Search found 8435 matches

by fr8mech
Tue Jan 25, 2022 10:32 pm
Forum: Technical/Operations
Topic: Avionics Bay Access and Pressurization
Replies: 36
Views: 1455

Re: Avionics Bay Access and Pressurization

While I commend their interest in technical and operational issues, some things should never be revealed or discussed in these forums. And, this isn’t one of them. As stated before and linked, there is plenty of open-source material available on the internet that shows all of the stuff being discus...

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by fr8mech
Tue Jan 25, 2022 7:30 pm
Forum: Technical/Operations
Topic: Avionics Bay Access and Pressurization
Replies: 36
Views: 1455

Re: Avionics Bay Access and Pressurization

bigb wrote:
Next time I do a walk around of the whale I will take a look, but I do know there is a dress panel aft of the nose gear.


I’ll walk out to one tonight. Should have one in the barn, with the NWW doors open. Might even have a stand in the wheel well.

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by fr8mech
Tue Jan 25, 2022 6:56 pm
Forum: Technical/Operations
Topic: Avionics Bay Access and Pressurization
Replies: 36
Views: 1455

Re: Avionics Bay Access and Pressurization

Am I sure about that? with about 12,000 hours on various models through the 100, 200, SP, 300 and 400 freighters and PAX versions, YES! I would suggest it's kind of like your revelation on the MD-11 Sadly, I have even had the pleasure to crawl up there to get into the aircraft. An actual door? Not ...

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by fr8mech
Tue Jan 25, 2022 2:21 am
Forum: Technical/Operations
Topic: Avionics Bay Access and Pressurization
Replies: 36
Views: 1455

Re: Avionics Bay Access and Pressurization

The 747 one is shown quite well on a Sam Chui video where they climb up an old stored one in the desert, they climb up on the nose gear and them up into the EE bay and then through a panel in the floor of the old first class. Back when I was a newly minted, youthful and energetic A&P, I would c...

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by fr8mech
Mon Jan 24, 2022 10:28 pm
Forum: Technical/Operations
Topic: Avionics Bay Access and Pressurization
Replies: 36
Views: 1455

Re: Avionics Bay Access and Pressurization

Yeah, the Whale has one. A friend, who was a wrench on it at UPS loved to tell of diverting into King Salmon and using it as a way to the ground to order fuel. No stairs available. Yes, but that is the normal E&E access in the floor of the main deck. Six’ish feet below that is the exterior E&am...

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by fr8mech
Mon Jan 24, 2022 9:57 pm
Forum: Technical/Operations
Topic: Pilot retracted flaps one notch just before landing
Replies: 17
Views: 2639

Re: Pilot retracted flaps one notch just before landing

At my airline all FOQA data flagged for exceedances was sent to a Union safety panel who reviewed it then contacted the crew members to verify what had actually happened, unless something was bent management never got involved, that was a contractual agreement We use the FOQA data to maintain the a...

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by fr8mech
Mon Jan 24, 2022 9:11 pm
Forum: Technical/Operations
Topic: Quality of Aviation Consultants around the World
Replies: 2
Views: 334

Re: Quality of Aviation Consultants around the World

A consultant is only as good as the folks that check up on them and call them on their BS. Fire off a note to the editor and tell him the guy is a fraud…with links providing the correct information. Every now and again you get some talking head that really is talking out his rear, but we’re fortunat...

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by fr8mech
Mon Jan 24, 2022 9:08 pm
Forum: Technical/Operations
Topic: Avionics Bay Access and Pressurization
Replies: 36
Views: 1455

Re: Avionics Bay Access and Pressurization

On the 747, there is a bulkhead door in the fwd wheel well. No warning light in the cockpit. Sure about that? MD11 has one that I only found out about recently. Never saw one on a B747. As stated, just about every ATC aircraft has an E&E compartment, or two, and as far I’ve come across, they ar...

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by fr8mech
Mon Jan 24, 2022 9:01 pm
Forum: Technical/Operations
Topic: Idle thrust - questions
Replies: 8
Views: 656

Re: Idle thrust - questions

iPad went a little screwy. If a jet engine is at idle thrust, does the thrust level have to be adjusted for ground, air, altitude? The Electronic Engine Control manages the the various environmental and aircraft inputs to control idle speed. On older engines, the jet fuel control or hydraulic-mechan...

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by fr8mech
Mon Jan 24, 2022 8:52 pm
Forum: Technical/Operations
Topic: Idle thrust - questions
Replies: 8
Views: 656

Re: Idle thrust - questions

boacvc10 wrote:
So what is "idle thrust" in practical terms?


