FDP Chrono

Your maximum FDP and minimum rest on a 24-hour dial, under EASA, UK CAA, FAA, Transport Canada and CASA rules. Choose Reporting or Planned block-in and drag the gold handle: see when your FDP must end, your margin or excess, and when you can report again.

For pilots and cabin crew: choose your role at first launch and change it any time in Settings.

THE 24-HOUR DIAL
• The gold handle snaps to the quarter hour; the white knob sets the exact minute.
• Cyan arc: planned duty. Gold arc: margin. Red arc: excess.
• Standby, delayed reporting and split duty times appear as colored rings on the dial; minimum rest on an outer green ring.
• Result: FDP end time, maximum FDP, margin or excess, minimum rest and earliest next reporting time.

REGULATIONS
• EASA: ORO.FTL.205 and ORO.FTL.235, CS FTL.1
• UK CAA: UK ORO.FTL.205 and ORO.FTL.235
• FAA: 14 CFR Part 117 (Part 121 flight crew); flight attendants § 121.467 and § 135.273
• Transport Canada: CAR 700.28 and following, 703, 704 and 705 operations (excluding medical evacuation)
• CASA (Australia): CAO 48.1, Appendix 2, multi-pilot operations, including augmented crew
Sectors, modes and modules follow the selected regulation. For 80 other countries, the app links to the national authority and lets you enter the limit from your OM with "OM · manual".

CABIN CREW
• EASA and UK: reporting up to 1 hour before the flight crew (ORO.FTL.205(c)) and cabin crew in-flight rest (CS FTL.1.205(c)(3)).
• FAA: flight attendant duty and rest limits (§ 121.467, § 135.273), or Part 117 if your operator applies it.
• Canada and Australia have no cabin crew limits of their own: the app uses the flight crew limits and tells you so.

MODULES
• Standby and reserve: EASA, UK, FAA, Canada and Australia
• Delayed reporting: EASA, UK, Canada and Australia
• Split duty: EASA, UK, FAA, Canada and Australia
• Augmented crew with in-flight rest: EASA, UK, FAA, Canada and Australia
• Planned extension: EASA and UK
• Night duty and WOCL: EASA, UK and FAA
• Minimum rest for all five, at home base and away; time zone differences for EASA, UK, FAA and Canada

YOUR OM: "OM · MANUAL"
Build a profile on your operator's operations manual (OM).
• Choose a base (EASA, UK, FAA, Canada or Australia) or just a fixed limit.
• "Customise" changes the values of the base: whole FDP tables or cell by cell, extensions, standby and reserve, delayed reporting, split duty, night and WOCL, rest.
• Under each changed value you see the base value. If yours is less restrictive, it turns orange: "Valid only if approved by your authority."
• The result tells you which of your OM values decided today's limit.

iPAD
Dial and full result on the left, duty and modules on the right.

34 LANGUAGES
Interface in 34 languages.

PRIVACY
No account and no data collected. The app works offline: your last duty and your OM profile are saved only on your device.

ONE PURCHASE
No subscription, no in-app purchases, no ads.

WHAT IT DOES NOT DO
FDP Chrono calculates one duty at a time from the data you enter. It does not check cumulative limits or your roster history, does not apply commander's discretion, unforeseen-circumstance extensions or FRM/FRMS schemes, and does not work out acclimatization for you: you choose it. It applies commercial air transport (CAT) rules. The full list is under "Rules not calculated" in the app.

IMPORTANT
FDP Chrono is a planning aid: it does not replace your operator's operations manual, FRM or the authority's rules, which always remain the reference. Not affiliated with EASA, the UK CAA, the FAA, Transport Canada or CASA.

By downloading this app, you agree to Apple's standard Terms of Use (EULA):
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/