Behaviours Of Water Entry Bullets And Cavities At High Entry Speeds

Shoji Kageyama; Tositika Usui

doi:10.1117/12.957700

27 July 1979 Behaviours Of Water Entry Bullets And Cavities At High Entry Speeds

Shoji Kageyama, Tositika Usui

Proceedings Volume 0189, 13th Intl Congress on High Speed Photography and Photonics; (1979) https://doi.org/10.1117/12.957700
Event: 13th International Congress on High Speed Photography and Photonics, 1978, Tokyo, Japan

Abstract

An experimental study of the behaviour of a bullet(caliber 7.62mm Ball M2) at an oblique water entry has been performed. The entry speed is adjusted to a value of about 300m/s. The range of entry angles is from 24 to 27 degrees. It is shown that the bullet runs stably only when the bullet travels broadsiding with the nose-down and during this period the trajectory can be fitted by an ana-lytical expression. After this phase the cavity collapses near the lowest region of the bullet trajectory and then the bullet goes up.

Citation Download Citation

Shoji Kageyama and Tositika Usui "Behaviours Of Water Entry Bullets And Cavities At High Entry Speeds", Proc. SPIE 0189, 13th Intl Congress on High Speed Photography and Photonics, (27 July 1979); https://doi.org/10.1117/12.957700

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