Probably not the technical definition, but one that can be used is: the minimum speed or power setting an engine can run and be stable. I guess you can add the provision that it can carry a minimum load, but starting to get more technical.

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by fr8mech
Mon Jan 17, 2022 12:42 pm
Forum: Technical/Operations
Topic: Tu-204 requiring no anti-icing system
Replies: 15
Views: 1894

Re: Tu-204 requiring no anti-icing system

Sounds a bit dodgy to me. With all due respect to Russian technology, they would be the last manufacturer I would think would have advanced technology to the point of being able to avoid physics. Oh, I don’t know that they’re avoiding physics. Maybe it’s the routing of the pneumatic supply duct tha...

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by fr8mech
Sat Jan 15, 2022 9:56 pm
Forum: Technical/Operations
Topic: What are these sort of vertical lines above the leading edge of this 747.
Replies: 3
Views: 1305

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

They are indeed panel “seams”. Fun fact: we referred to the ones over the engines as “gap covers”, and they had about 100 screws of 4 or 5 different lengths and the had phenolic fillers in some areas. Fun. We had those things up all the time. Wire bundles make some 90 degree bends under the cover an...

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by fr8mech
Sat Jan 15, 2022 6:27 pm
Forum: Non-Aviation
Topic: Sheriff: Alec Baldwin fired shot on movie set that killed woman
Replies: 303
Views: 17081

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

Do Not assume someone who has no reason to know these things would or even should. This is a glaring mistake I see the gun people in this thread making, and it raises good questions about the general level of responsibility. You’re right. And, whenever I take a non-shooter to the range, we go over ...

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by fr8mech
Wed Jan 12, 2022 9:30 pm
Forum: Technical/Operations
Topic: What is this scaffolding for? (LAX)
Replies: 9
Views: 1374

Re: What is this scaffolding for? (LAX)

My guess is that it’s used to shore a wing when certain maintenance tasks are performed. Looks just like what we’ve built to just that. If I get a chance when I get to work, I’ll look up some of the tasks. I’m thinking outboard aileron change on an MD11, something about fuel tank access on a -8 ring...

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by fr8mech
Wed Jan 12, 2022 2:40 am
Forum: Technical/Operations
Topic: CFM56-7B: white drops on the outboard side of exhaust plugs
Replies: 6
Views: 1403

Re: CFM56-7B: white drops on the outboard side of exhaust plugs

Seen it plenty of times on plenty of different aircraft types. It's not fuel or hydraulic fluid, so, past those considerations, never gave it a another thought. But, a guess would be some of that dry wash wax/compound that's used to clean the aircraft. After shutdown, the radient heat may cause it t...

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by fr8mech
Mon Jan 10, 2022 12:35 pm
Forum: Non-Aviation
Topic: Movie Adaptation of Books
Replies: 54
Views: 1924

Re: Movie Adaptation of Books

I think the biggest "Problem" with Clancy adaptations is that they do have so, so much story in them. Even the shorter books, like Patriot Games, have way, way more going on that what you can cram into a two hours movie. I always thought that in today´s environment, where a season doesn´t...

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by fr8mech
Sun Jan 09, 2022 11:41 pm
Forum: Non-Aviation
Topic: Fire at a New York City Apartment Building
Replies: 9
Views: 753

Re: Fire at a New York City Apartment Building

From Google Maps, this looks like a relatively new building…at least compared to those around it. So, yes, code violation questions will be asked. The other questions should, among other things, revolve around the occupancy load of the building and various apartments and the actual load of those apa...

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by fr8mech
Sun Jan 09, 2022 12:05 pm
Forum: Non-Aviation
Topic: Covid19 Vaccine Experience Thread
Replies: 152
Views: 17165

Re: Covid19 Vaccine Experience Thread

I got the booster 2 weeks ago, Pfizer, and my arm hurt for a day, maybe 36 hours. Nothing else.

Though, I get some pain right at the injection site every now and again…weird.

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by fr8mech
Fri Jan 07, 2022 1:02 pm
Forum: Technical/Operations
Topic: Emergency Equipment at Airports
Replies: 7
Views: 1866

Re: Emergency Equipment at Airports

Pedantic alert! A fire truck has an aerial. It’s fire apparatus in the general, then engines with pumps, trucks with aerial devices and the rest of it. This was hammered into me decades ago. /P Well, if we’re really going to be pedantic, a ladder truck carries ladders and tools, and an aerial truck...

