B64C1/00	7	Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like	B64C1/00	B64C1/00		1787
B64C1/0009	8	{Aerodynamic aspects}	B64C1/00	B64C1/00		531
B64C2001/0018	8	{comprising two decks adapted for carrying passengers only}	B64C1/00	B64C1/00		4
B64C2001/0027	9	{arranged one above the other}	B64C1/00	B64C1/00		125
B64C2001/0036	9	{arranged side by side at the same level}	B64C1/00	B64C1/00		26
B64C2001/0045	8	{Fuselages characterised by special shapes}	B64C1/00	B64C1/00		473
B64C2001/0054	8	{Fuselage structures substantially made from particular materials}	B64C1/00	B64C1/00		168
B64C2001/0063	9	{from wood}	B64C1/00	B64C1/00		213
B64C2001/0072	9	{from composite materials}	B64C1/00	B64C1/00		1573
B64C2001/0081	9	{from metallic materials}	B64C1/00	B64C1/00		917
B64C2001/009	8	{comprising decompression panels or valves for pressure equalisation in fuselages or floors}	B64C1/00	B64C1/00		223
B64C1/06	8	Frames; Stringers; Longerons {; Fuselage sections}	B64C1/06	B64C1/06		878
B64C1/061	9	{Frames}	B64C1/06	B64C1/06		901
B64C1/062	10	{specially adapted to absorb crash loads}	B64C1/06	B64C1/06		211
B64C1/063	10	{Folding or collapsing to reduce overall dimensions, e.g. foldable tail booms}	B64C1/06	B64C1/06		210
B64C1/064	9	{Stringers; Longerons}	B64C1/06	B64C1/06		700
B64C1/065	9	{Spars}	B64C1/06	B64C1/06		340
B64C1/066	9	{Interior liners}	B64C1/06	B64C1/06		533
B64C1/067	10	{comprising means for preventing icing or condensation conditions}	B64C1/06	B64C1/06		83
B64C1/068	9	{Fuselage sections}	B64C1/06	B64C1/06		866
B64C1/0683	10	{Nose cones}	B64C1/06	B64C1/06		115
B64C1/0685	10	{Tail cones}	B64C1/06	B64C1/06		62
B64C1/069	10	{Joining arrangements therefor}	B64C1/06	B64C1/06		503
B64C1/08	9	Geodetic or other open-frame structures	B64C1/08	B64C1/08		348
B64C1/10	9	Bulkheads	B64C1/10	B64C1/10		425
B64C1/12	9	Construction or attachment of skin panels	B64C1/12	B64C1/12		1680
B64C1/14	8	Windows; Doors; Hatch covers or access panels; Surrounding frame structures; Canopies; Windscreens {accessories therefor, e.g. pressure sensors, water deflectors, hinges, seals, handles, latches, windscreen wipers}(fairings movable in conjunction with undercarriage elements B64C25/16; bomb doors B64D1/06)	B64C1/14	B64C1/14		813
B64C1/1407	9	{Doors; surrounding frames}	B64C1/14	B64C1/14		855
B64C1/1415	10	{Cargo doors, e.g. incorporating ramps}	B64C1/14	B64C1/14		409
B64C1/1423	10	{Passenger doors}	B64C1/14	B64C1/14		370
B64C1/143	11	{of the plug type}	B64C1/14	B64C1/14		204
B64C1/1438	11	{of the sliding type}	B64C1/14	B64C1/14		116
B64C1/1446	10	{Inspection hatches (for engine cowls B64D29/08)}	B64C1/14	B64C1/14		274
B64C1/1453	10	{Drain masts}	B64C1/14	B64C1/14		127
B64C1/1461	10	{Structures of doors or surrounding frames}	B64C1/14	B64C1/14		369
B64C1/1469	10	{Doors between cockpit and cabin}	B64C1/14	B64C1/14		259
B64C1/1476	9	{Canopies; Windscreens or similar transparent elements}	B64C1/14	B64C1/14		540
B64C1/1484	10	{Windows (B64C1/1492 takes precedence)}	B64C1/14	B64C1/14		469
B64C1/1492	10	{Structure and mounting of the transparent elements in the window or windscreen}	B64C1/14	B64C1/14		671
