Meccano 16211 - Airplane Assembly - Steps 24-27; Rotor Mast and Blade Attachment

S1
24
x3
x1
x1
x1
x3
S1
5 8 mm
,,
15/64
,
26
x2
x2
A238x2
A338
S3
B1
27
x1
x1
x1
S3
12 mm
,,
1/2
A338x1
x1
B1
14 7 mm
,,
37/64
,
S3
B1
25
x3
x3
S1
5 8 mm
,,
15/64
,
S1
2423
2625
29