Hi All, A question to the pros or those who may know: What are SLPs? I have seen them occasionally on some STARs, for instance some of the STARs via BIGGIN to EGLL has them. What are they and how should one program the into the FMC properly?With thanks in advance :-waveLev

Hi, Lev.The SLP are the Speed Limit Points. Sometimes, the ATC will tell you to reduce speed with the idea to maintain the proper separation between arriving aircrafts. If the airport is very busy (as Heathrow or Madrid), the STAR may include points with a specific speed restricion. This help the controllers to establish a safe separation between planes.RegardsJose M. BarruezoSpain

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Hi Lev, An SLP or Speed Limitation Point, is used in a STAR to restrict the speed of approaching aircraft, for a variety of traffic managementon reasons.On the chart for your Biggin STAR, you will notice note 2 "cross SLP's or 3 mins before holding facility at 250 Kts IAS or less" for this STAR the 250 kt speed limit ensures you are able to safely enter the hold at Biggin, even if you are above the FL100 250Kt speed limit, the SLP will ensure you are at an acceptable speed to enter the hold at BIG. To program into the FMC simply refer to the STAR chart,and programme a fix on the BIG VOR 138 radial at 12 miles BIG/138/12, and add this to your route, then allocate a 250kt speed limitation on the route page for this entry. (See the PIC FMC manual for a more detailed description of adding fixes and waypoints to your route) Hope this helps Kev