TM 1-1510-225-10 7-65 NORMAL CRUISE POWER 1800 RPM ISA NOTES: IOAT, TORQUE, AND FUEL FLOW BASED ON 12,000 POUNDS. TO OBTAIN FUEL FLOW PER ENGINE, DIVIDE  THE TOTAL FUEL FLOW VALUE FOR THE CORRESPONDING ALTITUDE BY TWO. AIRSPEED ~ KNOTS PRESSURE ALT IOAT    OAT TORQUE PER ENGINE TOTAL FUEL FLOW 13,000 LB 12,000 LB 11,000 LB 10,000 LB FEET ° C ° C FT-LB % LB/HR IAS TAS IAS TAS IAS TAS IAS TAS SL 20 15 2230 100 984 240 241 241 242 242 243 243 244 2000 17 11 2230 100 956 238 246 239 247 240 248 240 248 4000 13 7 2230 100 928 235 250 236 251 237 252 238 253 6000 9 3 2230 100 902 233 255 234 256 235 257 236 258 8000 5 -1 2230 100 880 230 260 232 261 233 262 234 263 10,000 2 -5 2230 100 858 228 265 229 266 230 267 231 269 12,000 -2 -9 2230 100 838 226 270 227 272 228 273 229 274 14,000 -6 -13 2230 100 882 223 275 224 277 226 278 227 280 16,000 -9 -17 2163 97 792 218 278 219 279 221 281 222 283 18,000 -13 -21 2029 91 744 210 276 212 279 213 281 215 282 20,000 -17 -25 1940 87 708 204 277 206 279 207 282 209 284 22,000 -21 -29 1851 83 672 197 277 199 280 201 283 203 285 24,000 -25 -33 1739 78 630 189 275 192 278 194 282 196 284 26,000 -29 -37 1628 73 582 180 271 183 275 186 279 188 282 28,000 -34 -41 1494 67 536 170 265 174 271 177 275 180 279 29,000 -36 -42 1427 64 514 164 260 168 267 172 273 175 277 31,000 -40 -46 1316 59 474 151 248 158 260 163 268 166 273 33,000 -45 -50 1182 53 434 131 225 145 248 152 260 157 268 35,000 – – –     – – – – – – – – – – – – – – – – – –     – – –     – – –     – – – – – –     – – –     – – – Figure 7-61.  Normal Cruise Power, 1800 RPM, ISA