1949 was a poor year for Wales , and in that year 's Championship , although scoring a try in the final game against France , Jones let his opposite wing in for the decisive score . That try relegated Wales to last place in the league and gave them the wooden spoon . The next season saw an incredible turn-around in Welsh fortunes which made Jones 's world-class reputation . In the opening game of the Championship , Wales achieved a rare victory over England at Twickenham and in the next game against Scotland , Jones scored a try in another win . On 11 March at Ravenhill , Belfast Jones was again on the score sheet as Wales beat Ireland to win their eighth Triple Crown . Though celebrations were short lived when a day later , a plane carrying jubilant supporters back to Wales crashed at Llandow , killing eighty . It was therefore a somber occasion when Wales faced France on 25 March at the Cardiff Arms Park . The match itself was a walkover for Wales , with Jones scoring two of the four tries in a 21 – 0 score line . This was the first time Wales had won the Grand Slam since 1911
Llandow
Llandow air disaster
Ken Jones (rugby union, born 1921)