View Single Post
  #1  
Old August 7th 14, 04:49 PM posted to rec.aviation.soaring
Stats Watcher
external usenet poster
 
Posts: 6
Default Another mid-air (UK)

At 15:04 07 August 2014, jfitch wrote:

Isn't the Flarm GPS WAAS corrected? The WAAS standard of

performance is
1.6M nominal horizontal (95%). When the NDGPS system is

functional (and GPS
engines take advantage of it) this will be reduced to 15 cm.


Not in Europe as WAAS is US only. A search of the Powerflarm
website returned 0 (zero) occurrences of the term 'WAAS'. So it
seems unlikley.... Same result for NDGPS, so that seems unlikely
too.. If someone finds something different I will obviously be wrong
but until that point it's still +-16m (ie a whole wingspan) at 99%
confidence