A gas turbine engine combustor swirler has vanes with a spanwise chord length distribution providing a desired swirl distribution. In one preferred arrangement the present invention provides a swirler vane pack comprising an array of vanes and means holding the vanes, wherein each of the vanes has first (120) and second (114) ends with a span therebetween and a spanwise changing section. Preferably the vanes are unitarily formed with the means and the second end (114) has a chord (S 1TIP ) that is 25-75% of a chord (S 1ROOT ) of the first end (120).
