Search found 3664 matches

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by kalvado
Wed Feb 09, 2022 5:19 pm
Forum: Civil Aviation
Topic: Women Removed from AA Flight over Nut Allergy
Replies: 138
Views: 15449

Re: Women Removed from AA Flight over Nut Allergy

This will be provocative: 14 CFR § 382.5. DOT has openly recognized allergies to be a disability covered by the ACAA. This means that airlines must make accommodations for passengers with allergies so that they can fly as safely on planes as any other passenger. Airlines cannot, however, guarantee ...

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by kalvado
Wed Feb 09, 2022 5:12 pm
Forum: Civil Aviation
Topic: Women Removed from AA Flight over Nut Allergy
Replies: 138
Views: 15449

Re: Women Removed from AA Flight over Nut Allergy

As far as I understand, issue is with people being a bit paranoic - which I can understand given possible consequences. But there is limited actual danger for remote exposure. Someone in a seat next to allergic person is legitimate, even if borderline only. Few rows away shouldn't be an issue https:...

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by kalvado
Wed Feb 09, 2022 4:33 pm
Forum: Technical/Operations
Topic: Tire Pressure on A32X Family
Replies: 9
Views: 2510

Re: Tire Pressure on A32X Family

B777 tire pressures for maximum airplane gross weight in psig (sorted by MTOW): So Boeing also pretty much has the same trend for the family aircraft. Longer the jet, slightly lesser the pressure of the Nose wheel. As a first thought, it may be about lever arm and resulting momentum. Longer arm for...

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by kalvado
Wed Feb 09, 2022 2:20 am
Forum: Technical/Operations
Topic: FAA Draft AC on Flight Path Management
Replies: 13
Views: 2330

Re: FAA Draft AC on Flight Path Management

Something in draft, but working thru the ARC process. Includes this gem, Pilots must have the proficiency to manually fly the aircraft at any time (even for the entire flight), without the aid of automated systems.9 https://www.faa.gov/aircraft/draft_docs/media/afx/AC_120-FPM_Coord_Copy.pdf Bureauc...

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by kalvado
Tue Feb 08, 2022 10:52 pm
Forum: Civil Aviation
Topic: FAA wants to know what actions Airlines are going to do to curb unruly passenger incidents
Replies: 166
Views: 18596

Re: FAA wants to know what actions Airlines are going to do to curb unruly passenger incidents

This is funny on so many levels... Funny - sad, I mean. There are many causes of unruly behavior, including a lack of social skills, lack of accountability for previous poor behavior, alcohol, etc. However, the current rash of bad behavior is largely due to the mask mandates. The question that the ...

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by kalvado
Fri Feb 04, 2022 11:21 pm
Forum: Civil Aviation
Topic: What's next for Mesa - Sea Gliders!
Replies: 10
Views: 1762

Re: What's next for Mesa - Sea Gliders!

viewtopic.php?f=3&t=1460109
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Previous discussion on the subject:
viewtopic.php?f=3&t=1460109

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by kalvado
Mon Jan 31, 2022 7:23 pm
Forum: Technical/Operations
Topic: Avionics Bay Access and Pressurization
Replies: 63
Views: 5517

Re: Avionics Bay Access and Pressurization

If you’re asking about KVA, about 360. There wasn’t IFE on it, some dim lighting and seat belt sign. If it worked a coffee maker and oven up front. Pax got a cold box lunch, so did the crew, but the Loads could awesome with the oven. 360 kVA is a lot; but I suspect that is a total peak power. 787, ...

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by kalvado
Mon Jan 31, 2022 3:51 pm
Forum: Civil Aviation
Topic: Boeing Hints at Next New Jet as It Weighs Tough Engine Decisions
Replies: 115
Views: 19517

Re: Boeing Hints at Next New Jet as It Weighs Tough Engine Decisions

Two possible design challenges with such a design. Where are the gear attached and stowed? Where to place large fuel tanks for +3000nm range? The wings are very thin and dont offer much space for fuel. Edit: If the gear is placed in the engine nacelle, which requires quite a bit larger nacelle than...

