Enter reg first, then save or amend stored balloon profile weights.
Stored balloons will appear here.
Balloon profile & stored weightsUsually set once per balloon. Enter reg first, then load or amend before saving.
▾
Balloon profile ready.
Passenger weights
Weather inputs
Height
Direction
Bearing (°)
Speed (kt)
Temp (°C)
Load & lift inputs
Operating thresholds
Setup outputs
Launch status
--
Decision reason
--
Total load (kg)
--
Load status
--
Spare lift (kg)
--
Surface wind / gusts
--
Drift extreme bearings
--
Drift extreme range
--
This page is the only place that sets the shared flight inputs. Flight Pack and Drift Map inherit these values.
This tool supports flight planning and in-flight awareness, bringing key information together in one place.
Pilots should use it alongside appropriate sources and apply their own judgement and training when making decisions.
Data, mapping, and tracking are provided from external and device sources and may vary.
Flight Pack — one-page summary
Launch
--
Date
--
Weather
--
Efficiency
--
Time
--
Duration
--
Load
--
Ceiling
--
Balloon
--
Pilot
--
Overall
--
Thermals
--
QNH
--
Drift range
--
Reason
--
Extra MET detail
Expandable technical layer for pilots who want more than the quick operational summary.
Humidity
--
Temp / dew spread
--
Visibility
--
Rain risk
--
Precip amount
--
Pressure trend
--
Gust spread
--
Instability signal
--
Time
RH
Spread
Rain
Vis
Pressure
Load forecast to populate extra MET detail.
Wind & temperature profile
Height
Dir / Bearing
Speed (kt)
Temp (°C)
Notes
Load & operating notes
Lift available
Pilot
Passengers
Cylinders
Gas
Envelope
Basket
Burner
Miscellaneous
Manifest hours
Spare available lift
Weather overview
Surface
Upper max
Drift trend
Weather note
Load note
Share summary
This tool supports flight planning and in-flight awareness, bringing key information together in one place.
Pilots should use it alongside appropriate sources and apply their own judgement and training when making decisions.
Data, mapping, and tracking are provided from external and device sources and may vary.
Share or print the current Flight Pack summary.
Met — pilot technical breakdown
Focused met window for the launch. This page stays operational rather than becoming a full weather app.
Customise MET View
Choose a simple, detailed, or custom pilot view. Your preference is saved on this device.
Simple
Launch
--
Date
--
Launch time
--
Condition
--
QNH
--
Dew point
--
Surface temp
--
Surface wind / gusts
--
Live Radar
Current conditions only
Embedded Windy live weather map for current operational awareness. Opens on radar/cloud weather view and is not linked to the selected flight date unless opened through Live Radar nowcast mode.
Radar loading…
Location pending
Cloud
Cloud base
--
Cloud type
--
Coverage
--
Layer mix
--
Load forecast to populate cloud information.
Inversion & landing risk
Inversion status
--
Estimated drop window
--
Surface wind after mix
--
Landing risk
--
--
Wind gradient — 250 ft increments
Select the hour to view the full wind stack without adding extra scroll.
Height
Track
From
Bearing
Speed
Temp
Launch window — 3 hours either side
Time
Cond
Wind
Gust
Temp
Dew
Window is centred on the selected launch time using the same Open-Meteo forecast pull.
5-day AM / PM overview
Load forecast to populate the next 5 days.
Weather data source
This section identifies the forecast source used for the MET page. If the planner uses a different regional source or a future Met Office validation layer, this source cell should update so pilots can see where the data has come fdiv class="action-row">
Share the full MET page data by phone share sheet or WhatsApp.
Press Change Launch Location, then long-press the new launch point on the map.
SA Layers
SA guidancePersonal SAs are managed on the SAs page. National SAs are optional pilot-imported files. Airspace and Airfields use embedded BBAC files supplied with this build; use the latest official source for operational planning.
Altitude vector data
Height
Dir / Bearing
Speed
Distance
End Point
Target fit
SAs
TIME
--
SPD
-- kt
TRK
--°
ALT
-- ft
DIST
-- nm
Ready.
