PPRuNe Forums - View Single Post - Which brands have GS mini function ?
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Old 8th Aug 2023, 11:22
  #62 (permalink)  
vilas
 
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I think the discussion is not taking all factors in consideration together. GSmini is Airbus way of handling change/variation of wind speed on approach. It deals with real time gust. It requires two things, activation to approach phase and managed speed. First is always done. Second has a possibility of going select speed but without GSmini. Now let's say you were flying a Boeing or A310 VLS 135kt and surface wind 20kt gusting to 30kt. So you will be flying Vapp of 155kts(10+10). You can' only accept speed restriction to fly beyond 155kts. It doesn't deal with actual gust on approach but at surface. So if you don't want to use GS mini then 155kts is minimum you can fly and not below. With the non Airbus way you could be flying the high Vapp correction even without aircraft facing that gust aloft. If at threshold the gust is not there then touchdown will be at higher speed because gust correction needs to be maintained. While GSmini will try to reduce the speed to Vapp on it's own. Yes! Conventional method is still used but can not be considered smarter. GSmini is new realistic way of dealing with actual winds faced all the way down. Since Neos deceleration is less so they only use 33% of wind experienced to arrive at the threshold at lesser speed.
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