STRATOSPHERE

1About this document

StratOSphere is a browser-based simulator for training operators of tactical unmanned aircraft — first-person-view (FPV) strike quads, ISR multirotors, bombers, interceptors, fixed-wing and VTOL aircraft and ground robots. It runs in a desktop web browser at https://app.stratos.software, over photoreal 3D cities, prebuilt training ranges and imported terrain.

This document is the operator and instructor manual. It describes what is on the screen today: every menu entry, the keys that drive the aircraft, the training content, the multi-pilot and coaching tools, and the settings. It was written by walking the live application (build 20260925-123327Z, 25 September 2026) and by reading its source code. Anything that could not be confirmed on that build is either left out or marked as a known limitation.

2Getting started

What you need

Licence gate

On the first visit the page shows Enter your license key to continue. Type the key and press Unlock (or Enter). The key is validated by the server over an encrypted connection; the browser keeps only a signed session token, not the key.

• The token is verified with the server on every load.
• If the server cannot be reached (no network, a server restart), a token that has already been validated online lets the application open anyway. A key that has never been validated online cannot be used offline.
• If the server answers that the key is not valid, the licence gate is shown again.

The main menu

After the licence check the main menu opens. It is the hub from which every module starts.

Moving around the application

The pause menu

Esc (or P) in flight opens the pause menu. Note its own caption: the simulation is still running behind it — pausing does not freeze the world, so land or hover somewhere safe first.

Before you arm, a ⇄ Change drone & loadout button at the bottom of the flight picture lets you pick a different airframe, payload and warhead; it is free to change until you arm.

Your first flight

1. On the main menu press QUICK FLIGHT and choose The Range, the first card. The range loads behind a curtain that names each stage; you start on the pad.
2. Press Space to arm the motors.
3. Hold W to add throttle and lift off. The keyboard throttle ramps and holds where you release it; S takes it back down.
4. Steer with the arrow keys: ▲ ▼ pitch forward and back, ◀ ▶ roll. A / D yaw.
5. Press C to switch between the first-person (FPV) view and the chase camera.
6. After a crash press R to respawn; hold R for two seconds for a completely fresh flight.
7. Press Esc for the pause menu and choose Return to main menu when you are done.

3Controls and keyboard reference

This is the complete in-flight key table as the application defines it (the same table feeds the flight hint bar and Settings › KEYBINDS). Some keys depend on the airframe: an ISR multirotor, an interceptor or a ground robot gives a few keys a different meaning, noted in the table.

Flying

Payload and weapons

Sensors and view

Signal

Application

Rebinding keys

The actions that have a name in the key table — arm, respawn, catapult launch, camera, mini-map, full screen, minimal OSD, telemetry, motion blur, signal FX, mute, the five gimbal keys, warhead, release, command detonate and the ground-robot keys — can be rebound in Settings › KEYBINDS. A few further actions have no key by default and can be given one there: Flight gear (envelope), VTOL transition, Motor-out drill, Inject motor failure, Clear all failures, Airspace enforcement, the two swarm commands and Hide / show interface. A rebound key replaces the default everywhere, including in the hint bar.

On the KEYBINDS tab, click a key, then press the key you want — it is bound and saved at once; Esc cancels. pad binds a gamepad button to the same action.

4Game controllers, RC transmitters and the phone controller

StratOSphere reads any controller the browser exposes through its standard gamepad interface: an Xbox or PlayStation pad, or an RC transmitter (for example a RadioMaster, Jumper or FrSky radio) switched to USB joystick / game-controller mode. As soon as a controller is bound, its sticks take over from the keyboard whenever you are in an aircraft. The controller chip at the top of the Settings screen shows the device name in green when one is connected and ● NO CONTROLLER in red when none is.

Calibration happens in two layers. Automatic binding runs the moment you plug the controller in and is often enough on its own. The calibration wizard (Settings › CONTROLS › 🎮 Calibrate controller) walks you through every stick and switch one movement at a time and replaces the automatic result with yours. This chapter describes exactly what each layer does.

