E Drops to FL125 on the 21st of May
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Not sure what your point is. 
Cruise @ FL125 is not available if Area QNH is below 963hPa?
LL of CTA is not changed. (edit...LL of CTA is not changed by change in QNH)
Cruise @ FL125 is not available if Area QNH is below 963hPa?
LL of CTA is not changed. (edit...LL of CTA is not changed by change in QNH)
Last edited by CaptainEmad; 20th May 2020 at 07:55.
Best to use an umbrella from 21 May to protect against all the raining aluminium, eh Cap’n!
Raining aluminian, (I know you are jesting LeadB!), but let's put the change in perspective:
On 20th IFR receives traffic information on other IFR and known VFR;
On 21st IFR receives separation from other IFR and traffic on known VFR.
I once watched two PT jets separating themselves south of Ayers Rock, one climbing out, the other inbound on descent. Heaps of traffic information, heaps of pilot-pilot separation, both had to level off until they observed passing on TCAS!
From tomorrow, above FL125 (depends if lower Class E trial still going ahead) ATC will vector for 5NM separation and easily achieve uninterrupted climb/descent for both.
My question is:
Q: Without the pressure to retain Class E below FL180 as exists in the USA, and in Australia VFR aircraft require transponders to fly in Class E, why didn't Airservices request CASA to declare Class C down to FL125?
A: Because transponders can only be detected by Secondary Surveillance Radar (SSR) which costs money, whereas ADS-B is detected by a unit about the size of a beer fridge, and from space if Airservices will pay for it.
Cynical Conclusion - Once again the federal government (Airservices and CASA) has spotted a way to make themselves look good, and potentially make more money from IFR, without having to spend any money to protect IFR from VFR.
On 20th IFR receives traffic information on other IFR and known VFR;
On 21st IFR receives separation from other IFR and traffic on known VFR.
I once watched two PT jets separating themselves south of Ayers Rock, one climbing out, the other inbound on descent. Heaps of traffic information, heaps of pilot-pilot separation, both had to level off until they observed passing on TCAS!
From tomorrow, above FL125 (depends if lower Class E trial still going ahead) ATC will vector for 5NM separation and easily achieve uninterrupted climb/descent for both.
My question is:
Q: Without the pressure to retain Class E below FL180 as exists in the USA, and in Australia VFR aircraft require transponders to fly in Class E, why didn't Airservices request CASA to declare Class C down to FL125?
A: Because transponders can only be detected by Secondary Surveillance Radar (SSR) which costs money, whereas ADS-B is detected by a unit about the size of a beer fridge, and from space if Airservices will pay for it.
Cynical Conclusion - Once again the federal government (Airservices and CASA) has spotted a way to make themselves look good, and potentially make more money from IFR, without having to spend any money to protect IFR from VFR.
Thread Starter
Originally Posted by Emad
Cruise @ FL125 is not available if Area QNH is below 963hPa?
Originally Posted by Approach
I once watched two PT jets separating themselves south of Ayers Rock, one climbing out, the other inbound on descent. Heaps of traffic information, heaps of pilot-pilot separation, both had to level off until they observed passing on TCAS!
Originally Posted by Approach
From tomorrow, above FL125 (depends if lower Class E trial still going ahead) ATC will vector for 5NM separation and easily achieve uninterrupted climb/descent for both.
Originally Posted by Mister Approach
Cynical Conclusion - Once again the federal government (Airservices and CASA) has spotted a way to make themselves look good, and potentially make more money from IFR, without having to spend any money to protect IFR from VFR.
"Potentially" = "I don't really know, but I think that might be the case".
I see the children are back putting in their 2-bob's worth... Kindy out for the afternoon?
Last edited by Capn Bloggs; 21st May 2020 at 04:52. Reason: Removed a response to Emad, as I have just noticed he modified the post of theirs that I quoted.
This is going to cause chaos in the Pilbara and jam frequencies even more than they are now. How long until there is a near miss with someone unable to get a clearance buzzing along at 9-10 000'nearly wiping out another aircraft. At least at FL185 there was some room to get up and out of the way.
Join Date: Oct 2006
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I see the children are back putting in their 2-bob's worth... Kindy out for the afternoon?
Thread Starter
On reading this thread from the start
Thread Starter
Would have been good if ASA had put on another controller or two so we didn't get held down below E while the controller was talking to others. Nice levelling AT Transition, altimeters, speed, checklists, clearances. Twice out of two attempts! Only going to get better, I suppose... Can't wait 'til it gets to 8500, then 700, then on the ground. If it was made 1200ft, we could just level off at circuit altitude. That'd be fun.
Would have been good if ASA had put on another controller or two so we didn't get held down below E while the controller was talking to others. Nice levelling AT Transition, altimeters, speed, checklists, clearances. Twice out of two attempts! Only going to get better, I suppose... Can't wait 'til it gets to 8500, then 700, then on the ground. If it was made 1200ft, we could just level off at circuit altitude. That'd be fun.
