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-   -   RNAV Departures (https://www.pprune.org/tech-log/440608-rnav-departures.html)

Breakthesilence 24th January 2011 13:28

RNAV Departures
 
Hi guys,

Let's talk about RNAV Departures and B737 Classic FMC (or other aircrafts if useful informations will arise!).
Especially flying a B737 Classic with FMC update 5.0 or earlier than 7.4.

You have a BRNAV departure, it's in your database and your airplane and airline are certified BRNAV. Is there any limitation that might prevent the use of that procedure?

You have a RNAV departure, with no specification regarding the RNP (or BRNAV/PRNAV requirements), you are BRNAV. May you fly that procedure?

If i read correct on the Jeppesen introduction (ref Doc8168) you may fly a BRNAV departure if that procedure has the first part based on a conventional navaid. Is that correct?

Hope this thread will be useful and improve our knowledge in RNAV procedures.

Bye!:}

BOAC 24th January 2011 14:14

You need to be able to 'overlay' conventional nav info ie beacons/radials/DME so you can check the tracking. My recommendation is NOT to try it in LNAV on 'tricky' departures like MAN which jiggle around for noise monitoring 'cos you'll get noise violations! It does not perform. You only need to miss the initial turn by a bit of a mile to ring a bell.

Breakthesilence 24th January 2011 14:47

I agree with you, definitely.

I'd just like to know something relating to law and regulations about the use or not of BRNAV departures in the aforementioned situations.
Note: Company SOPs don't explain anything about it.

Breakthesilence 26th January 2011 13:14

I'd just like to bring this thread up! I can't imagine nobody has nothing to say here! eheh :E


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