| IPC 7 English version |
| B64C-B64C01150 |
B64C 13/00 - B64C 39/12  |
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| SECTION B – PERFORMING OPERATIONS; TRANSPORTING |
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| B 64 | AIRCRAFT; AVIATION; COSMONAUTICS |
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| B 64 C | AEROPLANES; HELICOPTERS (air-cushion vehicles B60V) |
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| Note |
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| As far as possible, classification is made according to constructional features; classification according to particular kinds of aircraft is normally regarded as being of secondary importance, except in cases where this is considered to be the characteristic feature. [3] |
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| Subclass Index |
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| STRUCTURES, FAIRINGS |
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| Features common to different elements |
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| Fuselages; wings; stabilising surfaces |
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| Other structural elements |
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| PROPELLERS, FLIGHT CONTROL |
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| Propellers |
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| Adjustable control surfaces or members; control systems |
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| Control by jet reaction |
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| Stabilisation and controls not otherwise provided for |
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| MODIFYING LIFT BY ACTION ON AIR-FLOW |
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| ALIGHTING GEAR |
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| AIRCRAFT KINDS AND THEIR COMPONENTS NOT OTHERWISE PROVIDED FOR |
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| Supersonic |
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| Seaplanes |
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| Aircraft intended to be sustained without power plant; powered hand-glider-type aircraft; microlight aircraft |
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| Convertible aircraft |
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| Vertical-take-off or landing aircraft |
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| Rotorcraft; ornithopters |
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| Others |
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| Aircraft structures or fairings (boundary-layer controls B64C 21/00) |
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1/ | 00 | Fuselages; Constructional features common to fuselages, wings, stabilising surfaces, or the like (aerodynamical features common to fuselages, wings, stabilising surfaces, or the like B64C 23/00; flight-deck installations B64D) |
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1/ | 06 | . | Frames; Stringers; Longerons |
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1/ | 08 | . | . | Geodetic or other open-frame structures |
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1/ | 10 | . | . | Bulkheads |
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1/ | 12 | . | . | Construction or attachment of skin panels |
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1/ | 14 | . | Windows; Doors; Hatch covers or access panels; Surrounding frame structures; Canopies; Windscreens (fairings movable in conjunction with undercarriage elements B64C 25/16; bomb doors B64D 1/06) |
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1/ | 16 | . | specially adapted for mounting power plant |
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1/ | 18 | . | Floors |
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1/ | 20 | . | . | specially adapted for freight |
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1/ | 22 | . | Other structures integral with fuselages to facilitate loading |
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1/ | 24 | . | Steps mounted on, and retractable within, fuselages (readily removable B64D 9/00) |
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1/ | 26 | . | Attaching the wing or tail units or stabilising surfaces |
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1/ | 28 | . | Parts of fuselage relatively movable to improve pilots view |
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1/ | 30 | . | Parts of fuselage relatively movable to reduce overall dimensions of aircraft |
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1/ | 32 | . | Severable or jettisonable parts of fuselage facilitating emergency escape (ejector seats B64D 25/10) |
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1/ | 34 | . | comprising inflatable structural components (connection of valves to inflatable elastic bodies B60C 29/00) |
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1/ | 36 | . | adapted to receive aerials or radomes (aerials or radomes per se H01Q) |
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1/ | 38 | . | Constructions adapted to reduce effects of aerodynamic or other external heating |
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1/ | 40 | . | Sound or heat insulation |
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3/ | 00 | Wings (stabilising surfaces B64C 5/00; ornithopter wings B64C 33/02) |
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3/ | 10 | . | Shape of wings |
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3/ | 14 | . | . | Aerofoil profile |
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3/ | 16 | . | . | Frontal aspect |
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3/ | 18 | . | Spars; Ribs; Stringers (attaching wing unit to fuselage B64C 1/26) |
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3/ | 20 | . | Integral or sandwich constructions (layered products or sandwich constructions in general B32B) |
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3/ | 22 | . | Geodetic or other open-frame structures |
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3/ | 24 | . | Moulded or cast structures |
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3/ | 26 | . | Construction, shape, or attachment of separate skins, e.g. panels |
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3/ | 28 | . | Leading or trailing edges attached to primary structures, e.g. forming fixed slots |
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3/ | 30 | . | comprising inflatable structural components (connection of valves to inflatable elastic bodies B60C 29/00) |
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3/ | 32 | . | specially adapted for mounting power plant |
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3/ | 34 | . | Integrally-constructed tanks, e.g. for fuel (other aircraft fuel tanks or fuel systems B64D) |
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3/ | 36 | . | Structures adapted to reduce effects of aerodynamic or other external heating |
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3/ | 38 | . | Adjustment of complete wings or parts thereof |
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3/ | 40 | . | . | Varying angle of sweep |
