BMCS is a further developmental stage of the design of charge systems for separated ammunition. These are the 2nd generation modular charges. The complete Bi-Modular Charge System (BMCS) represents in its design substance the solution of charge systems by two types of modules: A bottom Charge module – BC-E and a top Charge module – TC-F. The BC-E module serves for covering of small ranges of fire (it consists of one Zone-1 module and two Zone-2 modules). Type of TC-F module serves for covering of long and maximum ranges of fire (it comprises of three to six modules – Zone – 3, 4, 5 and 6).
BMCS is advantageous over conventional cloth bag charges because of simpler operation and reduced logistics during storage, transportation and war scenario.
| 155mm 52cal/23 dm3 | |||||||
| HEERFB-BT equivalent L15A1/A2 | BC-E | 2xBC-E | 3xTC-F | 4xTC-F | 5xTC-F | 6xTC-F | |
| Zone | |||||||
| Muzzle Velocity | m/s | 315 | 470 | 560 | 690 | 822 | 940 |
| Pressure (max.) | MPa | 60 | 140 | 95 | 150 | 230 | 355 |
| Range (max.) | km | 8.0 | 13.0 | 15.5 | 20 | 24.5 | >30 |
| Overlap | % | min. 15 | min. 30 | min. 30 | min. 30 | min. 30 | |
| Maximum range with HEERFB-BB is 43 km. | |||||||
| Basic characteristics: | ||
| BC-E (XE) | TC-F (XF) | |
| Diameter | 158 mm | 158 mm |
| Lenght | 155 mm | 177 mm |
| Modules can be connected | NO | 6 x TC-F |
| Type of powder charge | Single base | Triple base |
| Additives | YES | YES |
| Ignition | CBI+black powder | CBI+black powder |
| Weight of charge | 1.9 kg | 2.8 kg |
| Propellant weight | 1 500g | 2 300g |
| Powder charge weight | 2 500 EFC value | |
| Shelf life | >15 years of storage in original undamaged containers (average temperature 25°C) | |
| Warning: The combination of charge TC-F or BC-E with other type of charge is not allowed. | ||
