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Old 25th Feb 2009, 11:57
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dragchute
 
Join Date: Sep 1999
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CFIT means Head in Sand!

Interesting to note that the ATSB web site cites: “The FAA examined 44 CFIT accidents that occurred between 1985 and 1994 in the US to aircraft with six to 10 passenger seats. Of the 44 aircraft, 11 were powered by turbojets and 33 were powered by turboprops. None of the aircraft were fitted with a GPWS system. Computer modelling techniques used to analyse the data showed that had GPWS been fitted, 33 accidents could have been prevented; had enhanced GPWS been fitted, 42 accidents could have been prevented.” That is a lot of dead people who probably valued their lives at more than $23K!

As avionics become more advanced and affordable why shouldn’t we take advantage of the improved safety offered? The TAWS-B+ includes display as well as aural warnings. The ‘visuals’ provide the first line of defence. Range it down to 5 – 10 miles for take-off and approach / landing then day or night, regardless of the weather, you are provided with a safe flight path if handicapped by engine failure. Further, the high and low peak elevations are also displayed along with conflicting terrain. Just steer away from the red!

TAWS-B provides five warning modes: terrain clearance, imminent impact, premature descent alert, excessive sink rate and negative climb after take-off. Even blind Freddy would be a survivor!

I’m sure operators would rather upgrade the fleet with low cost safety devices than confront the loss and ongoing litigation arising from just one fatal accident.
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