High expl projectile

Heineiyaku. Trinitrophenetole (TNPhnt) or Ethyl Picrate, C2H5.0.C6H2(N02)3 mw 257.16, N 16.34% yellowish crysts, mp 78 less powerful, less brisant and less sensitive to impact than TNAnisole called Type 91 Expl by the Japanese Navy. Deton Vel of TNPhnt 6880m/sec vs 7640 for TNAns [Blatt, OSRD Rept 2014 (1944)] Accdg to Ref 3, p 321, Heineiyaku was used as an alternate HE Filler (instead of TNT) in Type 90 7-cm (75-mm) HE Long-Pointed Projectile and in Type 94 7-cm (75-mm) High Explosive Projectile (Not listed in Ref 1)... 

At the present time (1981) there is one expl that uses wax as the vehicle. This compn, covered by Specification MIL-C-60051, consists of 86/14 RDX/wax (Ref 89). It is loaded by a puddling technique in combination with pellets of Compn A-3, and is used as the main charge of a 165mm high capacity projectile... 

On July 10, 1926, there occurred a series of expins on the Lake Denmark Ammunition Depot of the United States Navy (about 3Vi miles from Dover, NJ). This Depot comprised an area of 461 acres of land, partly overgrown by trees and brush. It included approx 160 buildings, 44 of which were used for the storage of high explosives, smokeless powder, projectiles, Black Powder, the remainder being store houses, industrial buildings which.did not contain expls, and dwellings... 

As this expl has a high mp and is highly sensitive to shock, additives are mixed with it to lower its mp and sensitivity. It is suitable, when in such mixts, for loading in STET projectiles. It also can be used in AN mining expls as well as in plastic expls (Refs 4,5 % 6)... 

Projectiles with such expl systems could be useful as artificial meteors since they would be luminous in the high vacuums of interplanetary space (Ref 2) (See also Boron Hydrides, Boronites,... 

The object of the Susan Test is to compare the relative sensitivity of propints and expls under conditions of impact. It is performed by impacting a confined specimen at high velocities onto a steel plate. The driver is a 3-inch gun which imparts velocities ranging from 30 to 40m/s to the projectile. The results in terms of the kinetic energy of the projectile required for initiation are only of empirical value for reasons stated above (Ref 18, pp 2—20)... 

---