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by kalvado
Mon Jan 31, 2022 3:50 pm
Forum: Civil Aviation
Topic: Boeing Hints at Next New Jet as It Weighs Tough Engine Decisions
Replies: 115
Views: 19517

Re: Boeing Hints at Next New Jet as It Weighs Tough Engine Decisions

They appear to continue to be progressing with the Truss Braced Wing Concept. It also opens the door for even larger fans since it is a high wing mounted design https://youtu.be/NtQHjBinQQs This chatter seems to match the NASA timeline https://www.nasa.gov/aeroresearch/nasa-plans-for-subsonic-fligh...

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by kalvado
Mon Jan 31, 2022 2:02 pm
Forum: Civil Aviation
Topic: Boeing Hints at Next New Jet as It Weighs Tough Engine Decisions
Replies: 115
Views: 19517

Re: Boeing Hints at Next New Jet as It Weighs Tough Engine Decisions

They appear to continue to be progressing with the Truss Braced Wing Concept. It also opens the door for even larger fans since it is a high wing mounted design https://youtu.be/NtQHjBinQQs This chatter seems to match the NASA timeline NASA plans to solicit industry in early 2022 for preliminary de...

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by kalvado
Mon Jan 31, 2022 1:10 pm
Forum: Technical/Operations
Topic: Avionics Bay Access and Pressurization
Replies: 63
Views: 5517

Re: Avionics Bay Access and Pressurization

GalaxyFlyer wrote:
The 1970 C-5 needed fewer racks—fewer boxes in the old days

How much power is available for payload on C-5?
I bet passenger cabin requires a bit of power and associated equipment.

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by kalvado
Sun Jan 30, 2022 9:37 pm
Forum: Technical/Operations
Topic: Avionics Bay Access and Pressurization
Replies: 63
Views: 5517

Re: Avionics Bay Access and Pressurization

I have to wonder why large avionics bays haven't gone by the wayside on newer A/C's. No doubt a modern smart phone has more than enough compute power for every system on the aircraft. Not that I'd be advocating for a central controller or anything. I have heard that a lot of the technology is delib...

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by kalvado
Sat Jan 29, 2022 8:07 pm
Forum: Civil Aviation
Topic: Future of US Regional Flying In the Next 5 Years
Replies: 140
Views: 20948

Re: Future of Regional Flying In the Next 5 Years

One of those directions won’t be relaxation of the scope limits. It won’t be a new technology RJ—no business case for it. What can you offer, please? If you want a real flamebait... How about single pilot for E170-195, flying at - or above - 737 CA rate? Then career progression could be 737FO - 737...

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by kalvado
Sat Jan 29, 2022 5:33 pm
Forum: Civil Aviation
Topic: Future of US Regional Flying In the Next 5 Years
Replies: 140
Views: 20948

Re: Future of Regional Flying In the Next 5 Years

Not happening unless another Ch 11 wave hits. Things can come from different directions. People are talking about workforce shortage, and division of first tier mainline vs meager regional is due to availability of cheap workforce. I wouldn't be surprised if things would have to change in multiple ...

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by kalvado
Sat Jan 29, 2022 3:36 pm
Forum: Civil Aviation
Topic: Future of US Regional Flying In the Next 5 Years
Replies: 140
Views: 20948

Re: Future of Regional Flying In the Next 5 Years

Not happening unless another Ch 11 wave hits. Things can come from different directions. People are talking about workforce shortage, and division of first tier mainline vs meager regional is due to availability of cheap workforce. I wouldn't be surprised if things would have to change in multiple ...

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by kalvado
Sat Jan 29, 2022 3:17 pm
Forum: Civil Aviation
Topic: Future of US Regional Flying In the Next 5 Years
Replies: 140
Views: 20948

Re: Future of Regional Flying In the Next 5 Years

The E175 and CR9 are too big for the US market in my opinion, ideally I feel like a jet that fits 6F 70Y would be perfect. I have to ask why, specifically, you think 6F 70Y is better than the 12F 64Y of AA/DL/UA E175s? What I mean is the next generation of Regional Jet needs to be purpose built for...

