ADS-B Rolled out.

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barkingmad
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ADS-B Rolled out.

#1 Post by barkingmad » Wed Apr 03, 2019 8:00 am

Just announced, satellite tracking "fully live and being trialled over N Atlantic".

Presume MH370 has accelerated this development?

Nothing like a good juicy accident to propel safety measures, but only after the event!

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Re: ADS-B Rolled out.

#2 Post by ian16th » Wed Apr 03, 2019 9:23 am

Anyone calculated the bandwidth requirements to do this world wide and 24/7?
Cynicism improves with age

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Re: ADS-B Rolled out.

#3 Post by Undried Plum » Wed Apr 03, 2019 9:26 am

Does this mean that the North Atlantic Track system can now be abolished and replaced with a free flight system which lets flights go on their most efficient route from A to B and at their preferred speed?

Other than the reduced separation minima, the NAT system is little changed from the 1950s when it was organised by HF radio transmissions to Shannon which were then typed into telex sent to Prestwick who gave a clearance which had to be sent to Shannon for onward transmission to the aircraft.

The system was set up in the days when navigation was done by a man with a sextant and a pencil and log/trig tables.

Time to move on, methinks.

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Re: ADS-B Rolled out.

#4 Post by barkingmad » Wed Apr 03, 2019 9:38 am

Plum, does this answer your query?

The future's bright, the future's Orange, to quote that old mobile phone company advert!!

Satellite plane-tracking goes global https://www.bbc.co.uk/news/science-environment-47793983

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Re: ADS-B Rolled out.

#5 Post by Boac » Wed Apr 03, 2019 10:26 am

"a man with a sextant and a pencil and log/trig tables." - aka 'a navigator'

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Re: ADS-B Rolled out.

#6 Post by ExSp33db1rd » Thu Apr 04, 2019 12:09 am

Student pilot recently asked me ... "What's a sextant"

One could weep.

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Re: ADS-B Rolled out.

#7 Post by Slasher » Thu Apr 04, 2019 6:40 am

ExSp33db1rd wrote:
Thu Apr 04, 2019 12:09 am
Student pilot recently asked me ... "What's a sextant"

One could weep.
Ha! I'll match your student pilot and raise you a cadet who asked me yesterday "how did you calculate (ROD needed to maintain a 3* slope which is 1/2 x GS) that in your head??!!"

He was manually flying a FD off raw data ILS approach.

I didn't weep. I just accept the inevitable that the future of airline pilotry rests with this kid, and that thankfully if he ever reaches captainhood I'll either be dead or long given up airlines as a form of travel.

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Re: ADS-B Rolled out.

#8 Post by barkingmad » Thu Apr 04, 2019 6:47 am

Strange student pilot not knowing what 'sextant' was?

Lotsa angst in the meeja over youngsters 'sexting' each other now they've got mobile phones?

Incidentally, anyone on this forum noticed how unreliable is the compass feature in the I-phone? It might account for some of the dorks getting lost on mountains & moors and needing rescue?

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Re: ADS-B Rolled out.

#9 Post by ExSp33db1rd » Thu Apr 04, 2019 7:59 am

Ha! I'll match your student pilot and raise you a cadet who asked me yesterday "how did you calculate (ROD needed to maintain a 3* slope which is 1/2 x GS) that in your head??!!"
Give him a 1:60 rule Nav. exercise to correct an off-track error !

Can they tell you what the reciprocal bearing of the runway is without looking at the chart ?

When flying towards oncoming traffic in the middle of the night, when it was reasonably quiet and boring, and hearing their position report for a waypoint that they had just passed and we were approaching from the opposite direction, it was fun to work out their groundspeed from the estimate of the time they had given for the waypoint we had just left, and knowing ours of course, work out precisely when we would pass. Was often asked " how d'you do that ? "

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