B64C1/16	8	specially adapted for mounting power plant	B64C1/16	B64C1/16		239
B64C1/18	8	Floors	B64C1/18	B64C1/18		733
B64C1/20	9	specially adapted for freight	B64C1/20	B64C1/20		588
B64C1/22	8	Other structures integral with fuselages to facilitate loading {, e.g. cargo bays, cranes}	B64C1/22	B64C1/22		566
B64C1/24	8	Steps mounted on, and retractable within, fuselages	B64C1/24	B64C1/24		228
B64C1/26	8	Attaching the wing or tail units or stabilising surfaces	B64C1/26	B64C1/26		851
B64C1/28	8	Parts of fuselage relatively movable to improve pilots view	B64C1/28	B64C1/28		74
B64C1/30	8	Parts of fuselage relatively movable to reduce overall dimensions of aircraft	B64C1/30	B64C1/30		1324
B64C1/32	8	Severable or jettisonable parts of fuselage facilitating emergency escape	B64C1/32	B64C1/32		269
B64C1/34	8	comprising inflatable structural components	B64C1/34	B64C1/34		133
B64C1/36	8	adapted to receive antennas or radomes	B64C1/36	B64C1/36		525
B64C1/38	8	Constructions adapted to reduce effects of aerodynamic or other external heating	B64C1/38	B64C1/38		481
B64C1/40	8	Sound or heat insulation {, e.g. using insulation blankets}	B64C1/40	B64C1/40		1014
B64C1/403	9	{Arrangement of fasteners specially adapted therefor, e.g. of clips}	B64C1/40	B64C1/40		141
B64C1/406	10	{in combination with supports for lines, e.g. for pipes or cables}	B64C1/40	B64C1/40		153
B64C3/00	7	Wings (ornithopter wings B64C33/02)	B64C3/00	B64C3/00		2258
B64C3/10	8	Shape of wings	B64C3/10	B64C3/10		636
B64C3/14	9	Aerofoil profile	B64C3/14	B64C3/14		785
B64C3/141	10	{Circulation Control Airfoils}	B64C3/14	B64C3/14		105
B64C2003/142	10	{with variable camber along the airfoil chord}	B64C3/14	B64C3/14		79
B64C2003/143	10	{comprising interior channels}	B64C3/14	B64C3/14		67
B64C2003/144	10	{including a flat surface on either the extrados or intrados}	B64C3/14	B64C3/14		17
B64C2003/145	10	{comprising &apos;Gurney&apos; flaps}	B64C3/14	B64C3/14		38
B64C2003/146	10	{comprising leading edges of particular shape}	B64C3/14	B64C3/14		121
B64C2003/147	10	{comprising trailing edges of particular shape}	B64C3/14	B64C3/14		89
B64C2003/148	10	{comprising protuberances, e.g. for modifying boundary layer flow}	B64C3/14	B64C3/14		93
B64C2003/149	10	{for supercritical or transonic flow}	B64C3/14	B64C3/14		71
B64C3/16	9	Frontal aspect	B64C3/16	B64C3/16		204
B64C3/18	8	Spars; Ribs; Stringers	B64C3/18	B64C3/18		701
B64C3/182	9	{Stringers, longerons}	B64C3/18	B64C3/18		440
B64C3/185	9	{Spars}	B64C3/18	B64C3/18		707
B64C3/187	9	{Ribs}	B64C3/18	B64C3/18		539
B64C3/20	8	Integral or sandwich constructions	B64C3/20	B64C3/20		481
B64C3/22	8	Geodetic or other open-frame structures	B64C3/22	B64C3/22		53
B64C3/24	8	Moulded or cast structures	B64C3/24	B64C3/24		144
B64C3/26	8	Construction, shape, or attachment of separate skins, e.g. panels	B64C3/26	B64C3/26		1507
B64C3/28	8	Leading or trailing edges attached to primary structures, e.g. forming fixed slots	B64C3/28	B64C3/28		531
B64C3/30	8	comprising inflatable structural components	B64C3/30	B64C3/30		201
