RDH
Thread Starter
Joined: Feb 2010
Posts: 162
Likes: 0
From: Slovakia
RDH
All information on an aeronautical chart is required and superfluous information is to be avoided.
So now a days, do pilots still use the RDH that is annotated on an ILS chart or is this now superfluous?
As a procedure designer we quite often use this value in the design of the procedure but does a pilot require it?
So now a days, do pilots still use the RDH that is annotated on an ILS chart or is this now superfluous?
As a procedure designer we quite often use this value in the design of the procedure but does a pilot require it?
Only half a speed-brake
Joined: Apr 2003
Posts: 4,459
Likes: 136
From: Commuting not home
rennaps, why it needs to be in the AIP is rather clear.
as a pilot I would be happy with an asterisk/bullet note in case the value was more than 5% different from 50'.
Flown with Jeppesen, Navtech and Lido. Do you think there is something overly cluttered with their design?
as a pilot I would be happy with an asterisk/bullet note in case the value was more than 5% different from 50'.
Flown with Jeppesen, Navtech and Lido. Do you think there is something overly cluttered with their design?
Joined: Feb 2019
Posts: 431
Likes: 0
From: shiny side up
In the procedure design, it is assumed that there is 5.8m from the ILS ooglidepath to the lowest part of the wheel path. I wont even consider eye path i or not coincident with VASI.
Currently, with the larger aircraft, and the stretched versions, this difference is more than 5.8m (ie A330/340 is 8.1m, A350-900 is also 8.1m)
When looking at operations, to assure obstacle clearance and aiming point, it is important to know the RDH, and the foundation, so that the operator calculations of ARDH and have sufficient clearance at the threshold, especially for CAT II and III procedures.
Currently, with the larger aircraft, and the stretched versions, this difference is more than 5.8m (ie A330/340 is 8.1m, A350-900 is also 8.1m)
When looking at operations, to assure obstacle clearance and aiming point, it is important to know the RDH, and the foundation, so that the operator calculations of ARDH and have sufficient clearance at the threshold, especially for CAT II and III procedures.
Last edited by Smythe; 4th June 2019 at 03:57.
