Claim: Planica 1950 was an International ski flying week, a winter sport derived from ski jumping, and during the training 15 participants attended from different countries,  the countries with the most representatives on the training were Yugoslavia and Norway.
Evidence: Planica 1950 was an International ski flying week with four competitions held from 12—19 March 1950 in Planica, PR Slovenia, FPR Yugoslavia. Rudi Finžgar Thorleif Schjelderup Bine Rogelj Ivo Razboršek Aldo Trivella Grommer Sverre Kronvold Sverre Stenersen Janez Polda Karel Klančnik Luigi Pennacchio Bruno Da Col Carlo De Lorenzi Slaatsveen Hoysaeter Yugoslavia Norway Yugoslavia Yugoslavia Italy Austria Norway Norway Yugoslavia Yugoslavia Italy Italy Italy Norway Norway Ski flying is a winter sport discipline derived from ski jumping, in which much greater distances can be achieved.