B64C3/32	8	specially adapted for mounting power plant	B64C3/32	B64C3/32		340
B64C3/34	8	Tanks constructed integrally with wings, e.g. for fuel or water	B64C3/34	B64C3/34		302
B64C3/36	8	Structures adapted to reduce effects of aerodynamic or other external heating	B64C3/36	B64C3/36		358
B64C3/38	8	Adjustment of complete wings or parts thereof	B64C3/38	B64C3/38		903
B64C3/385	9	{Variable incidence wings}	B64C3/38	B64C3/38		956
B64C3/40	9	Varying angle of sweep	B64C3/40	B64C3/40		533
B64C3/42	9	Adjusting about chordwise axes	B64C3/42	B64C3/42		210
B64C3/44	9	Varying camber	B64C3/44	B64C3/44		253
B64C2003/445	10	{by changing shape according to the speed, e.g. by morphing}	B64C3/44	B64C3/44		130
B64C3/46	10	by inflatable elements	B64C3/46	B64C3/46		129
B64C3/48	10	by relatively-movable parts of wing structures	B64C3/48	B64C3/48		668
B64C3/50	10	by leading or trailing edge flaps	B64C3/50	B64C3/50		533
B64C3/52	9	Warping	B64C3/52	B64C3/52		202
B64C3/54	9	Varying in area	B64C3/54	B64C3/54		646
B64C2003/543	10	{by changing shape according to the speed, e.g. by morphing}	B64C3/54	B64C3/54		51
B64C3/546	10	{by foldable elements}	B64C3/54	B64C3/54		343
B64C3/56	9	Folding or collapsing to reduce overall dimensions of aircraft	B64C3/56	B64C3/56		1747
B64C3/58	8	provided with fences or spoilers (adjustable for control purposes B64C9/00)	B64C3/58	B64C3/58		254
B64C5/00	7	Stabilising surfaces	B64C5/00	B64C5/00		287
B64C5/02	8	Tailplanes	B64C5/02	B64C5/02		802
B64C5/04	8	Noseplanes	B64C5/04	B64C5/04		110
B64C5/06	8	Fins (B64C5/08 takes precedence)	B64C5/06	B64C5/06		546
B64C5/08	8	mounted on, or supported by, wings	B64C5/08	B64C5/08		355
B64C5/10	8	adjustable	B64C5/10	B64C5/10		395
B64C5/12	9	for retraction against or within fuselage or nacelle	B64C5/12	B64C5/12		146
B64C5/14	9	Varying angle of sweep	B64C5/14	B64C5/14		28
B64C5/16	9	about spanwise axes	B64C5/16	B64C5/16		98
B64C5/18	9	in area	B64C5/18	B64C5/18		49
B64C7/00	7	Structures or fairings not otherwise provided for	B64C7/00	B64C7/00		798
B64C7/02	8	Nacelles	B64C7/02	B64C7/02		454
B64C9/00	7	Adjustable control surfaces or members, e.g. rudders (trimming stabilising surfaces B64C5/10)	B64C9/00	B64C9/00		1489
B64C2009/005	8	{Ailerons}	B64C9/00	B64C9/00		495
B64C9/02	8	Mounting or supporting thereof	B64C9/02	B64C9/02		1244
B64C9/04	8	with compound dependent movements	B64C9/04	B64C9/04		156
B64C9/06	8	with two or more independent movements	B64C9/06	B64C9/06		141
B64C9/08	8	bodily displaceable	B64C9/08	B64C9/08		114
B64C9/10	8	one surface adjusted by movement of another, e.g. servo tabs (B64C9/04 takes precedence; adjusting surfaces of different type or function B64C9/12)	B64C9/10	B64C9/10		105
B64C9/12	8	surfaces of different type or function being simultaneously adjusted	B64C9/12	B64C9/12		137
B64C9/14	8	forming slots	B64C9/14	B64C9/14		185
B64C2009/143	9	{comprising independently adjustable elements for closing or opening the slot between the main wing and leading or trailing edge flaps}	B64C9/14	B64C9/14		133
B64C9/146	9	{at an other wing location than the rear or the front (wings provided with fixed fences or spoilers B64C3/58)}	B64C9/14	B64C9/14		89
