View source for 2018-01-31 43 19

{{meetup graticule
| lat=43
| lon=19
| date=2018-01-31
| graticule_name=Prijepolje, Serbia
| graticule_link=Prijepolje, Serbia
}}
__NOTOC__
== Location ==

Half way between and 11.5 km above Krnjača and Jabuka, Montenegro, flying at around 800 km/h. Thanks, Ryanair - you nailed this one.

== Participants ==

[[User:Sourcerer|Sourcerer]]

== Plans ==

All my journeys by air seek the [[Air_geohash_achievement]]. The 10 arc second rule means you need to be under 310 metres from the hashpoint. My napkin aproximath suggests there as a 0.1% chance of meeting this goal crossing one graticule. On a mid length flight you might cross 50 graticules so now there's a 5% chance of success. Frequent flyers will certainly succeed eventually.


== Expedition ==

I had programmed the decimal parts of the coordinates into my Garmin eTrex 20. Every 10 to 15 minutes I re-programmed the graticule coordinates and watched the distances fall and rise again. In 43,19 the distance was dropping rapidly and after each screen update I was grabbing the image. The best screen shot was at 123 metres from the hashpoint, well within the requirements.

A bit of post-processing in Google Earth confirmed the result.

The eTrex 20 lacks a barometric altimeter so you get true altitude in an aircraft and not the cabin pressure altitude.

== Photos ==
<gallery caption="Gallery" widths="200px" heights="200px" perrow="3">
Image:2018-01-31_43_19_Sourcerer_1.jpg | Google Earth Proof
Image:2018-01-31_43_19_Sourcerer_2.jpg | FLight Path
Image:2018-01-31_43_19_Sourcerer_3.jpg | GPSr Proof
Image:2018-01-31_43_19_Sourcerer_4.jpg | Proof of Flight
</gallery>

== Achievements ==
{{#vardefine:ribbonwidth|800px}}

{{air geohash
| latitude = 43
| longitude = 19
| date = 2018-01-31
| name = Sourcerer
| vehicle = Boeing 737 800
| subcategory = passenger
}}

Commercial flights travel as fast as they are permitted by air traffic control or by the air frame limits.

{{Speed racer
| latitude = 43
| longitude = 19
| date = 2018-01-31
| name = Sourcerer
| speed = 800 km/h
}}

{{Juggernaut achievement
| latitude = 43
| longitude = 19
| date = 2018-01-31
| name = Sourcerer
| deviation= 53
}}

{{Public transport geohash
| latitude = 43
| longitude = 19
| date = 2018-01-31
| name = Sourcerer
| busline = Ryanair 737 800
}}

{{Multihash2
| date = 2018-01-31
| name = Sourcerer
| count = 2
}}

{{Last man standing
| latitude = 43
| longitude = 19
| date = 2018-01-31
| name = Sourcerer
| gender = man
}}

{{Virgin graticule
| latitude = 43
| longitude = 19
| date = 2018-01-31
| name = Sourcerer
}}

Did Sourcerer drag along the other 180 passengers and crew on the flight?

{{Sourcerer_links
  | prev = 2018-01-03 39 27
  | curr = 2018-01-31 43 19
  | next = 2018-01-31 52 1
  | date = 2018-01-31
}}

[[Category:Expeditions]]
[[Category:Expeditions with photos]]
[[Category:Coordinates reached]]