4.1 Before you connect

1. Use Chrome or Edge on Windows or macOS. In Chrome an EdgeTX radio delivers channels CH1–CH8 as eight axes and CH9 and above as buttons. Firefox on macOS and Safari stop after the sixth axis, so CH7 and CH8 do not reach the simulator there.
2. Put the radio in joystick mode. On EdgeTX / OpenTX, connect the USB cable and choose USB Joystick (HID) when the radio asks. Leave the joystick in its default (Classic) mapping unless you already use the advanced layout from another simulator — the advanced UFDS-style layout is recognised too.
3. Select a model on the radio with the sticks on CH1–CH4 (AETR is the EdgeTX default; TAER and AERT are also recognised) and your switches mixed onto CH5 and above. A switch or pot that is not mixed onto a channel never reaches the browser, so it cannot be bound.
4. Park the sticks before you plug in: throttle fully down, the other sticks centred. The simulator uses this rest position to find the throttle (see 4.2).
5. Keep the StratOSphere window focused. Browsers pass controller input only to the window that has focus.

4.2 What happens automatically when you plug the controller in

Within about a second StratOSphere reads the name and USB identity of the device and binds it with the layout for its family. A card appears at the bottom of the screen naming the radio (see 4.3).

Throttle-at-rest check. If exactly one stick axis rests at the bottom and the others are centred when the radio connects, that axis is taken as the throttle. A model set up TAER or AERT is re-ordered on the spot; the card shows the order it found (for example AETR · THROTTLE CH3 · AXIS 3).

Switch census. For the next ten minutes the simulator watches the switches you move. A three-position switch on another channel takes over the flight mode if CH6 never moved; a momentary switch or button pressed twice becomes RESPAWN; the first pot or slider you turn becomes CAMERA TILT (S1), the second becomes ZOOM (S2); a pot found on the default VTX channel is given to the camera instead. ARM is never taken by the census — only by the card's AUTO button, the wizard or Settings — and nothing that arms, fires or releases a weapon is ever bound automatically.

Bindings are saved per device, in this browser: a TX16S and an Xbox pad used on the same computer each keep their own, and a new computer or browser starts from the automatic binding again. A binding you made yourself is kept and never overwritten by the automatic one; the card then offers USE … DEFAULTS if you want the factory layout back.

4.3 The radio card — checking and re-binding switches

The card appears for up to two minutes after the radio is bound, and at any time from Settings › CONTROLS › Check switches. It is never shown while the drone is armed or while the calibration wizard is open.

• The header names the radio, how it was bound (AUTO-BOUND or YOUR BINDING), its USB identity and its switch layout.
• One row each for STICKS, ARM, FLIGHT MODE, RESPAWN, VTX POWER, CAMERA TILT and ZOOM shows the channel it is bound to. Flip each switch once: the row ticks (✓) when the simulator sees it and shows the live state (for example ● ON, ANGLE, 2.5 W).
• AUTO re-binds one row: press it, then move the control you want within 12 seconds. The sticks and every channel another row already owns are ignored.
• CALIBRATE STICKS (shown when the stick layout still needs checking) opens the wizard; DONE closes the card.

4.4 The calibration wizard, step by step

Open Settings (main menu, left column) › CONTROLS › 🎮 Calibrate controller. The wizard has 15 steps, shown as dots at the top. Each stick step asks for one stick in one direction; the next step asks for the opposite direction, which confirms the first. A row of bars (A0–A7) shows every raw axis live, and a small FPV horizon at the bottom flies with the sticks so you see the result as you go. ✕ Cancel or Esc leaves at any time; nothing is saved until Apply.

