Search found 176 matches

by 747Teach
Sat Feb 17, 2007 12:43 pm
Forum: Technical/Operations
Topic: Why Did The L-1011's Brakes Overheat So Easily?
Replies: 5
Views: 5057

RE: Why Did The L-1011's Brakes Overheat So Easily?

I've worked L1011 aircraft for three different major carriers, including one in the Middle East where we routinely had runway temps in the high 40 C's, for fifteen years, and only saw hot brakes once. Heartbeat? Hardly. Regards,

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by 747Teach
Wed Dec 06, 2006 12:13 pm
Forum: Technical/Operations
Topic: Script: Could A Child Open Airliner Doors?
Replies: 55
Views: 4615

RE: Script: Could A Child Open Airliner Doors?

Flyboy2001: Wait, wait, . . .I got it! I got it! The kid (wait, even better, a little boy and his cute kid sister) depressurizes a DC9, gets the aft pressure bulkhead door open, goes back on the catwalk (lot of suspensful music here, and sounds of air rushing by), hops into the tail cone, pulls the ...

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by 747Teach
Sat Oct 21, 2006 12:38 am
Forum: Technical/Operations
Topic: Airline Engineers
Replies: 25
Views: 15667

RE: Airline Engineers

FlyInBack: Let me give you a little hint. Look at what's going on in aviation (decreasing wages, vanishing medical benefits, frozen retirements), then look at what's going on in the petroleum industry (starting wages that are higher than you'll ever make in aviation no matter how long you work, an i...

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by 747Teach
Thu Aug 17, 2006 12:23 pm
Forum: Technical/Operations
Topic: Cartridge Starts
Replies: 17
Views: 21489

RE: Cartridge Starts

Flight152: I was an Air Force F-4 crew chief for three years; I can tell you a bit about cartridge starts on those aircraft. Under the belly is an access panel just below the starter, which you open to access the breech. The pneumatic starter on each engine has a "breech," a cylinder about 6" in dia...

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by 747Teach
Wed May 24, 2006 1:40 am
Forum: Technical/Operations
Topic: Tail Mounted Engine. . .
Replies: 13
Views: 3682

RE: Tail Mounted Engine. . .

Memphis: On the L1011, the rudder cables route from the crank arms under the cockpit floor rearward to the afterbody. From there they route up through the afterbody, around the S-duct to the quadrant located at approximately vertical fin station 145. As the cables move they turn the quadrant, which ...

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by 747Teach
Wed Sep 28, 2005 8:39 am
Forum: Technical/Operations
Topic: Oldest Airplane Engine You Worked On
Replies: 23
Views: 5160

RE: Oldest Airplane Engine You Worked On

Probably the 1820's on a Lockheed Lodestar. The Lodestar was a fairly common executive transport back in the 60's. Then there was the J-33 in the Lockheed T-33, about the same vintage. Regards, <br><table align=center border=0 width=500><tr><td><center><font color="#EEEEEE" size="1" face="ARIAL, Hel...

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by 747Teach
Fri Sep 16, 2005 7:59 am
Forum: Technical/Operations
Topic: NW And Tape Gauges
Replies: 3
Views: 2344

RE: NW And Tape Gauges

tg747-300: The vertical tape gauges were replaced with the EIDS system flat-panel LCD's quite a while back. Regards,

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by 747Teach
Sun May 15, 2005 11:09 am
Forum: Technical/Operations
Topic: Has FRA Got A New Type Of Towing Tractor?
Replies: 16
Views: 5883

RE: Has FRA Got A New Type Of Towing Tractor?

Tom: Prices vary widely depending on optional equipment, the quantity ordered, currency conversion rate, and the individual deal a company makes with the suppliers of the ground equipment. You might expect an <acronym title="Astoria - Regional (Port of Astoria) (AST), USA - Oregon">AST</acronym>-3 o...

