Search found 7736 matches

by fr8mech
Thu Aug 22, 2019 12:37 am
Forum: Non-Aviation
Topic: Podcasts, Podcasts, Podcasts...What do you listen to?
Replies: 4
Views: 724

Podcasts, Podcasts, Podcasts...What do you listen to?

While, I've always listened to the Art of Manliness podcast while running, I've recently started to listen to more podcasts. Some of the notable ones are: -Art of Manliness, an interesting mix of topics, some really interesting, some really...meh. -Flight Deck Podcast, the official podcast of the Mu...

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by fr8mech
Sun Aug 18, 2019 2:37 pm
Forum: Technical/Operations
Topic: anti-bird grading on engines
Replies: 11
Views: 2324

Re: anti-bird grading on engines

A screen fine enough to adequately protect from birds, would most certainly require anti-ice protection. I’ll add, that a bird-strike capable of damaging an engine, sufficient enough to shut it down, is not a single bird. It’s a flock of birds. That same strike on a screen would likely a) destroy th...

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by fr8mech
Thu Aug 15, 2019 8:23 am
Forum: Non-Aviation
Topic: Maine just gave asylum-seekers temporary housing within a few months - frustrating homeless who remain on waiting lists
Replies: 42
Views: 1870

Re: Maine Gives Housing To 150 illegal Aliens..............

In deed. Figuring that out quicker would be helped a lot by having more judges for it, which would also help the people truly needing asylum, as it would cut down the time of uncertainty. best regards Thomas I don't disagree with you Tommy, but that's not what I meant when I asked the question. Are...

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by fr8mech
Thu Aug 15, 2019 8:13 am
Forum: Non-Aviation
Topic: Maine just gave asylum-seekers temporary housing within a few months - frustrating homeless who remain on waiting lists
Replies: 42
Views: 1870

Re: Maine Gives Housing To 150 illegal Aliens..............

No, that's not what it means. The fact that one is seeking asylum proves that they've not been granted asylum, which means the legality of their presence in this country is questionable. Not quite. An asylum seeker does have some legal status, and is not necessarily an illegal alien. The problem is...

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by fr8mech
Thu Aug 15, 2019 7:46 am
Forum: Technical/Operations
Topic: High pressure hydraulics vs bleed air
Replies: 15
Views: 2485

Re: High pressure hydraulics vs bleed air

Redbellyguppy wrote:
The crj I once flew used pneumatics to actuate the thrust reversers...


The B727, B747-100/200/400, B767 and A300 (PW4000) all have pneumatic reversers. I'm sure there are (were) many others.

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by fr8mech
Thu Aug 15, 2019 7:22 am
Forum: Non-Aviation
Topic: CNN Chris Cuomo loses it over "Fredo"
Replies: 68
Views: 2824

Re: CNN Chris Cuomo loses it over "Fredo"

Republicans have been doing it for years. Y'all weren't outraged then. In fact, it was encouraged and applauded. All the name calling, harassing, bullying, death threats, and murder. Y'all did nothing about it then. Y'all want compassion now. Ain't gonna happen, bub. Look at your party and your med...

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by fr8mech
Thu Aug 15, 2019 6:28 am
Forum: Non-Aviation
Topic: CNN Chris Cuomo loses it over "Fredo"
Replies: 68
Views: 2824

Re: CNN Chris Cuomo loses it over "Fredo"

Mitch McConnell is the actual Senate Majority leader. He decides what bills should be debated and brought up for a vote. Health care? no. Environmental bills? no. Voting rights? no. Gun control? no. Chris Cuomo is a TV personality. He is neither a member of the House nor the Senate nor any state le...

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by fr8mech
Thu Aug 15, 2019 4:34 am
Forum: Non-Aviation
Topic: Towing a Loaded Trailer With a Bus
Replies: 36
Views: 2921

Re: Towing a Loaded Trailer With a Bus

What was it like for the Routemasters to tow the luggage trailers at 70 mph. I'm not sure I understand what you're asking. If the trailer is properly loaded, it's a non-event, assuming the tow vehicle & trailer are capable of, and stable at 70mph. If the tow vehicle can't make 70mph, then it do...

