Handbook for Light Artillery

by A. B. Dyer

Range.	Elevation.		Drift.	Time of Flight.	Angle of Fall.		Final Velocity.	Marks on Sight-bar.	Drift- marks.	Mean Deviation.			Dangerous Space of Target 5½ Feet High.	Highest Point of Trajectory.
										Range.	Drift.	Height.
Yds.	°	′	Yds.	Sec.	°	′	Ft.	In.	In.	Yds.	Yds.	Yds.	Yds.	Ft.
100	0	06	0.01	0.2	0	11	1234	0.058	0.003	22.3	0.06	0.07	Total
200	0	17	0.04	0.4	0	24	1161	0.164	0.007	21.3	0.12	0.14	Range.
300	0	29	0.09	0.6	0	38	1091	0.281	0.010	20.5	0.19	0.22	217
400	0	42	0.16	1.0	0	52	1037	0.406	0.014	19.8	0.25	0.30	150
500	0	56	0.27	1.3	1	09	987	0.543	0.018	19.1	0.32	0.39	113	14
600	1	10	0.43	1.7	1	28	944	0.679	0.023	18.5	0.42	0.49	90
700	1	25	0.64	2.0	1	49	906	0.824	0.027	18.0	0.50	0.57	74
800	1	42	0.87	2.4	2	12	874	0.989	0.032	17.5	0.55	0.65	68
900	1	59	1.2	2.7	2	37	843	1.154	0.037	17.1	0.63	0.79	53
1000	2	16	1.6	3.1	3	05	819	1.319	0.042	16.7	0.70	0.90	46	67
1100	2	35	2.0	3.4	3	35	796	1.504	0.054	16.5	0.79	1.02	40
1200	2	55	2.5	3.8	4	07	775	1.698	0.067	16.3	0.8	1.1	36
1300	3	16	3.2	4.2	4	42	756	1.902	0.079	16.0	0.99	1.3	32
1400	3	38	3.9	4.5	5	20	741	2.116	0.092	16.0	1.05	1.4	29
1500	4	00	4.7	4.9	5	59	726	2.331	0.104	15.9	1.1	1.5	26	184
1600	4	24	5.7	5.4	6	30	711	2.565	0.120	15.9	1.3	1.7
1700	4	49	6.7	5.8	7	13	695	2.808	0.136	15.9	1.4	1.9
1800	5	15	7.9	6.2	7	56	682	3.063	0.152	15.9	1.6	2.1
1900	5	42	9.4	6.7	8	31	670	3.334	0.168	16.1	1.6	2.4
2000	6	10	11.0	7.1	9	14	659	3.601	0.184	16.5	1.7	2.7		387
2100	6	39	12.7	7.6	10	00	650	3.877	0.207	16.9	1.8	3.0
2200	7	09	14.7	8.0	10	48	641	4.181	0.229	17.2	2.0	3.3
2300	7	40	16.8	8.5	11	39	632	4.487	0.252	17.6	2.2	3.6
2400	8	12	19.3	9.0	12	31	623	4.804	0.274	18.1	2.4	4.0
2500	8	46	22.0	9.5	13	24	613	5.140	0.297	18.7	2.5	4.6		701

THE GATLING GUN.

Fig. 86.

The following description applies more particularly to the model of 1883, which differs in some of its details from previous models. The 1-inch and .45-inch calibres are now in service; and contracts have been made for supplying .30-inch calibre.

The Gatling gun consists of a number of breech-loading rifled barrels, B, grouped around a shaft, S, to which they are parallel. The 1-inch has six barrels; smaller calibres eight and ten.

Each barrel is fired only once in the revolution of the group.

Fig. 87.