward the pavement."

If the tail gets too close to the ground, the system moves the elevator for slower nose rotation. During abuse takeoff testing, where Santoni has deliberately rotated the airplane early and fast, the system has responded as designed.

"It's doing a superb job, which is testament to our engineering team," Santoni said. "On the 777-300 program six years ago we did the same takeoff performance tests and contacted the tail about 12 times, which is expected during flight-test. On this program, we haven't touched once."
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Old 3rd Aug 2015, 23:45
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It will happen that there will be automatic RA manoeuvres on a/c.
Standard on Std 1.9 A320 too now
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Old 3rd Aug 2015, 23:53
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Later s/n Airbus have a pitch limit symbol which appears on the PFD at 400ft Radalt to help avoid a tailstrike on landing.
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