The bombardier, and pocket gunner

by Ralph Willett Adye

Table of Amplitudes.

Degrees.	Ascents.		Descents.
	Multipliers.		Multipliers.
	1st. cl.	2d. cl.	1st. cl.	2d. cl.
1	.983	1.02	1.02	.983
2	.966	1.03	1.04	.966
3	.949	1.06	1.05	.950
4	.932	1.07	1.07	.932
5	.916	1.09	1.09	.916
6	.900	1.11	1.11	.900
7	.884	1.13	1.13	.884
8	.868	1.15	1.15	.868
9	.852	1.18	1.17	.853
10	.836	1.20	1.19	.836
11	.821	1.22	1.22	.821
12	.805	1.24	1.24	.805
13	.789	1.27	1.27	.789
14	.774	1.29	1.29	.774
15	.758	1.32	1.31	.763
16	.742	1.35	1.34	.745
17	.726	1.38	1.37	.730
18	.711	1.40	1.39	.720
19	.693	1.45	1.42	.704
20	.677	1.48	1.45	.690
21	.660	1.52	1.46	.675
22	.643	1.56	1.52	.662
23	.625	1.60	1.55	.645
24	.607	1.64	1.58	.633
25	.589	1.70	1.62	.617
26	.570	1.76	1.66	.603
27	.550	1.82	1.69	.592
28	.530	1.86	1.73	.578
29	.510	1.96	1.78	.562
30	.488	2.05	1.82	.549
31	.466	2.14	1.87	.534
32	.442	2.26	1.92	.526
33	.418	2.41	1.97	.508
34	.393	2.55	2.02	.495
35	.366	2.73	2.08	.488
36	.338	2.96	2.13	.470
37	.309	3.24	2.20	.455
38	.278	3.60	2.26	.443
39	.245	4.09	2.33	.430
40	.210	4.80	2.40	.417
41	.173	5.78	2.48	.404
42	.134	7.46	2.56	.390
43	.092	10.90	2.64	.380
44	.045	22.22	2.73	.370
45	.000	infinite	2.83	.360

Table of Natural Sines, Tangents, and Secants.

Degrees.	Sines.	Tangents.	Secants.
1	.018	.018	1.000
2	.035	.035	1.000
3	.052	.052	1.001
4	.070	.070	1.002
5	.087	.087	1.004
6	.105	.105	1.006
7	.122	.123	1.008
8	.139	.141	1.010
9	.156	.158	1.012
10	.174	.176	1.015
11	.191	.194	1.019
12	.208	.213	1.022
13	.225	.231	1.026
14	.242	.249	1.031
15	.259	.268	1.035
16	.276	.287	1.040
17	.292	.306	1.046
18	.309	.325	1.051
19	.326	.344	1.058
20	.342	.364	1.064
21	.358	.384	1.071
22	.375	.404	1.079
23	.391	.424	1.086
24	.407	.445	1.095
25	.423	.466	1.103
26	.438	.488	1.112
27	.454	.510	1.122
28	.469	.532	1.133
29	.485	.554	1.143
30	.500	.577	1.155
31	.515	.601	1.167
32	.530	.625	1.179
33	.545	.649	1.192
34	.559	.675	1.206
35	.574	.700	1.221
36	.588	.727	1.236
37	.602	.754	1.252
38	.616	.781	1.269
39	.629	.810	1.287
40	.643	.839	1.305
41	.656	.869	1.325
42	.669	.900	1.346
43	.682	.933	1.367
44	.695	.966	1.390
45	.707	1.000	1.414
46	.719	1.036	1.440
47	.731	1.072	1.466
48	.743	1.111	1.494
49	.755	1.150	1.524
50	.766	1.192	1.556
51	.777	1.235	1.589
52	.788	1.280	1.624
53	.799	1.327	1.662
54	.809	1.376	1.701
55	.819	1.428	1.743
56	.829	1.483	1.788
57	.839	1.540	1.836
58	.848	1.600	1.887
59	.857	1.664	1.942
60	.866	1.732	2.000
61	.875	1.804	2.063
62	.883	1.881	2.130
63	.891	1.963	2.203
64	.899	2.050	2.281
65	.906	2.145	2.366
66	.914	2.246	2.459
67	.921	2.356	2.559
68	.927	2.475	2.669
69	.934	2.605	2.790
70	.940	2.747	2.924
71	.946	2.904	3.072
72	.951	3.078	3.236
73	.956	3.271	3.420
74	.961	3.487	3.628
75	.966	3.732	3.864
76	.970	4.011	4.134
77	.974	4.331	4.445
78	.978	4.705	4.810
79	.982	5.145	5.241
80	.985	5.671	5.759
81	.988	6.314	6.392
82	.990	7.115	7.185
83	.993	8.144	8.206
84	.995	9.514	9.567
85	.996	11.430	11.474
86	.998	14.301	14.336
87	.999	19.081	19.107
88	.999	28.636	28.654
89	.999	57.290	57.299
90	1.000	infinite	——