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by 747Teach
Sun May 15, 2005 10:57 am
Forum: Technical/Operations
Topic: What Is It? Strange Jig Or Structure At LAX
Replies: 5
Views: 5329

RE: What Is It? Strange Jig Or Structure At LAX

Mike: Without seeing a picture, it sounds like you're describing a fuselage mockup that some airlines use for training their ground personnel to operate the baggage loading equipment and boarding bridges. When learning to drive and align a belt loader, can loader, or jet bridge, it's not always conv...

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by 747Teach
Wed May 04, 2005 8:14 pm
Forum: Technical/Operations
Topic: Has FRA Got A New Type Of Towing Tractor?
Replies: 16
Views: 5883

RE: Has FRA Got A New Type Of Towing Tractor?

AirbusA346: The vehicle you're seeing is indeed the new Goldhofer <acronym title="Astoria - Regional (Port of Astoria) (AST), USA - Oregon">AST</acronym>-1X 800. This is the prototype for their new line of tow tractors. Some details: It is 11 m long, 4.8 m wide, 1.6-2.2 m tall, weighs about 36,000 k...

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by 747Teach
Wed Dec 15, 2004 11:46 pm
Forum: Technical/Operations
Topic: Working In Snow - How Tough
Replies: 29
Views: 4586

RE: Working In Snow - How Tough

HAWK21M: The degree of difficulty in working in snow and cold is approximately the same as changing a fuel pump and fuel flow regulator on an <acronym title="Syrian Arab Airlines">RB</acronym>-211 at night in a howling monsoon while my two helpers (one Sikh, one Hindu), took the occasional fight bre...

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by 747Teach
Sat Aug 14, 2004 1:42 am
Forum: Technical/Operations
Topic: Tight Turn Of A 747
Replies: 33
Views: 6982

RE: Tight Turn Of A 747

Hotje: For the 747 classics: Body gear steering supplements nose gear steering for directional control during towing and taxiing of the aircraft. Body gear steering also reduces tire scrubbing when maneuvering on the ground. A switch, actuated by a cam that is mechanically driven from the nose gear ...

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by 747Teach
Tue Aug 10, 2004 12:51 am
Forum: Technical/Operations
Topic: NW A320-SR?
Replies: 6
Views: 3044

RE: NW A320-SR?

LAXinYYZ: The designation "SR" is for the A320 aircraft that carry the slide/raft combination, 3201-3270. The other 8 have slides only. Regards,

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by 747Teach
Wed Aug 04, 2004 11:22 pm
Forum: Technical/Operations
Topic: 747 Stair "Lock"?
Replies: 9
Views: 12015

RE: 747 Stair "Lock"?

SafetyDude: Lorm's got it. Most of the 747's have some sort of fabric barrier device at the top of the stairs to keep smoke out of the upper deck. Nothing in any reference I have for any "metal panel" (except for the stair door on the freighters) on a 747 that could block the stairs. Early 747's had...

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by 747Teach
Wed Aug 04, 2004 10:59 pm
Forum: Technical/Operations
Topic: Wing Sock
Replies: 7
Views: 2160

RE: Wing Sock

Boeing767mech has it. Two pieces of stretchy fabric sewn to make sort of a sock to cover your shoes. We use them all the time. Regards,

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by 747Teach
Mon Jul 26, 2004 1:21 am
Forum: Technical/Operations
Topic: Paint Vs. Bare Metal
Replies: 29
Views: 9350

RE: Paint Vs. Bare Metal

Airplay: I'm reading from the Crown Metro tech data sheet that came with the paint. It's from 1991, which I don't consider old according to aircraft standards. This livery lasted until a few years ago when we went to the new scheme. In fact, some of our aircraft still carry this paint job. The 24-F2...

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by 747Teach
Sun Jul 25, 2004 8:54 am
Forum: Technical/Operations
Topic: Paint Vs. Bare Metal
Replies: 29
Views: 9350

RE: Paint Vs. Bare Metal

KYAir, Airplay, 7E72004: Ord's link is your best answer to the paint question. The Northwest 747 in this photo <br><center><font color="#EEEEEE" size="1" face="ARIAL, Helvetica, Geneva"><a href="/open.file/625285/L/" target="_blank">View Large</a> <a href="/open.file/625285/M/" target="_blank">View ...

