Search found 8320 matches

by fr8mech
Mon Oct 25, 2021 8:07 pm
Forum: Technical/Operations
Topic: Is it dangerous when aircraft carry fuel in a center tank beneath the passenger cabin?
Replies: 14
Views: 793

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

Center wing tanks are common. The B747 holds a ridiculous amount of fuel in the center tank. The -400 can carry something like 115,000 lbs…maybe more. Both the B757 and the B767 have a center tank…sometimes referred to as the Center Aux tank. Something like 45K & 60K, respectively. Even the B727...

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by fr8mech
Mon Oct 25, 2021 12:09 am
Forum: Technical/Operations
Topic: Could MD-11's used domestically do without the winglets?
Replies: 20
Views: 1814

Re: Could MD-11's used domestically do without the winglets?

747classic wrote:

UPS installed after market blended winglets at the 767-300F's, but from 2019 all new UPS 767-300F's are delivered again without winglets.


My understanding is they’ll be installed at their first ‘C’ check or it’s equivalent.

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by fr8mech
Sun Oct 24, 2021 12:12 am
Forum: Non-Aviation
Topic: Sheriff: Alec Baldwin fired shot on movie set that killed woman
Replies: 171
Views: 5762

Re: Sheriff: Alec Baldwin fired shot on movie set that killed woman

As a pilot in the Air Force, did you personally inspect every load placed into your aircraft, every last minute fix that mechanics made, etc? Mechanics and pilots have a relationship that’s built on trust…and verification. There’s a whole lot of trust built into that signature in the book, but even...

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by fr8mech
Sat Oct 23, 2021 5:31 pm
Forum: Non-Aviation
Topic: Sheriff: Alec Baldwin fired shot on movie set that killed woman
Replies: 171
Views: 5762

Re: Sheriff: Alec Baldwin fired shot on movie set that killed woman

You're in the military. He's an actor. An actor that has handled firearms, prop or not, in the past. I have to agree with Galaxy here…hand me a firearm, and I’m going to check it to determine its condition. Anyone who handles a firearm, prop or not, should have at least a passing familiarity with r...

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by fr8mech
Sat Oct 23, 2021 7:41 am
Forum: Non-Aviation
Topic: Sheriff: Alec Baldwin fired shot on movie set that killed woman
Replies: 171
Views: 5762

Re: Sheriff: Alec Baldwin fired shot on movie set that killed woman

Excuse my ignorance around guns. I'm assuming this is some kind of semi-automatic pistol like a cop would carry. Could it be possible that someone took this off the set to take to say a range. Loaded it will real ammo and left one in the chamber. The movie is set in Kansas in the 1880's. Semi-auto ...

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by fr8mech
Sat Oct 23, 2021 12:15 am
Forum: Non-Aviation
Topic: Stillwater = In America you can't vote once you are arrested ???
Replies: 6
Views: 527

Re: Stillwater = In America you can't vote once you are arrested ???

Also about who can't vote, I really don't get this one : For president in the general election: U.S. citizens residing in U.S. territories Yeah, I don't understand that, either. My father is a US citizen living in Greece, but he can vote in a presidential election, but he woulddn't be able to if he...

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by fr8mech
Fri Oct 22, 2021 3:53 am
Forum: Technical/Operations
Topic: Question For the Mechanics: Which Commercial Aircraft Have Been Easiest and Most Difficult For You to Work On?
Replies: 61
Views: 10137

Re: Question For the Mechanics: Which Commercial Aircraft Have Been Easiest and Most Difficult For You to Work On?

It's all in a day's work. These stories never stop coming in. . I was hunting a leak in the stab compartment of a B747 once; you know, one of those leaks that's there, then not there. I was putting hands on lines and dynamically exercising them, when the intermittent leak became not intermittent an...

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by fr8mech
Fri Oct 22, 2021 3:31 am
Forum: Technical/Operations
Topic: Could MD-11's used domestically do without the winglets?
Replies: 20
Views: 1814

Re: Could MD-11's used domestically do without the winglets?

Starlionblue wrote:
The winglets do have mass, .


Per the AMM, they weigh approximately 450lbs (204kg).

