The hill size (HS) is the most important measurement for the size of a ski jumping hill. It is defined as the distance between the takeoff table and the end of the landing area, which is called hill size point. It is not measured as a straight line but on the surface of the hill.[1] A typical slope inclination at hill size distance is 32° for normal hills, 31° for large hills, and 28° for ski flying hills.[2]
In 2004, the hill size became the official measurement for the size of hills, replacing the construction point (K-point, formerly known as the critical point), which however remains the basis for issuing points.[3]
The world's largest hills are Vikersundbakken in Vikersund, Norway and Letalnica Bratov Gorišek in Planica, Slovenia with hill size of 240 meters. The hills normally mark the hill size physically with a horizontal line across the hill.
- ^ Hans-Heini Gasser (FIS): Jumping Hills: Construction Norm 2018 (PDF), p. 4 (abbreviations), p. 5 (figure). Hill size is the distance between T (takeoff) and L (end of the landing area), measured at the surface of the hill.
- ^ Planica i Vikersund z HS240. FIS ujednolica przepisy o rozmiarach obiektów – Skijumping.pl
- ^ "Hoppbakkene bort fra K-punkt til HS-punkt" (in Norwegian). Norwegian News Agency. 29 June 2004.