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Jonny Lutton
747 Captain & Flight Training Manager. Used to fly too. FRAeS. All my own thoughts and words and not those of my employer.
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Jonny Lutton May 16
Replying to @gps117
The iPhone traditionally doesn’t do well with the northern lights.
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Jonny Lutton May 16
This might be fun flying home from JFK tonight.
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Jonny Lutton May 11
Replying to @captwingster
Indeed. Brought it back from KLAS into T3 yesterday evening.
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Jonny Lutton May 11
Replying to @tr6150pi @MaxK_J and 4 others
This has got to be fairly achievable, no?
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Jonny Lutton May 11
Replying to @MaxK_J @Tim_the_Pilot
Still looking for the BOAC holy grail....
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Jonny Lutton May 10
A bit of Landor for your evening. Plus a bit of LHR tower thrown in for balance.
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Jonny Lutton May 9
These retrojets are like London busses. You wait for ages to fly any of them and then you get two in a row! about to get airborne to KLAS for my return trip in the early hours of tomorrow.
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Jonny Lutton May 9
Replying to @gkirk1983
Very much. A fantastic aircraft.
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Jonny Lutton May 9
A bit of weather building over KLAS.
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Jonny Lutton May 8
Not my finest photograph - as I was getting drenched at the time, but my first trip in a 🕺
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Jonny Lutton May 5
Replying to @aydinke
I think those traditional IFR/VFR skills are always important.
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Jonny Lutton May 5
Replying to @RuraPenthe0
Not at all! Only one part of a much bigger system built around a redundancy philosophy for long range ops (such as oceanic airspace).
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Jonny Lutton May 5
Replying to @Waddy6X @RuraPenthe0
Yes, our INS is referred to as IRS on the FMC. We have 3 IRS systems, which take position updates from GPS, DME-DME and VOR-VOR triangulation. GPS is the most accurate, but our NAV redundancy is considerable if GPS fails (or is jammed).
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Jonny Lutton May 5
Yes.
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Jonny Lutton May 4
Typo - DME/DME was 0.37nm. Point remains valid tho!
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Jonny Lutton May 4
Replying to @re_keogh
Sometimes. Depends on the region.
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Jonny Lutton May 4
You can see the DME/DME ANP is 0.34nm (next most accurate after GPS), while IRS ANP Was somewhat less accurate. The DME/DME performance was still well within the RNP for the airway.
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Jonny Lutton May 4
Replying to @RuraPenthe0
GPS is one small part of a much broader navigation system. We knew exactly where we were at all times!
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Jonny Lutton May 4
Replying to @Midnight_Run
GPS outages are usually NOTAM’ed. We have a warning that you can expect GPS jamming on the approach into Beruit and Riyadh - due to military factors in Saudi and Syria. These can sometimes cause some interesting Nav effects, but crews are prepared to deal with it safely.
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Jonny Lutton May 4
Replying to @RK_ATP @jonostrower
About 10-15 mins.
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