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by fr8mech
Thu Jan 06, 2022 10:51 pm
Forum: Technical/Operations
Topic: Source of bleed air (CFM engine)?
Replies: 4
Views: 955

Re: Source of bleed air (CFM engine)?

By the way, temperature is usually used as a parameter to moderate HPC air. HPC air can easily over-temp the pneumatic system. The HP Controller and/or PRSOV, or equivalent, will choke down the air to keep the temperature within acceptable limits. I guess I should elaborate, in the interest of clar...

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by fr8mech
Thu Jan 06, 2022 9:28 pm
Forum: Technical/Operations
Topic: Source of bleed air (CFM engine)?
Replies: 4
Views: 955

Re: Source of bleed air (CFM engine)?

Normally the bleed air is extracted from the low pressure compressor No. Bleed air is almost always taken from the high pressure compressor, but from an early stage…5th on the CFM, as I recall. This is low pressure air. It is supplemented, at idle or under heavy demands, by high stage air…maybe 9th...

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by fr8mech
Thu Jan 06, 2022 6:16 am
Forum: Technical/Operations
Topic: Overconfidence In Aviation Technology
Replies: 27
Views: 1805

Re: Overconfidence In Aviation Technology

I'm not sure where you're headed here. There are plenty of checks and balances in aviation. Trust but verify is very much alive in aviation. Certain mechanic's work is checked by an inspector. Pilots perform a walk around and pre-flight in an attempt to verify the aircraft is airworthy. Our non-cert...

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by fr8mech
Sat Jan 01, 2022 9:12 am
Forum: Technical/Operations
Topic: DIY project !!! ... an ancient Cessna 16-17 years AOG
Replies: 17
Views: 2110

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

I don’t think it would interest an A&P, just too much work. Really? I know quite a few A&P's that have taken on restoration projects. It's a hobby. Not for me, but to each his own. Logbooks are missing. I'm sure that can be overcome. This wouldn't be the first aircraft ever salvaged. And, d...

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by fr8mech
Sat Jan 01, 2022 4:41 am
Forum: Technical/Operations
Topic: DIY project !!! ... an ancient Cessna 16-17 years AOG
Replies: 17
Views: 2110

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

I didn't watch the whole video, just kinda jump in in places, so I may not have the whole story, plus I don't work in general aviation, so I don't know all those FAR's. I am just a viewer ... is there any Salvage value to the parts? Probably not for use on another aircraft. The interior has been exp...

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by fr8mech
Sat Jan 01, 2022 1:48 am
Forum: Technical/Operations
Topic: DIY project !!! ... an ancient Cessna 16-17 years AOG
Replies: 17
Views: 2110

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

Walk away. The guy said the engines are "locked up". I heard "frozen by corrosion". Truth is, I wouldn't worry too much about the airframe and interior, that's straight forward restoration work. That would be a good project. But, the engines? Those are probably good for boat anch...

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by fr8mech
Tue Dec 28, 2021 5:06 pm
Forum: Technical/Operations
Topic: 737 MAX APU Inlet Door
Replies: 30
Views: 3544

Re: 737 MAX APU Inlet Door

I don’t know any aircraft that allows you to use APU bleed air and engine bleed air to the packs simultaneously Which type is this ? You can’t use the air simultaneously, but the sources can be available simultaneously. At idle, most engines barely produce enough air to keep the packs running with ...

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by fr8mech
Mon Dec 27, 2021 11:38 am
Forum: Non-Aviation
Topic: Acupuncture & herbal medicine - is it hokum?
Replies: 21
Views: 1119

Re: Acupuncture & herbal medicine - is it hokum?

Several years ago I had a shooting pain originating in my lower back and running down my left leg…sometimes as far as the calf. Self-diagnosed as Sciatica. Fine. As I was running 5 or 6 miles every other day, I cut that back a little, and started stretching more, and paying a little more attention t...

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by fr8mech
Wed Dec 22, 2021 2:41 pm
Forum: Technical/Operations
Topic: Airspeed lost
Replies: 11
Views: 1403

Re: Airspeed lost

I should have mentioned it was a ground test and not per the AMM. The fella asking the question is a senior engineer I trust completely and he said it was a regulatory requirement (Transport Canada). Ok, so where is he getting the test procedures and the target parameters from? When we perform a ta...

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by fr8mech
Wed Dec 22, 2021 7:23 am
Forum: Non-Aviation
Topic: What Changes would you like to see in 2022
Replies: 54
Views: 3281

Re: What Changes would you like to see in 2022

Kiwirob wrote:
I would like to see my local McDonalds bring back sausage and egg mcmuffins, they replaced the sausage with a beef patty, it's not right!


