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GPS IAP design in different countries

Emir, two problems:
- AFIS can’t give instructions.
- aircraft must be equipped with NDB (at least for now).

EGTR

Emir wrote:

I don’t see this as a problem. ATC will give you the instructions what to do in after completing published part of missed approach. It’s expected to be able to execute another approach immediately and if holding is needed ATC can give you non-published one.

As you’re in uncontrolled airspace, there is no ATC so you have to figure out for yourself what to do. That’s fine as long as you have given the matter some thought in advance.

ESKC (Uppsala/Sundbro), Sweden

Airborne_Again wrote:

As you’re in uncontrolled airspace, there is no ATC so you have to figure out for yourself what to do. That’s fine as long as you have given the matter some thought in advance.

It should not be a problem, but with no radar AFIS needs to know where are you.
A published hold therefore present a solution to traffic separation problem:
- you try an approach
- you execute a MAP
- you enter hold
- someone else can attempt an IAP.

Yes, I understand that at EGBK it is not a problem as they’ve been allowed to introduce the approaches after they limited them to six approaches per day.

EGTR

But they can have all the 6 people per day showing at once at 1200UTC?

The same issue arise on DYI IAP approach OCAS even on traditional aids nothing to do with GPS or IAP design, one has to rely on COM and TCAS/EC traffic solutions, also nearby radar units will not offer much help with traffic OCAS if you look doing an approach to other places than their airfield

If ATC are not around there is also a requirement for an overhead join and watch for uncontrolled VFR traffic

Paris/Essex, France/UK, United Kingdom

Ibra wrote:

But they can have all the 6 people per day showing at once at 1200UTC?

Ah! For that there is a compulsory PPR. :)

The same issue arise on DYI IAP approach OCAS even on traditional aids nothing to do with GPS or IAP design, one has to rely on COM and TCAS/EC traffic solutions, also nearby radar units will not offer much help with traffic OCAS if you look doing an approach to other places than their airfield

Nearby radar units can help traffic which is still high, i.e. IAF, hold, etc. Then it’s all procedural, IF it is a published procedure.
For DIY IAP – nothing you can do. Well, in the south you can get to the overhead under the LARS (their Minimimum Surveilance Altitude was something like 1400ft AMSL?) and then decend in ATZ, where we should have only known traffic.
As we know, nothing enters ATZ unless A/G or AFIS is notified</sarcasm off>
After that you can descend to MSA and break the clouds.

If ATC are not around there is also a requirement for an overhead join and watch for uncontrolled VFR traffic

You watch for traffic even if ATC IS around. :)
I really like the NextGen by FAA, TIS in particular, where they retransmit all traffic as seen by SSR and primary to all aircraft…

EGTR

At LFFK we have two maintenance organisations and several based owners with IRs. They petitioned the town hall (owners of the airfield) for a GNSS approach.
The pilots, town hall and others then worked with the DGAC to construct an IAP to our runway 27. The airfield does not have a tower ATC or AFIS, there is also a restricted area with a base at 3000 ft above the airfield. During the planning stage permission was granted for the construction of wind turbines in the area, 3 of which are very close to a long final to runway 27. This meant itnwas necessary to redraw thel IAP to provide better obstacle clearance for the approach. Also the ground holding points had to be pushed further away from the runway. LFFK is OCAS. When flying IFR to or from the airfield one contacts either Nantes or La Rochelle approach. It is unlikely that one can make contact with either much below 2500 ft. IFR in France requires 2 way radio communication above 3000 ft. The target altitude at the IAF is 2400ft. In France, as discussed in previous threads on this forum requires a circle to land in the absence of ATS. The cost of the annual up keep of the approach had to be kept to a minimum, there being no landing or parking fees to offset the costs which meant they would need to be shared by the associations and people who wanted the service. If you are interested, the cost of the upkeep/maintenance of the GNSS approach to LFFK is around €3600 per year.
LFBN, you mentioned is close by and needed a different approach design. It has an AFIS and originally had an NDB approach.
Perhaps this might explain some of the reasons for the difference in IAPs both across the same country and in others.

France

gallois wrote:

If you are interested, the cost of the upkeep/maintenance of the GNSS approach to LFFK is around €3600 per year.

What’s involved in that? An obstacle survey?

ESKC (Uppsala/Sundbro), Sweden

@Airborne_Again, I really don’t know what the €3600 is for. I am assuming its the cost of DGAC checks every year or perhaps more, the updating of paperwork and any monitoring of obstacles being erected such as cranes or whatever, and getting the legal department to take eg the owners of the wind turbines and cranes to task if they don’t replace warning beacons on top of them fast enough when they fail. Apparently the DGAC have the right to demand that man made obstacles, within a certain area of an airfield are removed if they do not meet visibility conditions. I am guessing this only applies to obstacles erected after the IAP was put in place or maybe (as in the case here when the IAP was approved by the DGAC.) I write this because on three of the wind turbines near the long final, the lights on top failed. Nothing was done for 2 days, but as soon as a pilot contacted the DGAC, the lights were miraculously fixed within 2 hours of the call. Coincidence? Maybe:)
The GNSS approach only became active in September 2019 and as we are not a busy airfield we will have to wait a while to see its true worth.

France

arj1 wrote:

- aircraft must be equipped with NDB (at least for now).

Isn’t that still mandatory for IFR aircrafts in EASA world? Anyhow, you’ll definitely be capable to fly this holding using GPS.

LDZA LDVA, Croatia

Emir wrote:

Isn’t that still mandatory for IFR aircrafts in EASA world?

Actually, not according to IAP. You must have NDB if it is required.

EGTR
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