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Search: Posts Made By: snowfalcon2
Showing results 1 to 35 of 244
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Forum: Rumours & News
19th Jan 2022, 08:12
Replies: 182
Views: 53,071
Posted By snowfalcon2

A question to the radio engineers among you: If...

A question to the radio engineers among you: If you would need to design a radio altimeter today taking account of the increasing scarcity of radio frequency spectrum - what would be the minimum...
Forum: Rumours & News
17th Jan 2022, 16:29
Replies: 182
Views: 53,071
Posted By snowfalcon2

Progress:[h3] See updates on...

Progress:[h3]





See updates on https://www.faa.gov/5g
Forum: Rumours & News
21st Apr 2018, 17:46
Replies: 466
Views: 528,238
Posted By snowfalcon2

Anybody seen pictures yet of the remains of the...

Anybody seen pictures yet of the remains of the failed fan blade?
Forum: Rumours & News
27th Dec 2016, 20:21
Replies: 1,096
Views: 1,237,028
Posted By snowfalcon2

I'm confused. In the FPL copy we've seen in the...

I'm confused. In the FPL copy we've seen in the media such as here (http://www.pprune.org/rumours-news/587574-jet-goes-down-its-way-medellin-colombia-30.html#post9598286) the cruising level is...
Forum: Rumours & News
19th Mar 2016, 07:05
Replies: 1,540
Views: 1,785,078
Posted By snowfalcon2

If there was a tailstrike, as some reports say,...

If there was a tailstrike, as some reports say, the aircraft may have lost pitch control, not good if they then went around. The tailplane may have got damaged if the airplane was not on the runway....
Forum: Rumours & News
10th Mar 2016, 05:06
Replies: 335
Views: 366,666
Posted By snowfalcon2

During normal conditions the DFDR is provided...

During normal conditions the DFDR is provided with attitude information from IRU 1 via the DCU 1. (from the interim report). IRU 1 also feeds PFD 1.

I wonder which IRU feeds the standby attitude...
Forum: Rumours & News
9th Mar 2016, 14:00
Replies: 335
Views: 366,666
Posted By snowfalcon2

I watched the webcast from the presentation of...

I watched the webcast from the presentation of the report. HAVKOM pointed out that four FDR channels (pitch, roll, ground speed and mag heading) were incompatible with other data after the event...
Forum: Rumours & News
23rd Dec 2015, 06:59
Replies: 1,178
Views: 811,830
Posted By snowfalcon2

Icarus,

It appears from media reports that this drone was fully licensed and operating accordingly. Still this near miss happened. This puts the incident into another, to me more severe, category than thrill...
Forum: Rumours & News
9th Sep 2015, 11:25
Replies: 746
Views: 793,357
Posted By snowfalcon2

Some factbits

Flightradar24 has released their raw data, here (http://aviation-safety.net/database/record.php?id=20150908-0).

The data samples suggest that take-off power was applied at around 23:12:43 UTC as...
Forum: Rumours & News
9th Sep 2015, 06:45
Replies: 746
Views: 793,357
Posted By snowfalcon2

Flightradar24 track indicates that BA2276 stopped...

Flightradar24 track indicates that BA2276 stopped approx 600 metres / 1800 ft from the start of the take-off run. Wonder what that suggests in terms of when the engine failure happened, and what...
Forum: Rumours & News
6th Feb 2015, 10:33
Replies: 748
Views: 715,072
Posted By snowfalcon2

Any clues so far as to why the RH engine failed?...

Any clues so far as to why the RH engine failed? That still seems to be the trigger event starting the chain leading to this accident?
Forum: Rumours & News
5th Feb 2015, 08:44
Replies: 748
Views: 715,072
Posted By snowfalcon2

The Daily Telegraph says the captain had...

The Daily Telegraph says the captain had complained about the left engine...

"The latest so far is the claims that the captain, Liao Jiangzhong, complained of “engine abnormalities” and requested...
Forum: Rumours & News
5th Feb 2015, 06:27
Replies: 748
Views: 715,072
Posted By snowfalcon2

Another explanation is that when the elevator is...

Another explanation is that when the elevator is in full-up position, the mass balance horns protrude from the shape quite prominently. The starboard side seems to look similar.

In that...
Forum: Rumours & News
4th Feb 2015, 09:59
Replies: 748
Views: 715,072
Posted By snowfalcon2

"The Civil Aeronautics Administration said the...

"The Civil Aeronautics Administration said the aircraft involved in Wednesday’s disaster had just completed a safety review on January 26. The pilot had 4,914 hours on his record and his co-pilot...
Forum: Rumours & News
25th Jan 2015, 09:34
Replies: 3,923
Views: 4,491,237
Posted By snowfalcon2

Gretchenfrage, Australopithecus Just...

Gretchenfrage, Australopithecus



Just a question from a VFR pilot: It would seem that a safer reaction to overspeed would be to apply speedbrakes/reduce thrust, instead of raising the...
Forum: Rumours & News
23rd Jan 2015, 07:12
Replies: 3,923
Views: 4,491,237
Posted By snowfalcon2

Volume The Nyquist theorem says that with a...

Volume
The Nyquist theorem says that with a sampling rate of F Hz you can faithfully reproduce signals with a frequency up to F/2 Hz. So for example a CD is sampled at 44 kHz and it reproduces...
Forum: Rumours & News
21st Jan 2015, 10:15
Replies: 3,923
Views: 4,491,237
Posted By snowfalcon2

Zorin and HarryMann

Agree, very interesting. I did an energy management exercise and plugged in some numbers. They suggest that to bleed off the excess kinetic energy caused by a 50-knot airspeed increase due to the...
Forum: Rumours & News
14th Jan 2015, 17:47
Replies: 3,923
Views: 4,491,237
Posted By snowfalcon2

I tend to agree. Before the tail was recovered,...

