ILS obstacle clearance
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ILS obstacle clearance
According to my Jepp ATC p215;
"The ILS obstacle clearance surfaces assume that the pilot does not deviate from the centreline more than half a scale deflection after established on track."
It then goes on to say thereafter to maintain the LLZ within half a course sector deflection once established.
Does this translate as "half a dot" or is it half the displayed scale.
I'd appreciate any input on this. rgds
"The ILS obstacle clearance surfaces assume that the pilot does not deviate from the centreline more than half a scale deflection after established on track."
It then goes on to say thereafter to maintain the LLZ within half a course sector deflection once established.
Does this translate as "half a dot" or is it half the displayed scale.
I'd appreciate any input on this. rgds
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Jepp Term states that a missed approach must be executed . . [quote]during the final segment of an instrument approach, the aircraft is not maintained within the applicable navigational tolerance for the aid in use<hr></blockquote>
The navigational tolerance is half scale for LLZ/ILS.
Here are some ILS cross sections (these are TERPS based)
[ 18 February 2002: Message edited by: Zeke ]</p>
The navigational tolerance is half scale for LLZ/ILS.
Here are some ILS cross sections (these are TERPS based)
[ 18 February 2002: Message edited by: Zeke ]</p>