While I prefer the Egg McMuffin with the piece of Canadian Ham, this news is disturbing and scandalous.

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by fr8mech
Wed Dec 22, 2021 6:02 am
Forum: Non-Aviation
Topic: Would you alert Target to their $75 mistake?
Replies: 27
Views: 1907

Re: Would you alert Target to their $75 mistake?

Kiwirob wrote:
For a small business, I would let them know straight away, unless the service was terrible then I might not bother.


Ahh, retributive justice. Nice.

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by fr8mech
Wed Dec 22, 2021 5:52 am
Forum: Non-Aviation
Topic: Would you alert Target to their $75 mistake?
Replies: 27
Views: 1907

Re: Would you alert Target to their $75 mistake?

We bought some new sofa's a couple of years ago, when they were delivered the delivery guys also dropped off two quite expensive lamps which were also address to us. My wife called the shop and enquired about the lamps, they had no record of them so we kept them. No issue there. The effort to corre...

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by fr8mech
Wed Dec 22, 2021 3:55 am
Forum: Technical/Operations
Topic: Airspeed lost
Replies: 11
Views: 1403

Re: Airspeed lost

I remember when we were doing RVSM certifications on our DC8, the air data settings appeared way out whack. Varying airspeeds at different altitudes, some seemed very extreme. But, alas, that was over 15 years ago, so I really don’t recall any numbers. But, to the OP, as stated, it’s very possible t...

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by fr8mech
Wed Dec 22, 2021 3:46 am
Forum: Non-Aviation
Topic: What Changes would you like to see in 2022
Replies: 54
Views: 3281

Re: What Changes would you like to see in 2022

I would like everyone who claims to be a good Christian, supports Donald Trump, or thinks wealthy white men are one of, or the most, oppressed and discriminated group of people on Earth get taken immediately into the physical presence of their magical old man that lives in the clouds. It would be l...

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by fr8mech
Wed Dec 22, 2021 3:31 am
Forum: Non-Aviation
Topic: Would you alert Target to their $75 mistake?
Replies: 27
Views: 1907

Re: Would you alert Target to their $75 mistake?

Kiwirob wrote:
I'm keeping the money, this is not small retail establishment where $75 is important, this is a giant corporation, I've got no problem getting one over giant corporations.


So, just out of curiosity, what’s the threshold that your integrity kicks-in?

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by fr8mech
Tue Dec 21, 2021 7:29 pm
Forum: Non-Aviation
Topic: What Changes would you like to see in 2022
Replies: 54
Views: 3281

Re: What Changes would you like to see in 2022

But I have to repeat the tetanus vaccine every ten years until I die. Does that mean that I'll never qualify as vaccinated against tetanus? Not at all. You’re vaccinated until the vaccination expires…then you are no longer vaccinated. Why is this hard to comprehend? **FINALLY: Wireless Internet spe...

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by fr8mech
Tue Dec 21, 2021 6:16 pm
Forum: Non-Aviation
Topic: What Changes would you like to see in 2022
Replies: 54
Views: 3281

Re: What Changes would you like to see in 2022

notaxonrotax wrote:
Vaccination status may differ from just "None" or Fully".



If you don’t have the full course of a specified vaccination, you are not vaccinated. End of story.

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by fr8mech
Tue Dec 21, 2021 5:43 am
Forum: Technical/Operations
Topic: Boeing 727 Leading Edge Device Question
Replies: 13
Views: 1932

Re: Boeing 727 Leading Edge Device Question

The 747 Classics, and I assume the newer ones, though I haven’t had the occasion to check, also came out in stages. The #2 and #4 groups came out at flaps 1 and the #1 and #3 groups joined them at flaps 5. (It may have been the other way around, but the point Is the same.) The #4 group, most inboard...

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by fr8mech
Fri Dec 17, 2021 1:44 am
Forum: Technical/Operations
Topic: Long delayed departure LHR-NAS
Replies: 9
Views: 1829

Re: Long delayed departure LHR-NAS

First original reason, which usually would be technical. You need to diagnose, check the exact element, and hope it would be fixed just by simple replace of element. It's not the case sometimes. It's quite easy to lose hour or two just for that, since sometimes it looks fixing is better than plane ...

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by fr8mech
Thu Dec 16, 2021 6:38 am
Forum: Non-Aviation
Topic: What Changes would you like to see in 2022
Replies: 54
Views: 3281

Re: What Changes would you like to see in 2022

I would like people to stop using the words "fully vaccinated"...you're either vaccinated or not. That's my current trivial pet-peeve.

