s. |
| | | |
Shell |72 lbs. |135 lbs. |135 lbs. |
| | | |
Axis of bore |10 feet. |10 feet. |20 feet. |
above load-line | | | |
| |[Screw-sloops.] |[2d deck above |
| | | water.] |
Distance | | | |
between sights |39 inches. |48 inches. |48 inches. |
| | | |
------------------+-------+----------+-------+----------+-------+----------+
ELEVATION |RANGE |GRADUATION|RANGE |GRADUATION|RANGE |GRADUATION|
------------------+-------+----------+-------+----------+-------+----------+
Degrees. | Yards.| Inches. | Yards.| Inches. | Yards.| Inches. |
Level. | 340 | 0.461 | 306 | 0.600 | 420 | 0.87 |
... | 700 | 0.983 | 500 | 0.945 | 700 | 1.48 |
... | 900 | 1.514 | 700 | 1.442 | 900 | 2.01 |
... | 1,100 | 2.073 | 900 | 2.040 | 1,100 | 2.62 |
... | 1,300 | 2.646 | 1,100 | 2.651 | 1,300 | 3.25 |
... | 1,500 | 3.222 | 1,300 | 3.295 | 1,500 | 4.92 |
... | 1,700 | 3.813 | 1,500 | 3.953 | ... | ... |
... | ... | ... | 1,700 | 4.681 | ... | ... |
------------------+-------+----------+-------+----------+-------+----------+

APPENDIX B.--No. V.--_Approximate Ranges of Shell-Guns._

------------+-----------+-----------+-------+------+-----------------------+
| | | | | ELEVATION IN DEGREES. |
| | | | | RANGES IN YARDS. |
| | | | | TIME OF FLIGHT IN |
| | | | | SECONDS. |
CLASS | | WEIGHT | |HEIGHT+-----+-----+-----+-----+
OF | KIND OF | OF |CHARGE,|ABOVE |P.B. | | | |
GUN. |PROJECTILE.|PROJECTILE.| lbs. |PLANE.|or 0 deg.| 1 deg. | 2 deg.