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User guide

Hangar is your digital aircraft logbook: transmitter settings, batteries, centre of gravity, gyro, photos and flight log – enter everything at home, look it up on your phone at the flying field.

1. Getting started

Create an account – with the invitation code or link from the operator (see Account).
Add your transmitter – the first time you log in, Hangar asks for your transmitter (brand + model).
Add your batteries – under Batteries, ideally each battery separately (e.g. “3S 2200 #1”, “#2”).
Add a plane – under Planes → + New: CG, batteries, switches, rates …
At the field – open Hangar on your phone, tap the plane, and everything important is on one page.

2. Account & app

Sign up

On the start page, choose Sign up. You need an invitation code from the operator – with the invitation link it is already filled in. Choose any username (your email address works too); password at least 8 characters.

Requesting access

No invitation code yet? On the login or sign-up page, tick I am human (a quick check in your browser – no Google, no cookies) and then tap Show email address – this shows you the operator’s contact address. This protects the address from spam bots. The sign-up form also requires this check.

Log in

With Stay logged in you won’t have to log in again on that device for 180 days.

Language

Hangar appears in German or English depending on your browser language. Use the DE/EN buttons at the top (also on the login page) to switch at any time. Your choice is remembered on this device; battery warning emails arrive in the language you last used.

As an app on your phone

iPhone/iPad: Open in Safari → Share (square with arrow) → Add to Home Screen.
Android: Open in Chrome → menu ⋮ → Add to Home screen.

Hangar then starts full-screen like an app. At the flying field without reception: see No reception.

3. Transmitters

Under Transmitters you add your radios – you can have as many as you like.

Tap the brand (Spektrum, FrSky, RadioMaster, Jumper, Futaba, Graupner, Jeti, Multiplex, FlySky, Radiolink or Other).
Enter the model – suggestions appear as you type (e.g. DX9, TX16S, T16IZ).
The switch template is loaded automatically (e.g. Spektrum A–H, I · EdgeTX SA–SH). Adjust it if you have swapped switches – one switch per line.

The templates are suggestions. Check the names on your transmitter.

4. Batteries

Adding batteries

Batteries → + New: cells, capacity, C rating, connector, weight, charge cycles, photo. You can type units like “mAh” or “g” – they are removed automatically. If you have several identical batteries, enter the number under Number of identical batteries to create – Hangar creates them individually, each with its own number (#1, #2 …), so cycles and charge state are correct per battery. Buying another one later? On the battery page, use Create identical battery again.

Battery number & QR label

Every battery automatically gets a number (#1, #2 …) – that’s how you tell identical batteries apart. Under Batteries → QR labels you print labels with the number and a QR code. Scanning it with your phone camera opens the battery page directly – enter the voltage right there. Everything about printing, positioning on the A4 sheet and laser engraving is under QR labels & plaques.

The QR code opens in the browser (Safari/Chrome). You need to be logged in there once – with “Stay logged in” it stays that way.

Recording the charge state

Open the battery → Charge state at the top:

Quick buttons Full 4.20 (automatically counts +1 charge cycle), Storage 3.80, Empty 3.60 – or type your own voltage per cell.
Date/time is prefilled but can be adjusted (e.g. charged yesterday).
Save voltage – the state appears in the battery list and on the plane, e.g. “Full · 4.20 V · for 2 days”.

Full ≥ 4.10 V Partly charged Storage voltage 3.70–3.90 V Discharged Over-discharged < 3.30 V

Filter batteries by state

In the battery list next to the search field: choose Full, Partly charged, Storage voltage, Discharged, Faulty etc. – the number in brackets shows how many. This way you see all full batteries at a glance before a flying day. Full for too long (warning) shows the batteries that should be brought to storage voltage; Show in the red warning does the same. Search and selection can be combined.

Warning for incorrect storage

If a battery sits above 3.80 V/cell for more than 48 hours, it is marked ⚠︎ red Once a day you get an email summary listing all affected batteries (with number, voltage and since when) – by default from 08:00. As soon as you record a new voltage for a battery (e.g. Storage 3.80), it drops off the list. You set the threshold, hours and time under Settings. Tip: with a threshold of 3.85 V Hangar only warns above storage voltage.

Under Settings → Battery warnings you can also turn on two more notices (both off by default):

Discharged for too long – a battery below 3.70 V/cell has been lying for more than 48 hours (adjustable). Repeats daily until you record a new voltage.
Storage reminder – a battery has been at storage voltage for 10 weeks (adjustable) with no new reading: time to check it. Record the measured voltage and the period starts again; otherwise the reminder comes again after another 10 weeks.

All notices go into the same daily e-mail – you never get more than one mail a day.

Defective & history

Under Data → Status you can set a battery to Defective or Disposed (with a reason, e.g. “puffed”). Every measurement, status change and cycle correction is listed in the History at the bottom of the battery page. Tip: set batteries to “Disposed” rather than deleting them – that way their history is kept.

