Weight groups 2.
Although ICAO currently provides no guidance or procedures in relation to en route wake turbulence, in the UK, the NAA has specified separation minima for this case which must be applied by ANSPs. Separation minima seem to be sufficient. The approach controller is responsible of the separation during his approach sequence preparation.The pilot-in-command shall be responsible for ensuring that the spacing from preceding aircraft of a heavier wake turbulence category is acceptable. To minimize the extent of this risk, many airlines specifically advise their passengers to ‘keep their seat belts fastened whilst seated even if the seat belt sign is off’. <> However, there is a clue where it might be, and that is to look for the vapor trail,” Brady said. Where another aircraft encounters such turbulence, a Wake Vortex Encounter (WVE) is said to have occurred. In general, heavier aircraft produce stronger wake turbulence and lighter aircraft are more vulnerable. They are defined for aircraft under ATC control which have not reported the preceding aircraft in sight and have been instructed to follow and maintain their own separation from that aircraft visually. f) The AIC provides advice for avoiding vortices in all phases of flight. Helicopters are also susceptible to the effects of wake turbulence from large fixed wing aircraft, and the separation requirements above apply equally to helicopters as well as fixed wing aircraft. AIC on helicopter wake turbulence 3. P 072/2010 ‘Wake Turbulence’ provides detailed information including aircraft weight categories and the separation which controllers are required to provide between aircraft of different categories. Wake turbulence encounters in other flight phases have been recorded in controlled airspace at well above radar separation minima but have not, in recent times, led to the terminal loss of control of a large commercial transport aircraft. (Photo by Mike Hewitt/Getty Images) With an A380 just airborne, an A320 has to wait for 140 seconds before it is allowed to depart — plenty of time for an aircraft to cross the runway to Terminal 4. �+�ri�F��N�q��F�]�'Ar\���� ��Aj��#55#g�M�[����Oo:b:���Z�R�c)����Z�k=�{a:E%��V�#��@-��A���%>���̼�6�Ijv�I�� �� �BY��y�\������T��$�x�gG5��Լ�V�)�5�T�t�I�,�Ќph��)ԡq噂���˱�2`��v�H;��'9�N��%)���%k��ʸ�3u^�]�'F O�쁗��C��� ����­�WE|��u�$8B�a'�h���������,�u�Xto�G�Fv_� y��!��jܶm�D�]�΍h�B!�Ґ,5���Rr=K6�N�K��*}��8���m�^��y�}����`U/�K�j�������U"[�7P�#�O pU�A�+�CS� V^�X�4���}� s]�;���rS�[��+(b#�*�����LvpO�m%��L�@�&yd����6)YNz��.$�o劓�|?��/�Q^�x$��1��9f����&endstream P 072/2010 ‘Wake Turbulence’ provides detailed information including aircraft weight categories and the separation which controllers are required to provide between aircraft of different categories.

These minima are not applied for a tower controller for taking-off separation.Note that in the IVAO network, IVAO ATC software will provide ATS surveillance system to all positions.During non-radar en-route or arrival sequence and departure sequence of aircraft, an air traffic controller shall The following separation minima for arriving aircraft shall be applied by the air traffic controller:Note that all Boeings 757 which category is MEDIUM shall be considered as HEAVY as first aircraft.An air traffic controller shall not be required to apply wake turbulence separation: �6� f,��� The simple advice for light aircraft pilots is ‘Avoid crossing below 4.9.1.1 Wake turbulence separation minima shall be based on a grouping of aircraft types into three categories according to the maximum certificated take-off mass as follows: a) HEAVY (H)- all aircraft types of 136 000 kg or more; Separation criteria.

To improve awareness of the applicable aircraft wake turbulence category, particularly if it is ‘Heavy’ the following related requirements are also included in ICAO air traffic procedures. It may be possible to define the aircraft MTOM categories differently to achieve this. Flight Calibration Services Limited (FCSL) was required to provide a safety assessment and concept of operations to dans, which included all calibration activities. 4.9.1 Wake turbulence categories of aircraft. %PDF-1.4 request for reduced wake turbulence separation. Note that in IVAO, a tower controller is not responsible of the wake turbulence for arrival separation. Minimum time separation for arriving aircraft not radar-separated is 2 minutes for a MEDIUM aircraft behind a HEAVY aircraft and 3 minutes for a LIGHT aircraft behind a HEAVY or MEDIUM aircraft. Wake Turbulence Recategorization Separation Standards. Small and light aircraft types No separation minima for light category!

B757 is regarded as H when leading, M when following. But I do off course understand that you might want some real ATCOs to confirm that aswell
Wake turbulence is generated when an aircraft generates lift (Figure 1). stream The findings from the past decade of wake turbulence research are helping ensure wake turbulence safety, reduce airport delays, shorten final approaches to airports, and reduce fuel burn and emissions.. Wake turbulence is the movement of air created behind an aircraft in motion.