Article 16
Going by your answers you can fly under your association's Article 16 Auhorisation, which allows you some flexibility over the A3 Open Category.
Below are the requirements your drone must meet to fly in this category along with what you 'MUST', 'MAY' and 'SHOULD' do for safe and lawful flying.
Click here if you're not an association member.
YOUR DRONE MUST...
Display a current and valid UK CAA Operator ID.
NOT exceed 25kg in weight.
YOU MUST...
Hold a current and valid UK CAA Flyer ID.
Fly within visual line of sight (VLOS) at all times.
NOT fly for commercial purpose/s.
NOT fly a 'multirotor-drone' higher than 400ft from the nearest point of the ground.
NOT fly within a residential, commercial, or industrial area.
NOT fly within 50m of uninvolved people (the public) unless your drone is under 7.5kg in weight (see additional comment in 'you may').
NOT fly over or within 50m horizontally of assemblies of people (an assembly is any crowd of people grouped together that cannot move quickly or easily because of others around them, regardless of how many people are in the crowd) unless your drone is under 7.5kg in weight (see additional comment in 'you may').
NOT fly in a manner that recklessly or negligently endangers and person or property.
NOT fly in a manner that recklessly or negligently endangers an aircraft, or any person in an aircraft.
NOT fly in a Flight Restriction Zone (FRZ) without appropriate permission.
NOT take off and land from an area that does not allow drones.
Be able to provide a UK Police officer with your UK CAA Operator ID and Flyer ID information if requested for it by them.
YOU MAY...
Fly by means of First Person View (FPV) provided you have an observer stood with you that maintains Visual Line of Sight (VLOS) for you.
Fly in 'recreational' areas provided you can do so in a safe manner without trespassing.
Fly as close as 30m to uninvolved people if your drone is under 7.5kg.
Fly as close as 30m horizontally to assemblies of people if your drone is under 7.5kg (but NEVER over at any height).
YOU SHOULD...
Read and familiarise yourself with the limits of your association's Article 16.
Always fly in a safe area away from uninvolved people and property.