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The original draw forces of examples from the Mary Rose are estimated by Robert Hardy at 150–160 lb f (670–710 N) at a 30-inch (76.2 cm) draw length; the full range of draw weights was between 100–185 lb f (440–820 N). [8] The 30-inch (76.2 cm) draw length was used because that is the length allowed by the arrows commonly found on the ...
Hunting crossbow. Big game hunting requires a draw weight of more than 35 pounds-force (16 kilograms-force). For larger game such as elk or moose, more than 50 lbf (23 kgf) is suggested. Most male American archers can draw a bow rated at 50–60 lbf (23–27 kgf), most women 30–40 lbf (14–18 kgf). [6]
However, the power stroke of the European crossbows remained much lower than that of Chinese crossbows (typically one third of the powerstroke), which limited their power despite increasing draw weights. [8] For example, a 150-pound (68 kg) draw crossbow with an 11-inch (280 mm) powerstroke can shoot a 400-grain (26 g) arrow at 205 ft/s (62 m/s ...
ATA is defined as the initial velocity of a 350-grain (23-gram) arrow when shot from a bow with a peak draw weight of 70 ± 0.2 lbf (311.38 ± 0.89 N) and draw length of 30 ± 0.25 in (76.20 ± 0.64 cm). IBO speed is defined as the initial velocity of an arrow with a weight of 5 grains (0.32 g) per pound of draw weight.
21st-century hunting compound crossbow. A crossbow is a ranged weapon using an elastic launching device consisting of a bow-like assembly called a prod, mounted horizontally on a main frame called a tiller, which is hand-held in a similar fashion to the stock of a long gun. Crossbows shoot arrow-like projectiles called bolts or quarrels.
Since the arbalest was much larger than earlier crossbows, and because of the greater tensile strength of steel, it had a greater force. The greater draw weight was offset by a shorter draw length, which limited the total potential energy that could be transferred into the crossbow bolt. A skilled arbalestier (arbalester) could loose two bolts ...
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