During World War II, an ingenious piece of weaponry was born out of the partnership between sports culture and military innovation. The BEANO T-13 hand grenade, a creation which married the ease of a baseball throw with the deadly force of explosives, was developed by the Office of Strategic Services, which later became the CIA, and with assistance from Eastman Kodak Corporation.
Dubbed as a spherical grenade with the size and weight akin to that of a common baseball, the T-13 was specifically designed to leverage the baseball-throwing skills prevalent among young American men of that era. The rationale was simple yet strategic: equip soldiers with a weapon they could deploy with both precision and range, mirroring the familiar action of pitching a baseball.
The design of the BEANO T-13 was unique, featuring a pressure trigger and an in-flight arming device. The grenade was held by two fingers on a weighted and knurled “butterfly cap.” Upon throwing, akin to pitching a baseball, the cap detached and a length of nylon string would unwind, pulling a secondary arming pin at the end of the cord to arm the grenade, resulting in detonation upon impact with a hard surface.
While the original intent was to have the grenade weigh 5.5 ounces, equivalent to a standard baseball, concerns about the lightness led to an increase in weight to 12 ounces. This adjustment was presumably to ensure both the practicality of throwing and the efficacy of the explosive yield upon impact.
Despite the clever design, the practical application of the T-13 came with significant risks. Testing at Aberdeen Proving Ground revealed that the grenade’s explode-on-impact fuse was sensitive, leading to five premature detonations, resulting in two fatalities and numerous injuries. These unfortunate incidents during trials reflected a 10% failure rate. Consequently, production was halted in March 1945 after the distribution of just 2,742 of the 10,000 ordered grenades.
The BEANO T-13 was not the first grenade to draw inspiration from sports. During World War I, the British No. 15 ball grenade, or the “cricket ball grenade,” also took a nod from sports culture, albeit with a design and throwing technique derived from the game of cricket. However, its heavy weight compared to a cricket ball made it less intuitive for soldiers to use.
The BEANO T-13’s story is an intriguing tale of innovation and illustrates a period when the military sought to capitalize on the widespread sporting skills of its personnel. It serves as an example of how, in times of conflict, the familiarity and comfort derived from peacetime activities such as sports were harnessed to develop weapons for combat.
While current military training emphasizes teaching proper grenade-throwing techniques over reliance on preexisting skills, the BEANO T-13 remains a fascinating footnote in the history of weaponry—a testament to the crossroads where athleticism met the grim necessities of war.
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– TIL that during WWII, the U.S. Army designed a grenade to be the same size and weight as a baseball, making it easier for American soldiers to throw.