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by fr8mech
Fri Oct 22, 2021 1:57 am
Forum: Technical/Operations
Topic: Could MD-11's used domestically do without the winglets?
Replies: 20
Views: 1814

Re: Could MD-11's used domestically do without the winglets?

Is there even a CDL for that? I know you can for 330/340, 747 and most others with wingtip devices. But my MD11 work was entirely powerplant, so I am a little curious about that. No. The lower winglet assy can be removed, but the upper or main winglet can not. It's a big job, requiring tank dive an...

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by fr8mech
Thu Oct 21, 2021 10:56 am
Forum: Technical/Operations
Topic: Could MD-11's used domestically do without the winglets?
Replies: 20
Views: 1814

Re: Could MD-11's used domestically do without the winglets?

The winglets on an MD11 are a completely different animal than the winglets on a -400.

On the MD, they are structural. On the -400, they are over glorified fairings.

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by fr8mech
Sun Oct 17, 2021 11:32 am
Forum: Technical/Operations
Topic: Question For the Mechanics: Which Commercial Aircraft Have Been Easiest and Most Difficult For You to Work On?
Replies: 61
Views: 10137

Re: Question For the Mechanics: Which Commercial Aircraft Have Been Easiest and Most Difficult For You to Work On?

Horstroad wrote:
Replace every failed swage fitting with a Rynglok fitting and it will survive the rest of the aircraft. What an amazing and easy to use system.


Rynglok is a beautiful thing. Wish we had them when I was actively wrenching. Back then, permaswage was all the rage.

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by fr8mech
Fri Oct 15, 2021 12:04 am
Forum: Non-Aviation
Topic: Potential for Building a Bridge Over the Yukon River in Dawson City
Replies: 19
Views: 1107

Re: Potential for Building a Bridge Over the Yukon River in Dawson City

The ice bridge at the Yukon River in Dawson City is getting thinner due to climate change and that could cause issues for supporting the weight of trucks and emergency vehicles. Another reason a permnant bridge needs to be built there. That might make the economic case. Only time, and a thorough ec...

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by fr8mech
Thu Oct 14, 2021 9:08 am
Forum: Non-Aviation
Topic: Potential for Building a Bridge Over the Yukon River in Dawson City
Replies: 19
Views: 1107

Re: Potential for Building a Bridge Over the Yukon River in Dawson City

Make an economic case for the bridge.

Just because there isn't one there, doesn't mean there needs to be one there.

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by fr8mech
Sun Oct 10, 2021 8:56 pm
Forum: Technical/Operations
Topic: Does a jetliner need to be taken out of service after one of its engines suffers a compressor stall?
Replies: 2
Views: 900

Re: Does a jetliner need to be taken out of service after one of its engines suffers a compressor stall?

It all depends on what you mean by OOS. You could stall a JT8 or JT9 and have the engine back in service before the ink was dry on the pilot’s side of the logbook. A quick look at the parameters reported, a look in the inlet and exhaust, maybe pull a chip detector (if the book called for it) and you...

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by fr8mech
Sat Oct 09, 2021 5:05 am
Forum: Technical/Operations
Topic: Question For the Mechanics: Which Commercial Aircraft Have Been Easiest and Most Difficult For You to Work On?
Replies: 61
Views: 10137

Re: Question For the Mechanics: Which Commercial Aircraft Have Been Easiest and Most Difficult For You to Work On?

Both Fedex and UPS would be well served if they were to just rewire all their MD-11. Most of your problems would disappear. Given the longevity of Douglas airframes you could get another twenty years out of them easily. Don't think it will happen though. Way more problems with the hydraulic lines. ...

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by fr8mech
Thu Oct 07, 2021 11:06 pm
Forum: Non-Aviation
Topic: What would it take for you to move Jobs
Replies: 29
Views: 1239

Re: What would it take for you to move Jobs

Ive been with my current firm 32 years. Eligible to retire in a couple of more. So, for me to move jobs would take a lot more than just “more money”. What would it take? More money would be nice, but that’s not a deal maker. Between the wife and I, I suspect a paid move to a possible retirement loca...

