Different RNAV standards

[punkalouver]

According to an article in Air Transport World....."The main problem for Eurocontrol is that 11 different RNAV standards have been created across Europe for operations in terminal airspace, leaving flightcrews uncertain whether they are licensed to use those procedures."

Is this accurate and if so, has it affected you?

[Down Three Greens]

I think you might find that this is where P-RNAV (equivalent to RNP-1 but not identical) is coming in to harmonise this situation. There are numerous standards such BRNAV, FMS, BRNAV, PRNAV, RNP, BRNAV+, etc.

There will hopefully be two main high accuracy RNAV standards in the future, BRNAV (RNP5 i.e. Enroute) and then PRNAV (RNP1 i.e. Terminal). These will be probably replaced by RNP RNAV in the coming 10 years. RNP RNAV is designed to eliminate the dependency on particular sensors and concentrates on the navigational performance of the aircraft.

Hope this helps

DTG

[FE Hoppy]

We are a long way behind our US cousins in this area. I understand the US RNP standards are to be adopted by ICAO and hopefully by the rest of the world soon.

[rhovsquared]

Straight from the horse's mouth FAA AIM U.S. Standard RNP Levels

RNP Level
Typical Application
Primary Route Width (NM) -
Centerline to Boundary

0.3
Approach
0.3

1
Terminal
1.0

2
Terminal and
En Route
2.0


Rhov