Search found 708 matches

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by 113312
Sun Jan 16, 2022 2:55 pm
Forum: Technical/Operations
Topic: What are these sort of vertical lines above the leading edge of this 747.
Replies: 3
Views: 1063

Re: What are these sort of vertical lines above the leading edge of this 747.

Yes they are panels and not metal. This is the area that all of the high pressure pneumatic lines run through. That high pressure and high temperature air needs to escape if there is a failure in the pipes so as not to cause structural damage to the wing. Should a duct fail, one or more of these pan...

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by 113312
Thu Jan 13, 2022 6:04 pm
Forum: Technical/Operations
Topic: Are holding patterns used very much anymore and at which airfields?
Replies: 25
Views: 1842

Re: Are holding patterns used very much anymore and at which airfields?

I’d love to see pilots raised on “glass” enter and fly an intersection hold with dual VORs. You are so correct. When I learned to fly, I had to do holding at intersections using a single VOR radio. Also had to use ADF. While we are at it, we had to be able to fly an arc based upon time between segm...

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by 113312
Thu Jan 13, 2022 1:25 pm
Forum: Technical/Operations
Topic: Are holding patterns used very much anymore and at which airfields?
Replies: 25
Views: 1842

Re: Are holding patterns used very much anymore and at which airfields?

Yes, holding patterns are still used. However, some things have changed. You rarely will see a holding pattern flown as part of an instrument approach. A holding pattern might be part of the published procedure but would only be used when radar services are not available or in the rare case of commu...

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by 113312
Mon Jan 03, 2022 8:50 pm
Forum: Technical/Operations
Topic: Fuel Policy and Route to Destination Alternate
Replies: 15
Views: 1483

Re: Fuel Policy and Route to Destination Alternate

I think you're getting too far into the weeds. Remember, alternate fuel is a planning exercise. You cannot make assumptions based upon a pilot request for vectors or different routing during the flight. It also should be considered that failure of communications will result in flying a full approach...

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by 113312
Sat Jan 01, 2022 2:00 pm
Forum: Technical/Operations
Topic: DIY project !!! ... an ancient Cessna 16-17 years AOG
Replies: 17
Views: 1815

Re: DIY project !!! ... an ancient Cessna 16-17 years AOG

I've seen plenty of those poor things are local airports. How much money do you want to spend? A set of engines and props will start around 100k. How about log books? Don't have any? run away. Even if they gave this thing for $1, I don't think you can make it worth fair market value without putting ...

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by 113312
Wed Dec 01, 2021 11:35 am
Forum: Technical/Operations
Topic: L1011 - High Angle of Attack on approach and landing
Replies: 15
Views: 3101

Re: L1011 - High Angle of Attack on approach and landing

The short answer to the original question is aerodynamics, airfoil shape and type, leading and trailing edge lift devices. You get a rough idea of the angle of attack when you consider the attitude combined with the flight path. On a normal ILS, the flight path is -3 degrees.

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by 113312
Sat Nov 27, 2021 2:34 pm
Forum: Technical/Operations
Topic: 757/767 Flap Position Indicator
Replies: 3
Views: 1074

Re: 757/767 Flap Position Indicator

Do you mean the white arcs outside of the degree markings? Yes, that is easy. The indicator actually has two needles, one for the left and one for the right flap. As on all Boeings, the white arcs give the allowable difference between the left and right flap. If there is an asymmetry where the indic...

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by 113312
Mon Nov 15, 2021 3:17 pm
Forum: Technical/Operations
Topic: Is this sound from the APU compressor or the main powerplant compressor?
Replies: 10
Views: 1260

Re: Is this sound from the APU compressor or the main powerplant compressor?

I don't disagree with Aaron 747 but the sound in that video is also a result of the audio limitations of the camera used. It is not linear frequency response and enhances certain frequencies. The sound cannot be from an APU in a 727 because it is shutdown after engine start. It may not be operated i...

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by 113312
Sat Nov 13, 2021 1:42 pm
Forum: Technical/Operations
Topic: Assembling a fleet of used aircraft
Replies: 7
Views: 1665

Re: Assembling a fleet of used aircraft

A lot of valid answers here. I have flown for small outfits where every aircraft was different. Other operators started out with a standard fleet but then added more planes in different configurations. This was not just for small operations, but even large well known ones. For example, a particular ...

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by 113312
Thu Nov 11, 2021 1:32 am
Forum: Technical/Operations
Topic: When pilots speak of a specific type of aircraft as "unforgiving" does that indicate a design flaw?
Replies: 15
Views: 2665

Re: When pilots speak of a specific type of aircraft as "unforgiving" does that indicate a design flaw?