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by fr8mech
Thu Oct 07, 2021 10:10 pm
Forum: Non-Aviation
Topic: Movie Adaptation of Books
Replies: 26
Views: 757

Re: Movie Adaptation of Books

Absolutely agree - I like the movie, but it misses out so much that the book gives. Which is why I think books are generally better than their movie adaptations. You can add so much more plot line and details to a book. Further, a book allows a certain bit of imagination and fantasy that the movies...

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by fr8mech
Thu Oct 07, 2021 10:07 pm
Forum: Non-Aviation
Topic: Movie Adaptation of Books
Replies: 26
Views: 757

Re: Movie Adaptation of Books

Wow, iPad completely screwed up that post

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by fr8mech
Thu Oct 07, 2021 1:56 am
Forum: Non-Aviation
Topic: Movie Adaptation of Books
Replies: 26
Views: 757

Movie Adaptation of Books

With notable exceptions...I'm sure you'll fill in your own...movie adaptations of books typically don't live up to the book. I bring this up because I just watched Without Remorse. Now, I'm a fan of Tom Clancy's books and thought Without Remorse was one of his best. The only things Without Remorse (...

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by fr8mech
Sun Oct 03, 2021 7:22 pm
Forum: Technical/Operations
Topic: UPS 747 takeoff without flap fairing
Replies: 22
Views: 2897

Re: UPS 747 takeoff without flap fairing

Damned things get damaged all the time. FOD, ground equipment, gremlins, etc. Take it off and fly the aircraft. Repair the fairing ans install it when you can get the aircraft and fairing back together

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by fr8mech
Sun Oct 03, 2021 6:34 pm
Forum: Technical/Operations
Topic: Which airliners have ram air turbines. Which power hydraulics and which provide electricity?
Replies: 31
Views: 2214

Re: Which airliners have ram air turbines. Which power hydraulics and which provide electricity?

If I understand comments from some of the experts on here, it was impossible to convert them. Oh, I wouldn’t say impossible. I’d say way too cost prohibitive to even consider it. Well, I supposed you could take the airframe apart, right back to a million separate parts and rebuild it …. at a cost o...

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by fr8mech
Sun Oct 03, 2021 3:05 pm
Forum: Technical/Operations
Topic: Which airliners have ram air turbines. Which power hydraulics and which provide electricity?
Replies: 31
Views: 2214

Re: Which airliners have ram air turbines. Which power hydraulics and which provide electricity?

CrewBunk wrote:
If I understand comments from some of the experts on here, it was impossible to convert them.


Oh, I wouldn’t say impossible. I’d say way too cost prohibitive to even consider it.

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by fr8mech
Sun Oct 03, 2021 3:03 pm
Forum: Technical/Operations
Topic: Landing lights question
Replies: 12
Views: 1984

Re: Landing lights question

Don’t know if you can see the landing light from the passenger cabin. You can see the wing inspection light though. You may not be able to see the actual fixture, but you can certainly see the light, especially in precipitation. Of course, I’m referring to wing root mounted lights. Fuselage, may be...

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by fr8mech
Sun Oct 03, 2021 2:56 pm
Forum: Non-Aviation
Topic: How many returns does a businessman has to file in your country ?
Replies: 15
Views: 757

Re: How many returns does a businessman has to file in your country ?

US I’m not a small business owner but I’m fairly confident in saying that a small business owner will file at least 4 forms. Federal and State as an individual. Federal and State as a business. That is assuming the state you’re doing business in, or are incorporated in requires a tax form. Though a ...

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by fr8mech
Sun Oct 03, 2021 2:30 pm
Forum: Technical/Operations
Topic: Is innovation declining?
Replies: 89
Views: 4630

Re: Is innovation declining?

"The advancement of the arts, from year to year, taxes our credulity and seems to presage the arrival of that period when human improvement must end." ~ Henry Ellsworth, Patent Office Commissioner, 1843 Just because a new aircraft looks like old aircraft doesn’t mean it’s not innovative, i...

