Search found 43 matches

by N47
Mon Apr 15, 2019 4:07 am
Forum: Civil Aviation
Topic: What Would Be The Most Useful Additional Runway At JFK/LGA/EWR?
Replies: 30
Views: 4946

Re: What Would Be The Most Useful Additional Runway At JFK/LGA/EWR?

The problem with building another 4/22 runway at EWR is there's no way to get arrivals onto it or departures off it without compromising traffic flow to an existing runway due to traffic conflicts with LGA. This is because all the arrivals to LGA from the south fly over the Hudson when LGA is landi...

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by N47
Sun Mar 31, 2019 2:34 pm
Forum: Civil Aviation
Topic: Weird Flight path
Replies: 14
Views: 2465

Re: Weird Flight path

Perhaps they were doing high resolution optical scans of the terrain around the airport for surveying reasons. The spaceshuttle did this around the world. Thats where the google earth terrain data mostly comes from. NOAA does similar scans with twin otters over the oceans. Ive seen them a couple tim...

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by N47
Mon Mar 18, 2019 3:51 am
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5474
Views: 716435

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobi

Partly delegating inspections to a private entity and this happened. Imagine what would happen if they fully privatized the FAA.

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by N47
Thu Mar 14, 2019 12:10 pm
Forum: Civil Aviation
Topic: B737MAX Grounded Worldwide Q1 2019
Replies: 6472
Views: 713815

Re: B737MAX Grounded Worldwide

Right now, the FAA only has an acting director, Michael Herta for the past 2 years. I don’t know anything about him. He may be very good in that job or he may not be. Michael Huerta was the administrator of the FAA from 1/2011 to 1/2018. It is Dan Elwell who is the current acting administrator. In ...

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by N47
Wed Mar 13, 2019 1:17 pm
Forum: Civil Aviation
Topic: LH orders 20 B789 and 20 additional A350; Will sell 6 A380s back to Airbus
Replies: 351
Views: 54203

Re: LH orders 20 B789 and 20 additional A350; Will sell 6 A380s back to Airbus

Great news! I would imagine at least some of the 787 would replace the 767s in the OS fleet. By 2025 the 767 would be 30 years old.

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by N47
Sun Mar 10, 2019 1:22 am
Forum: Civil Aviation
Topic: TK001 hits turbulence, lands at JFK with 32 injured pax
Replies: 20
Views: 6589

Re: TK001 hits turbulence, lands at JFK with 32 injured pax

Most local news here in NY picked it up. What eventful day for NY airspace.

Heartbraking to hear about the baby. Having traveled with a 3 month old i can only imagine what the parents are going through.

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by N47
Fri Mar 08, 2019 11:51 am
Forum: Civil Aviation
Topic: Surviving L1011 Numbers?
Replies: 74
Views: 9570

Re: Surviving L1011 Numbers?

There is one at the FAA Technical Center in ACY. It's used for fire testing (lithium batteries, chemical fires, and other fire related tests). It still 'has' the delta livery. Its serving a rather noble purpose i would think. Even in its afterlife it is helping to keep us safe. Google map Link: http...

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by N47
Fri Feb 15, 2019 8:27 pm
Forum: Technical/Operations
Topic: ILS Categories US Major Airports
Replies: 23
Views: 4056

Re: ILS Categories US Major Airports

I'm surprised they had you that close to the MD. That's a good point, but we were initially greater than 5 miles behind the FDX MD-11. However, I suspect they slowed on the runway and rolled to the end or nearly so and that's why or how it fell apart. Being further down the runway would mean they w...

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by N47
Fri Feb 15, 2019 12:04 pm
Forum: Technical/Operations
Topic: ILS Categories US Major Airports
Replies: 23
Views: 4056

Re: ILS Categories US Major Airports

Fun fact about CAT II/III ILS's: due to the lower minimums and the safety involved CAT II/III systems have more stringent flight inspection tolerances meaning the CDI has to be centered about the centerline (or glidepath for GS) tighter than CAT I systems. When the A380 came onto the scene, because ...

