Declassified UFO / UAP Document
TAKE 2 OF 2 — HYPERVELOCITY TEST TECHNIQUES DISCUSSED
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AI-Generated Summary
This intelligence cable details technical constraints in hypervelocity testing, specifically regarding shock wave management and projectile fragmentation. It emphasizes the importance of launch stage flatness and projectile-to-cartridge diameter ratios.
This document is an intelligence cable transmitted by FBIS Brussels on February 15, 1995. It serves as the second part of a two-part report regarding hypervelocity test techniques originating from French sources. The text provides a technical overview of the mechanics involved in hypervelocity testing. It highlights that the flatness of each intermediate launch stage is critical for the successful acceleration of the final stage. The document warns that any divergence in the shock wave at any level leads to a reduction in the energy transmitted to the projectile, which in turn increases the risk of the projectile fragmenting. To mitigate this risk, the document notes that the diameter of the projectile is restricted to a specific fraction of the cartridge diameter, with the exact ratio depending on the materials used. The report concludes by suggesting that the combination of specific cartridge sizes with variable projectile thicknesses and diameters offers a viable path for further experimentation.
THE FLATNESS OF EACH INTERMEDIATE LAUNCH STAGE PLAYS A VITAL ROLE IN ACCELERATING THE LAST STAGE. ANY DIVERGENCE OF THE SHOCK WAVE, AT ANY LEVEL, MEANS A CORRESPONDING DECREASE IN ENERGY TRANSMITED TO THE PROJECTILE, WHILE INCREASING THE RISK OF FRAGMENTING THE PROJECTILE RIGHT FROM THE BEGINNING.
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Official Assessment
The document discusses technical aspects of hypervelocity testing, specifically noting that the flatness of intermediate launch stages plays a vital role in accelerating the last stage. It explains that any divergence of the shock wave results in a decrease in energy transmitted to the projectile, increasing the risk of fragmentation. Consequently, the projectile diameter is limited to a fraction of the cartridge diameter.