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by fr8mech
Fri Oct 01, 2021 5:41 pm
Forum: Technical/Operations
Topic: Which airliners have ram air turbines. Which power hydraulics and which provide electricity?
Replies: 31
Views: 2214

Re: Which airliners have ram air turbines. Which power hydraulics and which provide electricity?

For 767 (I assume same for 757) the RAT drives the center hydraulic, and the hydraulic motor generator gives out electricity from hydraulic power. No, on both the B757 and B767 the flight controls are powered directly by the RAT. Our B767's do have a Hydraulic Motor Generator (HMG) and does run off...

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by fr8mech
Fri Oct 01, 2021 5:37 pm
Forum: Technical/Operations
Topic: If snubbers failed to stop wheel rotation during retraction, would this adversely affect the airplane?
Replies: 8
Views: 1246

Re: If snubbers failed to stop wheel rotation during retraction, would this adversely affect the airplane?

vikkyvik wrote:
Is the cockpit crew able to feel it, or is there a warning of some sort?


There is no indication on the flight deck.

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by fr8mech
Fri Oct 01, 2021 4:58 am
Forum: Technical/Operations
Topic: If snubbers failed to stop wheel rotation during retraction, would this adversely affect the airplane?
Replies: 8
Views: 1246

Re: If snubbers failed to stop wheel rotation during retraction, would this adversely affect the airplane?

The reason you want to stop the nose wheels...and the main wheels, for that matter...from spinning in the wheel wells is to prevent damage should a tire fail. That having been said, we do replace snubbers on occasion. It's usually when the flight crew writes up that the nose wheels continued to spin...

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by fr8mech
Fri Oct 01, 2021 12:00 am
Forum: Technical/Operations
Topic: Which airliners have ram air turbines. Which power hydraulics and which provide electricity?
Replies: 31
Views: 2214

Re: Which airliners have ram air turbines. Which power hydraulics and which provide electricity?

For 767 (I assume same for 757) the RAT drives the center hydraulic, and the hydraulic motor generator gives out electricity from hydraulic power. No, on both the B757 and B767 the flight controls are powered directly by the RAT. Our B767's do have a Hydraulic Motor Generator (HMG) and does run off...

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by fr8mech
Thu Sep 30, 2021 3:48 am
Forum: Technical/Operations
Topic: Which airliners have ram air turbines. Which power hydraulics and which provide electricity?
Replies: 31
Views: 2214

Re: Which airliners have ram air turbines. Which power hydraulics and which provide electricity?

The B767 and The B757 have a RAT that drives the center hydraulic system to provide power for the flight controls. The RAT on the A300 provides power to the yellow hydraulic system for the flight controls. The MD11 has an Air Driven Generator that provides AC power to the #1 auxiliary hydraulic pump...

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by fr8mech
Wed Sep 29, 2021 12:41 am
Forum: Non-Aviation
Topic: CITGO is Top Tier gasoline?
Replies: 41
Views: 1969

Re: CITGO is Top Tier gasoline?

Am I the only one who's never had "bad gas" in the thousands of times they've filled up? I've never even heard of bad gasoline in the developed world. Been putting gasoline in my cars since 1985. Been putting it in yard equipment since 1996. Never had a "bad batch of gas". I buy...

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by fr8mech
Tue Sep 28, 2021 8:47 pm
Forum: Non-Aviation
Topic: Minneapolis police to curb minor traffic stops
Replies: 43
Views: 2584

Re: Minneapolis police to curb minor traffic stops

[quote="N1120A"]The police aren't supposed to be tax collectors...I thought you pretended to be a libertarian...[/quote] Did I write anywhere in my post that I supported the concept, or did you just assume I did? [quote="N1120A"]The concept that an air freshener warrants a stop i...

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by fr8mech
Tue Sep 28, 2021 3:43 pm
Forum: Non-Aviation
Topic: CITGO is Top Tier gasoline?
Replies: 41
Views: 1969

Re: CITGO is Top Tier gasoline?

Here’s the dirty secret, that we intuitively know is not a secret, but the oil companies/distributors/gas stations don’t want you to “know”; gasoline is a commodity . So long as the gasoline meets the minimum standards for the octane rating posted, it will perform the same as the gasoline from the g...