1. CONNECT CONTROLLER — press any button or move any stick past about two-thirds of its travel. If the radio is already sending (a throttle parked at the bottom counts), this step passes by itself.
2. CENTER STICKS — let both sticks rest in the middle, throttle in the middle too, then press Continue ▸. This records the rest value of every axis; every later movement is measured from it.
3. LEFT STICK — UP (throttle): push the left stick fully up, then let it come back to the middle.
4. LEFT STICK — DOWN: push it fully down, then back to the middle. This confirms the throttle direction.
5. LEFT STICK — RIGHT (yaw), then
6. LEFT STICK — LEFT (confirms yaw).
7. RIGHT STICK — RIGHT (roll), then
8. RIGHT STICK — LEFT (confirms roll).
9. RIGHT STICK — UP (pitch forward), then
10. RIGHT STICK — DOWN (confirms pitch).
11. ARM SWITCH / BUTTON — flip your arm switch to its ON position, or press your arm button. The wizard waits for the switch's high end and binds that channel (the message reads, for example, Bound to CH5 · AXIS 5 (high).). Skip — keep current › keeps the existing arm binding.
12. FLIGHT MODE SWITCH — move the switch through every position: low = ACRO, middle = HORIZON, high = ANGLE. The wizard records each position the switch settles in and binds when it has seen three (or two, and nothing new for two seconds): Bound to CH6 · AXIS 6 · 3 positions. A button bound here toggles ANGLE / ACRO.
13. RESPAWN SWITCH / BUTTON — press the momentary switch or button you want to respawn with. Skip — no respawn button › leaves it on the R key.
14. VTX POWER — turn the pot or slider, flip the switch through its positions, or press up to three buttons (one per power level). Skip — keep the V key › leaves VTX power on the keyboard.
15. REVIEW & APPLY — one row per channel (THROTTLE, YAW, ROLL, PITCH) with the axis it found, INV when it is reversed, and a live bar. Wiggle each stick: the bar must follow the named channel, and right / up must fill to the right. If a channel moves the wrong way, press its Invert button. ◀ Redo starts again from CENTER STICKS; ✓ Apply & Save saves and shows Controller calibrated — mapping saved.

4.5 Throttle end points

The throttle is treated as a one-way axis: it has no centre deadzone, and it is scaled against the travel the simulator has actually seen from your stick. Radios report throttle as −1…1, 0…1 or reversed depending on model and firmware; learning the end points handles all of them. After calibrating, move the throttle fully down and fully up once so both ends are learned; the ends snap to exactly 0 % and 100 %. The live monitor (4.6) shows THR from ▼ 1.00 (bottom) to ▲ 1.00 (top).

The drone arms only with the throttle at zero; if it is not, the flight screen shows THROTTLE TO ZERO — lower it and arm again. For safety the arm switch must also be seen OFF before ON: if it was already ON when the drone appeared, flip it OFF and back ON.

4.6 Checking the result

• LIVE CONTROLLER MONITOR (Settings › CONTROLS) shows both sticks, the mapped channels (THR, YAW, PITCH, ROLL, ARM, VTX, camera tilt, zoom), the raw axes A0–A7 and every button, live. Its Calibrate button opens the wizard.
• DRONE AXES lists the axis bound to each stick with an INVERT toggle and a live bar.
• The line under the Calibrate button names the device and how it is bound, for example DETECTED RadioMaster TX16S · your binding, next to ⟳ Auto-bind this radio (discards the saved binding and applies the automatic one again) and Check switches (the radio card).

4.7 Fine-tuning

4.8 Changing one binding by hand

In DRONE AXES, click the AXIS n button of a channel: it reads move an axis…; move the stick you want within 8 seconds and it is bound and saved. × clears the binding. For switches, use the radio card's AUTO, or MODES — BIND ANY ACTION TO A SWITCH (4.10) to set an exact µs range.