5. Adding a plane

Planes → + New (or Edit on an existing plane). Only the name is required; you can fill in everything else bit by bit. At the end, tap Save at the bottom.

General: Name, category, manufacturer, wingspan, weight, cover photo.
Centre of gravity: CG in mm and Measured from (pick a suggestion or type your own, e.g. “leading edge of lower wing”). Upload a photo and tap the image to mark the CG.
Batteries: + Assign battery: flight time, timer in the transmitter, position in the fuselage and a photo of the battery position. Mark one battery as Default.
Transmitter: Choose the transmitter, model memory, name in the transmitter, receiver (with suggestions). Insert switch template creates the switch rows – for each position (Pos 0/1/2), enter what happens. Empty switches are hidden in the view. Under Rates/Expo, enter the values in % for aileron, elevator and rudder per switch position.
Gyro: System (e.g. AS3X, SAFE), gain switch and roll/pitch/yaw/heading in % per flight mode.
Checklist: One item per line – to tick off at the field.
Tech: Motor, ESC, propeller, servos, notes. Under Condition you record whether the model is airworthy, its maiden flight is pending, it is under construction or crashed – shown as a coloured label in the list and on the plane. At the top of the plane list you pick the condition; it opens showing the airworthy models, All conditions shows everything. Under Status you can archive sold or dismantled models.

Duplicate (at the bottom of the plane page) copies a plane with all its settings – handy for similar models.

6. At the flying field

Tap a plane – at the top is the jump bar (CG, batteries, transmitter, gyro, gallery, flight log).
Tapping images opens them full-screen (CG mark and battery position clearly visible).
Tick off the checklist; reset it for the next flight.
Log a flight (+ Log flight): choose the battery, enter the flight time as 6:30 or 6.5, and increase the count for several identical flights. Hangar uses this to calculate average and max flight time per battery and the Statistics. The battery list shows the number and current charge state (e.g. “#3 Gens Ace 3S 2200 · Full 4.20 V”) – so you can tell identical batteries apart without renaming them. It lists the batteries assigned to the plane.
Fastest via QR code: if there’s a flight log label on the plane or in the case, scanning it with your phone camera opens the flight log with the form directly – type in the flight time, save, done.

No reception (offline)

Save beforehand: at home (with a connection) tap Save for offline at the bottom of Planes. This stores all your active planes (CG, batteries, transmitter, gyro, checklist, flight log), batteries and transmitters on your phone. Pages you open are also saved automatically.
Without a network an orange note Saved version from … appears at the top – you see the last loaded state.
Logging a flight and recording a battery voltage also work offline: the entry is stored on the phone (marked waiting) and sent automatically once you are back online – at the latest the next time you open Hangar. No duplicate entries are created.
Not possible offline: uploading photos/videos, editing planes, statistics, PDF, labels.
iPhone: reliable only when Hangar is installed via Add to Home Screen (see Account & app). In a normal Safari tab iOS may delete stored data after a few days.
Logging out deletes the saved pages from the device. Entries not yet sent are kept and sent after you next log in with the same account.

7. Gallery (photos & videos)

Plane → Gallery → + Photos / videos: choose from your library or shoot directly, several at once if you like.
Large videos are uploaded in chunks (progress bar) – keep the page open in the meantime.
Tap = full-screen; swipe or use the arrows to browse. There you’ll find Set as cover or Delete.
All pictures at a glance: the Gallery item in the bottom bar. Every picture of every plane – cover photo, CG photo, battery position photos (small label Cover photo, CG, Battery) and the gallery photos/videos –, ordered by plane (most recently changed first); the plane name is shown on each picture. At the top choose Mine, another hangar or All as on the planes page, below that a specific plane and Photos or Videos. In full-screen you browse through all pictures; the plane name at the bottom takes you straight to the plane. Delete appears on every picture of your own planes – including cover, CG and battery photos; Set as cover on your gallery photos. Pictures of other pilots have no buttons.

iPhone videos play in Safari (iPhone, iPad, Mac). On Windows they may not play in Chrome/Edge – fix: iPhone → Settings → Camera → Formats → “Most Compatible”.

8. QR labels & plaques

There are two kinds of labels:

Battery label (Batteries → QR labels): scanning it opens the battery page so you can record the voltage.
Flight log label (Planes → QR labels, or Print label at the bottom of the plane page): scanning it opens the flight log with the form for a new flight.

