377 
THE ROYAL ARTILLERY INSTITUTION. 
Table of Values of b' and c' corresponding to Velocities at intervals of 50 feet 
per second , for the Cubic Law of Resistance 2 b' v 3 , and also for the 
Newtonian Law of Resistance 2 d v 2 . 
Cubic Law 
Newtonian Law 
Cubic Law 
Newtonian Law 
Velocity 
r / W 
2000 b — 
/ W 
2 °°OC' - 
Velocity 
2000 
b 
d a 
, w 
2000 c- a 
f.s. 
Spherical 
Elongated 
Spherical 
Elongated 
f.s. 
Spherical 
Elongated 
Spherical 
Elongated 
shot 
Ogival Hd. 
shot 
Ogival Hd. 
shot 
Ogival Hd. 
shot 
Ogival Hd. 
850 
•0001384 
.— 
•1176 
— 
1500 
•OOO 1 34 1 
•OOOO972 
•2012 
‘H 5 8 
900 
•OOOI382 
•OOO0644 
•1244 
•0580 
1550 
•OOOI308 
•OOOO930 
•2027 
•1442 
950 
•OOOI388 
•OOOO674 
•I319 
•0640 
1600 
•OOOI275 
•OOO0890 
•2O4O 
•1424 
IOOO 
•OOOI4II 
•OOOO750 
•I4II 
•0750 
1650 
•OOOI241 
•OOO0854 
•2048 
•1409 
10 5 ° 
•OOOI461 
•OOOO928 
'1534 
•0974 
1700 
•0001208 
•OOO0839 
•2054 
•1426 
1100 
•0001514 
•0001060 
•1665 
‘Il66 
1750 
•0001174 
— 
•2055 
— 
1150 
•OOOI536 
•0001082 
•1766 
•I244 
1800 
•0001142 
— 
•2056 
— 
1200 
•OOOI534 
•OOOI089 
•1841 
•I307 
1850 
•0001113 
— 
•2059 
— 
1250 
•0001511 
•OOOI087 
•1889 
•1359 
1900 
•OOOI087 
— 
•2065 
— 
1300 
•OOOI478 
•OOOIO79 
•I92I 
•I403 
195 ° 
•OOOI063 
— 
•2073 
— 
1350 
•OOOI447 
•OOOI064 
•1953 
•1436 
2000 
•OOOIO39 
— 
•2078 
— 
1400 
•OOOI413 
•OOOIO4O 
•1978 
•1456 
2050 
•QOOIOI7 
— 
•2081 
— 
1450 
•OOOI377 
•OOOIOO9 
•1997 
•1463 
2100 
•OOOO992 
— 
•2083 
— 
Table showing the connection between Lnitial Velocity and Weight of Charge 
for each Gun and Shot used in the Experiments made with the Bashforth 
Chronograph , 186 7 - 9 . 
ELONGATED SHOT 
3 -inch Gun 
5 -inch Gun 
7 -inch Gun 
9 -inch Gun 
Charge 
12-lb. 
shot. 
9-lb. 
shot 
6-lb. 
shot 
Charge 
47 '68-lb. 
shot 
23'84-lb. 
shot 
Charge 
123-lb. 
shot 
61-lb. 
shot 
Charge 
250-lb. 
shot 
lbs. 
ozs. 
f.s. 
f.s. 
f.s. 
lbs. 
f.s. 
f.s. 
lbs. 
f.s. 
f.s. 
lbs. 
f.s. 
O 
12 
614 
693 
815 
3-00 
— 
1179 
7 0 
— 
mi 
22 
IOI9 
O 
13 
658 
745 
876 
3*25 
— 
1246 
8-o 
865 
1208 
23 
IO46 
O 
14 
700 
794 
935 
3 ' 5 o 
— 
1308 
90 
933 
1293 
24 
IO71 
O 
15 
741 
841 
991 
375 
— 
1364 
10-0 
995 
1367 
25 
1095 
I 
O 
782 
886 
1044 
4-00 
IO39 
1416 
10-5 
1023 
1402 
26 
III7 
I 
I 
820 
928 
io 95 
4-25 
IO72 
H63 
no 
1050 
1435 
27 
1137 
I 
2 
8 57 
969 
1144 
4 - 5 o 
II03 
1505 
n -5 
1075 
1466 
28 
1155 
I 
3 
8 93 
1008 
1191 
475 
II3I 
1543 
120 
1099 
1495 
29 
II7I 
I 
4 
927 
1045 
1235 
5-00 
II58 
1577 
12-5 
1122 
1522 
30 
H87 
I 
5 
960 
1080 
1277 
5-25 
Il82 
1608 
13-0 
ii 43 
1549 
31 
1202 
I 
6 
991 
1114 
1318 
5 - 5 o 
1205 
1635 
135 
1163 
1575 
32 
1215 
I 
7 
1021 
H46 
1357 
575 
1225 
1659 
14-0 
1182 
1601 
33 
1227 
I 
8 
1050 
1176 
1394 
6-oo 
1244 
1680 
14-5 
1200 
1626 
34 
1238 
I 
9 
IO77 
1205 
1429 
6-25 
I26l 
1698 
15 0 
1218 
1651 
35 
1248 
I s 
10 
1103 
1233 
1463 
6-50 
1277 
1715 
155 
1235 
— 
36 
1257 
I 
11 
1127 
1260 
1495 
675 
1292 
1730 
i6*o 
i2 5 i 
—- 
37 
1266 
I 
12 
II5I 
1285 
1525 
7-00 
1306 
1743 
16-5 
1265 
— 
38 
1274 
I 
13 
1173 
1309 
1554 
7-25 
1319 
1755 
17-0 
1279 
— 
39 
1282 
I 
14 
1194 
1333 
1582 
7 ' 5 ° 
1331 
1766 
i 7*5 
1293 
— 
40 
I29O 
I 
i 5 
1213 
1356 
1609 
775 
1342 
1776 
18-0 
1307 
— 
41 
1298 
2 
0 
1231 
1378 
1634 
8-oo 
1353 
1785 
18*5 
1320 
— 
42 
1306 
— 
— 
— 
— 
— 
— 
19-0 
1333 
— 
43 
I 3 H 
— 
— 
— 
— 
— 
— 
19-5 
1346 
— 
44 
1322 
— 
— 
— 
— 
— 
— 
20-o 
1357 
— 
45 
I329 
