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Fusante No.1 (F-1)


Infantry Fragmentation Hand Grenade (1915)


Infantry Small Arms / The Warfighter

1 / 1
Close-up detail view of the French F1 hand grenade with percussion cap fuse; color

Jump-to: Specifications

The French F1 served as the basis for the American Mk 1 and Mk 2 designs as well as the Soviet F1.



Authored By: Staff Writer | Last Edited: 11/01/2016 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site.
The F1 served the French Army through World War 1 and World War 2 as a standard anti-personnel fragmentation infantry hand grenade. The type served as the basis for other country's designs including both the United States (Mk 1) and the Soviet Union (F1). The French F1 was initially designed in 1915 with acceptance into French Army service being granted that same year. It served French forces until the fall of France in 1940 to the Germans.

The F1 originally relied on a percussion-based detonation cap system. This eventually gave way to the more conventional time-fused system utilized the world over. Her steel exterior was ribbed to ensure a solid single-hand hold when handling. The system was actuated by removal of the safety device and then thrown towards the enemy. Such a weapon proved useful in the trench warfare networks of World War 1 where dislodging prepared enemies was key to victory. In World War 2, the French Army and her Allies valiantly attempted the defense France and the F1 was fielded alongside the P1 and Citron type hand grenades until the fall of France. After the war in 1945, the F1 was discontinued from French Army use, eventually replaced by more modern types.

During World War 1, the F1 was selected by the United States Army as the basis for its new Mk 1 fragmentation grenade of 1917. At the time of America's involvement in World War 1, the nation held little in the way of an arms industry and relied largely on existing French systems. The Mk 1 proved a massive failure for the burgeoning American arms industry but paved the way for the fabled Mk 2 series of 1918 thereafter.

The Soviet Union also took to designing their new F1 hand grenade from the French F1, this based off of use of the French F1 during the rise of the Bolsheviks during the Russian Revolution. France delivered F1 grenades in support of "White Movement" forces combating the rise of the Bolsheviks to no avail.

Specifications



Service Year
1915

Origin
France national flag graphic
France

Classification


Infantry Fragmentation Hand Grenade


State Factories - France
National flag of France National flag of Finland National flag of Russia National flag of the Soviet Union National flag of the United States France; Finland; Imperial Russia; Soviet Union; United States
(OPERATORS list includes past, present, and future operators when applicable)
Fire Support
Capable of suppressing enemy elements at range through direct or in-direct fire.


Overall Length
100 mm
3.94 in
Barrel Length
100 mm
3.94 in
Empty Wgt
1.26 lb
0.57 kg
Sights


Not Applicable.


Action


Manually-Actuated; Percussion Cap/Timed-Fuse; Thrown

Percussion Cap
Utilizes the percussion cap system of operation to actuate ignition of propellant; much like a child's cap gun, small explosive caps are set upon nipples and these are actuated by a falling hammer previously cocked.
Fuse Detonation
Design relies on timed / fuse detonation.
(Material presented above is for historical and entertainment value and should not be construed as usable for hardware restoration, maintenance, or general operation - always consult official manufacturer sources for such information)


Caliber(s)*


Not Applicable.

Rounds / Feed


Single Use
Cartridge relative size chart
*May not represent an exhuastive list; calibers are model-specific dependent, always consult official manufacturer sources.
**Graphics not to actual size; not all cartridges may be represented visually; graphics intended for general reference only.
Max Eff.Range
98 ft
(30 m | 33 yd)


F1 - Base Series Designation; initial production with percussion cap detonation, later changed to timed fuse.


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