I tend to agree. Before the tail was recovered, there was an official statement that the rescuers first priority was finding the casualties, the second was the black boxes.

The main interest in...
Forum: Rumours & News
10th Jan 2015, 13:56
Replies: 3,923
Views: 4,491,237
Posted By snowfalcon2

Video of recovered tail

Here is a video of the recovered tail section, presumably taken from the same helicopter as the photo in BJ-ENG's post. Good view at the 20-30 secs position.
...
Forum: Biz Jets, Ag Flying, GA etc.
20th Apr 2014, 19:18
Replies: 21
Views: 6,170
Posted By snowfalcon2

Unfortunately 8 fatalities confirmed by the...

Unfortunately 8 fatalities confirmed by the police. 3 survivors.
Reports are that part of the left wing separated at approx 4 kilometres altitude.
Forum: Rumours & News
12th Apr 2014, 14:06
Replies: 11,831
Views: 24,371,947
Posted By snowfalcon2

Alloyboobtube

Disagree. With new tech we can help prevent the next airplane go missing and save its occupants. If we just shrug, we'll eventually get more of the same type of accident as this.



However, by...
Forum: Rumours & News
27th Mar 2014, 16:08
Replies: 11,831
Views: 24,371,947
Posted By snowfalcon2

glenbrook,

Not quite true. The AF447 accident happened on 1 June 2009 and a preliminary report was issued on 2 July 2009.

ICAO Annex 13 prescribes that a preliminary report shall be issued within thirty...
Forum: Rumours & News
18th Mar 2014, 18:10
Replies: 11,831
Views: 24,371,947
Posted By snowfalcon2

AIS, MMSI, IMO

A few tidbits on this topic:

- AIS is not mandatory for ships less than 300 tons dw. Neither for military ships, I believe. So don't expect AIS from every rescue ship.

- An AIS transponder...
Forum: Rumours & News
17th Mar 2014, 19:16
Replies: 11,831
Views: 24,371,947
Posted By snowfalcon2

Turning off the transponder in-flight

I'm trying to sketch a workable technical solution that makes it all but impossible to go invisible the way MH370 did.

From the various comments, it's evident that there are indeed legal...
Forum: Rumours & News
16th Mar 2014, 15:01
Replies: 11,831
Views: 24,371,947
Posted By snowfalcon2

Re transponder turn off

Yes.
But.
Turning off the transponder in flight without notifying ATC is.... a no-no.

Technology exists that can solve this dilemma, see e g here...
Forum: Rumours & News
16th Mar 2014, 12:24
Replies: 11,831
Views: 24,371,947
Posted By snowfalcon2

VinRouge

I stand corrected on this Doppler thing :O . Perhaps some RF experts are even working on it.
Forum: Rumours & News
16th Mar 2014, 11:25
Replies: 11,831
Views: 24,371,947
Posted By snowfalcon2

VinRouge

Just a moment please. Sputnik was a polar-orbiting satellite, not a geostationary one. And the Americans certainly did not have any geostationary satellites in 1957.

You can track polar orbiters...
Forum: Rumours & News
16th Mar 2014, 10:11
Replies: 11,831
Views: 24,371,947
Posted By snowfalcon2

Cura

Thanks for that, but it was actually the "Triggered Transmission of Flight Data (http://www.bea.aero/en/enquetes/flight.af.447/triggered.transmission.of.flight.data.pdf)" working group report that I...
Forum: Rumours & News
16th Mar 2014, 09:22
Replies: 11,831
Views: 24,371,947
Posted By snowfalcon2

awblain, No, of course, but they may...

awblain,



No, of course, but they may think twice if they know they can be traced.

My post was actually partly inspired by a BEA study post-AF447 investigation, referred to somewhere in...
Forum: Rumours & News
16th Mar 2014, 08:44
Replies: 11,831
Views: 24,371,947
Posted By snowfalcon2

Tscottme

I'm sure this question will be addressed in the eventual accident report, so a few words from an engineer.

Let's recall that the B777 and its systems design was done in the early 1990s....
Forum: Rumours & News
15th Mar 2014, 11:46
Replies: 11,831
Views: 24,371,947
Posted By snowfalcon2

In theory, yes. The phone may try to perform a...

In theory, yes. The phone may try to perform a location update, especially if it senses a new network such as at a border crossing. But (and referring to e g China Mobile statements) if the location...
Forum: Rumours & News
15th Mar 2014, 10:42
Replies: 11,831
Views: 24,371,947
Posted By snowfalcon2

This has been discussed repeatedly during the...

This has been discussed repeatedly during the last 24h but I'd like to summarize.

I have seen two reasons so far.
1. in case of equipment fire there has to be a means to cut electrical power to...
Forum: Rumours & News
15th Mar 2014, 10:03
Replies: 11,831
Views: 24,371,947
Posted By snowfalcon2

StormyKnight That's an interesting...

StormyKnight


That's an interesting picture but I'm not sure the signal strength method is the only method available for "triangulation" in this case. I'll outline some general methods that are...
Forum: Rumours & News
10th Mar 2014, 16:24
Replies: 11,831
Views: 24,371,947
Posted By snowfalcon2

AN2 driver,

If you mean the Vung Tau sighting,
Sorry to disappoint you but in previous postings the flight plan route was over the Vietnamese mainland via BITIS over TSN and HCMC.
Forum: Rumours & News
10th Mar 2014, 16:14
Replies: 11,831
Views: 24,371,947
Posted By snowfalcon2

barti01,

Yes.
Vung Tau Port Authority already had a passing ship check the area and it reported nothing special. The Port Authority have also sent out a fast boat, but it will not have arrived before...
Showing results 1 to 35 of 244
 
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