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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.:
Notch
N.
21"
1
2,366
2
4,738
3
7,123
4
9,527
5
11,955
6
14,415
7
16,914
8
19,459
9
22,059
10
24,722
11
27,458
12
30,276
13
33,189
14
36,209
15
39,350
16
42,629
18
propeller body 93, Ø 24", adjusted to the 10th step.
Theoretical pitch *28.254 "/rot.
Real pitch: 28.254 x 0.55 = 15.539 "/rot.
Hub dia 93 mm
pitch (inches p. r.)
22"
2,479
2,591
4,964
5,190
7,462
7,802
9,980
10,434
12,524
13,094
15,102
15,788
17,720
18,525
20,386
21,313
23,110
24,160
25,900
27,077
28,765
30,073
31,718
33,160
34,770
36,350
37,933
39,657
41,224
43,098
44,659
46,689
Propeller dia
23"
24"
2,704
5,415
8,141
10,888
13,663
16,474
19,330
22,239
25,211
28,254
31,380
34,602
37,930
41,383
44,972
48,719
25"
26"
2,817
2,929
5,641
5,867
8,480
8,819
11,341
11,795
14,232
14,801
17,161
17,847
20,136
20,914
23,166
24,093
26,261
27,312
29,413
30,609
32,688
33,996
36,043
37,485
39,511
41,091
43,106
44,830
46,845
48,719
50,748
52,778
27"
3,042
6,092
9,159
12,249
15,371
18,534
21,747
25,019
28,362
31,786
35,303
38,927
42,672
46,555
50,593
54,80
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