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by N47
Mon Feb 04, 2019 8:26 pm
Forum: Civil Aviation
Topic: Can anyone identify the aircraft type shown in this photo?
Replies: 57
Views: 11560

Re: Can anyone identify the aircraft type shown in this photo?

Or you could be familiar with NY ATC procedures where you are cleared to the LGA VOR, maintain 3000, fly outbound on the 270 degree radial and follow the Hudson River southbound where ATC will eventually issue a left turn back towards the airport when a gap in the traffic permits. This has been a c...

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by N47
Sun Jan 13, 2019 7:58 pm
Forum: Technical/Operations
Topic: How interoperable are various SBAS and GBAS?
Replies: 17
Views: 2028

Re: How interoperable are various SBAS and GBAS?

IIRC, ORD has 12 different ILSs. That is a huge investment, that requires a lot of maintenance. The "implement GLS" breakeven point for airports with multiple ILSs must be much lower than for an airport with a single ILS. Yes operating and maintaining 12 ILS does become costly, however, b...

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by N47
Sun Jan 13, 2019 7:39 pm
Forum: Technical/Operations
Topic: How interoperable are various SBAS and GBAS?
Replies: 17
Views: 2028

Re: How interoperable are various SBAS and GBAS?

Returning to the focus of the topic title... does the Rockwell-Collins or Honeywell gear interoperate with GLS and SBAS worldwide? Does it need a software update, like Nav DBs, that contains the destination airports? Example: SBAS/GBAS equipped, US operator, a/c on TATL or TPAC route approaches FRA...

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by N47
Sun Jan 13, 2019 7:32 pm
Forum: Technical/Operations
Topic: How interoperable are various SBAS and GBAS?
Replies: 17
Views: 2028

Re: How interoperable are various SBAS and GBAS?

The key difference with SBAS and GBAS is that the raw gps corrections for SBAS are transmitted through the gps antenna (uhf L-band). WAAS has surveyed reference stations scattered through the US that measure raw gps data and send corrections via gps antenna also. WAAS equiped aircraft can do LPV app...

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by N47
Wed Jan 02, 2019 6:43 pm
Forum: Technical/Operations
Topic: Cessna 172 Wings
Replies: 33
Views: 6748

Re: Cessna 172 Wings

Hey everyone, Sorry about the late reply! I really appreciate all your comments in regard to my question! I’ve actually asked my instructor about it. The reason why the right wing is lower than the left is because the manufacturer designed it to counteract with the torque effect that the propeller ...

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by N47
Wed Nov 28, 2018 1:54 pm
Forum: Civil Aviation
Topic: Lion Air 737MAX8 Crashed Jakarta to Pangkal Pinang
Replies: 3188
Views: 594239

Re: Lion Air 737MAX8 Crashed Jakarta to Pangkal Pinang

Yet, the crew prior to JT610 did just that; flew the plane manually by shutting off the system, per checklist. Hmm..... Also the previous flight had different synonymous to the last flight. The prior flight had IAS disagree so they did they performed the unreliable airspeed checklist first. Could i...

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by N47
Tue Nov 27, 2018 11:58 am
Forum: Technical/Operations
Topic: Why do some airports not have SIDS/STARS?
Replies: 17
Views: 2166

Re: Why do some airports not have SIDS/STARS?

I agree. This was great to see. It looks like Phase 2 is taking out most of the Class Bravo main airport VORs (ATL, CLT, DEN, LGA). That's right, so this will be primarily for GA use, and as i said before this is resiliency to GPS since that is the primary navigation means. Should GPS go out for co...

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by N47
Tue Nov 27, 2018 11:49 am
Forum: Civil Aviation
Topic: Lion Air 737MAX8 Crashed Jakarta to Pangkal Pinang
Replies: 3188
Views: 594239

Re: Lion Air 737MAX8 Crashed Jakarta to Pangkal Pinang

A lot of human factors at play here. Everything from the design and implementation of the MCAS to the pilots not trimming in the last few seconds. As for the 'runaway trim', it seems that the crew of the previous flight kept the plane in the air by applying the 'runaway trim' procedure (presumably)....

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by N47
Sat Nov 24, 2018 2:14 pm
Forum: Technical/Operations
Topic: Why do some airports not have SIDS/STARS?
Replies: 17
Views: 2166

Re: Why do some airports not have SIDS/STARS?