4.9 When StratOSphere asks you to recalibrate

A small card headed SOMETHING FEELS OFF? can appear at the bottom of the screen — never a pop-up, and only while the drone is on the ground or disarmed, never in the air. It appears when a controller is connected, no calibration has ever been saved in this browser and the controller was not recognised and bound automatically; or when a mapped roll, pitch or yaw axis sits off-centre (20–90 % of its travel) without moving for six seconds, which means a stick with a bad centre or a slider bound to a flight axis. CALIBRATE opens the wizard, NOT NOW hides the card, and don’t ask again is remembered in this browser. The card closes by itself after 20 seconds.

4.10 Other controller settings

4.11 Phone as the transmitter

PHONE CONTROLLER turns an iPhone or Android phone into the transmitter: point the phone's camera at the QR code on the Settings screen (or open app.stratos.software/pad on the phone and enter the short code shown), tap Connect, hold the phone sideways, tap ARM and fly. The lowest lag is on the same Wi-Fi as the computer. The phone needs no calibration.

5Flight Academy

FLIGHT ACADEMY is the structured training path: ground school, a munitions reference, nine ladders of scored drills and your own race courses. Every drill is one task with one score out of 100. The header counts the drills you have passed out of all 69.

Theory and munitions

The drill ladders

A ladder is an ordered set of drills (rungs). Each rung adds one thing to the one below it, and a rung unlocks when the one before it scores 60. Rungs that need a particular airframe, payload or weather set it up themselves and hand your own configuration back when the rung ends.

Flying a drill

• The drill card states the task and the pass mark. A target pointer shows where the objective is: a ring over it when it is on screen, an arrow at the edge of the picture when it is not, with the range and, when it matters, how far up or down it is.
• Gate drills use numbered gates; only the next gate is lit green, and each pass gives a chime and a split time. On speed-type drills the clock starts when you first move.
• R restarts the drill on a fresh, fully charged airframe.
• When a drill ends, the result card shows the score out of 100, whether it is a new personal best (and by how much), the time and the splits, with Next (Enter), ↻ Retry (R), Ladder and Menu.
• Passed drills, scores and badges are recorded; Achievements at the bottom of the Academy page lists the 14 badges and which you have earned. Training progress per ladder also appears in Stats & records (section 12).

6Quick Flight and the training ranges

QUICK FLIGHT is the fastest way into the air: pick a place and fly it — no briefing, nothing keeping score. It lists six prebuilt ranges first and then twelve photoreal cities. Click a card to fly.

Ranges

Ranges are complete 3D sites built into the application: they are not streamed, open in seconds and are downloaded once. Each loads behind a curtain that names the place and the stage it is in; the aircraft is then seated on its pad.

The world around a range extends to 40 km, so there is room for long transits. At the Oil Rig the sea is water: an aircraft that goes into it ditches — it sinks and the video feed is lost.

Cities

Twelve photoreal cities, each with a one-line description of what the air there is like: San Francisco, New York, London, Paris, Barcelona, Valencia, Tokyo, Shanghai, Istanbul, Cairo, São Paulo and Mexico City. The city streams in around you from the map-tile service; it needs a network connection. For any other place on Earth use Open World (section 8).

The Range: RACES, WEATHER and FILM

The Range is an instrumented blockout site built for training — aqueduct arches, a cut-and-cover trench with tunnels, clover ramps with a bridge spine, an acropolis with a temple, an altitude pole and a TV gantry. In flight it shows three chips at the top of the screen:

Range races

• Race vs AI — pick a course, choose 0 to 3 AI opponents and press RACE VS AI. Freestyle stays on until you start. The AI drones are ORLIK, KESTREL and VYPER. Their lines are computed from a shared seed, so every pilot in a room sees the same bots without extra network traffic.
• Race other pilots — the other pilots must be at The Range too. Choose the number of laps (the course standard, or 1, 2, 3 or 5) and press OPEN A ROOM RACE; other pilots at The Range see the lobby and press JOIN; the host presses GO and everyone gets the same countdown, with shared standings at the finish.
• R takes you back to the last gate you passed; Esc leaves the race; Enter on the finish card races again.