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by fr8mech
Wed Aug 14, 2019 5:14 am
Forum: Non-Aviation
Topic: CNN Chris Cuomo loses it over "Fredo"
Replies: 68
Views: 2824

Re: CNN Chris Cuomo loses it over "Fredo"

Aaron747 wrote:

Which is why Cuomo posted today that he basically embarrassed himself with his overreaction.


Once again, the liberal mea culpa. All is forgiven...here take an Emmy.

He needed to apologize and I'm glad he did.

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by fr8mech
Wed Aug 14, 2019 4:43 am
Forum: Non-Aviation
Topic: CNN Chris Cuomo loses it over "Fredo"
Replies: 68
Views: 2824

Re: CNN Chris Cuomo loses it over "Fredo"

So baiting "card-carrying liberals" is funny when he does not make policy or pass bills who affect the entire country? Why is this even a thing? Yup, it is funny. Let's review: So, you're OK with the actions of the crowd. Shouting for McConnell's death? Yelling profanities in a residentia...

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by fr8mech
Wed Aug 14, 2019 3:45 am
Forum: Non-Aviation
Topic: CNN Chris Cuomo loses it over "Fredo"
Replies: 68
Views: 2824

Re: CNN Chris Cuomo loses it over "Fredo"

So we are supposed to be outraged over a CNN host but not two people who have actual power and deny there is voting issues and health care issues and racial issues? Actually, I'm not outraged. It takes a lot to outrage or offend me. I'm amused. I don't think it's outrage you're witnessing. It's amu...

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by fr8mech
Wed Aug 14, 2019 2:46 am
Forum: Non-Aviation
Topic: CNN Chris Cuomo loses it over "Fredo"
Replies: 68
Views: 2824

Re: CNN Chris Cuomo loses it over "Fredo"

Why do people let words get the best of them? Get over it and move on with your life. Not everyone is going to like you. That's just the way the world works. Legislating manners is a very dangerous road that we don't want to go down. :checkmark: Like I said earlier, be an adult. Someone may try as ...

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by fr8mech
Tue Aug 13, 2019 9:49 pm
Forum: Non-Aviation
Topic: CNN Chris Cuomo loses it over "Fredo"
Replies: 68
Views: 2824

Re: CNN Chris Cuomo loses it over "Fredo"

The question is, did he learn from it? He already apologized for losing it. Will he do it again Ah, yes, the mea culpa. I’m sorry and I promise never to do it again. Only seems to work if you’re of a certain political persuasion. This is politicians being politicians. No it’s not, and you know it. ...

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by fr8mech
Tue Aug 13, 2019 8:48 pm
Forum: Non-Aviation
Topic: CNN Chris Cuomo loses it over "Fredo"
Replies: 68
Views: 2824

Re: CNN Chris Cuomo loses it over "Fredo"

Oh my christ did hell freeze over? Ladies and gentlemen Sean Hannity, unexpected voice of reason: https://twitter.com/seanhannity/status/1161100636995407872?ref_src=twsrc%5Etfw%7Ctwcamp%5Etweetembed&ref_url=https%3A%2F%2Ftwitter.com%2Fseanhannity%2Fstatus%2F1161100636995407872 Hannity is wrong....

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by fr8mech
Tue Aug 13, 2019 7:54 pm
Forum: Non-Aviation
Topic: CNN Chris Cuomo loses it over "Fredo"
Replies: 68
Views: 2824

Re: CNN Chris Cuomo loses it over "Fredo"

Read the transcript. Cuomo felt it was . , and i think he was right to call out the lowlife. So, because he felt it was racist, it was racist? That’s why the word has lost all meaning in this society. When everything is racist, then nothing is. As to his response, with his family present...repulsiv...