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by 747Teach
Wed Jun 02, 2004 1:45 am
Forum: Technical/Operations
Topic: B-757 Red Landing Gear Fluid
Replies: 18
Views: 6765

RE: B-757 Red Landing Gear Fluid

Goboeing: Some of the very first 747's did indeed have Skydrol in their struts. This was because the struts were connected to the ship's No. 1 and 4 hydraulic systems through a load leveling system. The load leveling system was designed to pump the struts up and down in order to keep the aircraft le...

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by 747Teach
Mon May 17, 2004 11:55 pm
Forum: Technical/Operations
Topic: Vibration Midflight -- What Causes It?
Replies: 15
Views: 6726

RE: Vibration Midflight -- What Causes It?

TakeOff: Then there was the 747 cabin crew that reported a constant vibration in the cabin ceiling near the R1 door. Troubleshooting by the flight engineer narrowed the noise down to the upper deck lavatory. Fearing something was amiss since the door was locked from the inside, the crew released the...

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by 747Teach
Thu Apr 22, 2004 9:21 pm
Forum: Technical/Operations
Topic: 747 Centre Bogies
Replies: 15
Views: 2728

RE: 747 Centre Bogies

Deskpilot: The body gear steering systems on the 747 classic and the -400 models are very much alike. The -400 has some additional automatic features, some additional sensing by the BSCU, and some EICAS messages. The mechanical function is very similar. After being enabled and armed, as the nose whe...

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by 747Teach
Wed Apr 21, 2004 9:25 pm
Forum: Technical/Operations
Topic: How Often Do Airplanes Get New Painting
Replies: 8
Views: 8304

RE: How Often Do Airplanes Get New Painting

A380900: Modern epoxy paints have a pretty good lifespan, but I'd say most airline aircraft will get painted somewhere between 5 and 10 years. And they get washed on the order of every 6 months. It's more of a "corporate image" issue than performance. Of course, as individual aircraft change owners,...

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by 747Teach
Wed Apr 14, 2004 3:06 am
Forum: Travel, Polls & Preferences
Topic: NWA 757 Parked At Gate G19 In MSP
Replies: 5
Views: 4289

RE: NWA 757 Parked At Gate G19 In MSP

COAB767: The bridge on G19 is an older apron drive model, but certainly has the capacity to reach either the L1 or L2 door. It's fairly common to load 757's from the L2 door. Which door they use on a particular day for a particular flight can vary. Regards,

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by 747Teach
Mon Apr 12, 2004 10:51 pm
Forum: Travel, Polls & Preferences
Topic: China Airlines Cargo Incident
Replies: 0
Views: 3050

China Airlines Cargo Incident

In February, 2002, China airlines had a 747 freighter that had a nose strut problem at Taipei, which resulted in strut collapse and also some problems with damage from an inproperly positioned tail jack. Does anyone have any more photos, or links, of this incident, beyond the three that appear here ...

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by 747Teach
Fri Apr 09, 2004 8:54 pm
Forum: Technical/Operations
Topic: Reverse Thrust With No Cowl Movement: How?
Replies: 11
Views: 4822

RE: Reverse Thrust With No Cowl Movement: How?

Aguilo: If you look closely at this photo, <br><center><font color="#EEEEEE" size="1" face="ARIAL, Helvetica, Geneva"><a href="/open.file/198018/L/" target="_blank">View Large</a> <a href="/open.file/198018/M/" target="_blank">View Medium<br><IMG SRC="/photos/small/8/1/0/198018.jpg" ALT="Click here ...

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by 747Teach
Tue Apr 06, 2004 12:26 am
Forum: Technical/Operations
Topic: Aircraft Storage Question #2
Replies: 4
Views: 4933

RE: Aircraft Storage Question #2

Tiger119 and Ultrapig: You're asking a rather large question. But at least one operator as some of the following information. Aircraft can simply be parked with covers on for about 20 days. After that, they will be considered in "short term storage," which can last up to 180 days. They would probabl...

