Page 761 - UK Air Operations Regulations (Consolidated) 201121

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~ Regulation SPO - ANNEX VIII - Specialised Operations Centrik

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SPO.OP.116 GM1 Performance-based navigation — aeroplanes and helicopters
DESCRIPTION
(a) For both, RNP X and RNAV X designations, the ‘X’ (where stated) refers to the lateral
navigation accuracy (total system error) in NM, which is expected to be achieved at least
95 % of the flight time by the population of aircraft operating within the airspace, route or
procedure. For RNP APCH and A-RNP, the lateral navigation accuracy depends on the
segment.
(b) PBN may be required on notified routes, for notified procedures and in notified airspace.
RNAV 10
(c) For purposes of consistency with the PBN concept, this Regulation is using the
designation ‘RNAV 10’ because this specification does not include on-board performance
monitoring and alerting.
(d) However, it should be noted that many routes still use the designation ‘RNP 10’ instead of
‘RNAV 10’. ‘RNP 10’ was used as designation before the publication of the fourth edition of
ICAO Doc 9613 in 2013. The terms ‘RNP 10’ and ‘RNAV 10’ should be considered
equivalent.
SPO.OP.120 Noise abatement procedures
The pilot-in-command shall take into account published noise abatement procedures to minimise the
effect of aircraft noise while ensuring that safety has priority over noise abatement.
SPO.OP.120 AMC1 Noise abatement procedures
NADP DESIGN — OPERATIONS WITH COMPLEX MOTOR-POWERED AIRCRAFT
(a) For each aeroplane type two departure procedures should be defined, in accordance with
ICAO Doc. 8168 (Procedures for Air Navigation Services, ‘PANS-OPS’), Volume I:
(1) noise abatement departure procedure one (NADP 1), designed to meet the close-in
noise abatement objective; and
(2) noise abatement departure procedure two (NADP 2), designed to meet the distant
noise abatement objective.
(b) For each type of NADP (1 and 2), a single climb profile should be specified for use at all
aerodromes, which is associated with a single sequence of actions. The NADP 1 and
NADP 2 profiles may be identical.
SPO.OP.120 GM1 Noise abatement procedures
TERMINOLOGY — OPERATIONS WITH COMPLEX MOTOR-POWERED AEROPLANES
(a) ‘Climb profile’ means in this context the vertical path of the NADP as it results from the
pilot’s actions (engine power reduction, acceleration, slats/flaps retraction).
(b) ‘Sequence of actions’ means the order in which these pilot’s actions are done and their
timing.
GENERAL
(c) The rule addresses only the vertical profile of the departure procedure. Lateral track has
to comply with the standard instrument departure (SID).
EXAMPLE
(d) For a given aeroplane type, when establishing the distant NADP, the operator should
choose either to reduce power first and then accelerate, or to accelerate first and then
wait until slats/flaps are retracted before reducing power. The two methods constitute two
different sequences of actions.
(e) For an aeroplane type, each of the two departure climb profiles may be defined by one
sequence of actions (one for close-in, one for distant) and two above aerodrome level
(AAL) altitudes/heights. These are:
(1) the altitude of the first pilot’s action (generally power reduction with or without
acceleration). This altitude should not be less than 800 ft AAL; or
(2) the altitude of the end of the noise abatement procedure. This altitude should
usually not be more than 3 000 ft AAL.
(f) These two altitudes may be runway specific when the aeroplane flight management
system (FMS) has the relevant function that permits the crew to change thrust reduction
and/or acceleration altitude/height. If the aeroplane is not FMS equipped or the FMS is not
fitted with the relevant function, two fixed heights should be defined and used for each of
the two NADPs.
SPO.OP.125 Minimum obstacle clearance altitudes — IFR flights
(a) The operator shall specify a method to establish minimum flight altitudes that provide the
required terrain clearance for all route segments to be flown in IFR.
(b) The pilot-in-command shall establish minimum flight altitudes for each flight based on this
method. The minimum flight altitudes shall not be lower than those published by the State
overflown.
SPO.OP.125 AMC1 Minimum obstacle clearance altitudes — IFR flights
GENERAL
Commercially available information specifying minimum obstacle clearance altitudes may be used.
SPO.OP.130 Fuel and oil supply — aeroplanes
(a) The pilot-in-command shall only commence a flight if the aeroplane carries sufficient fuel
and oil for the following:
(1) for visual flight rules (VFR) flights:
(i) by day, to fly to the aerodrome of intended landing and thereafter to fly for at
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