Commonly called Juteki by the Japanese, this weapon officially was designated Hachikyu Shiki Jutekidarto, or 1189 Model Heavy Grenade Discharger, the term “heavy” being justified by the powerful 1-pound, 12-ounce high explosive shell it was designed to fire, although it also fired the standard Model 91 fragmentation grenade.
To the American Marines and soldiers who first encountered this weapon and others of its kind in combat they were known as “knee mortars,” likely so named because they generally were fired from a kneeling position. Typically, the discharger’s concave baseplate was pressed firmly into the surface of the ground by the firer’s foot to support the heavy recoil of the fired shell, but unfortunately the term “knee mortar” suggested to some untutored captors of these weapons that they were to be fired with the baseplate resting against the knee or thigh. When a Marine fired one of these dischargers from his thigh and broke his upper leg bone, efforts were swiftly undertaken in the field to educate all combat troops in the safe and proper handling of these very useful weapons.
The Model 89 (1929) 50mm Heavy Grenade Discharger is a muzzle-loaded, high-angle-of-fire weapon which weighs 10-1/4 pounds and is 24 inches in overall length. Its design is compact and simple. The discharger has three major components: the rifled barrel, the supporting barrel pedestal with firing mechanism, and the base plate. Operation of the Model 89 was easy and straightforward, and with practice its user could deliver accurate fire registered quickly on target.
Encountered in all major battles in the Pacific War, the Model 89 Grenade Discharger was an uncomplicated, very portable, and highly efficient weapon operated easily by one man. It was carried in a cloth or leather case with a sling, and its one-piece construction allowed it to be brought into action very quickly. This grenade discharger had the advantage over most mortars in that it could be aimed and fired mechanically after a projectile had been placed in the barrel, projectile firing not being dependent upon dropping down the barrel against a stationary firing pin as with most mortars, where barrel fouling sometimes caused dangerous hangfires. Although an instantaneous fuze employed on the Model 89 high explosive shell restricted this shell’s use to open areas, the Model 91 fragmentation grenade with its seven-second fuze made this discharger effective in a jungle or forest setting, with complete safety for the user from premature detonation of projectiles by overhanging foliage. Smoke and signal shells, and an incendiary grenade, were special types of ammunition used with this versatile and effective weapon which won the respect of all who came to know it.—Edwin F. Libby
December and the Final Stages
On 7 December, one year after the Japanese attack on Pearl Harbor, General Vandegrift sent a message to all men under his command in the Guadalcanal area thanking them for their courage and steadfastness, commending particularly the pilots and “all who labored and sweated within the lines in all manner of prodigious and vital tasks.” He reminded them all that their “unbelievable achievements had made ‘Guadalcanal’ a synonym for death and disaster in the language of our enemy.” On 9 December, he handed over his command to General Patch and flew out to Australia at the same time the first elements of the 5th Marines were boarding ship. The 1st, 11th, and 7th Marines would soon follow together with all the division’s supporting units. The men who were leaving were thin, tired, hollow-eyed, and apathetic; they were young men who had grown old in four months time. They left behind 681 dead in the island’s cemetery.
As he tells it, “Too Many, Too Close, Too Long,” is Donald L. Dickson’s portrait of one of the “little guys, just plain worn out. His stamina and his spirit stretched beyond human endurance. He has had no real sleep for a long time.... And he probably hasn’t stopped ducking and fighting long enough to discover that he has malaria. He is going to discover it now, however. He is through.”
Captain Donald L. Dickson, USMCR