7Missions

MISSIONS is the scored combat module: 17 scenarios at 15 real locations, flown on five airframe types (about 102 minutes of flying in total). Each mission deploys to its real location, gives you the airframe it was written for and runs live objectives with a debrief.

The catalogue

The filter row shows ALL, FPV, ISR, DEEP STRIKE, BOMBER and INTERCEPTOR with the number of missions in each. Each card shows the airframe, the location, the mission type and its length, and a short situation.

Deploying and difficulty

DEPLOY opens the briefing: the situation, the objectives, a tactical map, and the choice of difficulty tier.

The tier also sets how accurately the enemy shoots (half, nominal or double the standard value) and the number of airframes you are given, which is derived from what the mission demands. A mission ends when its objectives are complete, when the clock runs out, or when you have lost your last airframe; the debrief then shows the result.

8Open World

Open World flies anywhere on Earth over photoreal 3D terrain and buildings streamed from the map-tile service. It opens on a location picker.

Saving an area for offline use

Under the location cards an area can be saved to a portable .stratiles file and into the browser's offline cache. Choose the quality — the lowest altitude at which the area stays sharp: Quick (≥ 400 m), Standard (≥ 150 m), High (≥ 60 m) or Ultra (≥ 20 m) — and the radius (1, 2, 5 or 10 km; each shows an estimated download size, which grows steeply with radius and quality), then press ⤓ Download. 📦 EXPORT and 📂 IMPORT move cached tiles between computers as a .stratiles file.

Ground control station (Puma / Raven)

🛰 GCS (Puma/Raven) opens a full-screen ground-control-station console for commanding an aircraft by points and modes rather than flying it on the sticks. Like the other floating screen buttons, the GCS button fades out while the interface is idle; move the mouse to bring it back. It is a training-representative console, not the manufacturer's software (the console says so in its bottom bar). If no world is loaded, it loads the last location first; the Puma 3 AE is the default airframe and starts on deck, ready for a hand launch.

The data-link quality falls towards the edge of the airframe's range and drops when terrain blocks the line of sight between the ground station and the aircraft. Closing the console leaves the aircraft on its last command. If you chose to fly by hand (MANUAL), the console does not open by itself; the GCS button still opens it on purpose.

9Multi Pilot and the coach

Several pilots can fly in one shared session. There are two ways in: a team mission from Multi Pilot on the main menu, and a shared world from Open World (the MULTI PILOT toggle or 🌐 Worlds). Pilots at The Range are also in one shared room and can race each other (section 6).

Team missions

1. 1 · Mission — pick one of the missions published by coaches. Each card shows who published it, when, and the seats it needs (for example 1 FPV · 1 ISR).
2. 2 · Seat — pick a free seat. The room shows the roles as desks: COACH, COMMANDER, NAVIGATOR, FPV PILOT, ISR PILOT, OPERATOR, ANALYST and OBSERVER.
3. Enter your callsign, read the Briefing, then press DEPLOY.

In a team session every member sees the same world and the same units. One client runs the AI for the whole room and the others mirror it; the coach sees the units where the pilots see them. Peer aircraft are marked with their callsign and range.

Shared worlds

In Open World, MULTI PILOT or 🌐 Worlds opens World Select: public worlds at real locations and private scenes that are joined by code. Everyone in a world sees the same objects — units placed, routes drawn, markers, the weather and the time of day. Pilots in different worlds do not see each other.

The coach's tools

A coach in a shared world gets a coach bar at the top of the screen:

For a coach who is not flying, Esc closes only the top panel; a further Esc opens the pause menu, whose Return to main menu is the one way out of the room — the coach is not thrown out of the exercise by a stray key.

The Instructor console (search "instructor" with Ctrl+K) lists the trainees in a shared session with POV to watch a trainee's view and Take to request control of the trainee's aircraft. While you hold it, a banner reads YOU HAVE … CONTROLS with Release to hand it back.

