Article 74 Endangering safety of any person or property
A person shall not recklessly or negligently cause or permit an aircraft to endanger any person or property
Only some of the Articles in the ANO apply to models, or as the Civil Aviation CAA (CAA) define them: Small Aircraft.
The definition of a small aircraft is:
‘Small aircraft’ means any unmanned aircraft, other than a balloon or a kite, weighing not more than 20 kg without its fuel but including any articles or equipment installed in or attached to the aircraft at the commencement of its flight;
If your model is over 7Kg in weight, then Article 98 also applies:
For reference, the text of other articles applicable to model flying are listed:
Article 68 - Issue of aerial application certificates.
Article 96 - Power to prohibit or restrict flying.
Article 97 - Balloons, kites, airships, gliders and parascending parachutes.
Article 98 - Regulation of small aircraft
Article 144 - Power to prevent aircraft flying