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KLM MD-11 Gear And Roof Questions

FutureUApilot From United States of America, joined May 2004, 1365 posts, RR: 4
Posted (8 years 2 weeks 5 days 17 hours ago) and read 2732 times:

Hey, what's the little thing sticking out horizontally tward the nose in this picture? Is it supposed to be there? Also, what causes those black streaks on the roof by the windows and door? Thanks!

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Photo © Florian Kondziela

-Sam

[Edited 2005-05-07 23:25:34]

The Pilot is the highest form of life on Earth!

17 replies: All unread, jump to last

EMBQA From United States of America, joined Oct 2003, 9292 posts, RR: 13
Reply 1, posted (8 years 2 weeks 5 days 17 hours ago) and read 2726 times:

Nose Steering Actuator....If you'd look, nearly every single aircarft with nose steering has a design simular to it.

The black streaks are caused by dirt and the airflow over the fuselage.

[Edited 2005-05-07 23:31:50]

"It's not the size of the dog in the fight, but the size of the fight in the dog"

FutureUApilot From United States of America, joined May 2004, 1365 posts, RR: 4
Reply 2, posted (8 years 2 weeks 5 days 17 hours ago) and read 2717 times:

Quoting EMBQA (Reply 1):
If you'd look, nearly every single aircarft with nose steering has a design simular to it

When I had a chance to walk around a CO 777 i didn't see that little thing, was i just blind? What does the Nose Steering Actuator do?

-Sam

The Pilot is the highest form of life on Earth!

EMBQA From United States of America, joined Oct 2003, 9292 posts, RR: 13
Reply 3, posted (8 years 2 weeks 5 days 17 hours ago) and read 2714 times:

Nose...Steering...Actuator...

It steers the airplane through moving the nose wheels....hence the name.

"It's not the size of the dog in the fight, but the size of the fight in the dog"

Klaus From Germany, joined Jul 2001, 20861 posts, RR: 55
Reply 4, posted (8 years 2 weeks 5 days 17 hours ago) and read 2714 times:

The steering actuator normally consists of a pair of hydraulic cylinders which turn the nose wheels into the desired direction. In most cases I´ve seen pictures of, the cylinders are mounted behind the strut, however.

EMBQA From United States of America, joined Oct 2003, 9292 posts, RR: 13
Reply 5, posted (8 years 2 weeks 5 days 17 hours ago) and read 2709 times:

Your just blind......although a slightly different design, the actuators are clearly visable on the Boeing 777.
View Large View Medium
Click here for bigger photo!

Photo © Rhys Dudley - TeamJetspotter

[Edited 2005-05-08 00:00:51]

"It's not the size of the dog in the fight, but the size of the fight in the dog"

FutureUApilot From United States of America, joined May 2004, 1365 posts, RR: 4
Reply 6, posted (8 years 2 weeks 5 days 16 hours ago) and read 2686 times:

Ah, ok, thanks.. I see it now. Yeah sure

Quoting EMBQA (Reply 3):
Nose...Steering...Actuator...

It steers the airplane through moving the nose wheels....hence the name.

Sorry, Actuator is a new term, English isn't my native language...

-Sam

The Pilot is the highest form of life on Earth!

Amtrosie From United States of America, joined Jan 2005, 274 posts, RR: 1
Reply 7, posted (8 years 2 weeks 5 days 12 hours ago) and read 2650 times:

The black streaks are a combination of dirt/water that is forced out of various crevases when the A/C is pressurized. It is also a good indication of a presurization leak, however small.

HAWK21M From India, joined Jan 2001, 31201 posts, RR: 58
Reply 8, posted (8 years 2 weeks 5 days 5 hours ago) and read 2611 times:

Nose Wheel Steering Actuators.

The Black streaks are caused by Dirt flowing over the Aircraft.
regds
MEL

Think of the brighter side!

Helsin99 From United States of America, joined Feb 2005, 10 posts, RR: 0
Reply 9, posted (8 years 2 weeks 4 days 13 hours ago) and read 2542 times:

On the first picture of the KLM MD-11, does anyone have any ideas about what that hatch that appears to be open under the first window in the passenger compartment is or does? Is that the valve that release cabin pressure?

EMBQA From United States of America, joined Oct 2003, 9292 posts, RR: 13
Reply 10, posted (8 years 2 weeks 4 days 12 hours ago) and read 2535 times:

If I remember correctly it's an outflow for the ACM Packs. Notice the two inlets on the forward side of the nose.

"It's not the size of the dog in the fight, but the size of the fight in the dog"

HAWK21M From India, joined Jan 2001, 31201 posts, RR: 58
Reply 11, posted (8 years 2 weeks 4 days 9 hours ago) and read 2518 times:

Quoting Helsin99 (Reply 9):
On the first picture of the KLM MD-11, does anyone have any ideas about what that hatch that appears to be open under the first window in the passenger compartment is or does

Are you referring to the Landing Light.
regds
MEL

Think of the brighter side!

MD11Engineer From Germany, joined Oct 2003, 13344 posts, RR: 64
Reply 12, posted (8 years 2 weeks 4 days 4 hours ago) and read 2494 times:

Quoting HAWK21M (Reply 11):
On the first picture of the KLM MD-11, does anyone have any ideas about what that hatch that appears to be open under the first window in the passenger compartment is or does

It is a retractable landing light in the extended position. The thingies sticking out from the NLG are the two steering actuators and two small glide path antennas below them. The things pointing foward under the nose are the three pitot tubes.

Jan

Helsin99 From United States of America, joined Feb 2005, 10 posts, RR: 0
Reply 13, posted (8 years 2 weeks 3 days 11 hours ago) and read 2396 times:

Thanks for the information. Now that I look at it again, I can see that it is a light. I didn't know that they retracted. That's what I like about this forum, always learn something new.

h99

HAWK21M From India, joined Jan 2001, 31201 posts, RR: 58
Reply 14, posted (8 years 2 weeks 3 days 6 hours ago) and read 2363 times:

What are the Marking in Black for.
Near the AOA sensor & beow the Entry door.
regds
MEL

Think of the brighter side!

MD11Engineer From Germany, joined Oct 2003, 13344 posts, RR: 64
Reply 15, posted (8 years 2 weeks 3 days 3 hours ago) and read 2349 times:

Quoting HAWK21M (Reply 14):
What are the Marking in Black for.
Near the AOA sensor & beow the Entry door.
regds
MEL

We don´t have them on our freighters, but I assume KLM put them there as a guidance for the airstairs / jetway operator.

Jan

HAWK21M From India, joined Jan 2001, 31201 posts, RR: 58
Reply 16, posted (8 years 2 weeks 2 days 6 hours ago) and read 2295 times:

Seen the same markings in Orange on the New 9W A343 yesterday.
Any Idea how is the refrencing done.
regds
MEL

Think of the brighter side!

MD11Engineer From Germany, joined Oct 2003, 13344 posts, RR: 64
Reply 17, posted (8 years 2 weeks 2 days 3 hours ago) and read 2291 times:

I assume that they are used by operators of airsairs which are mounted on a truck. From their cab they can´t see the door opening if the stairs is close, so they´ll orient themselves by the markings.

Jan

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