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Old 20th April 2009 | 17:57
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VinRouge
 
Joined: Jul 2007
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From: Germany
Post Civvie IFR Chart Safety Altitude

All, hope you can help with me with this.

Rather than create a new thread, I found this one to carry on the discussion regarding safety altitude.

Can anyone confirm the following:

1) Do civilian Approach Plates (jeppesen, Navtech and also US DOD plates in particular here) use 1000' or 2000' on elevations to generate safety altitude for terrain above 3000' AMSL? Having read JAR-OPS, it appears 2000' is only added for terrain above 6000'? Is this the case?

2) Which regs do Civvy plate publishers use to create minima? I am guesing JAR OPS and the American equivalent.

THanks in Advance!

Edit, just found this in PANS-OPS

8.1 GENERAL
8.1.1 Minimum sector altitudes shall be established for each aerodrome where instrument approach procedures
have been established. Each minimum sector altitude shall be calculated by:
a) taking the highest elevation in the sector concerned;
b) adding a clearance of at least 300 m (1 000 ft); and
c) rounding the resulting value up to the next higher 50-m or 100-ft increment, as appropriate.
8.1.2 If the difference between sector altitudes is insignificant (i.e. in the order of 100 m or 300 ft as appropriate)
a minimum altitude applicable to all sectors may be established.
8.1.3 A minimum altitude shall apply within a radius of 46 km (25 NM) of the homing facility on which the
instrument approach is based. The minimum obstacle clearance when flying over mountainous areas should be
increased by as much as 300 m (1 000 ft).
Sounds to me as if plates manufactured according to PANS-OPS only give you 1000' separation, in contravention of JAR-OPS which state 2000' to be added for terrain above 6000'!!!

Now confused

Last edited by VinRouge; 20th April 2009 at 18:21.
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