F1 grenade (Russia)
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The Soviet F1 hand grenade, is an anti-personnel fragmentation defensive grenade. It is based on the French F1 grenade and contains a 60 gram explosive charge (TNT). The total weight of the grenade with the fuze is about 600 grams. Due to its shape, it is nicknamed the limonka (lemon-like), similar to the American M26 grenade "lemon grenade", which was also ultimately modeled on the French F1; it is also nicknamed Efka (Russian: Эфка) for the letter F.
The UZRGM fuze is a universal Russian type also used in the RG-41, RG-42, RGO-78, RGN-86 and RGD-5 grenades. The standard time delay for this fuze is 3.5 to 4 seconds. However, UZRGM fuze variants are available which give delays between zero (i.e., instantaneous, specifically for use in booby-traps) and 13 seconds.
The F1 was introduced during World War II and subsequently redesigned post-war. It has a steel exterior that is notched to facilitate fragmentation upon detonation and to prevent hands from slipping. The distance the grenade can be thrown is estimated at 30–45 meters. The radius of the shrapnel dispersion is up to 200 meters (effective radius is about 30 meters, by some sources (Russian)). Hence, the grenade has to be deployed from a defensive position to avoid harm.
The F1 grenade has been supplied to various foreign countries over the years, including Iraq and other Arab nations, and there are different production variations according to country of origin (in terms of finish, markings and spoon/lever design). Though obsolete and no longer in production, it can still be encountered in combat zones.
- Yu. Veremeev, "Происхождение "лимонки".
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- Finnish Junkyard
- F-1 grenade (Russian)
- Soviet hand grenade F-1 (Russian)
- Information about the World War II-era F1
- Information about the post World War II F1