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Old 19th Apr 2018, 23:42
  #49 (permalink)  
werbil
 
Join Date: Feb 2007
Location: Darwin, Australia
Age: 53
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Originally Posted by VFR-Seek and Destroy
Will the Garmin give the option of a LNAV+V approach when the pilot is selecting an approach if it not in an area with a SBAS?
Not based in Oz but does Oz have a SBAS?
Australia does have a trail SBAS operational, but TSO'd equipment is programmed to prevent it's use.

The GTN 750/650 normally gives the +V guidance in Oz, the exception seems to be some runways where there is a LNAV/VNAV approach.

Agree that 3D advisory guidance would most likely have prevented Lockhart River.

Surprised that no one has commented on the other nifty feature 'visual approaches' that came with the same update for the GTN 750/650. It gives you 3D advisory guidance to any runway in the database. Obviously it doesn't ensure terrain clearance, but it does give you a nice three degree slope to 50' above the threshold.

And for anyone that's wondering, from observation the calculated glide path on both +V and visual approaches is accurate enough to show the affects of temperature at ISA +15 on barometric altitude.
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