(Side and front view)
In the early 1950s, the U.S. armed forces made demands on the creation of new infantry weapons with a fragmentation warhead that can bridge the gap between hand grenades and mortars.
In the first half of the 1950s, Picatinny Arsenal (Picatinny Armory) was developed by 40-mm mortar with aluminum sleeve length of 46 mm. After that, the program SPIW, started the project «NIBLICK», the essence of which was to create a grenade under a new 40-mm mortar (grenade).
By 1960, the result of this project was the M79 grenade launcher, which was adopted by the United States and has been successfully used during the Vietnam War. But the main disadvantage of this model is its singly charged, which is not allowed to conduct a more intensive fire on the enemy (practical rate depended on the rate of recharge), while still required to equip rocket launcher and an additional weapon for self-defense.
As a result, even before the end of the program XM79 (for grenade M79) engineers Arsenal Springfield (Springfield Armory) were launched new design program to create a multiply-charged 40-mm grenade launcher, and had indices T148E1 T148E2.
When creating a new
multiply charged grenade was taken as the basis of experience models S-5 and XM79. Features weapons theoretically allowed to develop on this basis, multiply charged decent option that meets the requirements of the military. Using aluminum allows a relatively lightweight construction, in general similar to the samples "donor." The result was a little-known but interesting enough on its design features a sample under the same index T148E1.
Gun XIX century
Built on a "harmonica»
new experimental rocket launcher was built on a "harmonica" (layout with a moving shop), the construction of which was used in the XIX century pistols and machine guns such as FIAT-Revelli M1914. Its essence was that after the shot, horizontally or vertically disposed shop moved forward one position. Shop could be moved manually or automatically platoon.
Food T148E1 grenade ammunition was made from 3-round magazine, served on the left side weapons. Shop was a horizontally disposed chambers are united by common walls and a special mount for movement and feeding. After the shot the store moved to the right.
Shop grenade operates as follows. Pomegranates are inserted into the chambers (cells) and is pushed inward. When grenades fully recessed into the chamber, their extractors are fixed in position. After the shoot grenades, locks extractors are pressed, and cartridge cases thrown out. The liner of the first and second cells are ejected to the right side of the third - on the left. Determine the status of the store can be in three spring-loaded lever indicator located at the bottom of the store. When the cells are ammunition, these levers are squeezed down collar leading grenades. If the magazine is inserted into the receiver, lock prevents it from falling out. As shooting grenade indicator levers, which are now no longer backed by a belt, drawn back up.
grenade as follows. To prevent accidental discharge of the weapon, fuse into position «S» (Safe - safe). Then inserted into the receiver loaded magazine and is pushed from left to right until such time as the rightmost chamber is established at the level of the trunk and locks. After evaluating the distance and elevation setting fuse into position «F» (Fire - fire) - the weapon is ready for firing.
| Caliber, mm || 40h46 |
| Length mm || 767 |
| Barrel length, mm || 279 |
| shots without Weight, kg || 3.05 |
| Shop, |
| 3 |
| Start |
Velocity, m / s
| 75 |
| Effective |
| 400 |
T148E1 gun store with a rifled barrel (6 grooves).
weapons used in the trigger mechanism of dual action. When you press the trigger, the trigger is pushed back until until slips off the sear. Then he rotates on the axis of forward hitting drummer, drummer initiates cap, and made the first shot. After making the shot is released to move the store to the next chambered.
Grenade has a wood stock with rubber butt pad to compensate for recoil and wooden handguard, the bottom of which there are swivel mount for a gun belt.
for comfortable shooting gloves trigger guard can be folded to the left or right side.
There were several variants
grenade T148E1, are the different types of sights. At first samples sights out at all - definition of distance and angle of the shot had to be determined thrower. In subsequent samples used sights, borrowed from a grenade launcher XM79, scaled to a distance of 315 yards (288 meters). There was also a version with enough original targeting system - with the help of scales possible nomination race and the definition of angle shot division numbered fixed rotational mechanism in position. It is also the existence of variants with a grenade launcher sight like that of the M79.
In the hands of an American soldier
Several experimental models were tested T148E1 grenade at landfills, about 10 samples were issued to existing combat troops in Vietnam. Overall grenade showed himself on the positive side, as a weapon capable of providing an acceptable density of fire. Scheme "harmonica" allowed reloaded shop in battle without removing it, and apply several types of grenades in one shop, besides bomber could reloaded launcher, even holding the enemy at gunpoint, and stay alert. Unlike M79, semi-automatic grenade launcher was T148E1, which required a minimum of effort from a fighter to make the next shot. Application in the construction of light alloys based on aluminum will make it easy enough - 3.05 kg and 3.86 kg unloaded in a charged state.
grenade launcher M79 was more complicated and inferior to him in terms of reliability. Besides the use of the design of the type "harmonica" believed change in the overall balancing weapons after each shot, which adversely affected the accuracy (personal weapons, this concept is outdated in the XIX century, machine guns, this scheme is also not shown to be effective). Besides the cost of grenade was quite significant (in the Museum of the Springfield Arsenal was transferred several grenade T148E1 - sample passed in October 1961, was estimated at the time at $ 946.00, and passed in 1966 - $ 5000.00).
Grenade T148E1 the U.S. Army and was not taken soon concept trial test sample than for the role of army weapons. In the 1960s and T148E2 T148E1 program were frozen, and the results of test samples sent to the archives and museum Springfield Arsenal. However, the ideas and some design features grenade T148E1 were considered in the development of other projects program SPIW.