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by kalvado
Fri Jan 28, 2022 7:21 pm
Forum: Civil Aviation
Topic: Boeing Hints at Next New Jet as It Weighs Tough Engine Decisions
Replies: 115
Views: 19517

Re: Boeing Hints at Next New Jet as It Weighs Tough Engine Decisions

It's behind a paywall for me. Can you post some key, fair use, excerpts? There is really nothing other than they keep thinking about planning to maybe do something someday. I guess key message is that all the NMA talk is wiped off again. There is PD activity going on. I believe there will be a new ...

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by kalvado
Fri Jan 28, 2022 6:46 pm
Forum: Civil Aviation
Topic: Boeing Hints at Next New Jet as It Weighs Tough Engine Decisions
Replies: 115
Views: 19517

Re: Boeing Hints at Next New Jet as It Weighs Tough Engine Decisions

Well the article mentions tubes and turbofans. Tubes won’t be going away any time soon, so either we go back to turbojets (not happening) or unducted fans if those are the criteria for change going forward. Options which would be mentioned - but not implemented - are all-electric, hydrogen fuel cel...

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by kalvado
Fri Jan 28, 2022 5:53 pm
Forum: Civil Aviation
Topic: Boeing Hints at Next New Jet as It Weighs Tough Engine Decisions
Replies: 115
Views: 19517

Re: Boeing Hints at Next New Jet as It Weighs Tough Engine Decisions

planecane wrote:
It's behind a paywall for me. Can you post some key, fair use, excerpts?

There is really nothing other than they keep thinking about planning to maybe do something someday.
I guess key message is that all the NMA talk is wiped off again.

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by kalvado
Thu Jan 27, 2022 7:58 pm
Forum: Civil Aviation
Topic: BA 772 L2 door destroyed at jetway at CPT
Replies: 39
Views: 10700

Re: BA 772 L2 door destroyed at jetway at CPT

I have so many questions: 1. Were passengers on board? If so - this could have been disastrous as cabin crew are positioned near the door and could have been hurt. 2. How do you miss a connected jetbridge? 3. Where were the wing walkers? At least 1 question is addressed in twitter feed: The aircraf...

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by kalvado
Wed Jan 26, 2022 8:30 pm
Forum: Civil Aviation
Topic: Boeing books loss on 787 groundings
Replies: 49
Views: 6105

Re: Boeing books loss on 787 groundings

I may be wrong, so please correct me if so, but in my opinion the FAA are not obligated to explain to taxpayers why any particular aircraft is delayed into service. This regulatory process if between the manufacturer and the regulator, the manufacturer decides what information is released to the pu...

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by kalvado
Wed Jan 26, 2022 7:48 pm
Forum: Technical/Operations
Topic: Avionics Bay Access and Pressurization
Replies: 63
Views: 5517

Re: Avionics Bay Access and Pressurization

Lpbri wrote:
I would think the crew would want access to the E&E in the event of a fire.

To let air into the fire and smoke into the cockpit? Not sure how smart that is....

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by kalvado
Wed Jan 26, 2022 4:18 pm
Forum: Civil Aviation
Topic: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference
Replies: 530
Views: 70920

Re: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference

frmrCapCadet wrote:
Keep everyone happy, keep everybody unhappy. One of those odd constructions, opposites which mean about the same thing.

No, it's a long since lost art of compromise. Keep everyone somewhat unhappy, but make sure nobody is totally pissed off.

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by kalvado
Wed Jan 26, 2022 2:48 pm
Forum: Civil Aviation
Topic: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference
Replies: 530
Views: 70920

Re: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference

Revelation wrote:
hivue wrote:
I'm getting the feeling that the FAA is going through painful contortions to try to keep everybody happy.

Is that a part of their job description?

I thought their job description is to keep everyone somewhat unhappy. That's when things are in balance.

