Which means that just because you think your aircraft is particularly quiet, you shouldn’t think you don’t have to do them. These are a sort of “fits all” procedures. The amount of noise reduction gained is going to vary a lot depending on aircraft type.There are a few pointers to consider to as well… Well, you’d be surprised how many people don’t entirely ‘ get’ NABTs. ![]() You take-off, reduce your thrust at 800 feet (that’s above ground level!) then climb at a speed somewhere between V2+10 and V2+20 to 3000 feet, at which point you accelerate to your en-route climb speed.Īccelerate smoothly is what it actually says, and as you do it, retract them flaps and slats and any other dangling bits you have hanging out. NADP IĪlso known as the “close in” procedure, this keeps folk living directly next to the airport, and birds and things happy. They don’t exist anymore.Īctually, just checked and some random airports do still use these, but most use NADP I or NADP II so that’s what we’re going to talk about. The Takeoff onesįor folk who’ve been around a while, you might remember TKOF Proc A and B. A noise abatement routing just doesn’t fly you low over sensitive areas. Noise abatement approaches generally say stuff like “try and do a CDA” or “don’t fly level for more than 2 nm” or “don’t fly in with all your flaps dangling out from 10,000”.ĮGLL/London Heathrow has a particularly exciting bunch of rules for the arrivals and approaches (probably because English people really like to complain a lot) if you do want to check these out. ![]() These are fairly boring though, and by boring I really mean fairly obvious. You get noise abatement routings, and noise abatement approaches. Where do we use noise abatement procedures?Ĭontrary to popular belief these aren’t just for departure. Sometimes, folk who live in and around airport areas get cranky because, well, airplanes are quite noisy. So airports have some methods in place to help reduce complaints – noise sensitive areas, decibel monitoring, night flight restrictions, noise level regulations, and the thing we’re going to look at in this post – noise abatement procedures.
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