The MD-11 could turn a good landing into something else in a heartbeat. Too many factors to discuss in a forum. Other than KLM and World, they didn't stay with passenger operations very long.

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by 113312
Thu Nov 11, 2021 1:29 am
Forum: Technical/Operations
Topic: When pilots speak of a specific type of aircraft as "unforgiving" does that indicate a design flaw?
Replies: 15
Views: 2665

Re: When pilots speak of a specific type of aircraft as "unforgiving" does that indicate a design flaw?

It's all too real. However, this version of the clip has had frames removed so I can see why you might think it's not real. This was an airport surveillance camera which also is not the best resolution. Colleagues of mine perished in that and very close associates participated in the field investiga...

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by 113312
Thu Nov 04, 2021 11:27 pm
Forum: Technical/Operations
Topic: What causes the pause on some aircraft between the time the nose is lifted off and the mains break free?
Replies: 11
Views: 1694

Re: What causes the pause on some aircraft between the time the nose is lifted off and the mains break free?

In the Boeing 727, for example, the angle of the wing when on all three legs of the landing gear, is a negative angle of attack. No matter how fast you go, it will never lift off unless the nose is raised. Normal pitch rotation rate is 3 degrees per second to a target initial pitch of 15 degrees. It...

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by 113312
Sun Oct 31, 2021 10:28 am
Forum: Technical/Operations
Topic: Did the Pilots forget to retract the landing gears here ?
Replies: 28
Views: 2556

Re: Did the Pilots forget to retract the landing gears here ?

It is also a possibility that there was a malfunction. Although the landing gear all look normal, there could be a logic switch that indicates to the system that one or more gear either are in an "on the ground" condition or that they are not properly tilted for retraction. It is quite unl...

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by 113312
Sat Oct 30, 2021 10:15 am
Forum: Civil Aviation
Topic: FedEx Retires Last DC-10-10 Freighter
Replies: 49
Views: 12757

Re: FedEx Retires Last DC-10-10 Freighter

I recall a TV program that involved an interview of American flight 96, who landed his crippled DC-10 at DTW. His insight into the design of the DC-10 was fascinating: he found it to be as close to a fighter jet as a passenger plane could have been, being very much a product of the McDonnell Aircra...

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by 113312
Wed Oct 27, 2021 3:07 pm
Forum: Technical/Operations
Topic: Duration of 747 Hydraulic Pressure Reduction?
Replies: 7
Views: 802

Re: Duration of 747 Hydraulic Pressure Reduction?

The answer to this is it depends upon the specific aircraft model and which surfaces.

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by 113312
Mon Oct 25, 2021 9:29 pm
Forum: Technical/Operations
Topic: Is it dangerous when aircraft carry fuel in a center tank beneath the passenger cabin?
Replies: 43
Views: 3530

Re: Is it dangerous when aircraft carry fuel in a center tank beneath the passenger cabin?

Most aircraft have centerwing tanks. They may be main tanks or auxiliary tanks. Your concern about the location of that fuel and the remote possibility of a belly landing are overblown. The structure of the wing spar carrythrough is about the strongest part of the aircraft. A full gear up landing in...

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by 113312
Mon Oct 25, 2021 11:07 am
Forum: Technical/Operations
Topic: Questions to get a Type-Rating with Initial.
Replies: 2
Views: 499

Re: Questions to get a Type-Rating with Initial.

What does paragraph (f) say?

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by 113312
Sun Oct 24, 2021 12:45 pm
Forum: Technical/Operations
Topic: What was the most powerful PW JT8D engine ever used on a Boeing 737-100?
Replies: 4
Views: 974

Re: What was the most powerful PW JT8D engine ever used on a Boeing 737-100?

Only 30 were built and I am pretty certain that all had the JT-8d-7 14,000 # thrust powerplants. As to could you install more powerfull variants? Perhaps but what would be the point. The fuel capacity, certified weights and such would be too limiting to take advantage of more thrust. I will look dee...

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by 113312
Sat Oct 23, 2021 8:34 pm
Forum: Technical/Operations
Topic: Video showing Convair 880 flap and speed brake operation
Replies: 6
Views: 1362

Re: Video showing Convair 880 flap and speed brake operation

Not only does the landing aircraft turn into a 707, but these guys fly with their hats on through the whole trip. You only saw that in promo films and stills. There are a couple of quick cuts of the 880 on short approach to LAX.