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by 747Teach
Mon Apr 05, 2004 11:37 pm
Forum: Technical/Operations
Topic: B-747 Air Brakes
Replies: 20
Views: 8656

RE: B-747 Air Brakes

Capterdi: As 747Skipper points out, the speed brake/spoiler system is fairly complex. I'll give you a quick rundown on what the 747-200 AMM says: The speed brake control system is used to increase drag and reduce lift in flight and on the ground. It consists of 12 spoiler panels numbered 1 through 1...

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by 747Teach
Mon Mar 29, 2004 11:03 pm
Forum: Technical/Operations
Topic: Aircraft Water
Replies: 37
Views: 17777

RE: Aircraft Water

Jc5280: The 747 generally has the capacity of 330 gallons of potable water. This is held in three 110 gallon filament-wound fiberglass tanks attached to the forward side of the center section front spar (rear bulkhead of the forward baggage compartment). The water is moved from the tanks by pressuri...

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by 747Teach
Tue Mar 23, 2004 10:24 pm
Forum: Technical/Operations
Topic: 747-300 HF Antenna
Replies: 4
Views: 8532

RE: 747-300 HF Antenna

Mhsieh: Most of the earlier 747-100, 200, and some 300 models had the familiar "probe" type <acronym title="Hapag-Lloyd (Germany)">HF</acronym> antenna and coupler mounted in each wingtip. Some 747-300's and all 400's that I can research have the <acronym title="Hapag-Lloyd (Germany)">HF</acronym> a...

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by 747Teach
Tue Mar 16, 2004 9:51 pm
Forum: Technical/Operations
Topic: Fixed Wing Engine Washes
Replies: 12
Views: 3198

RE: Fixed Wing Engine Washes

Northseatiger: When I worked in the Middle East, we washed our 737 engines on an almost nightly basis, due to the amount of dust in the air. This was a compressor wash, performed by spraying deionized water down the inlet while motoring the engine. And about once a week each engine received a turbin...

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by 747Teach
Mon Mar 15, 2004 9:55 pm
Forum: Technical/Operations
Topic: 747's, And Fueling.
Replies: 28
Views: 9088

RE: 747's, And Fueling.

Go3Team: At one airport I worked in the Middle East, we had no underground hydrants. All fuel was delivered by truck. The local vendor used huge trucks of 85,000 liter capacity, usually 2 per 747. These trucks are roughly 3 times the size of the normal 8000 gallon 18-wheeler you see on the road in t...

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by 747Teach
Thu Mar 11, 2004 5:02 am
Forum: Technical/Operations
Topic: Cabin Crew Opening Doors
Replies: 50
Views: 10478

RE: Cabin Crew Opening Doors

Thrust: Some of those ol' boys that I worked with when we restored 37C having been taxiing Connies with the crew door open for about 50 years, <acronym title="Anderson - Regional (County) (AND / KAND), USA - South Carolina">AND</acronym> NONE <acronym title="Transports et Travaux Aériens de Madagasc...

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by 747Teach
Wed Mar 03, 2004 12:10 pm
Forum: Technical/Operations
Topic: Test Flight Parachutes
Replies: 12
Views: 8668

RE: Test Flight Parachutes

7574EVER: The device that you see dangling from the rear of aircraft under test is called the trailing cone pressure transducer. It is a device for obtaining "nearly free-stream static pressure." If you would like to read a lengthy treatise on the subject, find NASA Technical Memorandum 104316, "Air...

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by 747Teach
Wed Mar 03, 2004 1:56 am
Forum: Technical/Operations
Topic: Paint Weight And Cost
Replies: 30
Views: 16538

RE: Paint Weight And Cost

BA777: A few years ago I was involved in painting 747's. If I remember correctly, from bare metal out, we figured about 60 gallons of primer (including catalyst), and 60 gallons of various colors (including catalyst), for a total of 120 gallons. The Crown Metro High Solids paint we used weighed abou...

