Tool: SAIL estimator
Method: SORA 2.5 tables
Result: Indicative only

Where does your operation sit?

Work through the published SORA 2.5 tables in about a minute. Nothing you enter leaves your browser.

1 Aircraft

Maximum characteristic dimensionMaximum speed

250 g or less, and 25 m/s or slower

2 GroundMaximum population density in your footprint

3 Ground risk mitigations only claim what you can prove

M1(A) ShelteringM1(B) Operational restrictionsM1(C) Ground observationM2 Reduced impact dynamics

4 AirspaceWhere do you fly?

How to read this

This estimator follows the iGRC table, mitigation credits and SAIL table published for SORA 2.5. It simplifies some things: the initial ARC is a generic mapping that ignores strategic mitigations, and mitigation credits assume that you meet their integrity and assurance criteria. Combinations may carry extra conditions.

It is not a risk assessment and it is not official. Only a complete assessment accepted by your national authority counts. Do not make safety or purchase decisions on this result alone.

To understand the inputs, read our guides on the ground risk class, the air risk class and SAIL levels.

	a	b	c	d
≤2	I	II	IV	VI
3	II	II	IV	VI
4	III	III	IV	VI
5	IV	IV	IV	VI
6	V	V	V	VI
7	VI	VI	VI	VI