Sides, fire and team chat

• In a world room and at The Range the pause menu has a YOUR SIDE row — BLUFOR, OPFOR or NONE: a pilot can fly for the enemy. The AI enemy does not attack OPFOR pilots, and rams and strikes between the sides are scored. Leaving the room drops the side; the picker is off during team missions.
• Enemy fire starts at SAFE lethality (Settings › SIMULATION › OPFOR lethality); a room keeps its lethality when the host changes.
• Team chat (open it from the command palette) delivers messages to everyone in the session, with read receipts.

10Track Designer

Track Designer (main menu, left column — Draw a course, fly it, share it) is a studio for building a gated race or agility course, flying it with the same flight model as the rest of the simulator, and exchanging it as a file. Courses you build here are also flown as Racing Drills in the Flight Academy (section 5).

The studio

Building a course

1. Pick Start / finish (S) and click the field to place it. Every course begins with one.
2. Pick an obstacle and click to place it. While a placement tool is armed, the palette shows what you are placing and how to stop — Select / stop placing, V or Esc.
3. Drag an obstacle to move it, Shift-drag to turn it; Alt bypasses the snap. Gates can also be positioned by typing values in the inspector.
4. The gates are numbered in placement order. To set a different order, pick Path — click gates in order (P), click the counted obstacles in the order they are flown, then Set the line.
5. Check CHECKPOINTS and PREFLIGHT, then press SAVE & FLY.

Flying it

SAVE & FLY opens the PRE-FLIGHT sheet with two lists:

• MAP — ARCADE — your map, no tiles, instant (the default: your field at 1:1, nothing to download), Open water — flat (Baltic), or one of the racing cities, which streams the photoreal city around the course.
• FRAME — the race quads only: multirotors with 5″, 8″ or 10″ props, each with its top speed. Fixed-wings, VTOLs, ground vehicles and ISR aircraft are not offered.

FLY IT starts the run; Back returns to the studio. The frame and the map you chose are remembered. A saved course is listed under SAVED and in the racing menu.

Sharing a course

⤓ Export .json downloads the open course as a .stratos-track.json file; ⤒ Import .json loads one back. An import is checked before it replaces anything, so a bad file does not destroy the course that is open. A design exported from the open-source TrackDraw editor is recognised, but the designer's import does not open it as an editable course — the message says so.

11StratGIS — imported areas and 3D content

StratGIS brings your own terrain and 3D content into the simulator: photogrammetry meshes, imported models and areas built from OpenStreetMap footprints. It opens on a panel on the left and a work view on the right.

12Flight Recordings, after-action review and your records

Flight Recordings

Flight Recordings on the main menu lists your saved flights. Every sortie is saved here automatically when it ends — arm and fly, nothing else to press. The list shows for each flight: When, Map / mission, Airframe, Duration, Distance, Outcome, Hits and Score.

Click a flight to open its details — the hits it scored — and its actions:

Recordings are stored in the browser on the computer that flew them.

Stats & records

The profile button at the top right of the main menu (Stats & records) opens Pilot Progress, the pilot's record. It fills in automatically as you fly: every sortie is logged with mission, drone, duration, sensors, VTX, battery, EW exposure and score.

13Airframe and loadout configuration

The configurator is where a sortie is built. Open it with CONFIGURE under the airframe carousel on the main menu, with X while disarmed on the pad, or from the pause menu in flight. CONTINUE (or Esc) returns to the flight.

Header

Sections

The airframe catalogue

The airframe catalogue that the configurator draws from contains, on this build, the airframes below (grouped here by role; the configurator's own class list filters them). Mass and top speed are the values the simulator uses.

Further airframes are registered by the modules that use them and appear in the type ratings of Pilot Progress (section 12) — for example the fibre-optic FPV-PJ Fibre 8" flown in several missions, Bayraktar TB2, Shahed-136, Gerbera and the THeMIS ground robots (Combat, CASEVAC, Carrier).

