Cessna AFM Performance
XL has supplement 49 and XLS supplement 30. These are both calculated using a 3.5 degree gs, rather than 3, for use by JAR/CFR operators which is why the figures don't compare to the FAA x 1.67. All have a dispatch planning supplement that uses the 3.5 degree approach angle however the start of these supplements it states that it must not be used for actual landing performance. Cessna no longer produce the additional supplements, so the XLS+ uses standard FAA x 1.67, and has a much more restrictive landing performance than the other variants.