ENR 3.5 OTHER ROUTES
1 SINJON CROSSING BY MILITARY AIRCRAFT
1.1 Introduction
1.1.1 In order to facilitate the movement of various types of military traffic operating through the Changi Control Zone without impeding the flow of procedural traffic operating into and out of the Zone, the following procedures have been established for strict compliance by pilots-in-command (refer to chart ENR 3.5-3).
1.2 Crossing by Slow-moving Military Aircraft (Slow-lane Crossings)
1.2.1 All slow-moving military aircraft are permitted to cross the Changi CTR 8.1NM and 6.7NM south of the extended centreline of RWY 02L and RWY 02C respectively. EASTBOUND and WESTBOUND flights at 500ft AMSL without reference to Singapore Tower or Singapore Approach.
1.2.2 The EASTBOUND is from PULAU AYER MERBAU (011600N 1034340E) on track of 110° MAG to the northern tip of Lazarus Island (SINJON). Thereafter, the track is 089° MAG to Point “E1” (10 DME SJ) and then direct to NEXUS [34 DME SJ R-077 (23 DME VTK R-100)] (012048N 1042424E).
1.2.3 The WESTBOUND is from NEXUS direct to Point “E1”. Thereafter, the track is 269° MAG to the northern tip of Lazarus Island (SINJON) and then 290°MAG until entering Tengah Aerodrome Traffic Zone.
1.3 Crossing by Fast-moving Military Aircraft (Fast-lane Crossings)
1.3.1 All fast-moving military aircraft are permitted to cross the Changi Control Zone 9.4NM and 8NM south of the extended centreline of RWY 02L and RWY 02C respectively. EASTBOUND flights are to operate at 1,000ft AMSL and WESTBOUND flights at 500ft AMSL without reference to Singapore Tower or Singapore Approach.
1.3.2 The EASTBOUND is from PULAU SAKRA (011545N 1034200E) on a track of 115° MAG to Pulau Bukom Kechil and then track 110° MAG to 1NM south of the southern tip of Lazarus Island (SINJON). Thereafter, the track is 089° MAG to Point “E” (011221N 1040121E) and then direct to SIERRA (011830N 1042600E).
1.3.3 The WESTBOUND is from Point “E” on the reciprocal of the eastbound track to PULAU SAKRA.
1.4 Westbound SINJON Crossings at 1,500 FT
1.4.1 A WESTBOUND LOW LEVEL TRACK of 1,500ft crossing the Changi CTR 10.9NM and 9.3NM south of the extended centreline(s) of RWY 02L and RWY 02C respectively, is to be used under VMC. This Westbound Low Level Track is established from Point "E" to a point 0.5NM north of PULAU SAMBU (011045N 1035356E) to SINJON.
1.5 Eastbound SINJON Crossing at 1,500FT
1.5.1 A EASTBOUND LOW LEVEL TRACK of 1,500ft crossing the Changi CTR 10.9NM and 9.3NM south of the extended centreline(s) of RWY 02L and RWY 02C respectively, is subject to coordination from Singapore Approach.
1.6 Operating Hours of SINJON Crossings
1.6.1 SINJON Crossings are applicable at all times of the day.
1.7 Suspension of Unrestricted Military Crossings
1.7.1 In view of military traffic crossing the Changi CTR to the south, whenever it is known or has been made known that procedural or civil training traffic are unable for reasons of load or performance, etc., to effect a normal climb on RWY 20R/20C, the unrestricted crossings shall be suspended and the RSAF FIS Controller be informed immediately.
1.7.2 All aircraft departing on RWY 20R/20C on SID are required to cross 8 DME VTK at or above 2,000ft. If the height restriction cannot be complied with, the pilot-in-command of an aircraft departing on RWY 20R/20C shall inform ATC during the time when the aircraft commences taxiing to the holding point for departure.
1.8 Altimeter Setting
1.8.1 The Singapore QNH setting shall be used by military aircraft crossing the Changi CTR under the above procedures.
1.9 Emergency
1.9.1 In the event of an emergency occurring to a procedural aircraft in the area e.g. an engine cut on takeoff or landing etc., all unrestricted military crossings under these procedures shall be forthwith suspended. Such suspensions shall be notified immediately to the Duty RSAF FIS Controller, SATCC.
2 TRANSIT CHANNEL
2.1 Introduction
2.1.1 To ensure safety of aircraft operations and minimise interruptions to aircraft operating in Light Aircraft Training Area A, a transit channel is established for military traffic to transit through. The Transit Channel will be all the airspace within Area A north of Mandai Road.
2.2 Activation
2.2.1 The Transit Channel will be activated only when there is a military aircraft crossing. Activation will be initiated by Paya Lebar Approach. All aircraft operating within the area are advised to vacate the channel on receipt of the activation. Such aircraft shall report their intentions to Paya Lebar Approach.
2.2.2 To ensure safety of operation, all aircraft operating within the lateral and vertical limits of the channel shall notify Paya Lebar Approach.
2.3 Dimensions
2.3.1 The co-ordinates for the Channel are:
012714N 1034752E 012442N 1034705E 012438N 1034556E 012650N 1034619E.
(refer to chart ENR 3.5-3).
2.4 Vertical Limits
2.4.1 Ground level to 2,000ft.
3 HORSBURGH LIGHTHOUSE
3.1 Horsburgh Lighthouse (011949N 1042420E) is a visual reference point for VFR flights.
3.2 For the purpose of safe navigation, all VFR traffic in the vicinity of the Horsburgh Lighthouse shall exercise extra caution when approaching the area.
3.3 Vertical Limits: Ground/sea level to 2,000 feet for VFR flights.
Note: Minimum flight altitude on ATS Route G580 above the Horsburgh Lighthouse is 3,000 feet.
Note: Minimum flight altitude on ATS Route G580 above the Horsburgh Lighthouse is 3,000 feet.
3.4 The Singapore QNH shall be used by all aircraft in the vicinity of Horsburgh Lighthouse.
