Editing Hobbs, Tach & Cycles

What Are Hobbs, Tach, and Cycles?

• Hobbs time — engine-on time tracked in decimal hours (e.g. 1,234.5 hrs). Used for scheduling maintenance and calculating operating costs.
• Tach time — engine RPM-based time. Increases slower than Hobbs at low power settings. Used for 100-Hour and TBO tracking on some aircraft.
• Cycles (landings) — total number of takeoff/landing cycles. Important for tracking landing gear wear, tire life, and pressurization cycles on certain airframes.

Editing Current Hours

You can correct or update these values at any time (Owner/Admin only):

1. Open the aircraft and go to the Details tab.
2. Click Edit Hours.
3. Enter the corrected values for Hobbs, Tach, and/or Cycles.
4. Click Save.

Changing these values will recalculate inspection due-dates based on the new totals.

How Hours Update Automatically

When you log a flight, Aloft360 adds the elapsed Hobbs and tach time to the aircraft totals automatically. You do not need to manually update hours after logging a flight.

For check-in / check-out via the Professional module, Hobbs and tach are captured at departure and return, and the difference is added to the aircraft total.

Correcting a Past Log Entry

If a flight was logged with incorrect Hobbs or tach values:

1. Open the aircraft → Flights tab.
2. Click on the flight entry you need to correct.
3. Click Edit Flight.
4. Update the Hobbs/Tach start and end values.
5. Click Save.

The aircraft totals will recalculate automatically.

Tach vs. Hobbs — Which to Use?

Use whichever your maintenance organization uses for tracking. If your annual and 100-Hour are tracked in tach hours, log tach. If your mechanic uses Hobbs, log Hobbs. You can log both simultaneously.