Hi,I've always wondered if there's any way to specify certain waypoints in the FMC as FLYOVER rather than bypass, ie. not to start a turn until AFTER the aircraft has passed the waypoint?Many Thanks....Adam

Only ever seen this on the Airbus FMGCRob

I don't know if there is a way to do it from the CDU, but you can certainly do it when programming a procedure for the PMDG FMC.

How do you do it in the fmc?

>Hi,>>I've always wondered if there's any way to specify certain>waypoints in the FMC as FLYOVER rather than bypass, ie. not to>start a turn until AFTER the aircraft has passed the>waypoint?>>Many Thanks....>>AdamAdam the only way in the PMDG aircraft (which uses an FMC modelled on the Smiths [now GE Aviation]) is to programme it in the text file for the airport. If this isnt done there then 2 things will happen:the point will be treated as flybyyou wont be able to change the waypoint characteristic through the CDU.The Airbus allows a flyover function insert, but the Smiths does not.to programme a flyover look in the text file for the aerodrome and insert text to make it look like the extract below. You will find the text file in the folder under FS9/PMDG/SIDSTAR. BUT if you are not familiar with how to manipulate these files then back it up first!"SIDSSID CODA9A RNW 19 TRK 196 UNTIL 413 FIX OVERFLY CITEE AT OR ABOVE 3000 TURN RIGHT DIRECT FIX NOGRA SPEED 220 FIX AMBLE AT OR ABOVE 8000 FIX COODA SID CORAL4 RNW 01 TRK 016 UNTIL 413 FIX OVERFLY VERRY FIX CORAL RNW 19 TRK 196 UNTIL 413 FIX OVERFLY CITEE AT OR ABOVE 3000 TURN RIGHT DIRECT FIX NOGRA SPEED 220 FIX AMBLE AT OR ABOVE 8000 FIX DEBAY FIX CORAL _Note that on the rwy19 SIDS CITEE is a flyover waypoint so you put overfly in after the fix. If thats not there it will be treated as a flyby.Hope this helps._____________________________________Rob YM002 - Compass Airlines Australia - Stretch your wings, Australia.

You can cheat with a +2 PBD or enroute WP.Best-Carl F. Avari-Cooper BAW0225http://online.vatsimindicators.net/980091/523.png| XP Pro SP3 with FS-GS System Unification | 2 x APC UPS | Coolermaster Stacker 830 SE | Asus P5E-Deluxe (X48) | e8500 @ 4gHz | Tuniq Tower 120 | EVGA 8800GT 512MB | Sony 40" Bravia XBR | 2 x 1 GB Corsair XMS2 | 500GB Seagate Barracuda 32MB SATA2 x2 (Acronis) | Corsair HX620W PS | CH Products Yoke-Pedals-Throttle Quadrant | Aerosoft 747MCP-EFIS-EICAS |

Pretty clever, Carl.The real question is what is the situation that is creating the desire for changing a fix characteristic in the navdata?

In certain departure/approach procedures you are required to overfly a certain navaid before commencing a turn/proceeding towards the next waypoint...

>In certain departure/approach procedures you are required to>overfly a certain navaid before commencing a turn/proceeding>towards the next waypoint...That interests me. Could you provide an example?Regards,

Dan:I'm mostly the village ijut- its Bill Bulfer's tip.Alex:In that case it would probably be written that way already- esp if Dan or Steve wrote it! Best-Carl F. Avari-Cooper BAW0225http://online.vatsimindicators.net/980091/523.png| XP Pro SP3 with FS-GS System Unification | 2 x APC UPS | Coolermaster Stacker 830 SE | Asus P5E-Deluxe (X48) | e8500 @ 4gHz | Tuniq Tower 120 | EVGA 8800GT 512MB | Sony 40" Bravia XBR | 2 x 1 GB Corsair XMS2 | 500GB Seagate Barracuda 32MB SATA2 x2 (Acronis) | Corsair HX620W PS | CH Products Yoke-Pedals-Throttle Quadrant | Aerosoft 747MCP-EFIS-EICAS |

The wording is important: <> if stated slightly different "direct ABC then ..." doesn't require a flyover; however, "maintain hdg 010 until ABC 2.6 DME" does and the procedure file would nail it. Also, some RNAV procedures have flyover waypoints and these are covered in the written procedures (or should be).When ATC clears you direct to a navaid followed by a course or vector they really don't expect you to fly past the navaid. In this case the flyby is assumed.

There's always the old fashioned way of flying manually with the MCP if you're doing a procedure that requires you to not turn until after the waypoint too...

Or the older old-fashioned way- disconnect all the automatics and hand fly her on raw data.I promise whe won't fall out of the sky, and if she's heavy you'll fall in love!Best-Carl F. Avari-Cooper BAW0225http://online.vatsimindicators.net/980091/523.png| XP Pro SP3 with FS-GS System Unification | 2 x APC UPS | Coolermaster Stacker 830 SE | Asus P5E-Deluxe (X48) | e8500 @ 4gHz | Tuniq Tower 120 | EVGA 8800GT 512MB | Sony 40" Bravia XBR | 2 x 1 GB Corsair XMS2 | 500GB Seagate Barracuda 32MB SATA2 x2 (Acronis) | Corsair HX620W PS | CH Products Yoke-Pedals-Throttle Quadrant | Aerosoft 747MCP-EFIS-EICAS |