Originally Posted by
Monarch Man
Airbubba,
Just had a look at the RASSE 1E in my company (biggest 777 operator...works us like the slaves we are) and it most certainly shows PORPA as a flyover before turning on the arc to PORSH.
Thanks for taking a look, is it coded flyover in the FMS or on the chart in the tablet? Do you have RF capability in all of your Triples? Is your database in error perhaps? I found a miscoded constraint on a SID the hard way a few years ago.
As
bekoblokage said:
Originally Posted by
bekolblockage
As you also indicate, the correct charting format of PORPA as fly-by is used in the RF chart. The path terminator coding for RF is necessarily different as the requirement to fly a fixed radius from a centre takes over immediately at the fix which actually requires the aircraft to commence roll-in just prior to PORPA.
The chart linked on the Hong Kong Aerodromes site definitely has PORPA charted as a fly-by waypoint:
http://www.hkatc.gov.hk/HK_AIP/AIP/A...RASSE%20EF.pdf
The Hong Kong AIS bulletin announcing publication of the RASSE 1E and the other RF noise mitigating SID's has this:
2.2 The new SIDs mainly overlay the existing noise mitigating SIDs except Radius-toFix (RF) turn is used (instead of a Direct-to-Fix (DF) turn) at PORPA and ROVER.
2.3 With the RF leg, the coding of waypoints PORPA and ROVER of these new noise mitigating SIDs are fly-by waypoints.
http://www.hkatc.gov.hk/HK_AIP/supp/A19-11.pdf
Originally Posted by
Intruder
OTOH, IIRC an RTF SID in HKG must be explicitly requested by the crew. If the crew is unfamiliar, they may not bother with the request.
That is indeed what the book says. From the pub linked above:
2.6 For those capable and approved aircraft planning to fly the RF SID procedure, voice request for the RF SID via radio frequency from aircrew is required before sending the Pre-Departure Clearance (PDC) request to ATC via data link.
Recommended R/T phraseology from aircrew: ‘Request Radius-to-Fix SID’.