Oh yea its incredible all the work that goes behind the scenes to make it happen. Currently the FAA is implementing VOR MON (VOR Minimum Operational Network) which is basically removing VORs from the NAS being that GPS is primarily used for nav. About 330 or so VORs out of 960+ are slated for decom...

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by N47
Fri Nov 23, 2018 8:35 pm
Forum: Technical/Operations
Topic: Why do some airports not have SIDS/STARS?
Replies: 17
Views: 2166

Re: Why do some airports not have SIDS/STARS?

Do you see the TEB airport north of EWR? That’s why. TEB arrivals, on day the airports are favoring the north runways, fly under the EWR departures, hence the “at or above 2500” restriction”. The TEB traffic has a mandatory altitude of 1500’ there. GF I thought it had it thought to do with that too...

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by N47
Fri Nov 23, 2018 7:53 pm
Forum: Technical/Operations
Topic: Why do some airports not have SIDS/STARS?
Replies: 17
Views: 2166

Re: Why do some airports not have SIDS/STARS?

Here is what I was referring to: MINNEAPOLIS EIGHT DEPARTURE: http://aeronav.faa.gov/d-tpp/1812/00264MINNEAPOLIS.PDF Radar vector SIDs are in place to either: 1. Implement a climb gradient or crossing restriction as is the case in MSP and ORD (amongst others) 2. Assign initial turn heading(s) off o...

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by N47
Fri Nov 23, 2018 6:37 pm
Forum: Technical/Operations
Topic: Why do some airports not have SIDS/STARS?
Replies: 17
Views: 2166

Re: Why do some airports not have SIDS/STARS?

Here is what I was referring to:

MINNEAPOLIS EIGHT DEPARTURE:
http://aeronav.faa.gov/d-tpp/1812/00264MINNEAPOLIS.PDF

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by N47
Fri Nov 23, 2018 6:27 pm
Forum: Technical/Operations
Topic: Why do some airports not have SIDS/STARS?
Replies: 17
Views: 2166

Re: Why do some airports not have SIDS/STARS?

There is an incredible number of hours put in by many different departments within the FAA to coordinate the design, flight inspect, train controllers, chart and implement. The costs are very high when you include coordination with Tower, TRACON, Center's, NATCA, ALPA, SWAPA, APA, Military, NBAA, F...

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by N47
Fri Nov 23, 2018 4:58 pm
Forum: Technical/Operations
Topic: MH370 Hacked?
Replies: 12
Views: 1883

Re: MH370 Hacked?

I am usually skeptical when i hear stuff like this, but then i read something like this, and question my skepticism:

https://www.wired.com/2015/05/feds-say-banned-researcher-commandeered-plane/

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by N47
Fri Nov 23, 2018 4:42 pm
Forum: Civil Aviation
Topic: Lion Air 737MAX8 Crashed Jakarta to Pangkal Pinang
Replies: 3188
Views: 594239

Re: Lion Air 737MAX8 Crashed Jakarta to Pangkal Pinang

Thinking again about this as an electronic engineer. It's plausible that a faulty electronic component in the analog front end of the AoA sensor could introduce a constant offset to the signal. In don't know for this specific ADR, but I have see failure like this before on others industrial systems...

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by N47
Wed Nov 21, 2018 1:09 pm
Forum: Civil Aviation
Topic: Lion Air 737MAX8 Crashed Jakarta to Pangkal Pinang
Replies: 3188
Views: 594239

Re: Lion Air 737MAX8 Crashed Jakarta to Pangkal Pinang

Boeing has a MAX sim at both the MIA and LGW training facilities. well, there have been other voices telling that this are NG sims, not MAX but maybe they are wrong did (or do) those sims cover the MCAS interventions? Don't listen to voices:) They are built from scratch 737-8MAX sims. Here is one: ...

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by N47
Tue Nov 06, 2018 11:58 am
Forum: Technical/Operations
Topic: Active Side Stick - Initial thoughts?
Replies: 121
Views: 9688

Re: Active Side Stick - Initial thoughts?