GUNS.—Calibers of English and Foreign Guns, expressed in English Inches.

English.		French.		Spanish		Dutch.		Russian.		Portug.
Pr.	Inch.	Pr.	Inch.	Pr.	Inch.	Pr.	Inch.	Pr.	Inch.	Pr.	Inch.
42	7.018	—	—	—	—	—	—	36	6.86	48	7.49
32	6.41	36	6.9	36	6.84	32	6.4	30	6.47	36	6.8
24	5.823	24	6.03	24	6.03	24	5.92	24	6.	24	5.93
18	5.292	16	5.26	18	5.52	18	5.45	18	5.45	18	5.4
12	4.623	12	4.78	12	4.8	12	4.76	12	4.76	12	4.7
9	4.200	8	4.18	9	4.2	8	4.13	8	4.17	9	4.3
6	3.668	—	—	—	—	6	3.78	6	3.78	6	3.75
4	3.204	4	3.315	—	—	—	—	—	—	—	—
3	3.913	—	—	—	—	—	—	—	—	—	—
1	2.019	—	—	—	—	—	—	—	—	—	—

Length and Width of English Brass Guns.

Nature.		Length in			Weight.
		Calib’rs.	Ft.	In.	Ct.	qrs.	lbs.
42	Pounders	16.244	9	6	66	—	—
32	”	18.721	10	0	55	2	—
24	Heavy	19.574	9	6	53	0	9
	Medium	16.483	8	0	41	3	2
	Light	10.302	5	0	16	3	13
	” new	13.000	6	3	16	3	13
18	Light ”	13.000	5	9	18	0	—
12	Heavy	24.659	9	0	31	2	8
	Gen. Desagulier’s	19.468	7	6	22	1	21
	Medium, old	16.872	6	6	21	3	—
	Medium, new‡	16.872	6	6	18	—	—
	Light	12.978	5	0	8	3	4
	” new‡	13.000	5	0	12	—	—
6	Heavy	26.112	8	0	19	1	6
	Gen. Desag. Med.‡	22.876	7	0	12	—	24
	Med. new	18.500	6	0	8	3	27
	”  reduced	17.000	5	6	8	0	22
	General Belford’s‡	16.342	5	0	5	2	21
	Light, common	14.706	4	6	5	—	18
3	Heavy	28.836	7	0	11	3	19
	Gen. Desagulier’s‡	24.717	6	0	6	—	—
	Light, common‡	14.418	3	6	2	2	27
	Light infantry	12.358	3	0	1	3	16
	General Pattison’s	12.358	3	0	1	2	19
1	Pr. Amuzette	29.7	5	0	2	2	12
	Do.	35.6	6	0	3	0	11
	Do.	41.5	7	0	3	1	12

Note. The guns marked (‡) are the only ones now used on general service.