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by fr8mech
Wed Dec 15, 2021 7:07 am
Forum: Non-Aviation
Topic: Would you alert Target to their $75 mistake?
Replies: 27
Views: 1907

Re: Would you alert Target to their $75 mistake?

(A little bit about my ethical record: Seems to me that you're already ethically compromised so, live it up. Realistically, I'm not sure that the folks at the Target Customer Service counter will be able to anything for you. I suspect you'll get the "dog head cocked to the side" dumb look...

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by fr8mech
Wed Dec 15, 2021 1:37 am
Forum: Technical/Operations
Topic: Diverting back to origin airport
Replies: 9
Views: 1591

Re: Diverting back to origin airport

It's not uncommon for operators to divert back to origin, if the origin is a main base. Maintenance, crews, aircraft, facilities, etc. are available at a base that provide more options for recovery.

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by fr8mech
Sat Dec 11, 2021 12:48 am
Forum: Technical/Operations
Topic: L1011 - High Angle of Attack on approach and landing
Replies: 15
Views: 3203

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

Starlionblue wrote:
you can't tell just by looking from the outside.



Sure you can...if you can discern the attitude of the AOA sensor, you get a good idea of the aircraft's AOA.

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by fr8mech
Tue Dec 07, 2021 8:53 pm
Forum: Non-Aviation
Topic: 80 Years Since Attack on Pearl Harbor
Replies: 25
Views: 1244

Re: 80 Years Since Attack on Pearl Harbor

So, it is. Growing up, we were always reminded of this day, but I guess, as time goes on, certain important events begins to lose their place in the list of important things.

I guess it helps, that now, the belligerents of that particular event are string economic partners and allies.

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by fr8mech
Mon Dec 06, 2021 12:03 pm
Forum: Technical/Operations
Topic: Aircraft External Wires
Replies: 9
Views: 1963

Re: Aircraft External Wires

How much force did those hf antennas have to deal with during flight? I am designing an HF antenna right now (it's an upgraded design based upon G2MQ design of the 1950s) and the droop caused by the structure mass and the wire mass and boom mass for a electrically short Multiband antenna is scary w...

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by fr8mech
Sun Dec 05, 2021 8:47 pm
Forum: Non-Aviation
Topic: Chris Cuomo's Termination From CNN
Replies: 58
Views: 3363

Re: Chris Cuomo's Termination From CNN

I have seen quite a bit of hand-wringing and confusion from friends and relatives over Cuomo's firing Really? I didn’t give it a second thought, because I don’t care about these talking heads. Not one bit. Don’t care about any of them. The guy abused his position and misrepresented himself to his e...

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by fr8mech
Sat Dec 04, 2021 6:22 pm
Forum: Technical/Operations
Topic: Teal Color Inside A320neo Pratt & Whitney Engines
Replies: 27
Views: 5455

Re: Teal Color Inside A320neo Pratt & Whitney Engines

Horstroad wrote:

No It's not


I stand corrected.

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by fr8mech
Sat Dec 04, 2021 3:34 am
Forum: Technical/Operations
Topic: Teal Color Inside A320neo Pratt & Whitney Engines
Replies: 27
Views: 5455

Re: Teal Color Inside A320neo Pratt & Whitney Engines

rjsampson wrote:

Does the this attrition lining extending past the fan, also have the same acoustic dampening properties as the inlet liner forward of the teal liner?


Probably not. The materials would be too different. The abradable liner would be more solid and substantial.

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by fr8mech
Sat Dec 04, 2021 3:17 am
Forum: Technical/Operations
Topic: Teal Color Inside A320neo Pratt & Whitney Engines
Replies: 27
Views: 5455

Re: Teal Color Inside A320neo Pratt & Whitney Engines

I was really surprised that posters were suggesting that the teal liner was an attrition/abradable lining. As you point out, the teal material extends many inches ahead of the fan. So it's not that, folks! Yes, it is. I suspect the reason the liner extends forward of the fan is based on the structu...

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by fr8mech
Tue Nov 30, 2021 4:16 pm
Forum: Non-Aviation
Topic: The newest Republic: Barbados
Replies: 47
Views: 2272

Re: The newest Republic: Barbados

I kinda like the idea of a head of state…a ceremonial leader who, while not ‘of the People’ nor representing the will of the People, represents the People.

The head of government does the dirty work, the head of state sits above it all and does the hand-waving.

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