Unreliable airspeed is a very difficult one for computer logic to figure out. That's one reason it is such a tricky situation. Three separate data sources. Which one is correct? How can we create logic which says one source is correct and the other two not, or two correct and one not? Here is an id...

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by N47
Wed Oct 24, 2018 12:13 pm
Forum: Technical/Operations
Topic: Opposite Direction Runway Operations
Replies: 35
Views: 5316

Re: Opposite Direction Runway Operations

I believe LAX departures are generally always westbound but — unlike arrivals up to 23:59 — late-night arrivals (after 23:59 local time) can be eastbound — I arrived LAX at around 01:30 local and we landed on one of the 7s IIRC. Opposite direction departures/arrivals are common late at night in LAX...

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by N47
Mon Sep 17, 2018 9:07 pm
Forum: Technical/Operations
Topic: Still can't a find good understanding of how a localizer antennta works...
Replies: 2
Views: 1157

Re: Still can't a find good understanding of how a localizer antennta works...

https://www.youtube.com/watch?v=tZ2gG1v9Xg8. Its a bit more technical but it really describes the system in great detail. You can also look at the ILS siting criteria published by the FAA under the theory of operations section.
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Not sure if you came across this one yet: https://www.youtube.com/watch?v=tZ2gG1v9Xg8. Its a bit more technical but it really describes the system in great detail. You can also look at the ILS siting criteria published by the FAA under the theory of operations section.

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by N47
Mon Sep 17, 2018 9:03 pm
Forum: Technical/Operations
Topic: Localizer when no room for antenna?
Replies: 7
Views: 1437

Re: Localizer when no room for antenna?

Yeah, the Localizer looks like the little guy by taxiway S. It's not as wide as what you'd normally see (which I think makes it a little less precise, if I'm remembering my antenna aperture theory). Because it's not on the runway center-line, it's cranked a little bit to get the signal to extend ov...

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by N47
Mon Sep 17, 2018 9:01 pm
Forum: Technical/Operations
Topic: Localizer when no room for antenna?
Replies: 7
Views: 1437

Re: Localizer when no room for antenna?

Yeah, the Localizer looks like the little guy by taxiway S. It's not as wide as what you'd normally see (which I think makes it a little less precise, if I'm remembering my antenna aperture theory). Because it's not on the runway center-line, it's cranked a little bit to get the signal to extend ov...

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by N47
Fri Jun 08, 2018 1:37 pm
Forum: Technical/Operations
Topic: Question about RNAV Approaches and who uses them.
Replies: 26
Views: 2240

Re: Question about RNAV Approaches and who uses them.

The talk of removing ILS systems went on 40 years ago and its still going on now. I am a big proponent of RNAV procedures and their benefits are immense, overall GPS is the best thing that happened to navigation since flying started, however, GPS is not available 100% of the time and is not availab...

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by N47
Thu Jun 07, 2018 7:46 pm
Forum: Technical/Operations
Topic: Question about RNAV Approaches and who uses them.
Replies: 26
Views: 2240

Re: Question about RNAV Approaches and who uses them.

The talk of removing ILS systems went on 40 years ago and its still going on now. I am a big proponent of RNAV procedures and their benefits are immense, overall GPS is the best thing that happened to navigation since flying started, however, GPS is not available 100% of the time and is not availabl...

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by N47
Thu Jun 07, 2018 3:51 pm
Forum: Technical/Operations
Topic: Question about RNAV Approaches and who uses them.
Replies: 26
Views: 2240

Re: Question about RNAV Approaches and who uses them.

Here are the sites that explain the difference between RNAV (RNP) and RNAV (GPS) here in the US RNAV (RNP) https://www.faa.gov/about/office_org/headquarters_offices/ato/service_units/techops/navservices/gnss/nas/procedures/rnav_rnp/ RNAV (GPS) https://www.faa.gov/about/office_org/headquarters_office...

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by N47
Thu Jun 07, 2018 3:45 pm
Forum: Technical/Operations
Topic: Question about RNAV Approaches and who uses them.
Replies: 26
Views: 2240

Re: Question about RNAV Approaches and who uses them.

