Unguided rocket projectile 9M28D

The main structural elements of the projectile are: mechanical remote tube TM-120, ignition head part 9H511, missile part 9M28 and insert. The projectile is designed for delivery and subsequent throwing of agitation materials in the enemy's territory. The projectile can be fired using 9P138 (9K55 Grad-1), 9P139 (9K55-1 Grad-2), BM-21 (M-21 Field Rocket System), BM-21V (M-21V Field Rocket System), 9A51 (9K59 Prima) combat vehicles. Powder brand of solid fuel charge - 9X168.

1 - projectile index; 2 - distinctive sign of the leaflet; 3 - index of the head part; 4 - equipment cipher; 5 - lot number of the unloaded head parts, year of manufacture, number (cipher) of the enterprise; 6 - lot number of the rocket part body, year of manufacture, number (cipher) of the mechanical enterprise; 7 - lot number of the projectile, year of assembly, number (cipher) of the projectile enterprise (base), which assembled; 8 - index of the rocket part; 9 - powder charge index; 10 - powder lot number, year of manufacture, number (cipher) of the enterprise which has made a powder (in case of manufacture of a powder charge and a powder at the different enterprises); 11 - powder lot number, year of manufacture, number (cipher) of the enterprise which has made a powder charge; 12 - Electric ignition index (9X317) or pyroelectron 9X264; 13 - lot number of assembled rocket parts, year of assembly, number (cipher) of the enterprise (base), which assembled; 14 - electric test mark and distinctive marking.

General characteristics of NURS 9M28D
Header type campaigning
Fuse type mechanical remote tube TM-120
Missile part marking 9М28
Weight and linear characteristics NURS 9M28D
Caliber, mm 122
The length of the projectile with a rolling tube, mm: 2280
Weight of projectile with rolling tube, kg 52,3
Weight of remote tube TM-120, kg 0,97
Weight of the head part, kg 17
Mass of gunpowder charge with ignition, kg 14,19
Weight of the bouncing charge of the head part, kg 0,142
Mass of agitation literature, kg not more than 1,5
Temperature range of warfare, ºC between -50 and +45
The weight of the container with the projectile, kg 78
Overall dimensions of the container 9Y688:  
length 2236
width 293
altitude 250
Technical specifications NURS 9M28D
Maximum projectile range, m 15 420
Flying range with large brake ring, m between 9500 and 1650
Flying range with small brake ring, m between 12290 and 9500
Highest projectile speed under normal conditions, m/s 587
Rocket unit operating time, s 1,6

Боевая машина 9П138. Техническое описание и инструкция по эксплуатации. Часть III. Боеприпасы 9П138 ТО2. Книга 2 Боевые машины 9П139, БМ-21, 9П125, 9А51. Боеприпасы. Воениздат, М.: 1986. – С. 4,5,15,20.