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by 747Teach
Tue Mar 02, 2004 9:48 pm
Forum: Technical/Operations
Topic: Passenger Use Of The 747 Cockpit Exit
Replies: 18
Views: 11943

RE: Passenger Use Of The 747 Cockpit Exit

VC-10: If you will check the 747-100 -200 AMM, Chapter 06-10-00, page 217 gives this information: Zone 220, Figure 214. Control Cabin (also known as the control cab and cockpit). Fuselage interior upper deck cabin, Sta. 220-425, including the crew emergency exit hatch. This is followed by a second n...

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by 747Teach
Tue Mar 02, 2004 6:03 am
Forum: Technical/Operations
Topic: Passenger Use Of The 747 Cockpit Exit
Replies: 18
Views: 11943

RE: Passenger Use Of The 747 Cockpit Exit

VC-10: You're saying the Crew Entry Service Door is forward of the <acronym title="Trans Air (USA)">P6</acronym> panel, and forward of station 405? That would put it somewhere outboard of the flight engineer's panel. You're right, I've never seen that configuration. Do you have a reference or pictur...

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by 747Teach
Tue Mar 02, 2004 4:01 am
Forum: Technical/Operations
Topic: Passenger Use Of The 747 Cockpit Exit
Replies: 18
Views: 11943

RE: Passenger Use Of The 747 Cockpit Exit

Aa757first: You better go with B747Skipper on this one. Some of these other answers have some bad info. First, the 100, 200 and <acronym title="SATA Air Azores (Portugal)">SP</acronym> have the small door on the right (and sometimes left) side of the upper deck. This is called the Crew Entry Service...

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by 747Teach
Thu Feb 26, 2004 2:08 am
Forum: Technical/Operations
Topic: DC-10-30 Engine Question.
Replies: 12
Views: 5119

RE: DC-10-30 Engine Question.

Avioniker: "By the way, <acronym title="Northwest Airlines (USA)">NW</acronym> flies -40's, sorry." The Fleet Summary as of Jan. 01, 2004 lists 22 DC-10-30 aircraft in operation with the NWA fleet. There are no DC-10-40 aircraft listed in the operational fleet. There are two -40 aircraft, 1143 and 1...

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by 747Teach
Wed Feb 18, 2004 9:23 pm
Forum: Technical/Operations
Topic: 744 Upper Deck Exit Question
Replies: 3
Views: 3428

RE: 744 Upper Deck Exit Question

SafteyDude: Those are pressure relief panels. "Any attempt to pressurize the cabin when the door is not fully latched will overcome the spring load, cause the panels to open, and prevent pressurization." 747-400 AMM, 52-23-00, Pg. 1, Para. 3. Regards,

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by 747Teach
Sat Feb 14, 2004 12:38 am
Forum: Technical/Operations
Topic: MIL SPec Number Help
Replies: 5
Views: 4040

RE: MIL SPec Number Help

UAL Bagsmasher: Try MIL-C-10382C or MIL-C-11796B. These are for petrolatum, another name for Petroleum Jelly. Search for petrolatum, lubricant, or corrosion inhibitor. Regards,

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by 747Teach
Thu Feb 12, 2004 2:16 am
Forum: Technical/Operations
Topic: What's This Object On The 747-SP's Wing?
Replies: 12
Views: 6913

RE: What's This Object On The 747-SP's Wing?

Uhoh, I think they're on to me. Regards,

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by 747Teach
Wed Feb 11, 2004 2:49 am
Forum: Technical/Operations
Topic: What's This Object On The 747-SP's Wing?
Replies: 12
Views: 6913

RE: What's This Object On The 747-SP's Wing?

Mr. Spaceman: The rectangle inboard of the landing lights is actually a conditioned air outlet. The copper colored area is the temperature sensor. By closing the pneumatic isolation valve for the number 3 engine, and opening the pneumatic crossbleeds, cold conditioned air will flow through the pneum...

