S T A T U T O R Y I N S T R U M E N T S 2021 No. 563  CIVIL AVIATION  The Air Navigation (Restriction of Flying) (Sywell, Flying  Legends) Regulations 2021  The Secretary of State has decided that it is in the public interest to restrict flying in the vicinity of  Sywell Aerodrome, Northamptonshire, by reason of the holding of flying displays.  The Secretary of State makes the following Regulations in exercise of the powers conferred by  article 239 of the Air Navigation Order 2016( a ).  1.  These Regulations may be cited as the Air Navigation (Restriction of Flying) (Sywell, Flying  Legends) Regulations 2021 and come into force on 10th July 2021.  2.  In regulation 3(1) the times referred to are Co-ordinated Universal Time( b ).  3. —(1) Subject to paragraph (2), between 1200 hours and 2000 hours on 10th and 11th July  2021 no aircraft is to fly below 5,500 feet above mean sea level within the area bounded by a  circle having a radius of 4 nautical miles whose centre is at 521837N 0004753W.  Signed by authority of the Secretary of State for Transport  10th May 2021  David J Best Grade 7  Department for Transport  (2) Paragraph (1) does not apply to any aircraft flying in accordance with a permission  issued by the Sywell Aerodrome flying display director.  Restricted airspace  Interpretation  Citation and commencement  Made - - - - 10th May 2021  Coming into force - - 10th July 2021  ( a ) S.I. 2016/765, to which there are amendments not relevant to these Regulations.  ( b ) Co-ordinated Universal Time (UTC) is one hour behind British Summer Time (BST). 