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by kalvado
Wed Jan 26, 2022 1:01 am
Forum: Civil Aviation
Topic: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference
Replies: 530
Views: 70920

Re: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference

Here is the AD for the 747 and 777: https://public-inspection.federalregister.gov/2022-01695.pdf?utm_source=federalregister.gov&utm_medium=email&utm_campaign=pi+subscription+mailing+list Approaches and Landings in the Presence of Radio Altimeter 5G C-Band Interference: Dispatching or releas...

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by kalvado
Tue Jan 25, 2022 4:02 pm
Forum: Civil Aviation
Topic: PAE Commercial Flights Temporarily Suspended due to Fog and 5G
Replies: 9
Views: 2838

Re: PAE closed due to FOG and 5G

Far fetched but could this have AS shifting capacity to PAE sooner than scheduled Interesting question since their 737s are ok'd to operate in 5G areas. Longer term, isn't it just a matter of time before the E175s get the ok? Will the fact that some are Horizon and some are Skywest make a timing di...

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by kalvado
Tue Jan 25, 2022 1:44 am
Forum: Civil Aviation
Topic: UA90 EWR-TLV turns back on Jan 21 due to unruly pax
Replies: 62
Views: 9414

Re: UA90 EWR-TLV turns back on Jan 21 due to unruly pax

As you continue to provide absolutely no proof that the crew made efforts to accommodate or otherwise take control of the situation. My stance is supported by the fact that a professional crew with likely decades of experience between them decided the incident warranted returning to base. Your posi...

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by kalvado
Tue Jan 25, 2022 1:18 am
Forum: Civil Aviation
Topic: UA90 EWR-TLV turns back on Jan 21 due to unruly pax
Replies: 62
Views: 9414

Re: UA90 EWR-TLV turns back on Jan 21 due to unruly pax

I think you are presuming such an offer was not made in the first instance. Crews have hand held credit card collections machines and yes, commonly used in Emergency Exit grabs I have seen on United. It helps protect the people that purchased the upgrades. Media states the were disruptive and (exag...

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by kalvado
Tue Jan 25, 2022 12:33 am
Forum: Civil Aviation
Topic: UA90 EWR-TLV turns back on Jan 21 due to unruly pax
Replies: 62
Views: 9414

Re: UA90 EWR-TLV turns back on Jan 21 due to unruly pax

Great idea everyone, let the inmates run the asylum. After all, if you prove that the crew is willing to let “obey crew commands” slide then why not go up there and have a business class seat for yourself, or hell, why not a jump seat or crew bunk. 77w has some great crew bunks up there, just go po...

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by kalvado
Tue Jan 25, 2022 12:21 am
Forum: Civil Aviation
Topic: UA90 EWR-TLV turns back on Jan 21 due to unruly pax
Replies: 62
Views: 9414

Re: UA90 EWR-TLV turns back on Jan 21 due to unruly pax

The 150 remaining passengers who got screwed over a diversion and ultimately a cancelled flight were in that situation solely due to the actions of the passengers who self-upgraded and the events that ensued. The decision to divert and fly back to EWR is a question of safety over procedure and safe...

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by kalvado
Tue Jan 25, 2022 12:08 am
Forum: Civil Aviation
Topic: UA90 EWR-TLV turns back on Jan 21 due to unruly pax
Replies: 62
Views: 9414

Re: UA90 EWR-TLV turns back on Jan 21 due to unruly pax

Great idea everyone, let the inmates run the asylum. After all, if you prove that the crew is willing to let “obey crew commands” slide then why not go up there and have a business class seat for yourself, or hell, why not a jump seat or crew bunk. 77w has some great crew bunks up there, just go po...

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by kalvado
Tue Jan 25, 2022 12:05 am
Forum: Civil Aviation
Topic: UA90 EWR-TLV turns back on Jan 21 due to unruly pax
Replies: 62
Views: 9414

Re: UA90 EWR-TLV turns back on Jan 21 due to unruly pax

All true. But none of that has anything to do with whether or not criminal charges were filed. So far, this is UA decision to divert. A criminal conviction would be great proof that the person actually did something very wrong and caused that decision. Right now, once those pax refuse to pay, UA wo...

