event time altitude speed density (s) (m) (m/s) (kg/m³) Mach 25 42 80770 7620 0.000014 250000 ft 127 76198 7518 0.000029 Mach 24 232 74056 7312 0.000040 Mach 23 351 71725 7008 0.000058 Mach 22 446 70224 6702 0.000072 Mach 21 524 68291 6399 0.000095 Mach 20 589 66203 6092 0.000127 Mach 19 643 64134 5789 0.000168 Mach 18 689 61921 5481 0.000225 200000 ft 708 60919 5337 0.000256 Mach 17 728 59897 5175 0.000292 Mach 16 762 58448 4874 0.000351 Mach 15 794 57290 4563 0.000405 Mach 14 824 55703 4260 0.000493 Mach 13 856 54490 3943 0.000571 Mach 12 886 53205 3649 0.000665 Mach 11 916 51650 3351 0.000799 Mach 10 947 49658 3047 0.001021 Mach 9 980 47842 2737 0.001284 Mach 8 1015 46242 2438 0.001584 150000 ft 1031 45151 2310 0.001842 Mach 7 1055 43423 2132 0.002349 Mach 6 1099 39899 1825 0.003908 Mach 5 1146 36072 1523 0.006959 Mach 4 1197 31787 1218 0.013659 100000 ft 1216 30472 1111 0.016747 Mach 3 1254 27442 912 0.026855 90000 ft 1255 27363 907 0.027195 MM 305 1285 24913 758 0.040033 80000 ft 1293 24322 717 0.043969 Mach 2 1317 22890 606 0.055245 70000 ft 1339 21333 524 0.070989 60000 ft 1372 18207 409 0.116745 Mach 1 1403 15498 304 0.17899 50000 ft 1407 15189 290 0.187957 40000 ft 1452 12182 236 0.30213 30000 ft 1493 9133 226 0.459089 20000 ft 1541 6072 201 0.654585 10000 ft 1593 3046 185 0.904824 Left Landing Gear 1674 0 110 1.225 Right Landing Gear 1675 0 106 1.225 Nose Gear 1687 0 80 1.225