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Old 31st Mar 2015, 02:35
  #157 (permalink)  
7478ti
 
Join Date: Sep 2011
Location: Mercer Island WA
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GLS RNP and CYHZ and Nepal

@aterpster (WR?) It doesn't matter even if it was RNP AR in Nepal. The point sticks. RNP helps as a start to get one effectively to the best runway, but it only gets you down the FAS to a relatively low DA. However, when RNP is is used with GLS, as well as use of full autoflight, FMGC, or HUD (LAND3 or AIII modes), with a vertical and lateral path to the TDZ, these serious landing events will virtually stop. Yes, pilots can always save the day, since the days of the four course range, back to when Ed B, and L DeC, and the All-WX-Flying Committee were still fretting about Tom Goldsmith and the Martin at KIPT... but there is no need to do any of that any more. It is time to take stock, bit the bullet, dump these obsolete approach types, and start to expeditiously move to 100% RNP and GLS. It is vastly better, less expensive, and you wouldn't even need the ALSF-I/II or MALSRs any more. As to the MD series getting RNP, they already could have low RNP now, with systems like the HT-9100, if they'd just invest the money instead in upgrading those systems wisely, and not waste it on useless things like obsolete WAAS/LPV, or FAA's over-specified and still dysfunctional 91.227/DO-260 flawed ADS-B, at least until and unless it is re-specified with sensible NIC and NAC.

Last edited by 7478ti; 31st Mar 2015 at 03:04.
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