B64C9/16	9	at the rear of the wing	B64C9/16	B64C9/16		850
B64C9/18	10	by single flaps	B64C9/18	B64C9/18		521
B64C9/20	10	by multiple flaps	B64C9/20	B64C9/20		374
B64C9/22	9	at the front of the wing	B64C9/22	B64C9/22		490
B64C9/24	10	by single flap	B64C9/24	B64C9/24		421
B64C9/26	10	by multiple flaps	B64C9/26	B64C9/26		89
B64C9/28	9	by flaps at both the front and rear of the wing operating in unison	B64C9/28	B64C9/28		69
B64C9/30	8	Balancing hinged surfaces, e.g. dynamically	B64C9/30	B64C9/30		43
B64C9/32	8	Air braking surfaces	B64C9/32	B64C9/32		466
B64C9/323	9	{associated with wings}	B64C9/32	B64C9/32		393
B64C9/326	9	{associated with fuselages}	B64C9/32	B64C9/32		65
B64C9/34	8	collapsing or retracting against or within other surfaces or other members	B64C9/34	B64C9/34		160
B64C9/36	9	the members being fuselages or nacelles	B64C9/36	B64C9/36		70
B64C9/38	8	Jet flaps	B64C9/38	B64C9/38		552
B64C11/00	7	Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft<br><br><u>NOTE</u><br><br> Documents classified in B64C11/001 - B64C11/008 which also contain relevant information, covered by other subgroups of B64C11/00, are also classified in the appropriate subgroup of B64C11/00	B64C11/00	B64C11/00		1107
B64C11/001	8	{Shrouded propellers}	B64C11/00	B64C11/00		1212
B64C11/002	8	{Braking propellers, e.g. for measuring the power output of an engine}	B64C11/00	B64C11/00		52
B64C11/003	8	{Variable-diameter propellers; Mechanisms therefor}	B64C11/00	B64C11/00		119
B64C11/005	8	{Spiral-shaped propellers}	B64C11/00	B64C11/00		186
B64C11/006	8	{Paddle wheels}	B64C11/00	B64C11/00		707
B64C11/007	8	{Propulsive discs, i.e. discs having the surface specially adapted for propulsion purposes}	B64C11/00	B64C11/00		73
B64C11/008	8	{characterised by vibration absorbing or balancing means}	B64C11/00	B64C11/00		212
B64C11/02	8	Hub construction	B64C11/02	B64C11/02		276
B64C11/04	9	Blade mountings	B64C11/04	B64C11/04		710
B64C11/06	10	for variable-pitch blades	B64C11/06	B64C11/06		731
B64C11/065	11	{variable only when stationary}	B64C11/06	B64C11/06		182
B64C11/08	10	for non-adjustable blades	B64C11/08	B64C11/08		36
B64C11/10	11	rigid	B64C11/10	B64C11/10		37
B64C11/12	11	flexible	B64C11/12	B64C11/12		22
B64C11/14	9	Spinners	B64C11/14	B64C11/14		363
B64C11/16	8	Blades	B64C11/16	B64C11/16		521
B64C11/18	9	Aerodynamic features	B64C11/18	B64C11/18		677
B64C11/20	9	Constructional features	B64C11/20	B64C11/20		613
B64C11/205	10	{for protecting blades, e.g. coating}	B64C11/20	B64C11/20		285
B64C11/22	10	Solid blades	B64C11/22	B64C11/22		87
B64C11/24	10	Hollow blades	B64C11/24	B64C11/24		340
B64C11/26	10	Fabricated blades	B64C11/26	B64C11/26		330
B64C11/28	10	Collapsible or foldable blades	B64C11/28	B64C11/28		446
B64C11/30	8	Blade pitch-changing mechanisms<br><br><u>NOTE</u><br><br> Groups B64C11/301, B64C11/303, B64C11/305 and B64C11/306 take precedence over B64C11/32, B64C11/38 and B64C11/44	B64C11/30	B64C11/30		555
B64C11/301	9	{characterised by blade position indicating means}	B64C11/30	B64C11/30		125
