Aces High Bulletin Board

General Forums => The O' Club => Topic started by: funkedup on April 05, 2003, 05:24:28 PM

Title: Creamo you ever work on B757/B767 slats?
Post by: funkedup on April 05, 2003, 05:24:28 PM
If you did, I want your opinion on this:
(http://perso.wanadoo.fr/jpdesm/pentagon/7725.jpg)
Title: Creamo you ever work on B757/B767 slats?
Post by: skernsk on April 05, 2003, 06:23:16 PM
Yup ..looks like Creamo's work to me.:D
Title: Hmmm
Post by: chance-airwolf on April 05, 2003, 07:13:49 PM
that would be a "dropped object"?
Title: Creamo you ever work on B757/B767 slats?
Post by: Creamo on April 05, 2003, 10:23:19 PM
Hmm, damned if I know. That metal bearing at the front left sure looks like a slat roller, but other than that, my opinion is Spermsk is ***** whipped.
Title: Creamo you ever work on B757/B767 slats?
Post by: funkedup on April 05, 2003, 10:31:46 PM
Creamo I concur.  The thing at bottom center (half covered by yellow tape) is the geared rotary actuator that I worked on for a couple years.  Input end is facing the camera.  The output shaft would be on the far side, between the two plates, in the same plane as the roller.  The largest circular hole in the far plate is where the drive shaft passes through on the way to the next actuator on the wing.

This is a piece from the plane that hit the Pentagon.  Found it on one of those conspiracy theory sites where they claim a cruise missile hit the Pentagon.
Title: Creamo you ever work on B757/B767 slats?
Post by: SOB on April 05, 2003, 10:49:01 PM
Quote
Originally posted by Creamo
...my opinion is Spermsk is ***** whipped.


That's not opinion, that's a fact!  :D


SOB
Title: Creamo you ever work on B757/B767 slats?
Post by: Toad on April 05, 2003, 11:04:59 PM
Sheesh! That's easy! One of the cruise missile warheads was loaded with old aircraft parts as a coverup.

Any other questions?
Title: Creamo you ever work on B757/B767 slats?
Post by: Creamo on April 05, 2003, 11:55:22 PM
Then it is very similar to a 737. The roller piece (slat roller I assume) you see has a lube point, same as the other like pieces for the moving parts of the system that sort of form a triangle as best I can describe it from the pic. The twisted green metal would be the structure that attaches the drive to the wing, perpendicular? to the length of the wing.

Don’t know what they could surmise from that. Looks like wreckage that could be caused by anything, like crashing into a building.

Go figure.
Title: Creamo you ever work on B757/B767 slats?
Post by: funkedup on April 06, 2003, 03:17:57 AM
I never had any experience with the 737 slats but my understanding is that the system layout is pretty similar.  Central PDU driving a bunch of actuators in series via torque tubes.
767 has a similar layout but the actuators used a drive lever instead of a drive gear for output.
Title: Creamo you ever work on B757/B767 slats?
Post by: NUKE on April 06, 2003, 03:20:17 AM
Quote
Originally posted by Toad
Sheesh! That's easy! One of the cruise missile warheads was loaded with old aircraft parts as a coverup.

Any other questions?


LOL Toad
Title: B737 ailerons
Post by: beet1e on April 06, 2003, 06:18:02 AM
I have a question which I'd like to ask in here, as Creamo, Funked & Mr. Toad are present. :) (I could start my own thread, but that pisses GTOra2 off - oh wait, he has me on his ignore list - it wouldn't have mattered - LOL).

Most of the flying trips I do around Euroland seem to be by B737. It's a popular plane with the cut price airlines, and who am I to question it when Ryan Air (http://www.ryanair.com) charged me only £1 (US $1.55) for a round trip flight to Dublin from "London" Luton (LTN/EGGW). Only one problem - the tax was another £25 - doh, but still good.

Anyway, the question is about the 737 ailerons. When landing at a field like Nice, conditions can be choppy. As Mr. Toad knows, because of the mountains and the town, and conflict between incoming and outgoing, sometimes an inbound plane has to make a 180° at low level. Hehe, all the passengers were screaming one time as we bounced in. Quite large aileron deflections were necessary, and I noticed that the spoilers popped up on the downward pointing wing in the turn. Have seen this since on 737s - are the spoilers designed to give additional aileron authority in this way?

Looking forward to meeting Mr. Toad in Nice or some other town on the Côte d'Azur later in the year. He will get a freebie to Nice from JFK with Mrs. Toad, and I will turn up with Tomato and we will spend a nice weekend soaking up France. The Toads might need visas by then - LOL. Dinner will be on us - either at Les Artistes in Nice, or one of the places in Cannes. The day after will be a good time to drive to St. Tropez along the coast road.

One small thing - Mr. Toad doesn't know about any of this yet. ;)
Title: Re: B737 ailerons
Post by: NUKE on April 06, 2003, 06:21:42 AM
Quote
Originally posted by beet1e
I have a question which I'd like to ask in here, as Creamo, Funked & Mr. Toad are present. :) (I could start my own thread, but that pisses GTOra2 off - oh wait, he has me on his ignore list - it wouldn't have mattered - LOL).

Most of the flying trips I do around Euroland seem to be by B737. It's a popular plane with the cut price airlines, and who am I to question it when Ryan Air (http://www.ryanair.com) charged me only £1 (US $1.55) for a round trip flight to Dublin from "London" Luton (LTN/EGWW). Only one problem - the tax was another £25 - doh, but still good.

Anyway, the question is about the 737 ailerons. When landing at a field like Nice, conditions can be choppy. As Mr. Toad knows, because of the mountains and the town, and conflict between incoming and outgoing, sometimes an inbound plane has to make a 180° at low level. Hehe, all the passengers were screaming one time as we bounced in. Quite large aileron deflections were necessary, and I noticed that the spoilers popped up on the downward pointing wing in the turn. Have seen this since on 737s - are the spoilers designed to give additional aileron authority in this way?

