Hammer throwing facility Instructions
Hammer Throwing Facility Instructions
Layout
The Hammer Throw facility includes a throwing circle,a protective cage and a landing sector. It is usually combined with the Discus Throw facility.Section 2.4.1 applies.
Throwing Circle
For the Hammer Throw circle,Sections 2.4 and 2.4.1.2 shall apply in general with the following exceptions:
The diameter of the throwing circle is 2.135m±0.005mFor a combined Discus and Hammer Throw facility, the diameter of the throwing circle is 2.50m± 0.005m.It is reduced in size to 2.135m +0.005m for Hammer Throw by inserting a 0.1825m wide and 0.02m hiah rina of suitable construction. The inserted rina must be fixed into the throwina circle such that it is level with the outer ring and constitutes no risk to the athletes. The inside rim of the insert shall be painted white.The top of the insert should be co oured other than white and have a non-sip finish.f the top of the insert is coloured white it is necessary to extend the 0.05m wide white lines defining the rear portion of the circles in a distinctive colour across the insert.For the throwing circle for Hammer Throw, a Shot Put circle (without stop board may also be used if it is furnished with a suitable protective cage in accordance with Section 2.4.2.3.
The surface finish to the concrete circle should be slightly smoother for hammer throwing than for discus throwing. When a circle is used for both discus and hammer throwing a compromise finish is required.The advice of an experienced throws coach and/or an elite hammer thrower might be sought in obtaining an appropriate surface finish.
Safety Cage
It is essential that the Hammer Throw protection cage installed conforms to the requirements of Chapter 6 and is properly erected and operated.The necessary eauipment for erectina and anchoring the protective enclosure should be insta eo together with the throwing circle.
Landing Sector
For the Hammer Throw landing sectorSection 2.4 shall apply in general with the following exceptions:
The length of the landing sector for international competitions shall be 90m.Its angle of 34.92 degrees will be attained if the two boundary lines at a distance of 90m are spaced 54m apart. The marking of the sector lines shall extend to a distance appropriate to the competition.
Safety
Section 2.4.1.5 shall also apply to the safety of the Hammer Throw facility.
A hammer cage should not be located near the 200m start or the finish line as some hammers are likely to land on the track.
Suitability for Competition and Official Acceptance
Hammer Throw facilities must conform to the specifications. This can be established when inspecting the 400m Standard Track.
