This paper reports on the development of a javelin using a new process whichsimulates its characteristics before it is manufactured. For ease of design, the javelin was divided into 150 pipe elements, along the longitudinal axis. The construction of the javelin was designed by changing the mass and thickness of each element. Characteristics of moment of inertia, natural frequency, mode shape, and others were simulated. In the model of javelin which was chosen, the characteristics were the same as in ordinary javelins and it was actually manufactured. The characteristics of the developed javelin were estimated before its manufacture. Thus it was demonstrated that a javelin could be developed according to the characteristics planned by the designer. For the future, the need was suggested for estimating the indispensable characteristics for a javelin, with the aim of designing a new type of javelin.
