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Calculation of the slip:
The following tables give the theoretical value of the pitch.
To obtain the real value multiply the datum being examined by
a reduction factor of 0.55.
E.g.:
propeller body 83, Ø 19", adjusted to the 10th step.
Theoretical pitch *25.926 "/rot.
Real pitch: 25.926 x 0.55 = 14.259 "/rot.
Notch
N.
16"
1
2,060
2
4,128
3
6,210
4
8,313
5
10,444
6
12,613
7
14,826
8
17,094
9
19,425
10
21,832
11
24,326
12
26,921
13
29,633
14
32,479
15
35,480
16
38,659
Hub dia 83 mm
pitch (inches p. r.)
Propeller dia
17"
18"
2,189
2,318
4,386
4,644
6,598
6,986
8,832
9,352
11,097
12,403
13,401
14,198
15,753
16,679
18,162
19,231
20,640
21,854
23,197
24,561
25,847
27,367
28,604
30,287
31,485
33,337
34,509
36,539
37,697
39,915
41,076
43,942
19"
20"
2,447
2,576
4,902
5,160
7,374
7,762
9,872
10,391
11,663
13,056
14,978
15,766
17,606
18,533
20,299
21,376
23,068
24,282
25,926
27,290
28,888
30,408
31,969
33,652
35,189
37,041
38,569
40,599
42,132
44,350
45,908
48,324
21"
22"
2,704
2,833
5,418
5,676
8,151
8,539
10,911
11,430
13,709
14,361
16,554
17343
19,459
20,386
22,436
23,504
25,496
26,710
28,655
30,019
31,928
33,449
35,334
37,017
38,893
40,745
42,629
44,659
46,567
48,785
50,741
53,157
17
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