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by kalvado
Mon Jan 24, 2022 11:51 pm
Forum: Civil Aviation
Topic: UA90 EWR-TLV turns back on Jan 21 due to unruly pax
Replies: 62
Views: 9414

Re: UA90 EWR-TLV turns back on Jan 21 due to unruly pax

Why would it be difficult to secure reimbursement without criminal charges? UA's CoC provides for reimbursement: Unless they pay voluntarily, UA will have to sue them as a first step. That has some PR risk involved. After that you then have to collect the judgement, which depending on the passenger...

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by kalvado
Mon Jan 24, 2022 10:27 pm
Forum: Civil Aviation
Topic: UA90 EWR-TLV turns back on Jan 21 due to unruly pax
Replies: 62
Views: 9414

Re: UA90 EWR-TLV turns back on Jan 21 due to unruly pax

The time has come for the airlines to apply harsh penalties for this type of behavior, particularly when they trigger a diversion and it is clear that the passenger or passengers are the sole culprits. The added costs shouldered by the airline for the diversion (fuel, over time, re-accommodation fo...

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by kalvado
Mon Jan 24, 2022 7:40 pm
Forum: Civil Aviation
Topic: UA90 EWR-TLV turns back on Jan 21 due to unruly pax
Replies: 62
Views: 9414

Re: UA90 EWR-TLV turns back on Jan 21 due to unruly pax

When you are talking customer service vs. safety on board a plane, safety will win out every time. If the crew felt it was necessary to have these passengers removed ASAP then sorry for everyone else who gets hosed but a diversion is what is going to happen. The fact that this flight turned around ...

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by kalvado
Mon Jan 24, 2022 7:29 pm
Forum: Civil Aviation
Topic: UA90 EWR-TLV turns back on Jan 21 due to unruly pax
Replies: 62
Views: 9414

Re: UA90 EWR-TLV turns back on Jan 21 due to unruly pax

The time has come for the airlines to apply harsh penalties for this type of behavior, particularly when they trigger a diversion and it is clear that the passenger or passengers are the sole culprits. The added costs shouldered by the airline for the diversion (fuel, over time, re-accommodation fo...

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by kalvado
Mon Jan 24, 2022 7:07 pm
Forum: Civil Aviation
Topic: UA90 EWR-TLV turns back on Jan 21 due to unruly pax
Replies: 62
Views: 9414

Re: UA90 EWR-TLV turns back on Jan 21 due to unruly pax

The time has come for the airlines to apply harsh penalties for this type of behavior, particularly when they trigger a diversion and it is clear that the passenger or passengers are the sole culprits. The added costs shouldered by the airline for the diversion (fuel, over time, re-accommodation fo...

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by kalvado
Mon Jan 24, 2022 5:42 pm
Forum: Civil Aviation
Topic: UA90 EWR-TLV turns back on Jan 21 due to unruly pax
Replies: 62
Views: 9414

Re: UA90 EWR-TLV turns back on Jan 21 due to unruly pax

The time has come for the airlines to apply harsh penalties for this type of behavior, particularly when they trigger a diversion and it is clear that the passenger or passengers are the sole culprits. The added costs shouldered by the airline for the diversion (fuel, over time, re-accommodation fo...

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by kalvado
Mon Jan 24, 2022 2:00 pm
Forum: Civil Aviation
Topic: Small GA aircraft made in 1947 onwards how are they still flying?
Replies: 29
Views: 5048

Re: Small GA aircraft made in 1947 onwards how are they still flying?

Copy all what you said with electric cars. Apart that we did not figure out how to produce all that electricity, end point distribution will be an issue. Just think to all this blocks in old cities, with hundreds of aparments without their own garage or park place. BTW, why aircraft engines need 10...