----↑
Passenger Briefing
Passenger-facing safety briefing in simple step-by-step order from arrival through landing.
Arrival at Launch Field
Stay next to the vehicle until instructed otherwise.
Follow all pilot and crew instructions at all times.
Be aware of moving vehicles on the field.
No smoking, vaping, or dangerous items.
During Setup / Inflation
Keep clear of the fan (minimum 2 metres).
Do not stand between the vehicle and basket.
Keep loose clothing, hair, and jewellery secured.
Do not enter the setup area unless instructed.
Boarding the Basket
Use the footholes / steps to get in and out.
Be aware the basket may move during boarding.
Ask for assistance if required.
Do not climb or stand on seats.
During the Flight
Do not touch controls, ropes, or pilot equipment.
Keep all body parts inside the basket.
Do not lean over the edge.
Do not drop anything overboard.
Photos and videos are allowed, but no live calls or video calls during the flight.
Landing Position (Critical)
Hold rope handles with both hands.
Feet together, knees slightly bent.
Back pressed firmly into padding.
Face the direction instructed by the pilot.
Stay in position until told otherwise.
Landing & After Landing
Expect multiple contacts or bumps on landing.
Remain in landing position until instructed.
Do not exit the basket until told.
Exit using footholes — do not jump.
Crew Briefing
Quick, field-ready briefing — what we actually do on launch.
Arrival / Field Prep
Stay aware of vehicles, public, and obstacles
Follow instructions — don’t assume
Lift properly — team lifts only
Keep the area tidy and controlled
Fan (High Risk Area)
Check area is clear before starting
Secure clothing, hair, loose items
Know the kill switch
Hold it steady — don’t let it move
Never move or tip while running
Keep people clear
Throat (Mouth)
Hold the mouth open and flat
Keep airflow clean into the envelope
Watch ropes and cables underfoot
Adjust smoothly — don’t just let go
Move away when told
Crown Line (Controlled Lift)
Start with light tension during cold inflation
Add gentle control as heat comes in
Increase pressure as the balloon lifts
Help bring the basket upright smoothly
Keep it steady — no sudden movements
Never wrap rope around yourself
Launch
Weight On — full weight, feet on ground
Light Hands — ready, minimal contact
Hands Off — release and step back
Keep feet clear of basket movement
Landing
Stay clear of the front of the basket
Approach from sides or behind
Be ready to take weight
Follow pilot instructions only
Landing Card — flight finish
A human-readable name for the landing card and Personal SA record.
Tap to save your current GPS position into the landing GPS field, then send the Google Maps pin.
Save to Personal SA’s
Uses the landing nickname/title, GPS and landowner/contact details from this card.
Landing summary
Launch location
Flight date
Launch time
Landing nickname
Landing GPS
Landing time
Landowner
Contact
Address
Comments
Flight Track Viewer
Select a saved flight record to view the track.
Saved flight tracks can be reviewed as QNH height or AGL relative to the recorded start altitude.
Replay layers
SAs — saved local map layer
SAs are your own saved landing knowledge, separate from national BBAC SAs, and automatically show as subtle green/red 200m rings on the Drift Map.
National SAs
Optional pilot-uploaded national SA overlay. This app does not supply or verify national SAs — use the latest official file for your own flight planning.
No national SA file loaded.
Share / merge Personal SAs
Export creates a small local Personal SA file that another pilot can import. Import merges SAs into this device and keeps the Drift Map layer updated.
Ready to export or merge saved SAs.
Add / edit site
SA boundary
Boundaries are edited from an existing saved SA. Save the site first, then use Edit Boundary from the Saved SAs list.
Saved SAs stay on this device and appear on the Drift Map.
Saved SAs
--
SA Boundary Editor
Hidden editing page. Tap points around the field boundary, close the shape, then save it back into the selected Personal SA.
Selected SA
--
Type
--
Boundary
--
Open an existing Personal SA to edit its boundary.
Flight Records — save to phone and print
Current flight record
Save flight record creates a standalone flight file for the phone and also keeps a copy in the saved list below.