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by fr8mech
Mon Sep 27, 2021 12:14 pm
Forum: Technical/Operations
Topic: A330 Rod Assy we cant figure out what its for.
Replies: 4
Views: 990

Re: A330 Rod Assy we cant figure out what its for.

A picture would be nice. Maybe a part number?

Orientation? Fore/aft? Left/right? Up/down?

Length, diameter?

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by fr8mech
Sat Sep 25, 2021 1:23 am
Forum: Non-Aviation
Topic: Some Observations about Greece
Replies: 10
Views: 1050

Re: Some Observations about Greece

I used to spend my summers there when I was growing up and I've been back a few times since then, but it's been a little while since my last visit. I was born in Greece, but my family emigrated from Greece when I was an infant. I spent every summer from when I was 5 to 17 in Greece. I've been there...

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by fr8mech
Fri Sep 24, 2021 9:20 am
Forum: Non-Aviation
Topic: Some Observations about Greece
Replies: 10
Views: 1050

Re: Some Observations about Greece

The latest we heard about Greece were the massive wildfires in August, unfortunately. My father and his caretaker both spoke a little bit about it, but I didn't see any of it, and didn't notice any real talk about it. I do recall my dad saying that he could smell the smoke when the fires were activ...

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by fr8mech
Fri Sep 24, 2021 2:59 am
Forum: Non-Aviation
Topic: (Famous) Cities / Places / Sights News, Discussion and Questions Thread - 2021
Replies: 38
Views: 2786

Re: Idea for an Observation Tower in Fort Worth

There should be an observation tower or observation wheel built in Downtown Fort Worth or close to Downtown as the city currently does not have such an attraction. / Just because it doesn't have one, doesn't mean it needs one. What, exactly, would you be looking at? I lived in the DFW area; there r...

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by fr8mech
Fri Sep 24, 2021 12:30 am
Forum: Non-Aviation
Topic: Some Observations about Greece
Replies: 10
Views: 1050

Re: Some Observations about Greece

Is there still a lot of civil unrest? Or have things settle down a bit. The last time I was in Greece was about ten years ago. It was at the height of the Greece debt crisis and saw some quite heavy protests. Not following Greece al that much, I am afraid, but still one of the nicest countries to v...

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by fr8mech
Thu Sep 23, 2021 6:40 am
Forum: Non-Aviation
Topic: Some Observations about Greece
Replies: 10
Views: 1050

Some Observations about Greece

Took a trip to visit my dad in Greece last week. I try to go every year, but of course, last year was a bust. My time was spent in Athens and some of the suburbs south of Athens, including the old tourist area, Glyfada. I thought I'd pass on a few observations. Maybe stimulate a little conversation....

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by fr8mech
Tue Sep 14, 2021 11:24 am
Forum: Technical/Operations
Topic: In revenue service, could the DC-10 land without using reverse thrust?
Replies: 22
Views: 2518

Re: In revenue service, could the DC-10 land without using reverse thrust?

Every type I’ve worked on allowed a reverser to be deferred. None allowed all the reverser to be deferred. I seem to recall the DC8 allowed one per wing, but I’m fuzzy on that. A quick correction, the B747 (all models) 2 reversers may be MEL’d so long as the inoperative reversers are on symmetrical...

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by fr8mech
Mon Sep 13, 2021 5:42 pm
Forum: Technical/Operations
Topic: In revenue service, could the DC-10 land without using reverse thrust?
Replies: 22
Views: 2518

Re: In revenue service, could the DC-10 land without using reverse thrust?

Can the AC be dispatched with either #1 or #3 inop? How many airliners have thrust reverse on MEL for dispatch? Or does this vary by the conditions for a given flight? (Better way of asking: What aircraft can be dispatched on a 121 with all T/R inop?) Any of the 3 can be deferred. Every type I’ve w...

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by fr8mech
Mon Sep 13, 2021 11:34 am
Forum: Technical/Operations
Topic: In revenue service, could the DC-10 land without using reverse thrust?
Replies: 22
Views: 2518

Re: In revenue service, could the DC-10 land without using reverse thrust?

3 installed, 2 required. One can be put on MEL.

