What has happened to SBAS?

[redsnail]

Hi Sunfish "except Australians are last to benefit as usual.", better than the UK who had SBAS for LPV approaches but after leaving the EU and EASA, no longer have access to it. Another win for Brexit....

[Bug]

Redsnail
Not sure how that is "better than the UK".
At least UK had SBAS LPV for a time.
We have never had it.

[redsnail]

Yep, we had it and lost it all because of ridiculous politics.... No idea if the UK will ever get it back again. Frustrating.

[OZBUSDRIVER]

According to this site. Not going to be fully operational till 2025.

[OZBUSDRIVER]

Here is some info that may make Redsnail happy

[redsnail]

Cheers Ozbusdriver, I reckon I'll be retired before it's operational

[Sunfish]

OZbusdriver, thank you, but......... "researching applications 25 years after the technology was released and available in the USA??? What is the Government smoking? Do they think Einsteins field equations and Maxwells equations are 'different" down under?

WAAS/SBAS is settled science get on with it! There is SFA need for research!!!!!!!! Miners and Farmers need it now!!!!!!

[Capt Fathom]

Originally Posted by Sunfish

Miners and Farmers need it now!!!!!!

Croppies have been using their own DGPS for years. No reason why Mining and Farmers can’t….. if they are not already!

[Bug]

Contract awarded to Lockheed Martin.
Glacial progress so far, but maybe this indicates light at the end of the tunnel (hopefully that light isn't the headlight of an oncoming train full of Canberra bureaucrats moved to oversee this project).

I cannot post web links yet.
Google " Lockheed Martin awarded SouthPAN contract " in Aust Defence Magazine.

[PiperCameron]

I've been following SBAS for a little while from a personal interest in satellite tech and the work of some folks I know, and although not all that clear as yet, I'm told that the system we'll be getting is slightly different and much more advanced than the other GPS augmentation systems out there.

I note various articles are talking about it (a) making Baro-VNAV completely redundant and (b) offering better than 100mm accuracy on approach.

[Flying Binghi]

“100mm accuracy”…. Hmmm… I wonder if terrorists could make use of a bomb drone with that sort of accuracy…..







​​​​​…

[PiperCameron]

Originally Posted by Flying Binghi

“100mm accuracy”…. Hmmm… I wonder if terrorists could make use of a bomb drone with that sort of accuracy​​​​…

Probably... and that might be part of the reason for the roll-out delay whilst they work through challenges like that.

They were joking that it's accurate enough to allow you to choose which part of the center-line stripe you wanted to land on. If it's as good as they say, that's crazy!

[Capn Bloggs]

Originally Posted by P Cameron

I note various articles are talking about it (a) making Baro-VNAV completely redundant

Nothing new in that. Different system, different boxes required. SBAS has always given you LPV, which has lower DAs than LNAV-VNAV, but about the same as RNP-AR, without, as I understand it, a lot of the hassle.

[Capt Fathom]

The SYD and MEL GBAS approaches have near enough to 200' DH.

[Captain Nomad]

Whatever you do, don't use it yet:MELBOURNE FIR/BRISBANE FIR (YMMM/YBBB)
C1311/22
NEW SBAS SOUTHPAN (SERVICE PROVIDER IDENTIFIER 8) (L1, DFMC) NOT
COMMISSIONED
RADIATING ON TEST, DO NOT USE FOR NAVIGATION DUE POSSIBLE FALSE
INDICATIONS
FROM 09 140237 TO 11 300200 EST

[Lumps]

(b) offering better than 100mm accuracy on approach.

Great! Let's wait another 5 years and get it down to 20mm accuracy

[Flying Binghi]

Originally Posted by Lumps

Great! Let's wait another 5 years and get it down to 20mm accuracy

We may not have a civilian usable GPS signal in 5 years.


It is interesting having a look-see at one of Indonesias main news services YouTube channel. Seems they are supporting terrorists who send missiles into city’s. Have a look-see at the comments sections of the vids..


https://m.youtube.com/c/tribuntimur/videos

[OZBUSDRIVER]

Binghi, can you be a bit more specific with your links. My indonesian language skills is not too good.

[Flying Binghi]

Originally Posted by OZBUSDRIVER

Binghi, can you be a bit more specific with your links. My indonesian language skills is not too good.

Most of the vids relating to the war are pro putin. They do offer up a little counterbalance at times, though not much.

No need to do many translations. Just have a look at all the Russian flags in the comments section.

Here’s an example:

Peluncur Roket Pasukan Muslim Chechnya Meluncur Bak Hujan Deras 'Proyektil' di Nasionalis Ukraina

Chechen Muslim Forces Rocket Launcher Launches Like Torrential Rain 'Projectile' in Ukrainian Nationalists

You Tube

[PiperCameron]

Originally Posted by Flying Binghi

We may not have a civilian usable GPS signal in 5 years.

Are you referring to the US-controlled GPS constellation specifically? or GPS/GNSS more generally?? If the former, then the US has always been able to 'tweak' the accuracy in certain contested regions and if the latter, it's only the lazy/stupid terrierists that would rely on civilian GPS in a war zone - everyone else sets up their own (classified) positioning systems anyway.

Even though Australia now has a highly-paid 'Space Command' with a remit to ensure Aussie satellites and signals don't get tampered with (exactly how they'll do that is anyone's guess), perhaps on final approach GBAS has it's advantages after all.

I get the impression we went with SBAS partly because it was cheaper than installing GBAS stations at every major airport.. but others here may know.