Current record summary
--
Saved flights on this device
--
These saved flights stay on this device in browser storage. The downloadable flight record file can then be kept separately on the phone and opened later without the main planner.
Load the site weather to show the current tether decision.
Weather
Main and extra MET details in one place
Source appears after loading tether weather.
Compare another forecast source for the same location and time.
Second opinion appears here.
Surface wind
--
Bearing / travel
--
Gusts
--
Weather
--
Rain chance
--
Humidity
--
Temp / dew spread
--
Visibility
--
Precip amount
--
Pressure
--
Cloud base
--
Cloud cover
--
Feels like
--
Window
Wind
Gust
Travelling
Load tether weather to show -1 hr / selected / +1 hr wind window.
Extra MET detail is shown with the main tether weather details.
Set a start time, then slide in 1-hour steps.
Start+2h+4h+6h+8h
Surface Drift / Layout Awareness
Load tether weather to draw a surface downwind awareness line from the tether site.
Windy
Current conditions only
Embedded Windy live weather map for tether decisions on site. Uses current conditions only.
Radar loading…
Location pending
More / Log
No tether running.
Tether Log Records
Start and finish a tether to generate a logbook-ready summary.
Help / Support
Nexus Tether is designed as a simple tether weather and operational awareness tool. Select or type a tether location, load the forecast, review the conditions, then use Start / Finish Tether when you want to create a basic tether log.
Structured training flow. Expand later with notes, PDFs, or videos.
1. Arrival & Field Setup
Safe arrival and parking
Field awareness
Initial setup positioning
2. Equipment Offload
Safe lifting
Controlled unloading
Equipment placement
3. Basket Orientation & Prep
Front / back identification
Launch direction
Positioning
4. Rigging the Basket
Poles fitted
Carabiners orientation
Pole covers
Gas lines
Burner test
5. Fuel System Setup
Cylinder direction
Primary vs slave
Manifold awareness
6. Basket to Side Position
Controlled tip
Crew positioning
Stability checks
7. Envelope Setup
Correct distance
Unpacking
Wind alignment
8. Envelope Connections
Lines attached
Turning vents
Candy line first
9. Envelope Deployment
Pull out
Stretch
No twists
10. Crown Setup
Tabbing in
Crown line secure
11. Crew Role Training
Crown line handling
Fan safety
Manifold awareness
12. Inflation & Uprighting
Basket upright
Crew positions
Pilot comms
13. Final Rigging
Crown line in
Carabiner attach
Scoop attach
14. Pilot-Controlled Phase
Follow pilot only
Launch support
How To Use The Flight Planner
1. Flight Setup
Enter your launch location using either the search box, recent locations,
current GPS position or direct latitude / longitude entry.
Select either:
Manual — enter your own launch time
Sunrise — auto loads local sunrise launch time
Evening — auto loads evening launch time
Press Confirm location & load forecast to retrieve weather, winds, QNH,
cloud and drift information.
2. MET Page
The MET page provides a quick operational overview including:
Conditions summary
Cloud base and cloud type
Surface and upper winds
Temperature and dew point
QNH
Hourly wind layers and drift overview
3. Drift Map
The drift page shows estimated flight direction at multiple heights.
Each spoke represents expected travel direction for that altitude.
Use this to:
Check likely landing areas
Avoid airspace issues
Compare different flying levels
Plan fly-ins and events
4. Passenger & Balloon Data
Passenger names and weights can be entered manually and saved.
Balloon profiles can also be stored for quick reuse.
The planner automatically calculates payload totals and fuel figures
using the saved balloon data.
5. In Flight Tracking
The Flight Flow page provides live GPS flight tracking.
Live altitude
Track direction
Distance travelled
Ground speed
QNH / altitude reference
Press Start at launch and End after landing.
The system stores the full flight track for later review.
6. Landing Card
Record landing details including:
Landing location
Landowner information
Comments and notes
Friendly / avoid landing area references
7. Save Flight Record
Saved flight records store:
Flight times
Launch and landing details
Passenger information
Weather and QNH
Balloon and fuel data
Live GPS flight track
Records are stored locally on the device and can also be downloaded
as standalone files.