After some digging around it I may have misstated some information. Not all RNAV approaches are WAAS, as some can be solely GPS such as this one (http://155.178.201.160/d-tpp/1806/00285RRY29.PDF) where the minima are determined by how accurate you can determine your position measure by the RNP. Ther...

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by N47
Thu Jun 07, 2018 3:24 pm
Forum: Technical/Operations
Topic: Question about RNAV Approaches and who uses them.
Replies: 26
Views: 2240

Re: Question about RNAV Approaches and who uses them.

Realistically ILS will not go away within the next 40-50 years. The Ground Based Augmentation System or GBAS (GLS approaches) is a GPS based system that was supposed to render ILS useless, however that came with it own issues like multipath interference of the ground reference antennas. While the sy...

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by N47
Wed Nov 01, 2017 1:03 pm
Forum: Civil Aviation
Topic: Turkish Aviation November 2017
Replies: 88
Views: 10135

Re: Turkish Aviation November 2017

It would be interesting to see TK operate a seasonal non-stop service from NYC to BKPR during the summer. I believe that they would definitely be able to fill up an A330 on a 3x a week flight. Is this official? Weren't there plans to offer transatlantic flights from Macedonia? No this is not a offi...

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by N47
Tue Oct 31, 2017 7:03 pm
Forum: Civil Aviation
Topic: Turkish Aviation November 2017
Replies: 88
Views: 10135

Re: Turkish Aviation November 2017

It would be interesting to see TK operate a seasonal non-stop service from NYC to BKPR during the summer. I believe that they would definitely be able to fill up an A330 on a 3x a week flight.

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by N47
Mon Oct 23, 2017 6:12 pm
Forum: Civil Aviation
Topic: Visual of largest airlines by state in the USA
Replies: 89
Views: 16796

Re: Visual of largest airlines by state in the USA

a USAF logo would be appropriate for DE

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by N47
Wed Oct 04, 2017 3:34 pm
Forum: Technical/Operations
Topic: Dual ILS or Microwave on same runway
Replies: 10
Views: 981

Re: Dual ILS or Microwave on same runway

skyhawkmatthew wrote:
FRA has two ILS systems on discrete frequencies on its north runway (07L/25R), one at 3.0 and the other at 3.2°.


Is the 3.2º approach for noise abatement? At 4 nmi and 10 nmi miles out the altitude differences between 3 and 3.2 are 85 ft and 212 ft respectively.

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by N47
Wed Oct 04, 2017 12:57 pm
Forum: Technical/Operations
Topic: Dual ILS or Microwave on same runway
Replies: 10
Views: 981

Re: Dual ILS or Microwave on same runway

London City uses the 5.5 degree mostly to adhere to TERPS (https://www.faa.gov/regulations_policies/orders_notices/index.cfm/go/document.information/documentID/1029266 -although this is for US it should be similar for UK since its mostly draw from ICAO annex 10). If Canary Warf wasn't there it would...

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by N47
Wed Oct 04, 2017 12:06 pm
Forum: Technical/Operations
Topic: Dual ILS or Microwave on same runway
Replies: 10
Views: 981

Re: Dual ILS or Microwave on same runway

When you refer to Microwave i assume you mean the Microwave Landing System (MLS). This is system is not deployed in the US along with TLS and other systems that were researched (apart from GLS which is privately owned and maintained). The ILS frequency that the pilot tunes is the VHF freq used by th...

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by N47
Thu Sep 28, 2017 4:38 pm
Forum: Civil Aviation
Topic: U.S. Dept of Commerce backs Boeing in dispute with Bombardier
Replies: 1424
Views: 102066

Re: Boeing targets Bombardier for “price dumping” CSeries

Out of curiosity, if Boeing had not made the complain would the DOC have accused BBD of the price dumping?

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by N47
Tue Sep 26, 2017 7:48 pm
Forum: Civil Aviation
Topic: Rumour: TK to start EIN in SU18
Replies: 17
Views: 3302

Re: Rumour: TK to start EIN in SU18

The difference between those airports and Eindhoven is that Eindhoven is a military airport. The military is responsible for the airport facilities such as ILS, the civilian airport management has got nothing to say about that. Their authorities end at the end of the civilian platform. It appears t...

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