Built

What changed,and what it is made of.

Paraguide ships most days. This page keeps the notes in plain words, names every source a read is built from, and says how a read is checked before a pilot sees it.

What changed

29 September 2026

  • Paraguide is built for the Alps now, not only Switzerland: every Alpine country, with the briefing reading about 4,000 launches in eight countries, Spain and the UK included.
  • The UK joins: 534 launches with their takeoff directions, and the Met Office's own UKV model for the wind at launch, which reaches Wales, Cornwall and western Scotland where the German model stops.
  • A station only counts as live when it stands within 40 km of your launch. Far from a network, the read says no stations nearby instead of borrowing a distant one.

9 September 2026

  • Paraguide is built for flying in Switzerland. That is where the read has everything under it: MeteoSwiss ICON-CH1 and ICON-CH2 hour by hour, the SwissMetNet stations measuring now and back through your own flying days, the föhn gap across the Alps, BAZL airspace, and the SHV's 3x3 as the shape of the read itself.
  • Launches beyond the Swiss models still get a briefing, and it names the model that answered, thins out where the stations do, and drops the layers that do not apply.
  • Your launch-wind band is now the same instrument as today's forecast: the model that forecasts your launch also reads the days you flew there, at your launch and your launch hour. A nearby station's reading stays beside it as the measured cross-check, named, with how far away and how much higher it stands.
  • Ask answers conditions questions from that same briefing, for any launch you name.

3 September 2026

  • Briefing and Debrief are the two halves of the app, and the navigation says so. The map lives inside the Briefing.
  • The Briefing opens to every pilot. Swiss launches carry the station history today; the read says which sources answered.
  • Annecy gets a full briefing: its launches, its airspace stated honestly, and the model that answered named on the read.
  • Parcel tops for every launch the ICON-CH2 grid covers.
  • Every climb a pilot sees is net, the number on the vario. The usable top of the day is read against the pilot, not the parcel.
  • The thermal engine has its first backtest against real flights, and the boundary-layer inputs are archived per launch and hour so every read can be re-run later.
  • Every read prints what it is built from. The spot card on the map does too.
  • A briefing is computed once per launch and day and shared for five minutes; the upstream calls behind it are shared for an hour.
  • The flight card is a postcard: the place on real imagery, the flight's line across it.

2 September 2026

  • The launch wind at each of your past flights comes from the weather station that was on the hill that hour. SwissMetNet history replaces the reanalysis grid.
  • A registry for club and network stations, so a hill's own station can be the memory for its launch wind.
  • Your history in the Briefing: the wind you launched in, the climb you found, the wind aloft, drawn as ranges with today's value against them.
  • The Briefing room settles: the map on top, the read beside the window, the charts unfolding under each sentence on a tap.
  • The logbook heatmap fills the desktop.

The notes start here. The logbook, the 3D replay, Wrapped, Gear, Ask and the iPhone beta were built before this page was.

What a read is built from

  • MeteoSwiss ICON-CH2

    The forecast the day is read from: wind by height, thermals, cloudbase, the hours.

  • MeteoSwiss SwissMetNet

    Station history for the wind on the hill at the hour of each launch you have made.

  • swisstopo

    Terrain and aerial imagery for Swiss launches, the replay and the flight postcards.

  • Esri World Imagery

    Aerial imagery outside Switzerland, under licence.

  • Your tracklogs

    Every IGC you import: the climbs, the wind aloft, the launches, the wings, the sites. The read is yours because the archive is.

  • The library

    Understanding the Sky, Thermal Flying, Cross Country Flying, Mastering Paragliding, The Art of Paragliding, and a flying school's published material. Cited in every answer that uses them.

  • Expert pilots

    Pilots who fly for a living, credited by name where their knowledge is used.

How a read is checked

  1. Thirty-eight evaluation suites run before a change ships: the envelope, the station archive, the day kinds, the climb module, the words a read may use.
  2. The thermal engine is backtested against archived inputs and real flights. The first verdict is written up, and the archive grows every day.
  3. Numbers are computed, never generated. Ask answers from the same numbers as the Briefing and cites its sources; a question it cannot ground is blocked before it reaches the engine.
  4. Never a verdict. The Briefing describes the day and your history against it. The decision stays with the pilot, and the copy is written so that stays true.
  5. Copy is checked against the product: a claim on this site has to be true in a pilot's hands today.