Rnav Approaches

[Joers182]

Hey All,

I was doing an RNAV approach in the 733 the other day and it suddenly occurred to me, if I remember correctly the 738 NGX draws a 'fake' glide slope on the PFD when you hit the APP button on the MCP during an RNAV approach. Does the 733 behave in the same way?

 

Joe

[mokny]

There are no "real" GPS approaches in the 733 as in the NG. Use LNAV and VNAV/VS/FLCH to fly the vertical app according the charts. Remember that you can not set the GA Altitude in that case.

[Joers182]

21 minutes ago, Cosmopilot said:

There are no "real" GPS approaches in the 733 as in the NG. Use LNAV and VNAV/VS/FLCH to fly the vertical app according the charts. Remember that you can not set the GA Altitude in that case.

Thanks for clearing that up! Such a wealth of information about operating this aircraft. I'm trying to take it all in

[cmbaviator]

@ OP

When performing a RNAV approach, set a speed constraint at FAF : Vref+5kts+1-3kts depending on the wind. You really want to do a stabilized app. So be sure to be at Vapp 1Nm before FAF (gear down and Flaps30/40). then check your approach chart, it should give you the V/S depedning on speed, at 0.2 NM, set the V/S accordingly to the value given by the chart. then check the VDEV indication on the EHSI and change the V/S accordingly but don't try to be pintpoint accurate on the middle and check the PAPI/VASI lights also. when AP/AT has correctly trimmed the aircraft and trhat the N1 is stable, disengage AP/AT and fly manually