When do the tcas air in the uk

Alongside Airprox reports, NATS has confirmed that, from their data interpretation, over 1, airspace infringements occur each year; this figure sets infringements as one of the highest risk events that NATS face at this time. As traffic levels increase, it is important that we recognise the more likely need for focussed intervention by all stakeholders, to ensure that the potential for mid-air collision does not increase.

MAC is a complex and long-term challenge to all stakeholders and as such the current MAC activity aims to reduce the risk of mid-air collision by pursuing and encouraging targeted and continuous improvements in technology, systems, cultures, training, and operational processes. Major safety boost for offshore helicopters moves closer 25 March, Aircraft engineer given suspended prison sentence for lying about exams 23 August, Safety first 13 May, Screen Reader Navigation Skip to main content Skip to content summary Skip to section navigation Skip to site navigation Skip to site search Skip to footer.

Toggle navigation. Home Safety initiatives and resources. Mid-air collision Our Safety Plan. Use multiple data sources, collaboration with industry and the exchange of information across national and international aviation sectors to identify and address the most significant MAC causal factors. Employ a range of means including best practice recommendations, regulatory change, training and improved information sharing to mitigate the MAC risk.

The programme will continue to: Manage data on MAC events and use this evidence to steer action and mitigation strategies with industry collaboration. Work closely with technology manufacturers to encourage the development and deployment of conspicuity devices which are interoperable, practical installations and affordable. Broadly speaking, RAs tell the pilot the range of vertical speed at which the aircraft should be flown to avoid the threat aircraft.

The visual indication of these rates is shown on the flight instruments. It is accompanied by an audible message indicating the intention of the RA. A "Clear of Conflict" message will be generated when the aircraft diverge horizontally.

RAs aim for collision avoidance by establishing a safe vertical separation - feet , rather than restoring a prescribed ATC separation. For an RA the time is 35 seconds. The time scales are shorter at lower altitudes where aircraft typically fly slower. Unexpected or rapid aircraft manoeuvre may cause an RA to be generated with much less lead time.

It is possible that an RA will not be preceded by a TA if a threat is imminent. The effectiveness of an RA is evaluated by the ACAS equipment every second and, if necessary, the RA may be strengthened, weakened, reversed, or terminated. The size of the protected volume depends on the altitude, speed, and heading of the aircraft involved in the encounter. See illustration below.