Longuard Aviation Consultants Limited, trading as Lacle, is an independent specialist CNS/ATM engineering consultant specialising in issues related to airport safeguarding.

Our core offer is the assessment of buildings and structures within an airport environment to ensure ATC and CNS operations and flight safety are not compromised.

Our specific capabilities include ICAO Annex 14 obstacle limitation assessments, safeguarding of CNS/ATM equipment from interference, as well as flight operations assessments through advanced modelling.

We have played a vital role to Hong Kong International Airport’s expansion since our inception, and have been expanding to support other clients worldwide.