At the top of the labels page you switch between Batteries and Planes. Then:

Tick the batteries or planes, choose the size: your own layout to cut out (38 × 19, 50 × 25 or 70 × 35 mm) or a pre-cut Avery Zweckform J4773 sheet (63.5 × 33.9 mm, 24 per sheet, weatherproof) – the labels then sit exactly on the pre-cut fields and, if needed, several labels per battery/plane (e.g. one for the case).
Print pilot details: UAS operator number, name and phone – each can be switched on or off individually (enter them once under Settings).
Position on the A4 sheet: in the mini preview, tap the fields that should stay empty – this way you can use up partly used label sheets. The labels fill the remaining fields in order, across several pages if needed.
Show labels → Print / save as PDF. In the print dialog, choose “Actual size” or Scale 100 % and margins “None”.

Laser engraving

⚡ SVG for laser downloads the whole sheet as a vector file in millimetres (1:1): black = engrave (QR code and text), red = cut contour. If your laser software doesn’t take over the font cleanly, use “Convert text to paths” there. For metal plaques, choose at least the 50 × 25 mm size so the QR code stays reliably readable.

What has to be on the model?

The only requirement is the UAS operator number (e.g. CHE… or DEU…), clearly visible. EU rules no longer require a fireproof plaque. The three secret characters after the hyphen must never go on the model – Hangar removes them automatically. Name and phone are optional, but they help if someone finds your model.

Plaque service

No laser, no vinyl? At the bottom of the labels page, use Request a plaque: the contact form takes over your selection (planes/batteries, size, pilot details). Options include fireproof plaques in stainless steel or anodised aluminium, other materials or plotted vinyl – at cost price (material and shipping).

9. Statistics

📊 Statistics at the top of the plane or battery list. At the top you choose Planes or Batteries and the period (12 months, This year, All time).

Planes: Flights, flight time, average flight duration and flying days; most-flown plane and longest flight; flights per month; per plane: flights, flight time, average, maximum, last flight and most-used battery.
Batteries: Batteries in service, battery flights and charge cycles; most-used battery and unused batteries; per battery: flights, flight time, cycles, last flown and most-used plane.
Storage: One bar per battery showing how long it sat full, partly charged, at storage voltage or discharged – plus the longest continuous time full. Ideally you see lots of green (storage voltage).

If several planes or batteries have the same number of flights, “Flown most” and “Used most” show all of them – the ones with the longer flight time first (flight time in brackets).

The statistics are only as good as your entries: flights without a flight time count towards the number of flights, not the average. Storage times are derived from the recorded voltages – so record the voltage after charging and after flying each time.

10. Viewing other hangars

At the top of the plane list you choose: Mine, another user’s hangar, or All. You can only view other people’s planes – only the owner can edit, delete, log flights or upload pictures. With Copy to my hangar you take one over as a template (transmitter data, CG, photos – you assign your own batteries).

Don’t want others to see your hangar? Settings → untick Other users may view my hangar.

11. PDF data sheet

One plane: very bottom of the plane page → PDF data sheet.
All planes: very bottom of the plane list (Mine) → All as PDF.

It includes the cover photo, CG with CG photo, batteries with position photo, transmitter/switches/rates, gyro, checklist and a flight log summary – without the gallery. On iPhone: the PDF opens in Safari → Share → Save to Files or print.

12. Settings

My hangar: Visibility for other users on/off.
Battery warnings: Email address, warning threshold (V/cell), hours and the time of the daily summary; use Send test email to check that emails arrive (check your spam folder too).
Pilot details: Name, phone and UAS operator number for the QR labels – enter only the public part of the operator number.
Change login: Change username and password. Other devices then have to log in again.
Log out: At the very bottom.

13. Legal & contact

At the very bottom of every page you’ll find the Terms of use, the Privacy policy, the Legal notice and the Contact form. When you first log in (and after changes), you accept the terms of use once.

Use is free of charge and at your own risk – all information without guarantee; check everything yourself before every flight.
Your planes, photos and videos are visible to all registered users (can be switched off) and can be copied by them.
The operator uses your data only to run Hangar – no advertising, no tracking.

Questions, ideas or bugs? Use Contact (at the bottom of every page) – you’ll get a reply by email.

14. Tips & FAQ

Forgot your password?: Ask the operator of the hangar – they can set a new password.
Sign-up doesn’t work?: Check the invitation code (upper/lower case doesn’t matter). If registration is closed, ask the operator.
Forgot to save?: While editing, Hangar warns you if you leave the page with unsaved changes.
Positions 0/1/2?: These are the switch positions as your transmitter names them (on EdgeTX ↑ / – / ↓).
Is my data shared?: Only with logged-in users of this hangar – and only if your hangar is visible. Others can’t change anything in your data, but they can copy planes into their own hangar.
QR code opens the login page?: Log in once in your phone’s browser with “Stay logged in” – after that, scanning takes you straight to the battery or the flight log.
Offline entry stuck on “waiting”?: Once you have a network again, tap Send now at the top. If it says “please sign in”, log in again – the entries are kept.
Labels printed too big or too small?: In the print dialog, choose “Actual size” or Scale 100 %, not “Fit to page”.

Hangar 1.22.0 · back to top