But, as Starlionblue indicated, the aircraft are certified to stop without their use.

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by fr8mech
Mon Sep 06, 2021 3:47 pm
Forum: Technical/Operations
Topic: If a commercial pilot lost all nav instruments, would that be a MAYDAY or PAN situation or neither?
Replies: 21
Views: 2071

Re: If a commercial pilot lost all nav instruments, would that be a MAYDAY or PAN situation or neither?

IAHFLYR . . ."no-gyro vectors"? What does that mean. As I recall from the “I want to learn to fly” period of my life, in a “no-gyro” approach, you have a total or partial flight instrumentation failure, ATC will provide you all the instruction and guidance you need to get on the ground. T...

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by fr8mech
Sat Sep 04, 2021 7:08 pm
Forum: Technical/Operations
Topic: What are the pros/cons of various airliner types to the situation of runaway trim and manual trimming?
Replies: 7
Views: 851

Re: What are the pros/cons of various airliner types to the situation of runaway trim and manual trimming?

The large manual trim wheels went away with the B727 or the early B737, if I’m not mistaken. On the Boeing’s, you stop a runaway trim by flipping the Stab Trim cutout switches. This kills hydraulic power to the stab motors. Then you trim with the alternate trim, which is an electric trim. When I get...

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by fr8mech
Fri Sep 03, 2021 6:27 pm
Forum: Non-Aviation
Topic: Skyscraper Fire in Milan
Replies: 15
Views: 1182

Re: Skyscraper Fire in Milan

What I find peculiar, and the article touched on this, was that the fire extension went down. Fires don’t typically do that.

This cladding stuff seems to be more trouble than it’s worth if it can provide an extension path for the fire.

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by fr8mech
Thu Sep 02, 2021 4:13 am
Forum: Technical/Operations
Topic: What are the three vertical lines on the MD-11 radome?
Replies: 7
Views: 1978

Re: What are the three vertical lines on the MD-11 radome?

Lightning strips or diverters. In theory they reduce the damage done by lightning strikes.

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by fr8mech
Tue Aug 31, 2021 10:03 pm
Forum: Technical/Operations
Topic: Why were/are there many shady airlines in some 3rd world countries?
Replies: 16
Views: 3329

Re: Why were/are there many shady airlines in some 3rd world countries?

Some might argue that Tower Air was a shady airline in a first world country. They operated their hub out of an abandoned Pan Am hangar. One person said it was a miracle they never had a crash. Reminds me of an experience my wife and I had on an ATH/JFK trip on Tower. It was our first trip to Greec...

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by fr8mech
Thu Aug 26, 2021 9:12 pm
Forum: Non-Aviation
Topic: Courts in Nova Scotia urged (required?) to consider race when sentencing
Replies: 50
Views: 1755

Re: Courts in Nova Scotia urged (required?) to consider race when sentencing

I get what you’re saying - it’s racist to give white people more lenient punishments than black people for the same crimes. Correct. Glad we agree on this point. We don’t agree on much…glad you’re onboard. The ruling's goal is to level the playing field By basing sentences, in part, on race? They a...

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by fr8mech
Thu Aug 26, 2021 8:34 am
Forum: Non-Aviation
Topic: Almost one in five hand sanitizers in the US contain carcinogen, benzene
Replies: 24
Views: 2456

Re: Almost one in five hand sanitizers in the US contain carcinogen, benzene

soap and water doesn't kill germs. From the CD website: Lathering with soap and scrubbing your hands for 20 seconds is important to this process because these actions physically destroy germs and remove germs and chemicals from your skin. When you rinse your hands, you wash the germs and chemicals ...

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by fr8mech
Thu Aug 26, 2021 1:54 am
Forum: Non-Aviation
Topic: Courts in Nova Scotia urged (required?) to consider race when sentencing
Replies: 50
Views: 1755

Re: Courts in Nova Scotia urged (required?) to consider race when sentencing

You want to throw out red herrings Actually, they're not red herrings. You imply that racist action by the government is OK as long as the racist action is used to combat racism. I just pointed out some instances where the government has been wrong. As nice as that law is , it takes trust in the in...

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