The Air Navigation Order 1989

2.  

Table

Aircraft and Circumstances of Flight	Scale of Equipment Required
	A	B	C	D	E	F	G	H
* Unless the appropriate air traffic control unit otherwise permits in relation to the particular flight and provided that the aircraft complies with any instructions which the air traffic control unit may give in the particular case.
(1) All aircraft within the United Kingdom:
(a) when flying under Instrument Flight Rules within controlled airspace	A*				E*	F*
(b) when flying within any airspace in respect of which special rules are prescribed by the Rules of the Air and Air Traffic Control in relation to a particular aerodrome, so as to require two-way radio communication with that aerodrome	A*
(c) when making an approach to landing at an aerodrome notified for the purpose of this sub-paragraph							G*
(2) All aircraft (other than gliders) within the United Kingdom:
(a) when flying at or above flight level 245	A*				E*	F*
(b) when flying within such airspace as may be notified for the purposes of this sub-paragraph, being airspace in respect of which special rules are prescribed by the said Rules	A*				E*
(c) when flying at or above flight level 100					E*
(3) All aircraft registered in the United Kingdom, when flying to, from or over Berlin, Germany	A				E			H
(4) All aircraft registered in the United Kingdom, wherever they may be:
(a) when flying for the purpose of public transport under Instrument Flight Rules:
(i) while making an approach to landing	A		C	D				H
(ii) on all other occasions	A		C					H
(b) multi-engined aircraft when flying for the purpose of public transport under Visual Flight Rules	A							H
(c) single-engined aircraft when flying for the purpose of public transport under Visual Flight Rules:
(i) over a route on which navigation is effected solely by visual reference to landmarks	A
(ii) on all other occasions	A B
Provided that aircraft which come within paragraphs 4(b) and 4(c) above solely by virtue of the provisions of article 107(2)(c) may carry instead of the requirements of the said paragraphs 4(b) and 4(c):
(aa) over a route on which navigation is not effected solely by visual reference to landmarks	A	B
(bb) over water, beyond gliding distance from any land	A
(d) when flying under Instrument Flight Rules within controlled airspace and not required to comply with paragraph 4(a) above	A*