M26 grenade
M61, a variant of the M26 (manufactured in May 1969)
TypeHand grenade
Place of originUnited States
Service history
In service1950s–present
Used by
  • Chile
  • Brazil
  • United States
  • Israel
  • United Kingdom
  • Australia
  • Canada
  • Philippines
  • Portugal
  • South Africa
  • West Germany
WarsKorean War, Vietnam War, Six-Day War, Yom Kippur War, Falklands War, Syrian Civil War
Production history
Produced1950s–present
Specifications
Mass16 oz. [454 g][1][2]
Length99 mm[1] [3 7/8 inches]
Diameter57 mm[1] [2 1/4 inches]
FillingComposition B
Filling weight5.75 oz. [164 g][1]
Detonation
mechanism
M204-series Timed Friction Fuse [3]

The M26 is a fragmentation hand grenade developed by the United States military. It entered service around 1952 and was used in combat during the Korean War. Its distinct lemon shape led it to being nicknamed the "lemon grenade" (compare the Russian F1 grenade and American Mk 2 "pineapple" grenade, with similar nicknames).

Fragmentation is enhanced by a special notched fragmentation coil that lies along the inside of the grenade's body.[4] This coil had a circular cross-section in the M26 grenade and an improved square cross-section in the M26A1 and later designs.

The grenades were stored inside two-part cylindrical fiberboard shipping tubes (Container M289) and were packed 25 or 30 to a crate.

History

Ethiopian Soldiers from the Kagnew Battalion, 7th Inf. Div., in Korea, 1953

The M26 was developed as a result of studies on the Mk 2. Unlike its previous counterpart, its M204A1 fuse[3] creates no tell-tale smoke or sparks when ignited and its powder train is almost silent while it burns down.[4] Its Composition B filler was considered safer than the flaked or granular TNT filling used in the Mk 2.

The M26 series was created after World War II to meet criticisms of the Mk 2. The original M26 replaced the Mk 2 Fragmentation Grenade as Army standard issue in Korea. Massive World War II production left the Mk 2 as limited standard issue with the US Army and US Marines throughout the 1960s and the US Navy until the 1970s. The M26A1 / M61 was the primary fragmentation grenade used by American forces in the Vietnam War.

The M26 series (M26/M61/M57) was replaced by the M33 series grenade (M33/M67) at the end of the Vietnam War.

Variants

M26A1

The M26A1 is an M26 that has the fragmentation coil redesigned to have a square rather than circular cross-section and has deeper serrations to aid in fragmentation. It also added a small tetryl booster charge on its fuze to completely detonate the explosive filler (displaced to 5.5 ounces (160 g) because of the added booster charge) and used the updated M204A2 fuze.[3] It was adopted in American service in 1958.

M26A2

The M26A2 is an M26A1 modified to accept an M217 impact fuze.[3] It is slightly fatter than the M26A1 and the safety lever is embossed with the word "IMPACT" on it. Earlier models had a red-painted lever with the word "IMPACT" painted on with black paint.[5]

M30

The M30 is the practice version of the M26 grenade. It had a cast-iron two-piece oval body with a plastic base plug. The body was embossed with the symbols "RFX55"; it was originally the basis for an experimental hand grenade that was never put into production. It had a filler of 21 grains of black powder and used the M10A3/M10A4 or M204A1/M204A2 series of fuzes. Its body is painted light blue with a brown band across the middle. When the grenade detonated, the overpressure made the plug pop out and released a plume of black smoke caused by the burnt filler.

M61

M61 showing the additional safety clip

The M61 is the M26A1 with an extra safety (called the "jungle clip") attached to the safety lever. This is to prevent the safety lever from flying off and allowing the striker to function if the safety pin gets accidentally pulled out by snagging it on jungle vegetation.[4]

The most common method of carrying grenades was by straps on the ammo pouches. Soldiers, inspired by characters in movies and TV shows, also commonly hung grenades on their persons using the safety levers, although it is said that "official policy forbade the practice as unsafe."

M62

The M62 is the practice version of the M26A1 / M61, but with a larger 5⁄8-inch (16 mm) fuze well. It has a filler of 37.5 grains (2.43 g) of black powder and uses the M228 fuze. Its body and lever are painted blue to identify it as a practice grenade and it has a "jungle clip" like the M61.

M50

The M50 was a "live fire" conversion of the M30 Practice grenade for use on training ranges. It sealed the base plug, used the M204A1 fuze, and replaced the low-explosive black powder filler with high-explosive Composition B. It allowed the training of recruits with greater safety because it lacked the fragmentation coil of the M26 and had a smaller blast radius. This also used up obsolete ordnance by utilizing worn M30 bodies as its base.

