ballisticsresearch.net

EXTERNAL LINKS

Computing & Ballistics - E.N.I.A.C.

 

 

Those familiar with "Hatchers Notebook", will be aware that the figures, in the table below, are meant to represent the results of the actual firing tests. It appears that at least some of the data are probably calculated, using the functions derived from those very tests. The data are still useful. Maj. Gen. Julian S. Hatcher is an excellent and enjoyable read! Note: Use browser BACK function to return from a Graph image. As the hover-buttons below may not work, use the standard links :- GRAPH 1  GRAPH 2  GRAPH 3  .

             

Retardation of Standard Projectiles (feet per second per second)

Velocity (fps) Krupp (Mayevski) G‚vre (G1) British 1904-1906 Aberdeen 'J' (G2) German Spitzer Hodsock flat-based Hodsock boat-tail
800 26.2 28.8 32.8 22 24.1    
850 30.6 34.7 36.76 25 27.3    
900 36.2 42.6 43.75 28 31.2    
950 43.3 53.3 51.45 32 36.2    
1000 54.2 68.0 59.81 38 44.7    
1050 73.3 88.2 72.14 48 60.3    
1100 107.0 112.7 96.8 95 87    
1120 120 123.4 108.74 102 99    
1150 141 139.6 128.96 111 116    
1200 175 166.4 164.86 122 141 128 125
1250 195 191.8 186.34 132 152 135 135
1300 213 216.2 209.36 141 164 150 143
1400 258 261.6 261.76 160 187 176 159
1600 343 347.1 349.90 195 233 222 195
1800 426 429.2 432.23 225 280 268 230
2000 509 510.5 522.60 265 325 303 263
2200 598 593.0 603.00 295 371 364 296
2400 692 678.5 686.93 337 407 410 328
2600 795 769.3 774.73 375 464 454 359
2800 904 867.1 876.68 423 509 502 390
3000 1015 973.0 983.77 463 555 523 420
3200 1135 1087.5 1095.69 514 601    
3400 1265 1213.2 1212.75        
3600 1410 1349.3 1333.99        
3800 1565 1495.5 1460.06        
4000 1730 1649.6 1590.63        
 

      CONTENTS

         Retardation    Home   Reference   Forms   Research   Shopping