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by fr8mech
Mon Aug 12, 2019 4:57 pm
Forum: Non-Aviation
Topic: Smoke detector battery thread
Replies: 7
Views: 876

Re: Smoke detector battery thread

Smoke detectors may or may not chirp a couple of times after the replacement of the battery, depending on manufacturer and/or model. Call it a “power up” test. By the way, how old is the detector? The NFPA, The USFA, and all sorts of other alphabet type organizations that have an interest (including...

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by fr8mech
Mon Aug 12, 2019 4:36 pm
Forum: Technical/Operations
Topic: Hydraulic reservoir pressurization/ cavitation?
Replies: 22
Views: 2516

Re: Hydraulic reservoir pressurization/ cavitation?

Which is of course the same as the pressure of the hydraulic fluid in the reservoir. Which, is of course, controlled by the air pressure in the reservoir. On aircraft where air is used to pressurize the reservoir, we measure and regulate air pressure, not hydraulic pressure, in terms of head pressu...

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by fr8mech
Fri Aug 09, 2019 8:13 pm
Forum: Technical/Operations
Topic: Hydraulic reservoir pressurization/ cavitation?
Replies: 22
Views: 2516

Re: Hydraulic reservoir pressurization/ cavitation?

vikkyvik wrote:

Air pressure? Or hydraulic fluid pressure?


Air pressure exerted on the fluid.

vikkyvik wrote:

Presumably, cavitation would cause hydraulic-fluid-bubbles, rather than air bubbles, correct?


Air bubbles & foaming. Not sure what a hydraulic-fluid-bubble within the hydraulic fluid is.

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by fr8mech
Fri Aug 09, 2019 2:15 am
Forum: Technical/Operations
Topic: Hydraulic reservoir pressurization/ cavitation?
Replies: 22
Views: 2516

Re: Hydraulic reservoir pressurization/ cavitation?

Thanks guys, another follow-up question. I’ve heard the term “hydraulic head pressure” mentioned a lot while trying to get an answer to this question. What does that mean? Thanks again Really, really simple, in hydraulics, head pressure is the pressure exerted on the system by the fluid above the s...

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by fr8mech
Tue Aug 06, 2019 3:06 pm
Forum: Technical/Operations
Topic: Engine run up and taxi for mainteinance people
Replies: 13
Views: 2684

Re: Engine run up and taxi for mainteinance people

You will probably need to specify country, regulating authority and operator if you want an answer that means anything to you. Having been a field instructor (for maintenance) on the B747, I can tell you I went through a class offered by my employer, and followed the guidelines of our GMM & GOM,...

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by fr8mech
Mon Aug 05, 2019 12:34 am
Forum: Technical/Operations
Topic: Small Cockpit Device On All Passenger Planes
Replies: 11
Views: 3137

Re: Small Cockpit Device On All Passenger Planes

It’s a sight target. When the pilots’ eyes are aligned to it, they are in the “proper” position.

When teaching taxi, I used to explain that when aligned to the target, all the sight lines and angles in the AMM and taxi manuals were valid.

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by fr8mech
Sat Aug 03, 2019 7:38 pm
Forum: Technical/Operations
Topic: Airbus Radome
Replies: 8
Views: 1793

Re: Airbus Radome

Erosion boot.

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by fr8mech
Sat Aug 03, 2019 7:37 pm
Forum: Technical/Operations
Topic: High pressure hydraulics vs bleed air
Replies: 15
Views: 2485

Re: High pressure hydraulics vs bleed air

All the aircraft I have worked on ranging from the BAC One-Eleven through to the A350 have a pneumatic system that runs a 45/50 psi. I don't call that very high I think we had this discussion before. From a maintenance point-of-view, chapter 36 air is indeed low pressure. High pressure, to the main...

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by fr8mech
Fri Aug 02, 2019 10:15 pm
Forum: Technical/Operations
Topic: High pressure hydraulics vs bleed air
Replies: 15
Views: 2485

Re: High pressure hydraulics vs bleed air

Simply, the plumbing is designed and rated for 3000 psi...actually a lot higher than that. The pneumatic ducting is rated for much lower pressure...probably in the 200-300 psi range at the engine and lower as the air progresses through the airframe. Locations where high pressure air is used, e.g. ac...