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by 113312
Wed Oct 20, 2021 2:08 am
Forum: Technical/Operations
Topic: Aircraft that are heavy on the controls or light?
Replies: 13
Views: 1209

Re: Aircraft that are heavy on the controls or light?

Most modern, and all large planes, have artificial feel. Control forces are also mandated in FAR Part 21 standards. However, older planes and particularly general aviation types, have different or no such standards. From my experience, the humble Piper Apache had the highest rudder force required wi...

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by 113312
Tue Oct 19, 2021 2:18 pm
Forum: Technical/Operations
Topic: Any opinions on hydraulic fuses?
Replies: 4
Views: 829

Re: Any opinions on hydraulic fuses?

In the Boeing 727, the "B" hydraulic system had lockout valves in the brake system so that a burst brake line to any single brake would not disable all of the brakes. However, the fix in the DC-10 was really a band aid and only provided a limited salvage of flight control with a leak/loss ...

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by 113312
Thu Oct 14, 2021 8:35 pm
Forum: Technical/Operations
Topic: Was this Boeing 707 takeoff dangerous or only appears so to a non-pilot?
Replies: 8
Views: 2398

Re: Was this Boeing 707 takeoff dangerous or only appears so to a non-pilot?

That is a maximum weight balanced field takeoff. I've done plenty like that in the 727-200, DC-8-63 and others. I will not repeat them here, but look at the performance requirements for a transport aircraft and in particular what is expected if an engine fails after V-1.

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by 113312
Tue Oct 12, 2021 1:27 am
Forum: Travel, Polls & Preferences
Topic: For pilots: Was the DC-10 a joy to fly?
Replies: 7
Views: 2339

Re: For pilots: Was the DC-10 a joy to fly?

It's a pretty good handling honest airplane. You might find responses from L1011 pilots who like the Lockheed better. Most pilots like the planes they fly regularly. The one plane I flew, a lot, that I didn't like was the EMB-110 Bandit. Hunk of junk.

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by 113312
Sat Oct 09, 2021 5:49 pm
Forum: Technical/Operations
Topic: During a standing takeoff on a water-injected aircraft like the early 707, when does the water start?
Replies: 17
Views: 2601

Re: During a standing takeoff on a water-injected aircraft like the early 707, when does the water start?

Use of water/methanol was common on RR Dart power planes like the F-27 as well as many TPE-331 turboprops such as the Metro with the -303 series engine as well as the J-31. The point it to enhance takeoff weight carrying performance in hot/high conditions. Water/Meth is heavy and expensive so is rar...

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by 113312
Wed Aug 18, 2021 12:24 pm
Forum: Technical/Operations
Topic: Could the B727 takeoff in revenue service with a flap setting lower than Flaps 15?
Replies: 7
Views: 1253

Re: Could the B727 takeoff in revenue service with a flap setting lower than Flaps 15?

You NEVER would takeoff at less than Flaps 5 in a B727. It is necessary to have all of the leading edge flaps/slats extended as well as the outboard ailerons unlocked.

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by 113312
Wed Aug 18, 2021 12:16 pm
Forum: Civil Aviation
Topic: 737-200 flight
Replies: 12
Views: 10764

Re: 737-200 flight

I've seen this flying around ( live near CNO).

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by 113312
Fri Jul 23, 2021 2:58 am
Forum: Technical/Operations
Topic: SOP flap/slat movement on the DC-10
Replies: 21
Views: 1712

Re: SOP flap/slat movement on the DC-10

If you look closely to the photograph of the DC-10 Flap/Slat handles, you will see that there are markings for each: Flaps 0/15/22/35/50 and Slats: TO EXT & LAND EXT. The slat handle travels with the flap handle unless it is mechanically unlocked. With regard to the Dial-A-Flap, the selection wh...

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by 113312
Wed Jul 21, 2021 10:52 am
Forum: Technical/Operations
Topic: SOP flap/slat movement on the DC-10
Replies: 21
Views: 1712

Re: SOP flap/slat movement on the DC-10

On the DC-10, the flap and slat handles are mechanically linked. For takeoff, a dial-a-flap setting is calculated and preselected. Preparing for takeoff, the handles are moved to lock into the Dial-A-Flap detent and this extends both the slats and trailing edge flaps. During climbout, the flaps are ...

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by 113312
Mon Jul 19, 2021 8:38 pm
Forum: Technical/Operations
Topic: Reducing to climb power during a turn
Replies: 12
Views: 2026

Re: Reducing to climb power during a turn

Bank angle limitation is a function of airspeed and stall margin.

