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PDRA 05 | Long-range BVLOS without observers

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  PDRA 05 has been created in response to the high demand for UAS flights in BVLOS conditions, without observers and without the need for TSA, with larger drones and at greater distances.

PDRA 05 Characteristics


The requirements for flight within this scenario are as follows:


  • Aircraft up to 3 meters in size and a maximum kinetic energy of 34 kJ.
  • Flight in sparsely populated areas
  • Maximum flight geography height of 110 meters
  • Flight in BVLOS conditions within the control range of the C2 Link.
  • In uncontrolled airspace and also with a low probability of encountering manned aircraft with the ability to detect at least 50% of the aircraft by the operator.

Risk Level

Operational risk classification according to SORA methodology:
GRC Final 3 Final ARC ARC-b SAIL II

Ground requirements


The operator shall determine a flight geography that protects third parties outside the operational volume. Thus:

  • Fixed wing: you should use the 1:1 rule to determine the minimum ground safety buffer distance.
  • Rotating wing: in this case, the distance may be reduced by applying the ballistic calculation methodology.

Air Requirements

Flights may not be conducted in airspace classified by an ARC as maximum ARC-b, and in addition, 50% of the manned aircraft must be detectable within 3 nautical miles of the operational volume.

Pilot training


In order to perform flights within the PDRA 05 scenario, it is necessary for the operator to propose to the national aviation authority a training plan that is based on open category operations with the addition of the following elements: 


  • Aviation safety
  • Air regulation for specific category, SORA and PDRA.
  • Navigation
  • Human factors
  • Operational procedures
  • Aircraft knowledge
  • Meteorology
  • Risk mitigation for air risk



In addition, a practical training plan based on the characteristics of the operation,  which should cover:


  • Preparation of operations
  • Flight preparation
  • Flight under normal conditions
  • Flight under abnormal conditions
  • Flight under emergency conditions


PDRAs are much more flexible than standard scenarios because they allow us to justify how we meet the scenario requirements. In addition, the list of scenarios is much longer, allowing the development of new activities in the sector that are highly specialized and easily adaptable to new aircraft and other technologies.

Don’t hesitate to start your journey to fly into these scenarios!

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