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by fr8mech
Wed Jul 31, 2019 11:44 pm
Forum: Non-Aviation
Topic: Towing a Loaded Trailer With a Bus
Replies: 36
Views: 2921

Re: Towing a Loaded Trailer With a Bus

I was talking more like a horse trailer, U haul trailer, or boat trailer rather than an articulated bus. As long as the tow vehicle and hitch system are rated for the weight of the trailer/load, then it’s not a problem. Acceleration may be slower, and stopping distances increase, but that’s to be e...

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by fr8mech
Wed Jul 31, 2019 12:41 pm
Forum: Non-Aviation
Topic: Towing a Loaded Trailer With a Bus
Replies: 36
Views: 2921

Re: Towing a Loaded Trailer With a Bus

What does that mean? What exactly is it like towing a loaded trailer with a bus of any kind like a full sized bus or a small shuttle type bus. It is exactly like towing anything. You make sure the tow vehicle and hitch are rated for the weight and that the trailer load is properly distributed across...

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by fr8mech
Tue Jul 30, 2019 12:30 am
Forum: Technical/Operations
Topic: Bleed AIr Off the Low Pressure Compressor?
Replies: 17
Views: 3552

Re: Bleed AIr Off the Low Pressure Compressor?

I think you're speaking of the Fan air valve. The Fan air is used while sitting stationary while on the ground. The Fan Air is no longer needed after takeoff thus the valve closes and Ram air takes over. No, the fan air valve opens or closes in response to bleed air temperature. It allows fan air t...

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by fr8mech
Sun Jul 28, 2019 10:21 pm
Forum: Technical/Operations
Topic: Topics for high school chemistry project (IB Chemistry IA) related to aviation?
Replies: 12
Views: 1817

Re: Topics for high school chemistry project (IB Chemistry IA) related to aviation?

Erau82 wrote:
Urine degradation is another big issues with horse transportation.


In human transportation also. I’ve see a whole lot of corrosion in the ass end of air transport aircraft before.

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by fr8mech
Sun Jul 28, 2019 2:53 pm
Forum: Technical/Operations
Topic: Taxied back to the gate and pushed back again?
Replies: 6
Views: 2664

Re: Taxied back to the gate and pushed back again?

Taxied back, or pulled back in? Not sure of ramp procedures in SFO, but it could be possible that the access door for the air cart was left open, so they pulled back in, dealt with it, and pushed again. Around here, it’d be no big deal for the dude to walk out and deal with it, but different airport...

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by fr8mech
Sun Jul 28, 2019 11:34 am
Forum: Non-Aviation
Topic: The death of stuey's iPhone
Replies: 8
Views: 1121

Re: The death of stuey's iPhone

We moved from AT&T to Verizon a little over 10 years ago and ported my wife’s Blackberry over. I don’t recall it being an issue at all. I’m sure we talked to Verizon first and then canceled our AT&T service. I second the “attempt to remove the fluff from the lightning port” gambit. While gro...

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by fr8mech
Thu Jul 25, 2019 9:53 pm
Forum: Non-Aviation
Topic: The correct post office
Replies: 16
Views: 845

Re: The correct post office

...is one that is along the route of where ever I happen to be going if I happen to need a post office.

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by fr8mech
Wed Jul 24, 2019 6:11 am
Forum: Non-Aviation
Topic: POTUS Needs A Civics Lesson
Replies: 12
Views: 1354

Re: POTUS Needs A Civics Lesson

"I've got a pen, and I've got a phone." ~President Barack Obama https://www.npr.org/2014/01/20/263766043/wielding-a-pen-and-a-phone-obama-goes-it-alone https://reason.com/2016/11/14/ive-got-a-pen-and-ive-got-a-phone-obamas/ https://washington.cbslocal.com/2014/01/14/obama-on-executive-acti...

