Throws innovations 4-10 were as follows:
My number 3 innovation is the new style javelin. In 1986 the sport of javelin was changed forever. Before this time, a javelin was used which flew tremendously far (World Record of 104.80 m (343’10’’) held by Uwe Hohn), but was associated with numerous negative incidents. Issues were arising due to the distance the javelin traveled and the way it was landing. The javelin was getting perilously close to reaching the track on the other end of the stadium, making it dangerous to throw at the same time as track events occurred. Furthermore, due to the center of gravity location of the old javelin, it was typical for the javelin to land flat, and not stick into the ground. This made obtaining accurate distance marks nearly impossible for the judges.
The solution? The IAAF would keep the weight the same but tweak the location of the centre of gravity of the javelin (the centre of gravity was moved forward 4 cm), such that the flight path of the javelin would be changed forever. The new javelin does travel a shorter distance than the old javelin (World record of 98.48 m (323’1’’) held by Jen Zelezny), however, the tip now sticks into the ground instead of landing and skipping along the grass. This has allowed for the javelin to maintain its location in the stadium, where it can be safely performed during other events. Furthermore, with the tip of the javelin now consistently sticking into the ground, judges can record accurate distances. Due to the drastic change to the throwing implement enacted by the IAAF, the new men’s javelin is the number 3 throwing innovation.