B64C11/303	9	{characterised by comprising a governor}	B64C11/30	B64C11/30		177
B64C11/305	9	{characterised by being influenced by other control systems, e.g. fuel supply}	B64C11/30	B64C11/30		264
B64C11/306	9	{specially adapted for contrarotating propellers}	B64C11/30	B64C11/30		235
B64C11/308	10	{automatic}	B64C11/30	B64C11/30		54
B64C11/32	9	mechanical	B64C11/32	B64C11/32		395
B64C11/325	10	{comprising feathering, braking or stopping systems}	B64C11/32	B64C11/32		172
B64C11/34	10	automatic	B64C11/34	B64C11/34		239
B64C11/343	11	{actuated by the centrifugal force or the aerodynamic drag acting on the blades}	B64C11/34	B64C11/34		394
B64C11/346	11	{actuated by the centrifugal force or the aerodynamic drag acting on auxiliary masses or surfaces}	B64C11/34	B64C11/34		314
B64C11/36	10	non-automatic	B64C11/36	B64C11/36		702
B64C11/38	9	fluid, e.g. hydraulic	B64C11/38	B64C11/38		246
B64C11/385	10	{comprising feathering, braking or stopping systems}	B64C11/38	B64C11/38		273
B64C11/40	10	automatic	B64C11/40	B64C11/40		273
B64C11/42	10	non-automatic	B64C11/42	B64C11/42		515
B64C11/44	9	electric	B64C11/44	B64C11/44		428
B64C11/46	8	Arrangements of, or constructional features peculiar to, multiple propellers {(B64C11/306 takes precedence)}	B64C11/46	B64C11/46		360
B64C11/48	9	Units of two or more coaxial propellers	B64C11/48	B64C11/48		727
B64C11/50	9	Phase synchronisation between multiple propellers	B64C11/50	B64C11/50		114
B64C13/00	7	Control systems or transmitting systems for actuating flying-control surfaces, lift-increasing flaps, air brakes, or spoilers	B64C13/00	B64C13/00		2482
B64C13/02	8	Initiating means	B64C13/02	B64C13/02		332
B64C13/04	9	actuated personally	B64C13/04	B64C13/04		271
B64C13/042	10	{operated by hand}	B64C13/04	B64C13/04		200
B64C13/0421	11	{control sticks for primary flight controls}	B64C13/04	B64C13/04		654
B64C13/0423	11	{yokes or steering wheels for primary flight controls}	B64C13/04	B64C13/04		198
B64C13/0425	11	{for actuating trailing or leading edge flaps, air brakes or spoilers}	B64C13/04	B64C13/04		90
B64C13/0427	11	{for actuating trim}	B64C13/04	B64C13/04		41
B64C13/044	10	{operated by feet, e.g. pedals}	B64C13/04	B64C13/04		230
B64C13/06	10	adjustable to suit individual persons	B64C13/06	B64C13/06		77
B64C13/08	10	Trimming zero positions	B64C13/08	B64C13/08		37
B64C13/10	10	comprising warning devices	B64C13/10	B64C13/10		113
B64C13/12	10	Dual control apparatus	B64C13/12	B64C13/12		193
B64C13/14	10	lockable	B64C13/14	B64C13/14		80
B64C13/16	9	actuated automatically, e.g. responsive to gust detectors	B64C13/16	B64C13/16		709
B64C13/18	10	using automatic pilot	B64C13/18	B64C13/18		695
B64C13/20	10	using radiated signals	B64C13/20	B64C13/20		261
B64C13/22	10	readily revertible to personal control	B64C13/22	B64C13/22		91
B64C13/24	8	Transmitting means	B64C13/24	B64C13/24		948
B64C13/26	9	without power amplification or where power amplification is irrelevant	B64C13/26	B64C13/26		43
B64C13/28	10	mechanical	B64C13/28	B64C13/28		421
B64C13/30	11	using cable, chain, or rod mechanisms	B64C13/30	B64C13/30		574