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by kalvado
Sun Jan 23, 2022 10:47 pm
Forum: Civil Aviation
Topic: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference
Replies: 530
Views: 70920

Re: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference

As already posted upthread, frequency used by Japanese 5G signal are even closer to the altimeter band in question than those in the US yet none of the airlines have problem with their domestic operation or carrier from nearby countries or US carriers flying into Japan I replied to one of those pos...

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by kalvado
Sun Jan 23, 2022 10:17 pm
Forum: Civil Aviation
Topic: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference
Replies: 530
Views: 70920

Re: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference

I wonder (off topic but reading up on it last night) but how does 5G also affect the EAS system frequencies and deployment, if anything? https://en.wikipedia.org/wiki/Specific_Area_Message_Encoding Also rolled out in 2021 were the first examples of an Earthquake Warning System on the West Coast: ht...

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by kalvado
Sun Jan 23, 2022 9:36 pm
Forum: Civil Aviation
Topic: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference
Replies: 530
Views: 70920

Re: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference

I think it should be pointed out that it's been a political agenda to downsize the regulatory authorities in general and then to often staff the executive positions with people with a non-technical background and an anti-regulatory stance. You get the government you elect. Small government and lean...

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by kalvado
Sun Jan 23, 2022 4:04 pm
Forum: Civil Aviation
Topic: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference
Replies: 530
Views: 70920

Re: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference

Works for domestic carriers, but I do not believe that foreign airlines will be comfortable with such assurances from the FAA, liability only goes so far internationally. So if they are unable to use certain a/c in their fleet or do not have options they may be difficult, not sure there is much the...

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by kalvado
Sun Jan 23, 2022 12:03 pm
Forum: Civil Aviation
Topic: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference
Replies: 530
Views: 70920

Re: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference

The solution is simple. C band band pass filters for radar applications are already on the market as a standard product. Here is an example from a quick Google search: http://microwavefilter.com.s3-website-us-east-1.amazonaws.com/c-band-lp3.html Fix the stupid 1970’s technology receivers to not pic...

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by kalvado
Sat Jan 22, 2022 10:35 pm
Forum: Civil Aviation
Topic: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference
Replies: 530
Views: 70920

Re: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference

RADALT played zero in the accident. Crew was pressured and failed to resist thd pressure and flew below the established minimums. I’m trying what limitation in the RADALT was causal? Radalt is obviously not the root cause, no questions. But just imagine they had a precise way of flying 200 feet ove...

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by kalvado
Sat Jan 22, 2022 10:14 pm
Forum: Civil Aviation
Topic: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference
Replies: 530
Views: 70920

Re: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference

Not a link, but should be easy to find - Polish presidential aircraft crash. Pilot was trying to land in dense fog, descended by radalt - and ended up flying below runway level and into rising terrain. The crew of that flight attempted to descend below the published minimums and ignored the warning...

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by kalvado
Sat Jan 22, 2022 9:31 pm
Forum: Civil Aviation
Topic: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference
Replies: 530
Views: 70920

Re: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference

Radio altimeters are simple yet precise devices that work without external infrastructure or databases. They're relatively immune to environmental influences and don't need recalibration in-flight. Literally the only drawback is that they're sensitive to RF interference, which wasn't an issue until...

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by kalvado
Sat Jan 22, 2022 9:09 pm
Forum: Civil Aviation
Topic: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference
Replies: 530
Views: 70920

Re: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference

Radio altimeters are simple yet precise devices that work without external infrastructure or databases. They're relatively immune to environmental influences and don't need recalibration in-flight. Literally the only drawback is that they're sensitive to RF interference, which wasn't an issue until...

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by kalvado
Sat Jan 22, 2022 3:28 pm
Forum: Civil Aviation
Topic: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference
Replies: 530
Views: 70920

Re: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference

One of ideas which I may want to see implemented somewhere sometime is a local "gps". Satellite based gps is good for global ops, e.g. for military - who happen to be in control. Same principle can be used for a local system, with fixed transmitters. Indoor shopping centers or sports venu...

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