Hand-grenades were still in the early stages of development, but did service with both combatants, particularly, in this case, in siege operations at Port Hudson, Vicksburg, and Petersburg. They were not judged to be very effective because of the unreliability of their fuses, which made them at times more dangerous to the thrower than to the recipient, a problem not entirely solved in the twenty-first century Some grenades had eye-catching wooden tails and paper flights, although these were not intended to improve the range, but rather to ensure that the projectile arrived nose first, since that was where the impact fuze was situated. Examples of these weapons may be seen at the Gettysburg Museum of the Civil War. West Point, and Petersburg, Va. Specimens are rare, few having survived, and all are quite collectible.
1 Federal Ketcham percussion 5lb (2.27kg) grenade.
2 Ketcham 11b (0 45kg) hand-grenade
3 Ketcham 31b (1 36kg) hand-grenade
4 Haynes Excelsior hand-grenade, patented in 1862 The outer casing came in two halves, which could be unscrewed to reveal the inner sphere, which contained the charge. It was detonaied by percussion caps mounted on nipples on the sphere -
hitting the outer casing 5-6 Internal bursting charge container of
Haynes grenade; note the nipples 7 Exterior casing of Haynes grenade, open, exposing the internal bursting charge sphere (in this case, with nipples removed)
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