Last year on 14 December 2018, I posted Seletar ILS solution - Kaytee Kaitak Konsep (wakakaka) in which I wrote:
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Seletar Airport North (top of pic) is Johor, Malaysia |
But in today's modern aviation world, the aviator can and should rely on GPS waypoints (positions) to track from TEKONG until positioning the aeroplane for a quick left turn into Seletar. Then the pilot has to do a 'Seletar turn' (akin to the 'Hong Kong turn') but of course to the LEFT for Seletar Runway 21.
Coordination with traffic from Changi and Paya Lebar towards the north will be the problem of Singapore ATC, wakakaka.
Wakakaka, today I read in The Malaysian Insight's Firefly will incur costs to implement GPS approach to Seletar, says Loke (extract):
There will be a cost involved for Malaysia’s Firefly to implement GPS-based instrument approach procedures at Seletar Airport, replacing the Instrument Landing System (ILS) procedures, said Transport Minister Anthony Loke.
He said the GPS approach is a requirement that both Malaysia and Singapore’s Civil Aviation authorities had agreed before.
As I had written in my previous post:
No no no, don't thank me as I consider it my civic duty to save Sing from a 'loss of face' when Malaysia gives them the 'bird' and builds highrise structures in Gudang Pasir that will eff the Runway 21 ILS flightpath, wakakaka.
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wakakaka |
Singapore must have decided to close Seletar Airport to all commercial flights soon and use it only for military flights.
ReplyDeleteAll commercial flights will have to fly into Changi Airport.
Looks like Firefly has to fly into Changi Airport soon also.
The PH GOVERNMENT can and does negotiate with Singapore without fear or favour.
ReplyDeleteThe Singapore government previously took a "take it or leave it" attitude, ILS over Past Gudang is the only way, which the Najib Administration simply caved in to on so many bilateral issues.
Faced with Malaysia closing its airspace to Aircraft approaching Seletar, Sing had no choice but to accept practical alternatives.
Malaysia needed a solution too, as Firefly will Tutup Kedai long term without the ability to fly into Singapore.
Ultimately, it may not be good to be too dependent on GPS.
why is it not good to be too dependent on GPS? GPS procedures have reached quite an impressive stage with teh tracking dveice's advancement in technology. GPS is a lot cheaper than the very expensive ILS, both airborne and ground equipment
DeleteThe "Kai Tak turn" approach via Runway 13 was one of the riskiest approaches of any major airport in the world.
DeleteFor sure, there were/are minor airports in mountainous areas which are more dangerous, but none of the other major global aviation hubs.
The pilot had to visually acquire the checkerboard, and also the runway , and time his sharp turn to the split second, all the time watching his speed and altitude.
They are now proposing a Seletar turn , using GPS instead of the Checkerboard, mixed right in the middle of the congested approach to Changi.
I hope the authorities know what they are doing, with safety considered above all, and not put national machismo above safety.
ILS is a proven system. The few crashes that have occurred with an ILS approach have been thoroughly investigated, and found to be caused by equipment failure either at the airport or aircraft or pilot misinterpreting the ILS signals.
A lot of older aircraft GPS systems are only good for 2-dimensional long-distance navigation, and guidance for landing down to a minimum altitude. Below that, the GPS doesn't have the accuracy to guide you any further. Its no real substitute for ILS in poor visibility.
The latest GPS equipment now available provide much more precise height guidance , that must be the "cost" that Loke is referring to, because the Firefly ATR72s do not have the equipment.
modern GPS with vertical and naturally horizontal guidance is as good as an ILS, the latter requiring both ground and airborne equipment. Of course older (more ancient) GPS needs updating
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