8. View Flight Track
Open a saved flight and press View Flight to display
the recorded track on the interactive map viewer.
Tap the blue track line at any point to display the recorded altitude
and time for that section of the flight.
9. Landing Areas
Landing Areas allow pilots to store useful launch and landing sites
directly onto the map system for future reference.
Good launch sites
Good landing fields
Avoid / sensitive areas
Notes and descriptions
10. Important Notes
This system is an operational planning aid only.
Pilot judgement always takes priority.
Weather data may update or change between forecasts.
Always comply with local aviation regulations and permissions.
This tool supports flight planning and in-flight awareness, bringing key information together in one place.
Pilots should use it alongside appropriate sources and apply their own judgement and training when making decisions.
Data, mapping, and tracking are provided from external and device sources and may vary.
Updates
Current build notes for FlightFlow testers and pilots. Summary updates only — not a full technical change log.
V332 — 08 June 2026
Live radar and cloud map upgrade
Current
Added embedded Windy live weather mapping to FlightFlow for improved radar and cloud awareness.
Live Radar is available from the Home page, MET page and Quick Tether workflow.
Replaced the previous precipitation-map test with an interactive radar/cloud view that supports local zooming and animation.
Designed to help pilots assess current rain and cloud movement without leaving FlightFlow.
V278 — 25 May 2026
Embedded BBAC airfields layer
Added an embedded BBAC airfields layer using the supplied static file, so pilots do not need to import it separately.
Layer is toggleable on the Drift Map and In Flight map.
Airfield markers show the available BBAC waypoint details in a map popup.
V277 — 24 May 2026
Drift Map launch-location replanning
Drift Map now includes a Change Launch Location workflow for testing alternative launch sites without restarting the plan.
Long-press on the Drift Map now moves the launch location instead of running the old altitude-advice action.
Setup location, MET forecast and drift calculations refresh from the new launch point while keeping the selected date, time and flight settings.
V267 — 06 May 2026
Quick Flight and startup location restore fix
Quick Flight floating shortcut button added for fast access directly to live flight tracking.
Startup location restore now clears broken saved locations where the label exists but coordinates are invalid, preventing 0.0000, 0.0000 forecast pulls.
V232 — 05 May 2026
FlightFlow visual refresh and setup improvements
New FlightFlow branding added with simplified header.
Dark Nexus Aero background style applied across the app.
Location search now waits until at least three letters are entered.
Recent locations now transfer back into the launch box and auto-find correctly.
Google Earth export remains retained in the saved flight workflow.
QNH now refreshes directly from the latest forecast pull each time forecast data is loaded.
Flight Pack and drift summary layouts tightened for less scrolling on mobile.
Styled Google Earth export added with cyan track, altitude curtain, and launch/landing markers.
Internal cleanup pass completed: removed old dead references without changing the pilot workflow.
Internal map viewer/editor pages hidden from normal Next/Prev navigation.
Live flight tracking now requests screen wake lock so tablets/phones stay awake during active tracking where supported.
Live flight End now stops tracking, saves landing time/GPS, and opens the Landing Card automatically.
In-flight page now opens with the live map positioned cleanly below the Flight Flow navigation bar.
Flight Flow navigation arrow enlarged so the top bar reads more clearly as a dropdown control.
In-flight page now hides the logo band so the live map starts directly below the Flight Flow navigation bar.
In-flight map given extra top clearance so Leaflet controls are not clipped by the Flight Flow navigation bar.
MET source panel now uses the confirmed launch-location label and coordinates, avoiding conflicting reverse-geocoded address text.
Passenger and Crew briefing page titles updated for clarity.
Saved balloon profile dropdown added beside Balloon Reg, with Balloon Type/Make stored in each profile.
Print Summary changed to direct browser print action so Android/Chrome treats it as a real user-triggered print request.
Bottom Prev/Next navigation order corrected so Help and Updates pages move correctly.
Build note policy
How updates will be recorded from now on
One general update entry per day, added on the first build after 4pm.
Entries will stay pilot-facing and concise.
Small behind-the-scenes fixes will only be listed when they affect real use.