November 11, 200421 yr Have I got this right:VNAV ALT is a "holding" altitude. For e.g., if I'm climbing to FL330, and I am given clearance to FL270 only, if I don't get cleared beyond that on the way up, I dial 270 into the ALT window and when I get there, VNAV levels me off into VNAV ALT. When I am cleared to FL330, I dial in FL330 to the FMC, and hit the FMC to resume climb.It's the reverse for descents.Is this correct?Jonathan Jonathan Sacks Dell XPS Gen 4, Pentium IV Northwood extreme 3.8Ghz, 3Ghz RAM, eVGA 7900 GTO, 12 GoFlight modules plus MCP-PRO AP and EFIS, GF pedestal, CH rudder pedals, CH throttle quadrant, 42" LG LED, 24" DELL LCD, Windows XP, FS2004, FSUIPC 3.96 FS Autostart 1.1 (Build 11), FS Navigator 4.6, UT, FE, GE, REX, PMDG, Level-D, PSS, etc.
November 11, 200421 yr >>Have I got this right:>>VNAV ALT is a "holding" altitude.Yes>For e.g., if I'm climbing>to FL330, and I am given clearance to FL270 only, if I don't>get cleared beyond that on the way up, I dial 270 into the ALT>window and when I get there, VNAV levels me off into VNAV ALT.Yes> When I am cleared to FL330, I dial in FL330 to the FMC, and>hit the FMC to resume climb.No, you dial 33000 in the MCP, and push the ALT INTV.
November 11, 200421 yr Author OK, Claudio, that's great, thanks for posting.Jonathan Jonathan Sacks Dell XPS Gen 4, Pentium IV Northwood extreme 3.8Ghz, 3Ghz RAM, eVGA 7900 GTO, 12 GoFlight modules plus MCP-PRO AP and EFIS, GF pedestal, CH rudder pedals, CH throttle quadrant, 42" LG LED, 24" DELL LCD, Windows XP, FS2004, FSUIPC 3.96 FS Autostart 1.1 (Build 11), FS Navigator 4.6, UT, FE, GE, REX, PMDG, Level-D, PSS, etc.
November 11, 200421 yr >>OK, Claudio, that's great, thanks for posting.>>Jonathanone other use for VNAV ALT - when you've got altitude constraints in the FMC (set as part of a DP or STAR, or manually entered in the LEG page), hitting VNAV ALT will ERASE the next active constraint. This can be useful if ATC clears you to an altitude above or below your constraint and you're told to disregard the constraint.
November 11, 200421 yr Author OK, Tim, thanks for this interesting follow-up. I am studying more on VNAV right now...!JS Jonathan Sacks Dell XPS Gen 4, Pentium IV Northwood extreme 3.8Ghz, 3Ghz RAM, eVGA 7900 GTO, 12 GoFlight modules plus MCP-PRO AP and EFIS, GF pedestal, CH rudder pedals, CH throttle quadrant, 42" LG LED, 24" DELL LCD, Windows XP, FS2004, FSUIPC 3.96 FS Autostart 1.1 (Build 11), FS Navigator 4.6, UT, FE, GE, REX, PMDG, Level-D, PSS, etc.
November 11, 200421 yr Don't ever try to lower your CRZ ALT with ALT INTV though or you get an early descent...Best Wishes,[h4]Randy J. Smith[/h4]http://www.rawbw.com/~bdoolin/shinault/southparkcartmad.gif[h3]I WANT MY 747![/h3]Caution! Not a real pilot, but do play one on TV ;-) Randy J Smith
November 11, 200421 yr Author Yes, Randy, appreciate the reminder. I recall my recent flight to Nice (LFMN) in which that happened when I wanted to go to a cruise alt of 380 from 410 and I went into a DES mode.I am printing and saving these forum threads for my PMDG manual. I've covered about 85% of the NG so far in my study time, and VNAV is most of my FS "homework" these days!Jonathan Jonathan Sacks Dell XPS Gen 4, Pentium IV Northwood extreme 3.8Ghz, 3Ghz RAM, eVGA 7900 GTO, 12 GoFlight modules plus MCP-PRO AP and EFIS, GF pedestal, CH rudder pedals, CH throttle quadrant, 42" LG LED, 24" DELL LCD, Windows XP, FS2004, FSUIPC 3.96 FS Autostart 1.1 (Build 11), FS Navigator 4.6, UT, FE, GE, REX, PMDG, Level-D, PSS, etc.
Create an account or sign in to comment