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by fr8mech
Wed Jul 24, 2019 5:19 am
Forum: Non-Aviation
Topic: CONFIRMED: UPS to add Sunday Delivery in 2020
Replies: 21
Views: 1387

Re: CONFIRMED: UPS to add Sunday Delivery in 2020

Will UPS contract out delivery like Amazon does? I saw a guy in his personal hatchback last week delivering Amazon packages. The Amazon packages were in direct sunlight in 95F + heat. I guess I won't be ordering vitamins from Amazon that have to be shipped and delivered by them to my house, instead...

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by fr8mech
Sat Jul 20, 2019 11:45 pm
Forum: Technical/Operations
Topic: Topics for high school chemistry project (IB Chemistry IA) related to aviation?
Replies: 12
Views: 1817

Re: Topics for high school chemistry project (IB Chemistry IA) related to aviation?

I was just familiarizing myself with the Nitrogen Generation System (NGS) on some of our aircraft. What happens is a chemical reaction. I'm sure there's plenty of open-source literature about the process.

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by fr8mech
Sat Jul 20, 2019 11:27 pm
Forum: Technical/Operations
Topic: Topics for high school chemistry project (IB Chemistry IA) related to aviation?
Replies: 12
Views: 1817

Re: Topics for high school chemistry project (IB Chemistry IA) related to aviation?

*Antifreeze - how it works, how to strengthen, etc Pretty much, not a thing in commercial aviation. I guess you can talk about aluminum alloys and their properties. You can expand on how those properties change based on aircraft environment, e.g. bleed air temperature, exposure to various fluids (b...

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by fr8mech
Sat Jul 20, 2019 12:10 am
Forum: Non-Aviation
Topic: Car Stuck in the Mud due to GPS
Replies: 15
Views: 949

Re: Car Stuck in the Mud due to GPS

I think it is unfair to blame the operator 100%.. Ok, maybe 99% or 98%. In the end, it is the driver's responsibility to ensure that the road he is traveling is suitable. Have I screwed up? Yup, but I never blamed the GPS or the software or whatever, I blamed the person driving the car for not payi...

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by fr8mech
Fri Jul 19, 2019 9:57 am
Forum: Technical/Operations
Topic: Usage ratio of MIL-PRF-23827 to MIL-PRF-81322 grease on A320
Replies: 8
Views: 1386

Re: Usage ratio of MIL-PRF-23827 to MIL-PRF-81322 grease on A320

Jouhou wrote:
Do Airbus aircraft actually use US mil spec grease?


Yes, Airbus does use MIL Spec.

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by fr8mech
Thu Jul 18, 2019 11:53 pm
Forum: Non-Aviation
Topic: Car Stuck in the Mud due to GPS
Replies: 15
Views: 949

Re: Car Stuck in the Mud due to GPS

Mapping software does not lead people down muddy paths, people who have little or no awareness of their surroundings do that all by themselves.

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by fr8mech
Thu Jul 18, 2019 11:49 pm
Forum: Technical/Operations
Topic: Recirc Fans/ engine start
Replies: 9
Views: 1881

Re: Recirc Fans/ engine start

A quick look at our schematic manuals shows that there is no fan inhibit during engine start (B744, -8, B757/767). I couldn't find it in the engine start procedures for the flight crew, either.

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by fr8mech
Thu Jul 18, 2019 1:59 am
Forum: Technical/Operations
Topic: Combustor, Burner Cans, etc.
Replies: 3
Views: 1105

Re: Combustor, Burner Cans, etc.

You can take a look here. It has a high level explanation of combustor arrangement.

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by fr8mech
Thu Jul 18, 2019 1:53 am
Forum: Non-Aviation
Topic: "Illegal Wiretapping" - Passenger plane?
Replies: 2
Views: 592

Re: "Illegal Wiretapping" - Passenger plane?

As I understand it, it is illegal to record anyone without consent, unless it happens in a public place (e.g. filming of a police officer or a crowd of protesters). It really depends on where you are. Around here, a wiretap is perfectly legally as long as at least one of the parties being recorded ...

