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)
|