PPRuNe Forums - View Single Post - 757/767 Decision Height Selector

5th Jan 2009, 11:29

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Spanner Turner

Join Date: May 2005

Location: Standing at P37

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My 767 Maint Manual states that when you set the DH below 0ft, the display for DH disappears altogether. This just leaves only the actual RA readout in ft at the top right corner.

I'm not a driver, so can only guess that it gives you the option of removing this piece of information when it's not applicable such as when you are hand flying/landing in VFR conditions!

Quote:

Setting -20 will not give you the Auto call-outs which do not apply to a No DH approach.

Don't think so my friend. Callouts ( "Fifty", "Thirty", "Ten" ) are spoken on every approach. Never inhibited. These are generated by the Ground Prox Warning Computer - via inputs from the Radio Altimeters.

Last edited by Spanner Turner; 5th Jan 2009 at 11:58.

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