B64C13/32	11	using cam mechanisms	B64C13/32	B64C13/32		53
B64C13/34	11	using toothed gearing	B64C13/34	B64C13/34		281
B64C13/341	11	{having duplication or stand-by provisions}	B64C13/28	B64C13/34		282
B64C13/343	11	{overriding of personal controls; with automatic return to inoperative position}	B64C13/28	B64C13/34		29
B64C13/345	11	{with artificial feel}	B64C13/28	B64C13/34		93
B64C13/36	10	fluid	B64C13/36	B64C13/36		111
B64C13/38	9	with power amplification	B64C13/38	B64C13/38		133
B64C13/40	10	using fluid pressure	B64C13/40	B64C13/40		294
B64C13/42	11	having duplication or stand-by provisions	B64C13/42	B64C13/42		213
B64C13/44	11	overriding of personal controls; with automatic return to inoperative position	B64C13/44	B64C13/44		14
B64C13/46	11	with artificial feel	B64C13/46	B64C13/46		89
B64C13/48	11	characterised by the fluid being gaseous	B64C13/48	B64C13/48		27
B64C13/50	10	using electrical energy	B64C13/50	B64C13/50		706
B64C13/503	11	{Fly-by-Wire}	B64C13/50	B64C13/50		398
B64C13/504	11	{using electro-hydrostatic actuators [EHA&apos;s]}	B64C13/50	B64C13/50		157
B64C13/505	11	{having duplication or stand-by provisions}	B64C13/50	B64C13/50		390
B64C13/506	11	{overriding of personal controls; with automatic return to inoperative position}	B64C13/50	B64C13/50		66
B64C13/507	11	{with artificial feel}	B64C13/50	B64C13/50		134
B64C15/00	7	Attitude, flight direction, or altitude control by jet reaction	B64C15/00	B64C15/00		141
B64C15/02	8	the jets being propulsion jets	B64C15/02	B64C15/02		514
B64C15/12	9	the power plant being tiltable	B64C15/12	B64C15/12		187
B64C15/14	8	the jets being other than main propulsion jets (jet flaps B64C9/38)	B64C15/14	B64C15/14		315
B64C17/00	7	Aircraft stabilisation not otherwise provided for	B64C17/00	B64C17/00		1602
B64C17/02	8	by gravity or inertia-actuated apparatus	B64C17/02	B64C17/02		354
B64C17/04	9	by pendular bodies	B64C17/04	B64C17/04		60
B64C17/06	9	by gyroscopic apparatus	B64C17/06	B64C17/06		308
B64C17/08	8	by ballast supply or discharge	B64C17/08	B64C17/08		44
B64C17/10	8	Transferring fuel to adjust trim	B64C17/10	B64C17/10		96
B64C19/00	7	Aircraft control not otherwise provided for	B64C19/00	B64C19/00		852
B64C19/02	8	Conjoint controls	B64C19/02	B64C19/02		190
B64C21/00	7	Influencing air flow over aircraft surfaces by affecting boundary layer flow	B64C21/00	B64C21/00		256
B64C21/01	8	Boundary layer ingestion [BLI] propulsion	B64C21/01	B64C21/01		190
B64C21/02	8	by use of slot, ducts, porous areas&#160;or the like	B64C21/02	B64C21/02		549
B64C21/025	9	{for simultaneous blowing and sucking}	B64C21/02	B64C21/02		376
B64C21/04	9	for blowing	B64C21/04	B64C21/04		487
B64C21/06	9	for sucking (BLI propulsion&#160;B64C21/01)	B64C21/06	B64C21/06		436
B64C21/08	9	adjustable	B64C21/08	B64C21/08		328
B64C21/10	8	using other surface properties, e.g. roughness	B64C21/10	B64C21/10		546
B64C23/00	7	Influencing air flow over aircraft surfaces, not otherwise provided for	B64C23/00	B64C23/00		658
B64C23/005	8	{by other means not covered by groups B64C23/02&#160;-&#160;B64C23/08, e.g. by electric charges, magnetic panels, piezoelectric elements, static charges or ultrasounds}	B64C23/00	B64C23/00		1875
