for retraction against or within fuselage or nacelle
5
/
14
•
•
Varying angle of sweep
5
/
16
•
•
about spanwise axes
5
/
18
•
•
in area
7
/
00
Structures or fairings not otherwise provided for
7
/
02
•
Nacelles
9
/
00
Adjustable control surfaces or members, e.g. rudders (trimming stabilising surfaces B 64 C 5/10; systems for actuating flying-control surfaces B 64 C 13/00)
9
/
02
•
Mounting or supporting thereof
9
/
04
•
with compound dependent movements
9
/
06
•
with two or more independent movements
9
/
08
•
bodily displaceable (varying camber of wings B 64 C 3/44)
9
/
10
•
one surface adjusted by movement of another, e.g. servo tabs (B 64 C 9/04 takes precedence; adjusting surfaces of different type or function B 64 C 9/12)
9
/
12
•
surfaces of different type or function being simultaneously adjusted
9
/
14
•
forming slots (boundary-layer control B 64 C 21/00)
9
/
16
•
•
at the rear of the wing
9
/
18
•
•
•
by single flaps
9
/
20
•
•
•
by multiple flaps
9
/
22
•
•
at the front of the wing
9
/
24
•
•
•
by single flap
9
/
26
•
•
•
by multiple flaps
9
/
28
•
•
by flaps at both the front and rear of the wing operating in unison
9
/
30
•
Balancing hinged surfaces, e.g. dynamically
9
/
32
•
Air braking surfaces (braking by parachutes B 64 D 17/80)
9
/
34
•
collapsing or retracting against or within other surfaces or other members
9
/
36
•
•
the members being fuselages or nacelles
9
/
38
•
Jet flaps
11
/
00
Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft (rotors specially adapted for rotorcraft B 64 C 27/32)
11
/
02
•
Hub construction
11
/
04
•
•
Blade mountings
11
/
06
•
•
•
for variable-pitch blades
11
/
08
•
•
•
for non-adjustable blades
11
/
10
•
•
•
•
rigid
11
/
12
•
•
•
•
flexible
11
/
14
•
•
Spinners
11
/
16
•
Blades
11
/
18
•
•
Aerodynamic features
11
/
20
•
•
Constructional features
11
/
22
•
•
•
Solid blades
11
/
24
•
•
•
Hollow blades
11
/
26
•
•
•
Fabricated blades
11
/
28
•
•
•
Collapsible or foldable blades
11
/
30
•
Blade pitch-changing mechanisms
11
/
32
•
•
mechanical
11
/
34
•
•
•
automatic
11
/
36
•
•
•
non-automatic
11
/
38
•
•
fluid, e.g. hydraulic
11
/
40
•
•
•
automatic
11
/
42
•
•
•
non-automatic
11
/
44
•
•
electric
11
/
46
•
Arrangements of, or constructional features peculiar to, multiple propellers