Looking forward to meeting Mr. Toad in Nice or some other town on the Côte d'Azur later in the year. He will get a freebie to Nice from JFK with Mrs. Toad, and I will turn up with Tomato and we will spend a nice weekend soaking up France. The Toads might need visas by then - LOL. Dinner will be on us - either at Les Artistes in Nice, or one of the places in Cannes. The day after will be a good time to drive to St. Tropez along the coast road.

One small thing - Mr. Toad doesn't know about any of this yet. ;)


"Nice" Beetle :)
Title: Creamo you ever work on B757/B767 slats?
Post by: AKWeav on April 06, 2003, 06:32:36 AM
Have seen this since on 737s - are the spoilers designed to give additional aileron authority in this way?

Yes, most aircraft so equipt are designed such. Actually spoilers don't add to aileron authority, they kill wing lift.  
:D
Title: Creamo you ever work on B757/B767 slats?
Post by: beet1e on April 06, 2003, 07:22:16 AM
NUKE -
Quote
Germany and France are in no way threatened by America's action in Iraq, it's just plain ridiculous.
ROFL! :D:D  You're supposed to make the spelling "rediculous", or maybe "redikulous". :)  I shall see him on Thursday. I've met him before. Nice guy, and I for one do not dislike people because of a difference of opinion.

Weav -
Quote
Actually spoilers don't add to aileron authority, they kill wing lift.
-thereby adding to the effect of the ailerons in this case. Gawd, there's so much hair splitting in these aviation discussions.
Title: Creamo you ever work on B757/B767 slats?
Post by: Ripsnort on April 06, 2003, 08:35:35 AM
WAG, but judging by the sizes, those holes look like BACD-2000-7 and BACD2000-9 flanged(And one BACD-2000-15 in the lower left hand corner)  (or was is BACD2001? Been a few years....)  I used build the tools that formed parts like that in hyrdorpresses.
Title: Creamo you ever work on B757/B767 slats?
Post by: ccvi on April 06, 2003, 08:56:43 AM
We'll know in 30 years when it's released under the freedom of information and privacy act... :rolleyes:
Title: Creamo you ever work on B757/B767 slats?
Post by: Toad on April 06, 2003, 10:11:31 AM
Yeah, Boeing has a nice system. Ailerons deflect first, then at certain point you get spoilers deflecting progressively on one wing to help you roll. In the case of spoilers already being up (use of speedbrakes to descend, for instance), you get differential spoilers with one side lowering progressively.

Works good, lasts a long time.
Title: Creamo you ever work on B757/B767 slats?
Post by: funkedup on April 06, 2003, 04:09:34 PM
Quote
Originally posted by Ripsnort
WAG, but judging by the sizes, those holes look like BACD-2000-7 and BACD2000-9 flanged(And one BACD-2000-15 in the lower left hand corner)  (or was is BACD2001? Been a few years....)  I used build the tools that formed parts like that in hyrdorpresses.


Rip if you can pull up some drawings on Monday and compare them to the pic that would rock.

Also if you can find a schematic of the flap/slat system, showing PDU, torque tubes, gearboxes, actuators, brakes, sensors, etc, that would rock.
Title: Creamo you ever work on B757/B767 slats?
Post by: funkedup on April 07, 2003, 11:23:36 AM
Bump for drip :D
Title: Creamo you ever work on B757/B767 slats?
Post by: beet1e on April 13, 2003, 07:44:24 PM
Quote
Originally posted by Toad
Yeah, Boeing has a nice system. Ailerons deflect first, then at certain point you get spoilers deflecting progressively on one wing to help you roll. In the case of spoilers already being up (use of speedbrakes to descend, for instance), you get differential spoilers with one side lowering progressively.

Works good, lasts a long time.
Rgr Mr. Toad. I did a B737 flight on Thursday, and noticed the spoilers deflecting to assist the ailerons - on the take off roll! I doubt that the intention was to kill lift at that stage of the flight. AKWeav?!
Title: Creamo you ever work on B757/B767 slats?
Post by: Toad on April 13, 2003, 09:20:08 PM
No, you don't want the spoilers up on T/O roll. Did it stay like that a long time? Or was it momentary like he was just late with his control check?
Title: Creamo you ever work on B757/B767 slats?
Post by: beet1e on April 14, 2003, 03:27:50 AM
Yep, just momentary - and not a full deflection.
Title: Creamo you ever work on B757/B767 slats?
Post by: Toad on April 14, 2003, 07:31:59 AM
There's some guys that have a habit of "stirring the soup" right before takeoff. They move the controls to the stops to make sure nothing is binding and all is right with the world. In the checklist it's the control check but it's usually done during taxi out.
Title: Creamo you ever work on B757/B767 slats?
Post by: beet1e on April 14, 2003, 07:52:45 AM
No, I don't think it was that. We were about half way into the take off roll, and it was one of those English days when the wind was in several different directions. Hehe, we get plenty of those.
Title: Creamo you ever work on B757/B767 slats?
Post by: Ripsnort on April 14, 2003, 08:25:30 AM
Quote
Originally posted by funkedup
Rip if you can pull up some drawings on Monday and compare them to the pic that would rock.

Also if you can find a schematic of the flap/slat system, showing PDU, torque tubes, gearboxes, actuators, brakes, sensors, etc, that would rock.


Hell, I wouldn't even know where to start for specific details.  Give me a tooling number, then I can find it. ;)  We made the tools that made the parts, that means higher tolerances (.003 in some cases, generally +/- .010 though, production parts were held to a .030 tolerance.)