Can you deploy ground spoilers manually?

[411A]

I also have it on quite good authority that the said SV incident was caused by the fitment of a light weight wheel assembly, not the heavier one that was required on the -200.
A search of spares turned up two more, and a fleet wide inspection assured no more light weight wheels were installed.
Heads rolled, you can be sure...although not just after Friday prayers.
In addition, the aeroplane was landed in Doha by the First Officer, as only his column was active with only hydraulic system D remaining serviceable.
I flew with him later on...a very good pilot...in fact, most of them were.
Well trained.

[glhcarl]

411A, The problem was not light weight wheels on heavy weight aircraft, but thin beads on the heavy weight rims. There was an AD to inspect all the rims and remove the rims with the thin beads, and eddy current test all the other rims to insure none were cracked.

[downsouth]

Hi guys, sorry to get back to the main subject (the manual extension of the ground spoilers) well, as far as I know, on the A320 with Flaps full the speed breaks are inhibited. On the ground, the deployment of the spoilers is automatic with the WOW if armed before or upon selections of thrust reverse if not armed. I don't think there is a way to manully extend them.

[glhcarl]

411A, Could you please explain your statement: "In addation, the aeroplane was landed in Doha by the first officer, as only his column was active with only hydraulic system D remaining serviceable".

I don't understand this statement as the pilots and first officers columns are connected in both pitch and roll and if the disconnects were not pulled full control was available from either column, even with only one hydraulic system operative.

[Clandestino]

Thank you gentlemen for your replies, especially IGh. I don't mind a bit of thread drift but for the benefit of the future contributors, I'd like to define ground spoilers as full extension of all installed spoilers, intended to significantly reduce lift and increase drag upon touchdown. There's quite a difference between speedbrake and ground spoiler, you know.

Also if you bothered to read my profile or, at the very least, first post, you would see that I'm A320 typerated and therefore I've found some comments here regarding Airbus system amusing, to say the least.

[411A]

I don't understand this statement as the pilots and first officers columns are connected in both pitch and roll and if the disconnects were not pulled full control was available from either column, even with only one hydraulic system operative.

Yes, if disconnects were not pulled, this would certainly be correct.
However, the story I was told was that the Captain's column was not responsive, so both pitch and roll disconnects were activated.
In addition, if I recall correctly, the aeroplane was landed with only one half of system D quantity remaining.

Lockheed systems redundancy paid off, big time.

[galaxy flyer]

411A

At EAStern, I was told L1011's were landed something like 30 times on the fourth hyd system and there were a number of points where the fourth system would "save the day". Any comments.

GF

[vapilot2004]

Manual ground spoiler actuation

Type.........Avail - Protections

DC-9..........Yes with mechanical link to control valves
MD-80........Yes
MD-11........Yes
732............Yes - Hydraulic bypass valve linked to RM LDG gear
737NG........Yes - Hydraulic bypass valve linked to right main LDG gear
727............Yes - Mechanical link from gear to ground spoiler lockout valve
742............Yes - On wheel spin up and weight on wheels (via ground safety relay)

[glhcarl]

galaxy flier,

Having worked on the L-1011 for over thirty two years and twenty of those years being in the in the landing gear, flight control, hydraulic group of L-1011 Customer Support. I know of only one occurance were three hydraulic systems were lost. That was Eastern N309EA, when the No. 2 engine fan seperated shortly after takeoff from EWR, 22 Sept 1981. The routing of the hydraulic line was such that the only place where all four systems are near each other is in the aft body, for powering the horizontal stabilizer. While there may have been more I have forgot them or they were not reported to Lockheed.

[Max Angle]

After nearly 10 years of Airbus flying I have never had the ground spoilers fail to deploy BUT if they don't (soft touchdown or aquaplaning I suppose might do it) there is no way to deploy them manually. In fact on most jet transports you can't deploy the ground spoilers manually, you can deploy the speedbrakes (normally the same panels but only using 2-3 a side) manually which then puts some weight on the wheels and pops up the rest of panels to give full ground spoilers. The problem on the 'bus is that speedbrakes are inhibited with flap full (3 or full on 321) which means that you can't get them out on the ground after landing. Airbus should change the logic ASAP in my opinion, however it only helps if you notice that they have not come out in the first place, on the Airbus the only clue is the little arrows on the lower ECAM gear page rather than a "thunk" as the handle moves.

[hetfield]

@Max Angle

After nearly 10 years of Airbus flying I have never had the ground spoilers fail to deploy BUT if they don't (soft touchdown or aquaplaning I suppose might do it) there is no way to deploy them manually.

On my Airbus, it's possible (flight spoilers 5 out of 7).

[tristar 500]

L1011

glhcarl
Yu are correct about the hyd systems for the horizontal stab, however the Tristar was fitted with shut off valves (unlike the DC10 which didn`t have them) so I think it unlikely that all the hyde systems were lost

411A
How luck you are still being being associated with one of the best aircraft ever.

[ballyboley]

Sorry for the thread drift, but i'm very interested to hear how 411A is still associated with the 1011. I too am a bit passionate about these "old girls" and although they're not so efficient nowadays I'd take one over a scarebus anyday.

I made my decision to become a pilot on the jumpseat of an Air-Transat 1011 about 10 years ago so I love to hear it being mentioned again. I've been trying in vain to find a way to get a trip on one - any ideas?

Maybe this should be moved to a new thread somewhere to not take away from the current thread!
On that note, what happens if the spoiler lever is moved right back past the flight detent in flight? Will all a/c allow this to happen in the air or is it limited to flight spoiler panels only until WOW?

Thanks

[Max Angle]

On my Airbus, it's possible (flight spoilers 5 out of 7).Sorry, should have said 10 years of FBW Airbus flying, I guess you are referrring to a "proper" aircraft rather than flying computer type.

[hetfield]

@Max Angle

A300.....