ially designed in the case of guns for bal- wider range of field. There is also a range-finder by loon firing. The weight of the gun itself, or 990 which the distance is first obtained, and afterward the pounds, combined with the weight of the support, 1,550 The 4.2-inch Krupp gun for aeronautic… … and at the same time the path of ble during the firing, the platform Boro, 2.8inches: projectile, 9pounds; velocity, 2050 f. s.; maximum range, 28,550 feet. (Concluded on page 383.') the projectile from the time it field gnu for airship attack. Destruction of a captive bal- The 3-inch 12-pounder…
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