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by 113312
Mon Jul 19, 2021 8:36 pm
Forum: Technical/Operations
Topic: Do FedEx pilots fly the MD10 and MD11 ?
Replies: 7
Views: 2015

Re: Do FedEx pilots fly the MD10 and MD11 ?

Yes, you got a MD-11 Type rating to fly both the MD-11 and MD10 (both -10 and -30). But a DC-10 rating only let you fly the DC10. What is really strange is that Delta Airlines operated DC-9, MD-88 and MD-90 along with the B717. Pilots checked out on the B717 (which has a cockpit very similar to the ...

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by 113312
Sat Jul 17, 2021 6:19 pm
Forum: Technical/Operations
Topic: Ground effect during landing
Replies: 6
Views: 1619

Re: Ground effect during landing

I would say aspect ration, wing loading, and residual thrust at flight idle have more to do with a smooth landing than the airfoil profile. I've made really smooth and some firm landings in every type of airplane that I've flown.

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by 113312
Sat Jul 17, 2021 6:13 pm
Forum: Technical/Operations
Topic: Flap movement always in stages?
Replies: 14
Views: 2055

Re: Flap movement always in stages?

It depends upon the aircraft type and if you are speaking of ground or flight operation. For example, on the old 727, you could select Flaps 15 for departure while taxiing out so long as you confirmed that both inboard and outboard sets reached 15 degrees and all of the LED segments indicated GREEN....

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by 113312
Sat Jul 17, 2021 6:01 pm
Forum: Technical/Operations
Topic: Flap and LED question for 737, 727
Replies: 1
Views: 611

Re: Flap and LED question for 737, 727

The answer is yes, the trailing edge flaps do extend aft.

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by 113312
Thu Jul 01, 2021 7:24 pm
Forum: Technical/Operations
Topic: VOR Decomissioning; aka VOR MON by the FAA
Replies: 4
Views: 1611

Re: VOR Decomissioning; aka VOR MON by the FAA

When I was last in discussion with FAA about this, they said that VOR and NDB facilities would be merely turned off. The reason is that if they decommission them, they are obligated to return the site to it's original condition. This is much more expensive than to simply turn off the power and lock ...

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by 113312
Mon Jun 14, 2021 5:19 pm
Forum: Technical/Operations
Topic: All Cabin Lights on and Window Shades Opened At Night
Replies: 11
Views: 3612

Re: All Cabin Lights on and Window Shades Opened At Night

I have made the same observation of the Asian carriers. While they adhere to their standard procedure, it is far from the safest. Window shades should be open for ground operation, takeoff and landing in case there is a need to evacuate. Passengers and crew need to be able to assess what is outside ...

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by 113312
Thu Jun 10, 2021 2:42 pm
Forum: Technical/Operations
Topic: 727-100 Range
Replies: 17
Views: 4528

Re: 727-100 Range

I did ride on an EA 727-25C from LAX to ATL once. It was substituted for a L-1011! The weights of this variant were higher than the early-25. They did not have aux fuel tanks.

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by 113312
Mon Dec 21, 2020 4:25 pm
Forum: Technical/Operations
Topic: Do cargoliners have locked cockpit doors? Or cockpit doors for that matter?
Replies: 26
Views: 4037

Re: Do cargoliners have locked cockpit doors? Or cockpit doors for that matter?

All of our freighters have doors here at FedEx. This is probably because all of our ships have entry way jump seats, except for the 767's which have the jump seats on the flight deck itself. Several years back we installed locking ballistic doors on the MD10's and 11's. It was an interesting projec...

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by 113312
Tue Nov 17, 2020 3:45 pm
Forum: Civil Aviation
Topic: Very disturbing interaction between ATC & Pilot...
Replies: 35
Views: 12745

Re: Very disturbing interaction between ATC & Pilot...

I don't know the background or experience of this ATC controller. In the past, most had some experience as a pilot especially GA types. However, in the past couple of decades, more personnel were hired with zero prior aviation experience. Clearly this person was not capable of appreciating the persp...

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by 113312
Fri Sep 18, 2020 1:57 pm
Forum: Technical/Operations
Topic: Off position for landing gear handle
Replies: 24
Views: 5373

Re: Off position for landing gear handle

This is different than on the Douglas DC-8. On these planes, the landing gear remain up with hydraulic pressure and the uplocks being a backup. A hydraulic leak/loss is not as critical on the Douglas than it would be on the Boeing series.