M56

The M56 is the M26A1 with a larger 5/8-inch fuze well. It uses the M215 detonating fuse (with a delay of 4–5 seconds) and has a "jungle clip" like the M61. The M215 is similar to the M213 fuse used in the M33-series grenades except it has a curved lever rather than the bent straight lever of the M213.

M57

The M57 is the M26A2 with a "jungle clip" safety attached to the lever.

L2 (United Kingdom)

A British L2-A2 fragmentation grenade

The L2 series (with a green shell) is the British version of the M26; it has a 4.4 second fuze. The L2 was like the early M26 (except it used the L25 series fuze), the L2A1 was like the product-improved M26A1, and the L2A2 was a variant of the L2A1 with a redesigned fuze well for ease of mass production.[6]
The L3 series (with a light blue shell and a black powder filler) is the Practice grenade variant.[6][7]
The L4 series (with a dark blue shell, non-functional fuze, and no filler) is the inert Drill grenade variant.[6][7]

DM41 (West Germany)

West German DM41 fragmentation hand grenade labelled to indicate a filling of Composition B
West German DM41 fragmentation grenade filled with Composition B. This example has been dissected to reveal the fragmentation sleeve and explosive charge

The DM41 or DM41A1 is a West German copy of the M26A1 hand grenade, manufactured by Diehl Defence of Nuremberg. Production ended around 1975 when the DM51 explosive fragmentation hand grenade was adopted by the Bundeswehr.[8]

Users

References

  1. 1 2 3 4 LEXPEV. "M26, M26A1 & M61". Lexpev.nl. Retrieved 2014-05-03.
  2. ↑ "Hand Grenades". Inetres.com. Retrieved 2014-05-03.
  3. 1 2 3 4 "Table 1: Authorized Hand Grenades". Archived from the original on 2016-03-04. Retrieved 2013-03-19. Training Manual TM-9-1330-200-12 Grenades. Table 1: Authorized Hand Grenades3
  4. 1 2 3 Copyright 2001-2005 Inert-Ord.net. "U.S. M61 Fragmentation Grenade (Vietnam)". Inert-Ord.net. Retrieved 2014-05-03.{{cite web}}: CS1 maint: numeric names: authors list (link)
  5. ↑ TM 43-0001-29 Grenades (chg 4, 2002).
  6. 1 2 3 Military Factory L2 Anti-Personnel Fragmentation Hand Grenade
  7. 1 2 3 "M26". Archived from the original on 2015-11-17. Retrieved 2013-02-24.
  8. ↑ "DM 41".
  9. ↑ LEXPEV. "Australian grenades". Lexpev.nl. Retrieved 2014-05-03.
  10. ↑ LEXPEV. "Canadian grenades". Lexpev.nl. Retrieved 2014-05-03.
  11. ↑ "Granada IMC MG M26 HE – Indumil".
  12. ↑ "DM 41".
  13. ↑ LEXPEV. "M-26". Lexpev.nl. Retrieved 2014-05-03.
  14. ↑ http://www.israelnationalnews.com/News/News.aspx/154626#.UaPin5zi6F1 Learning from Tragedy, IDF Develops Safer Hand Grenade (4/9/2012), Israel National News
  15. ↑ Jowett, Philip (22 September 2016). Modern African Wars (5): The Nigerian-Biafran War 1967–70. Osprey Publishing. ISBN 9781472816092.
  16. ↑ "북괴군 특작부대, 무장공비 사용화기, 장비".
  17. ↑ LEXPEV. "Portuguese grenades". Lexpev.nl. Retrieved 2014-05-03.
  18. ↑ Smyth, Frank (January 1994). "Arming Rwanda - The Arms Trade and Human Rights Abuses in the Rwandan War" (PDF). hrw.org. Human Rights Watch Arms Project. Retrieved 9 April 2022.
  19. ↑ LEXPEV. "South African grenades". Lexpev.nl. Retrieved 2014-05-03.
  20. ↑ A/3/O8/PL GREN Training with Grenades. SA Army Headquarters. February 1980.
  21. ↑ Denel Land Systems. "Grenade Datasheets" (PDF). Archived from the original (PDF) on 14 September 2006. Retrieved 3 November 2020.
  22. ↑ "Fact File: M26 fragmentation hand grenade". DefenceWeb. Archived from the original on 4 May 2014. Retrieved 3 May 2014.
  23. ↑ "SAP Special Task Force". www.sapstf.org.
  24. ↑ McNab, Chris (2002). 20th Century Military Uniforms (2nd ed.). Kent: Grange Books. p. 308. ISBN 1-84013-476-3.
  25. ↑ LEXPEV. "L2 serie". Lexpev.nl. Retrieved 2014-05-03.
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