Tecnam P-Mentor - Page 136

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Section 5 – PERFORMANCE
GRADIENT / RATE (ft/min) OF CLIMB/DESCENT
P-Mentor – Aircraft Flight Manual Page 5 - 4
4. Gradient / Rate (ft/min) of climb / descent
A rule of thumb to find the rate of climb/descent in (ft/min) is multiply Ground
Speed (Kts) by gradient of climb/descent (in percent).
Example:
Given Find
a. Ground Speed = 100 Kts → c. Corresponding Rate of
Climb = 1200 ft/min
b. Gradient = 12%
% DEG ft/NM 80 90 100 110 120 130 140 150 160 170 180 190
0.5 0.3 30 41 46 51 56 61 66 71 76 81 86 91 96
1.0 0.6 61 81 91 101 111 122 132 142 152 162 172 182 192
1.5 0.9 91 122 137 152 167 182 197 213 228 243 258 273 289
2.0 1.1 122 162 182 202 223 243 263 283 304 324 344 364 385
2.5 1.4 152 202 228 253 278 304 329 354 380 405 430 456 481
3.0 1.7 182 243 273 304 334 364 395 425 456 486 516 547 577
3.5 2.0 213 283 319 354 390 425 460 496 531 567 602 638 673
4.0 2.3 243 324 364 405 445 486 526 567 607 648 688 729 769
4.5 2.6 273 364 410 455 501 546 592 637 683 728 774 819 865
5.0 2.9 304 405 455 506 556 607 657 708 759 809 860 910 961
5.5 3.1 334 445 501 556 612 667 723 779 834 890 945 1001 1057
6.0 3.4 365 485 546 607 667 728 788 849 910 970 1031 1092 1152
6.5 3.7 395 525 591 657 723 788 854 920 985 1051 1117 1182 1248
7.0 4.0 425 566 636 707 778 849 919 990 1061 1131 1202 1273 1344
7.5 4.3 456 606 682 757 833 909 985 1060 1136 1212 1288 1363 1439
8.0 4.6 486 646 727 808 888 969 1050 1131 1211 1292 1373 1454 1534
8.5 4.9 516 686 772 858 943 1029 1115 1201 1287 1372 1458 1544 1630
9.0 5.1 547 726 817 908 999 1089 1180 1271 1362 1452 1543 1634 1725
9.5 5.4 577 766 862 958 1054 1149 1245 1341 1437 1532 1628 1724 1820
10.0 5.7 608 806 907 1008 1108 1209 1310 1411 1511 1612 1713 1814 1915
10.5 6.0 638 846 952 1058 1163 1269 1375 1481 1586 1692 1798 1904 2009
11.0 6.3 668 886 997 1107 1218 1329 1439 1550 1661 1772 1882 1993 2104
11.5 6.6 699 926 1041 1157 1273 1388 1504 1620 1735 1851 1967 2083 2198
12.0 6.8 729 965 1086 1207 1327 1448 1569 1689 1810 1931 2051 2172 2292
12.5 7.1 760 1005 1130 1256 1382 1507 1633 1759 1884 2010 2135 2261 2387
13.0 7.4 790 1044 1175 1306 1436 1567 1697 1828
1958 2089 2219 2350 2480
13.
5 7.7 820 1084 1219 1355 1490 1626 1761 1897 2032 2168 2303 2439 2574
14.0 8.0 851 1123 1264 1404 1544 1685 1825 1966 2106 2247 2387 2527 2668
14.5 8.3 881 1163 1308 1453 1599 1744 1889 2034 2180 2325 2470 2616 2761
15.0 8.5 911 1202 1352 1502 1652 1803 1953 2103 2253 2404 2554 2704 2854
15.5 8.8 942 1241 1396 1551 1706 1861 2016 2172 2327 2482 2637 2792 2947
16.0 9.1 972 1280 1440 1600 1760 1920 2080 2240 2400 2560 2720 2880 3040
16.5 9.4 1003 1319 1484 1649 1814 1978 2143 2308 2473 2638 2803 2968 3132
17.0 9.7 1033 1358 1527 1697 1867 2037 2206 2376 2546 2716 2885 3055 3225
17.5 9.9 1063 1397 1571 1746 1920 2095 2269 2444 2619 2793 2968 3142 3317
18.0 10.2 1094 1435 1615 1794 1973 2153 2332 2512 2691 2870 3050 3229 3409
18.5 10.5 1124 1474 1658 1842 2026 2211 2395 2579 2763 2948 3132 3316 3500
19.0 10.8 1154 1512 1701 1890 2079 2268 2457 2646 2835 3024 3213 3403 3592
19.5 11.0 1185 1551 1744 1938 2132 2326 2520 2714 2907 3101 3295 3489 3683
20.0 11.3 1215 1589 1787 1986 2185 2383 2582 2780 2979 3178 3376 3575 3773
20.5 11.6 1246 1627 1830 2034 2237 2440 2644 2847 3051 3254 3457 3661 3864
21.0 11.9 1276 1665 1873 2081 2289 2497 2706 2914 3122 3330 3538 3746 3954
21.5 12.1 1306 1703 1916 2129 2341 2554 2767 2980 3193 3406 3619 3832 4044
22.0 12.4 1337 1741 1958 2176 2393 2611 2829 3046 3264 3481 3699 3917 4134
GROUND SPEED (kts)
GRADIENT