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by 113312
Fri Sep 18, 2020 1:51 pm
Forum: Technical/Operations
Topic: 727 fuel burn / tank management
Replies: 34
Views: 5675

Re: 727 fuel burn / tank management

Several issues here. First, in some other aircraft types, a center tank is an .auxiliary tank. Fuel is only loaded and used from it to extend the range of the main tanks. On the B727, except in some modified planes, there are no aux tanks. The larger center tank acts as an aux tank. But it is the ma...

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by 113312
Mon Aug 17, 2020 12:33 am
Forum: Technical/Operations
Topic: LAX Gate 39 - What happened to it?
Replies: 8
Views: 1458

Re: LAX Gate 39 - What happened to it?

Image
I was there recently; a mess

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by 113312
Thu Aug 13, 2020 2:25 am
Forum: Technical/Operations
Topic: Lockheed Super Constellation Powerback?
Replies: 3
Views: 1415

Re: Lockheed Super Constellation Powerback?

Hello! Yes, the Connie, like any big piston airliner was equipped with variable pitch propellers. "Reverse pitch", actually called "beta range", was used during landing to support the braking effort. I am not sure if powerback, while technically possible, was allowed within the ...

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by 113312
Thu Jul 09, 2020 1:09 am
Forum: Technical/Operations
Topic: B727 cockpit
Replies: 31
Views: 4131

Re: B727 cockpit

There actually was a study to convert the 727 to a two man cockpit. However, there were many issues and the complexity and cost of doing so would not be worth the benefit. If you want a more detailed discussion, contact me directly.

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by 113312
Thu Jul 02, 2020 4:41 pm
Forum: Civil Aviation
Topic: LAX-SZX 7/1
Replies: 5
Views: 1232

Re: LAX-SZX 7/1

Xiamen Airlines operating Sunday nights

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by 113312
Sun Jun 28, 2020 8:52 pm
Forum: Civil Aviation
Topic: AA sues DL over the use of the term “Flagship”
Replies: 471
Views: 55580

Re: AA sues DL over the use of the term “Flagship”

I took the callsign "FLAGSHIP" for Dolphin Airways back in 1981. It later was again applied to Express Airlines I as the ATC callsign. Over all of these years, American Airlines never challenged the use of their old trademark. It would seem a weak argument to complain now. Of course, if th...

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by 113312
Wed Dec 18, 2019 5:58 pm
Forum: Technical/Operations
Topic: 737 takeoff on a snowy day: Unusually LONG run-up?
Replies: 6
Views: 2347

Re: 737 takeoff on a snowy day: Unusually LONG run-up?

The flight manual, for nearly every jet aircraft I've flown, has this requirement for these conditions.

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by 113312
Sun Jun 30, 2019 2:13 pm
Forum: Technical/Operations
Topic: 19 seat airliner question
Replies: 35
Views: 4770

Re: 19 seat airliner question

The Approved Flight Manual and certification stipulate the minimum crew (flight crew). The number of passenger seats determines if and how many flight attendants are required. 18 or fewer passenger seats does not require a flight attendant. It does not matter how large the plane is. We used to have ...

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by 113312
Sun Jun 30, 2019 2:05 pm
Forum: Technical/Operations
Topic: 727s Texas to Puerto Rico and viceversa non-stop?
Replies: 12
Views: 2381

Re: 727s Texas to Puerto Rico and viceversa non-stop?

Probably could. There are more than one reclear points so range and divert opportunities exist. Three engines overwater was not uncommon. I operated many charter flights with both 727-100 and -200 aircraft over comparable routes with standard tankage.

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by 113312
Tue Feb 12, 2019 3:40 pm
Forum: Civil Aviation
Topic: 10 years ago - Feb. 12, 2009 - Flight CO3407 crash
Replies: 74
Views: 11155

Re: 10 years ago - Feb. 12, 2009 - Flight CO3407 crash

One thing that has always been pushed to the back of this investigation, and discussion, is the role the FAA had in stall training. For many years, FAA inspectors had insisted that simulator training in stalls be conducted with zero loss of altitude. To achieve that mandate, it became standard pract...

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by 113312
Wed Jan 23, 2019 4:51 pm
Forum: Civil Aviation
Topic: FedEx and UPS 757s
Replies: 29
Views: 6768

Re: FedEx and UPS 757s

The UPS B757 package freighter had a special L-1 entry door.[#] ]

The FedEx fleet is all conversions from passenger versions. They all have the standard L-1 door

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