14Weapons employment and terminal guidance

Arming, release and detonation

The warhead is inert until you arm it. B arms it and B again makes it safe. A strike airframe that hits its target with the warhead safe is a dud: nothing detonates. Arm deliberately, before the terminal dive, the way you would on a real sortie.

Damage depends on where and how the round hits: the model separates the faces of a vehicle, so the aspect you attack from and the fuze you chose change the result. The Munitions · Explosives & effects reference in the Flight Academy lists every round the loadout can carry, what it defeats on each face of each vehicle and where to put it — read it before choosing a payload.

Terminal guidance

Strike airframes carry a terminal-guidance seeker. It is operated in three steps:

1. Lock — L acquires the best target inside the seeker's field of view, or releases the lock.
2. Engage — E hands the aircraft to the guidance. Locking alone does not fly the aircraft; engaging does. While engaged, your stick moves the aim point on the target rather than the aircraft, and the offset you set is held.
3. Commit or abort — K commits to or aborts the terminal attack while a target is locked or guidance is engaged.

The seeker read-out is off by default. Switch it on in the configurator (SEEKER / TERMINAL GUIDANCE READ-OUT, section 13) to draw the banner, the target box, range, closing speed, time to impact, miss distance, line of sight and lock quality on the FPV picture, and optionally a ×4 zoom inset of the locked target. Terminal guidance works the same with the read-out off.

15Sensors: camera, thermal, night vision and ISR

On-screen display (OSD)

The flight picture carries an OSD. 1 cycles its style (vector → analog → minimal → off), 2 selects the analog, Betaflight-style OSD and 3 the minimal OSD. The layout of the analog OSD can be edited element by element in Settings (section 17). ISR airframes use their own sensor OSD.

16Signal, electronic warfare and the fibre-optic link

The radio link and analogue video

With the signal simulation on (O toggles it), the control and video links are modelled: range, obstruction by terrain and buildings, and jamming degrade the link, and the analogue video picture breaks up the way a 5.8 GHz analogue feed does — noise, sparkles, tearing, colour loss and roll. Your own choices change it:

The look of the analogue picture is adjustable in Settings › signal, with a live preview and saveable presets. The video-transmitter channel table (bands and channels) is part of the loadout configurator.

Fibre-optic control

In the loadout configurator (section 13) an airframe can be fitted with a fibre-optic spool: tick Fiber optics and choose the cable length (5, 10, 15 or 20 km). With fibre fitted:

• the link cannot be jammed and the aircraft emits no video-transmitter signal;
• the spool adds weight, and the aircraft gets lighter as cable pays out;
• the cable is laid on the ground behind the aircraft and is drawn in the world;
• the cable can break — when the spool runs out, when flying too fast, in hard reversals of direction, or when skimming very low and fast. A cut ends the link.

The choice is saved with the loadout, so it stays on in later sessions until you untick it. The FPV-PJ Fibre 8" airframe always flies on fibre.

17Settings

Settings (main menu, or the pause menu in flight) is organised in tabs: CONTROLS, KEYBINDS, BEHAVIOUR, SIMULATION, DISPLAY, SENSITIVITY, AUDIO, GRAPHICS, SIGNAL and OSD.

Profiles

At the top right, PROFILE shows the active settings profile. Choose another profile from the list, create one with ＋ New profile…, save the current values into the selected profile or delete it. Several trainees can therefore keep their own settings on one computer.

The tabs

Resetting

At the bottom of the screen, ↻ RESET CURRENT TAB restores the defaults of the tab you are on and ↻ RESET ALL restores everything. ADVANCED shows additional settings. The build number is printed at the bottom right.

18Languages

The language picker at the top right of the main menu (EN ▾) switches the interface while the application is running. It offers English, Polski, Deutsch, Nederlands, Українська and Lietuvių. The choice is remembered on this computer.

This document is available in English and Polish; the link at the top of the contents list switches between them.

19Licence, delivery and your data

20Troubleshooting

21Glossary