AutoLog: The Technical Deep Dive
For those seeking the full breakdown of how the CloudBaseGA AutoLog works, this is the place to be. Let’s unpack the tech, the logic, and the precision behind every logged flight.
The AutoLog records five distinct times per flight, with Times 2-5 being most relevant to CloudBaseGA users.
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Time 5: The AutoLog uses this as the "brakes-on" time, as the power-off time is typically close enough for most operators.
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The AutoLog is powered by its onboard battery once the aircraft's electrical power is disconnected. Recorded times are then uploaded to CloudBaseGA servers via cellular network.
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A flight record is uploaded only after a flight is registered (i.e., the threshold speed is reached). Confirmation from the AutoLog signals completion, powering down the unit until the next power-on event.
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Note: No communication occurs during flight, and flight records are uploaded only after aircraft shutdown.
1. Installation
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Mount using the quick-release plate.
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Connect the antenna and power — no EASA Form 1 needed.
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Click here for our Installation Guide
2. Flight Detection
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The AutoLog automatically detects flight phases based on speed thresholds and movement.
3. Data Upload
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Flight records are uploaded after shutdown via mobile networks.
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A flight record is only uploaded if a flight has been registered (threshold speed achieved at least once).
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The AutoLog will only power off once a confirmation message is received, ensuring no data is lost.
4. (Optional) API Integration
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The CloudBaseGA API allows third-party fleet management software to access AutoLog data.
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Available data includes brakes times, flight times, and shutdown locations.
✅ Compliance
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CS-STAN Issue 4 Subpart B allows for aircraft tracking systems under 300g (like AutoLog) to be installed in ELA1 and ELA2 aircraft (<2000kg, non-complex) without an EASA Form 1.
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The AutoLog complies fully with CS-SC061a.
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AutoLog fits within the scope of devices covered under FAA Advisory Circular AC 120-76E on Electronic Flight Bags, as it operates as a passive, non-transmitting device during flight.
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AutoLog uses components and frequencies comparable to standard personal electronic devices, making it compliant with existing operational guidelines for such equipment.
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For installations, FAA AC 43.13-2B provides acceptable methods and practices, especially around avionics and antenna installations in non-pressurized aircraft under 12,500 lbs, which can apply when the AutoLog setup requires any physical installation (recommended).
⏳ Time Tracking Overview
Aircraft owners and operators track three main types of time. These times, like layers of an onion, encompass one another in the following order:
01 Flight Time
This is the total time the aircraft spends airborne. The CloudBaseGA AutoLog records flight time once speed reaches a certain threshold. For more complex aircraft, this is typically measured with a timer linked to weight-on-wheels switches. For most light aircraft, flight time is used for maintenance hours and accurate record-keeping.
02 Block Time
Block time is the interval from when the aircraft moves "off-blocks" to when it parks "on-blocks." This time is commonly used by flying schools and groups for invoicing, and pilots typically log this time in their personal logbooks.
03 Engine Time
This refers to the time the engine is running, usually tracked with an oil pressure-activated Hobbs switch. While most owners care more about flight time for engine maintenance, there are exceptions. If desired, engine time can be recorded with the AutoLog, configured during setup.
❓Need to Know More?
For more information on installation or to see AutoLog in action, head to our installation guide for more information or contact us.