ATP-5-0-2-1 Staff Reference Guide Volume 1 Download

Appendix D 220 ATP 5-0.2-1 07 December 2020 Table D-6. Division opposed rates of advance (km/day) Numbers, Predictions & War, Dupuy, T.N., 1979 Degree of resistance Prepared defense 2 Hasty defense or delay 3 Attacker : defender ratio 1 Unrestricted terrain Restricted terrain Severely restricted Unrestricte d terrain Restricted terrain Severely restricted Mounted Dismounted Mounted Dismounted Mounted Dismounted Mounted Dismounted Mounted Dismounted Mounted Dismounted Intense Resistance 1:1 4 2 2 1 1 .6 .6 4 4 2 2 1.2 1.2 Very heavy 2:1 4 5-6 4 2-3 2 1.5- 1.8 1.2 10- 12 8 5-6 4 31-3.6 2.4 Heavy 3:1 5 7-8 5 3-4 2.5 1.2- 2.3 1.5 13- 16 10 8 5 3.9- 14.8 3 Medium 4:1 8-10 6 4-5 2.3-3 2.7 1.8 16- 20 12 10 6 4.8-6 3.6 Light 5:1 16-20 10 8-10 4.8-6 5.4 3 30- 40 18 20 9 9-12 5.4 Negligible 6:1 6 24-30 12 12- 15 7.2-9 8.1 3.6 48- 60 24 30 12 14.4-18 7.2 Notes. 1 Rates are reduced by 12 at night. 2 The relative combat power ratio must be computed for the unit under consideration. 3 Prepared defense is based on defender prepared positions for a minimum of 24 hours. 4 Hasty defense is based on defender preparing positions for less than 24 hours. Two numbers indicate hasty defense/delay factors 5 Sustained rates of advance are not possible without a ratio of 3:1, except in very rare instances usually involving complete surprise. 6 Rates of advance greater than 6:1 ratio are between this row and unopposed rates. The following are the factors for tactical surprise: –Complete surprise rate from table above x5 (example: 1989 OPN Just Cause, 1973 Yom Kippur). –Substantial surprise rate from table above x3 (example: 1991 OPN Desert Storm, 1967 Israeli attack in Sinai). –Minor surprise rate from table above x1.3 (example: 1944 OPN Overlord). –Effects of surprise reduce by 13 on day 2, by 23 on day 3 and do not apply on day 4. D-2. Tables D-7 and D-8 are useful in determining the amount of time required for a given march unit to pass a given point. For example, if a convoy has 20 vehicles traveling at 24 km/hr with an interval of 50 meters, the time needed is 3 minutes, 20 seconds. If a convoy has 26 vehicles, using the same parameters (24 km/hr and 50 meter interval), simply add the time needed for 6 vehicles (1 minute) to the required time for 20 vehicles (3 minutes, 20 seconds) for a total time of 4 minutes, 20 seconds.