Propeller Tip Speed Chart |
Propeller Tip Speed Chart (MPH) | ||||||||||||||||
Propeller Diameter (Inches) | ||||||||||||||||
7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | ||
Engine Speed (RPM) |
6,000 | 125 | 143 | 161 | 179 | 196 | 214 | 232 | 250 | 268 | 286 | 303 | 321 | 339 | 357 | 375 |
6,500 | 135 | 155 | 174 | 193 | 213 | 232 | 251 | 271 | 290 | 309 | 329 | 348 | 367 | 387 | 406 | |
7,000 | 146 | 167 | 187 | 208 | 229 | 250 | 271 | 292 | 312 | 333 | 354 | 375 | 396 | 417 | 437 | |
7,500 | 156 | 179 | 201 | 223 | 245 | 268 | 290 | 312 | 335 | 357 | 379 | 402 | 424 | 446 | 469 | |
8,000 | 167 | 190 | 214 | 238 | 262 | 286 | 309 | 333 | 357 | 381 | 405 | 428 | 452 | 476 | 500 | |
8,500 | 177 | 202 | 228 | 253 | 278 | 303 | 329 | 354 | 379 | 405 | 430 | 455 | 481 | 506 | 531 | |
9,000 | 187 | 214 | 241 | 268 | 295 | 321 | 348 | 375 | 402 | 428 | 455 | 482 | 509 | 536 | 562 | |
9,500 | 198 | 226 | 254 | 283 | 311 | 339 | 367 | 396 | 424 | 452 | 481 | 509 | 537 | 565 | 594 | |
10,000 | 208 | 238 | 268 | 298 | 327 | 357 | 387 | 417 | 446 | 476 | 506 | 536 | 565 | 595 | 625 | |
10,500 | 219 | 250 | 281 | 312 | 344 | 375 | 406 | 437 | 469 | 500 | 531 | 562 | 594 | 625 | 656 | |
11,000 | 229 | 262 | 295 | 327 | 360 | 393 | 425 | 458 | 491 | 524 | 556 | 589 | 622 | 655 | 687 | |
11,500 | 240 | 274 | 308 | 342 | 376 | 411 | 445 | 479 | 513 | 547 | 582 | 616 | 650 | 684 | 719 | |
12,000 | 250 | 286 | 321 | 357 | 393 | 428 | 464 | 500 | 536 | 571 | 607 | 643 | 678 | 714 | 750 | |
12,500 | 260 | 298 | 335 | 372 | 409 | 446 | 483 | 521 | 558 | 595 | 632 | 669 | 707 | 744 | 781 |
Aim for 350mph or less with square ended props (e.g. Graupner
and Standard Master Airscrew) and around 400mph or less with round ended props
(e.g. APC or Bolly)
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