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by fr8mech
Sun Jul 14, 2019 11:01 am
Forum: Non-Aviation
Topic: Disappearances in American National Parks
Replies: 30
Views: 2733

Re: Disappearances in American National Parks

DeltaWings wrote:

So that leaves 16'242 as an unsignificant number? :lol:


By itself, 16,242 is a large number. In context, it is .005% of the population. So, yes, 16,292 tends to lose it’s significance

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by fr8mech
Sat Jul 13, 2019 10:14 am
Forum: Non-Aviation
Topic: Disappearances in American National Parks
Replies: 30
Views: 2733

Re: Disappearances in American National Parks

I have the stats for 2009 (and 2010), where about 720'000 went missing. But it will be in that range for 2018. https://archives.fbi.gov/archives/about-us/cjis/ncic/ncic-missing-person-and-unidentified-person-statistics-for-2010 I assume you read a little further and found that 703,316 of those 719,...

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by fr8mech
Sat Jul 13, 2019 4:50 am
Forum: Non-Aviation
Topic: Running
Replies: 17
Views: 1073

Re: Running

On the other end of the spectrum (as far as impact goes, anyway), there's trail running. I want to drop a few more kg before I attempt it, but I live in a city surrounded by hills with a couple of hundred trails, and I love hiking and running, so it seems a missed opportunity if I never combine the...

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by fr8mech
Sat Jul 13, 2019 4:14 am
Forum: Technical/Operations
Topic: Retread Tires on Commercial Planes
Replies: 22
Views: 2316

Re: Retread Tires on Commercial Planes

On a 747? (any 747) the aft Body gear tires are the most critical as they're the first to touch down and the last to Leave the ground. Actually, they're probably more critical because they scrub more in turns, especially if the BGS is inop. We did find that 8 & 11 were more frequently changed, ...

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by fr8mech
Sat Jul 13, 2019 1:33 am
Forum: Non-Aviation
Topic: Planned storming of Area 51 9/20
Replies: 88
Views: 7806

Re: Planned storming of Area 51 9/20

My guess: if a large number of these folks try to storm the place, the security forces would use sonic devices for crowd control. I suspect the military has access to stuff that has a little more kick than what police departments have. Then, of course, smoke/chemical irritants can be deployed. I'm t...

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by fr8mech
Fri Jul 12, 2019 9:45 am
Forum: Technical/Operations
Topic: Retread Tires on Commercial Planes
Replies: 22
Views: 2316

Re: Retread Tires on Commercial Planes

I recall a thread where MX people confirmed that tires were in any case the No 1 spare part in terms of inventory rotation...a lot of movement with all that rubber-smoke generation on landing... I looked at some data 15 or so years ago, trying to figure out if any individual tire position on the cl...

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by fr8mech
Fri Jul 12, 2019 8:25 am
Forum: Technical/Operations
Topic: RAT Deployment and ETOPS
Replies: 28
Views: 2604

Re: RAT Deployment and ETOPS

I'm confused. BoeingGuy says the 787 RAT only provides electric power. Is there a dedicated emergency hydraulic pump powered by the RAT electrical supply? According to the training manual I have: The RAT system is powered by a two-blade turbine, which drives an electrical generator and a hydraulic ...

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by fr8mech
Thu Jul 11, 2019 7:30 am
Forum: Non-Aviation
Topic: Running
Replies: 17
Views: 1073

Re: Running

3000 - 3500 cal a day at 210lbs? Wow, no offense, but you must have had to shit like a Clydesdale! The thing is, since I was running and training for various 10K's and Half's, the stuff I was taking in was healthy. Salads, lean meats, fruits & veggies, etc. Just a whole lot of it. The more I ex...

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by fr8mech
Thu Jul 11, 2019 7:21 am
Forum: Technical/Operations
Topic: RAT Deployment and ETOPS
Replies: 28
Views: 2604

Re: RAT Deployment and ETOPS

I got my hands on a B787 GenFam Systems Manual. Looking at 29, the RAT is plumbed into the center system. The center system is powered only by electric pumps. So, loss of an engine would not affect operation of those pumps, unless there is some sort of load shed function. But, methinks, hydraulic pu...

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