Pilot Fuel Endurance icon

Pilot Fuel Endurancev1.1.0

Released September 4, 2026Major

iOS

What changed

  • PlatformAdded native support and optimized two-column layout for iPad and iPad Mini
  • New featureAdded permanent display for U.S. Army 20-minute fuel reserve results
  • UXModified timer to count upward and continue past the planned test duration
  • UXImplemented immediate and periodic vibration reminders when test period is exceeded
  • PerformanceImproved burn-rate calculation accuracy using actual elapsed test time
  • New featureAdded automatic fuel inventory updates across main and external tanks when continuing
  • UXIntroduced local time controls, custom UTC offsets, and 12/24-hour format toggles
  • UXEnhanced fuel-reading validation with support for thousands separators and error messaging
  • PerformanceImplemented persistent monitoring sessions that remain active if the app is closed
  • ComplianceUpdated FAA reserve information to clarify regulatory compliance status

Original release notes

This update improves fuel monitoring, timing accuracy, reserve awareness, and support for larger Apple devices.

• iPad Mini and iPad support
Pilot Fuel Calc is now optimized for iPad, with a responsive two-column layout that makes better use of the larger display. Portrait and landscape orientations are supported.

• New U.S. Army 20-minute reserve
A U.S. ARMY RESERVE · 20 MIN result is now always displayed in the fuel-test results, regardless of whether Fixed Wing or Rotorcraft is selected.

• Timer now counts up
The burn-rate timer starts at 00:00 and counts upward, making the actual test duration easy to see.

• Timer continues after the selected test period
The timer no longer stops automatically when the planned test duration is reached. The display glows red and the device vibrates, but the timer continues until the pilot can safely tap STOP.

• Improved vibration reminders
When the selected test period is exceeded, the app vibrates immediately and continues providing periodic reminders until the test is stopped.

• More accurate burn-rate calculations
Burn rate is now calculated using the actual elapsed test time. If the pilot stops later than planned, the resulting burn rate remains accurate.

• Automatic fuel updates when continuing
Tapping CONTINUE automatically updates the total fuel onboard using the latest fuel reading. Burned fuel is deducted from the main tank first, followed by external tank 1 and external tank 2.

• Local time and time-zone controls
Pilots can use the device’s time zone or set a custom UTC offset. All clock times are marked with “L” for local time.

• 12-hour and 24-hour formats
A new toggle allows pilots to choose their preferred clock format. Flames-out ETA follows the selected format and time zone.

• Improved fuel-reading validation
The app now accepts common number formats, including values with thousands separators. Clear messages explain invalid readings instead of silently disabling the calculation button.

• Persistent monitoring sessions
An active timer remains active if the app is closed and reopened. If the planned duration has passed, the app returns to the overdue alert state without ending the test.

• Updated FAA reserve information
Reserve displays have been clarified as final-reserve endurance checks rather than complete regulatory compliance checks.

• General reliability and compatibility improvements
In…

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