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by 747Teach
Wed Feb 11, 2004 2:40 am
Forum: Technical/Operations
Topic: Northwest APU's
Replies: 1
Views: 2014

RE: Northwest APU's

Wmupilot: The WOM (Winter Operations Manual) and the ASM (Aircraft Service Manual) give several conditions that apply to operations during cold weather. Aircraft need to be kept warm to prevent water systems from freezing. To answer your question, first, are enough heat carts available? If they are ...

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by 747Teach
Mon Feb 09, 2004 9:29 pm
Forum: Technical/Operations
Topic: DC9 With Jato Bottles?
Replies: 11
Views: 6880

RE: DC9 With Jato Bottles?

M404 and Everyone: As said, the <acronym title="Winona Municipal - Max Conrad Field (ONA), USA - Minnesota">ONA</acronym> DC-9's carried 4 bottles, 2 to a side, under the fairing aft of the wheelwells. Only the bulges where the nozzles were located were visible from the outside, and the bulges were ...

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by 747Teach
Mon Jan 26, 2004 9:24 pm
Forum: Technical/Operations
Topic: Aircraft Disinsections
Replies: 8
Views: 2466

RE: Aircraft Disinsections

Phatfarmlines: Been on Quantas a couple times when they sprayed the cabin prior to deplaning at Sydney. Regards,

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by 747Teach
Fri Jan 23, 2004 5:08 am
Forum: Technical/Operations
Topic: Where's The Wheel Brake
Replies: 9
Views: 3296

RE: Where's The Wheel Brake

H. Simpson: The brakes are operated by depressing the tops of the rudder pedals, as said before. In this aircraft, the nosewheel steering is controlled by the "steering wheel," that you see in the picture. It is not called a tiller on this aircraft, see AMM 32-50-00, page 1 and Figure 1. The parking...

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by 747Teach
Fri Jan 16, 2004 2:19 am
Forum: Technical/Operations
Topic: Turbofans Thrust
Replies: 17
Views: 6990

RE: Turbofans Thrust

Captjetblast: The Pratt & Whitney customer training manual (page 2-11 and 2-78) says the JT-9D-7/A/F/J/R4 engine fan (called the first stage rotor by Pratt) produces 78% of total engine take-off thrust at sea level, standard day. Regards,

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by 747Teach
Thu Jan 15, 2004 2:46 am
Forum: Technical/Operations
Topic: 757 Voltage
Replies: 3
Views: 4799

RE: 757 Voltage

Twistedwhisper: Stockroom computer says the wing mounted lamp for a 757 is a Q4559X, and is 600 watts. Regards,

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by 747Teach
Tue Jan 13, 2004 10:08 pm
Forum: Technical/Operations
Topic: Early Airbus 300 Problems?
Replies: 7
Views: 2717

RE: Early Airbus 300 Problems?

KYIPpilot and Wilcharl: I worked the A300 at Eastern in Miami in late 70's, early 80's. Don't remember any major structural problems with the aircraft that led to accidents. During D checks, we were finding areas of the skin laps that were disbonding, as they were glued together rather than being ri...

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by 747Teach
Tue Jan 13, 2004 9:39 pm
Forum: Technical/Operations
Topic: Airplane Windows
Replies: 5
Views: 23074

RE: Airplane Windows

Bruce, On the 747 aircraft, for example, the windows are made of acrylic plastic. The entire window unit is made up of 3 layers. The outer pane is stretched acrylic, .35 thick. The middle pane is modified acrylic, .22 thick. These two panes make up the transparent portion of the window structure, an...

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by 747Teach
Fri Jan 09, 2004 4:41 am
Forum: Technical/Operations
Topic: "DO NOT Tow" On A330 Nose Wheel Gear.
Replies: 19
Views: 14829

RE: "DO NOT Tow" On A330 Nose Wheel Gear.

CdfMxTech: Effectivity ALL, Revision October 28, 2003. Regards,

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