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3/ | 42 | . | . | Adjusting about chordwise axes |
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3/ | 44 | . | . | Varying camber |
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3/ | 46 | . | . | . | by inflatable elements (connection of valves to inflatable elastic bodies B60C 29/00) |
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3/ | 48 | . | . | . | by relatively-movable parts of wing structures |
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3/ | 50 | . | . | . | by leading or trailing edge flaps (ailerons B64C 9/00) |
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3/ | 52 | . | . | Warping |
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3/ | 54 | . | . | Varying in area (flaps extendable to increase camber B64C 3/44) |
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3/ | 56 | . | . | Folding or collapsing to reduce overall dimensions of aircraft |
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3/ | 58 | . | provided with fences or spoilers (adjustable for control purposes B64C 9/00) |
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5/ | 00 | Stabilising surfaces (attaching stabilising surfaces to fuselage B64C 1/26) |
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5/ | 02 | . | Tailplanes (fins B64C 5/06) |
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5/ | 04 | . | Noseplanes |
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5/ | 06 | . | Fins (specially for wings B64C 5/08) |
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5/ | 08 | . | mounted on, or supported by, wings |
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5/ | 10 | . | adjustable |
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5/ | 12 | . | . | for retraction against or within fuselage or nacelle |
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5/ | 14 | . | . | Varying angle of sweep |
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5/ | 16 | . | . | about spanwise axes |
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5/ | 18 | . | . | in area |
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7/ | 00 | Structures or fairings not otherwise provided for |
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7/ | 02 | . | Nacelles |
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9/ | 00 | Adjustable control surfaces or members, e.g. rudders (trimming stabilising surfaces B64C 5/10; systems for actuating flying-control surfaces B64C 13/00) |
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9/ | 02 | . | Mounting or supporting thereof |
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9/ | 04 | . | with compound dependent movements |
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9/ | 06 | . | with two or more independent movements |
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9/ | 08 | . | bodily displaceable (varying camber of wings B64C 3/44) |
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9/ | 10 | . | one surface adjusted by movement of another, e.g. servo tabs (B64C 9/04 takes precedence; adjusting surfaces of different type or function B64C 9/12) |
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9/ | 12 | . | surfaces of different type or function being simultaneously adjusted |
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9/ | 14 | . | forming slots (boundary-layer control B64C 21/00) |
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9/ | 16 | . | . | at the rear of the wing |
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9/ | 18 | . | . | . | by single flaps |
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9/ | 20 | . | . | . | by multiple flaps |
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9/ | 22 | . | . | at the front of the wing |
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9/ | 24 | . | . | . | by single flap |
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9/ | 26 | . | . | . | by multiple flaps |
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9/ | 28 | . | . | by flaps at both the front and rear of the wing operating in unison |
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9/ | 30 | . | Balancing hinged surfaces, e.g. dynamically |
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9/ | 32 | . | Air braking surfaces (braking by parachutes B64D 17/80) |
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9/ | 34 | . | collapsing or retracting against or within other surfaces or other members |
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9/ | 36 | . | . | the members being fuselages or nacelles |
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9/ | 38 | . | Jet flaps |
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11/ | 00 | Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft (rotors specially adapted for rotorcraft B64C 27/32) |
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11/ | 02 | . | Hub construction |
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11/ | 04 | . | . | Blade mountings |
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11/ | 06 | . | . | . | for variable-pitch blades |
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11/ | 08 | . | . | . | for non-adjustable blades |
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11/ | 10 | . | . | . | . | rigid |
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11/ | 12 | . | . | . | . | flexible |
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11/ | 14 | . | . | Spinners |
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11/ | 16 | . | Blades |
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11/ | 18 | . | . | Aerodynamic features |
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11/ | 20 | . | . | Constructional features |
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11/ | 22 | . | . | . | Solid blades |
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11/ | 24 | . | . | . | Hollow blades |
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11/ | 26 | . | . | . | Fabricated blades |
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11/ | 28 | . | . | . | Collapsible or foldable blades |
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11/ | 30 | . | Blade pitch-changing mechanisms |
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11/ | 32 | . | . | mechanical |
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11/ | 34 | . | . | . | automatic |
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11/ | 36 | . | . | . | non-automatic |
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11/ | 38 | . | . | fluid, e.g. hydraulic |
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11/ | 40 | . | . | . | automatic |
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11/ | 42 | . | . | . | non-automatic |
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11/ | 44 | . | . | electric |
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11/ | 46 | . | Arrangements of, or constructional features peculiar to, multiple propellers |
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11/ | 48 | . | . | Units of two or more coaxial propellers |
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11/ | 50 | . | . | Phase synchronisation between multiple propellers |
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 | B64C 13/00 - B64C 39/12 |