B64C23/02	8	by means of rotating members of cylindrical or similar form	B64C23/02	B64C23/02		151
B64C23/04	8	by generating shock waves	B64C23/04	B64C23/04		176
B64C23/06	8	by generating vortices	B64C23/06	B64C23/06		644
B64C23/065	9	{at the wing tips}	B64C23/06	B64C23/06		205
B64C23/069	10	{using one or more wing tip airfoil devices, e.g. winglets, splines, wing tip fences or raked wingtips}	B64C23/06	B64C23/06		265
B64C23/072	11	{the wing tip airfoil devices being moveable in their entirety}	B64C23/06	B64C23/072		199
B64C23/076	11	{the wing tip airfoil devices comprising one or more separate moveable members thereon affecting the vortices, e.g. flaps}	B64C23/06	B64C23/076		122
B64C23/08	8	using Magnus effect	B64C23/08	B64C23/08		204
B64C25/00	7	Alighting gear (air-cushion alighting gear B60V3/08)	B64C25/00	B64C25/00		292
B64C25/001	8	{Devices not provided for in the groups B64C25/02&#160;-&#160;B64C25/68}	B64C25/00	B64C25/00		394
B64C2025/003	9	{Means for reducing landing gear noise, or turbulent flow around it, e.g. landing gear doors used as deflectors}	B64C25/00	B64C25/00		113
B64C2025/005	9	{Tail skids for fuselage tail strike protection on tricycle landing gear aircraft}	B64C25/00	B64C25/00		32
B64C2025/006	9	{Landing gear legs comprising torque arms}	B64C25/00	B64C25/00		50
B64C2025/008	9	{Comprising means for modifying their length, e.g. for kneeling, for jumping, or for leveling the aircraft}	B64C25/00	B64C25/00		245
B64C25/02	8	Undercarriages	B64C25/02	B64C25/02		306
B64C25/04	9	Arrangement or disposition on aircraft	B64C25/04	B64C25/04		478
B64C25/06	9	fixed	B64C25/06	B64C25/06		401
B64C25/08	9	non-fixed, e.g. jettisonable	B64C25/08	B64C25/08		183
B64C25/10	10	retractable, foldable, or the like	B64C25/10	B64C25/10		1067
B64C25/12	11	sideways	B64C25/12	B64C25/12		501
B64C2025/125	12	{into the fuselage, e.g. main landing gear pivotally retracting into or extending out of the fuselage}	B64C25/12	B64C25/12		289
B64C25/14	11	fore-and-aft	B64C25/14	B64C25/14		542
B64C25/16	11	Fairings movable in conjunction with undercarriage elements	B64C25/16	B64C25/16		323
B64C25/18	11	Operating mechanisms	B64C25/18	B64C25/18		152
B64C25/20	12	mechanical	B64C25/20	B64C25/20		485
B64C25/22	12	fluid	B64C25/22	B64C25/22		922
B64C25/24	12	electric	B64C25/24	B64C25/24		503
B64C25/26	12	Control or locking systems therefor	B64C25/26	B64C25/26		570
B64C25/28	13	with indicating or warning devices	B64C25/28	B64C25/28		189
B64C25/30	13	emergency actuated	B64C25/30	B64C25/30		144
B64C25/32	8	characterised by elements which contact&#160;the ground or similar surface&#160; (arrester hooks B64C25/68)	B64C25/32	B64C25/32		776
B64C2025/325	9	{specially adapted for helicopters}	B64C25/32	B64C25/32		760
B64C25/34	9	wheeled type, e.g. multi-wheeled bogies	B64C25/34	B64C25/34		1074
B64C2025/345	10	{Multi-wheel bogies having one or more steering axes}	B64C25/34	B64C25/34		107
B64C25/36	10	Arrangements or adaptations of wheels, tyres or axles in general	B64C25/36	B64C25/36		859
B64C25/38	9	endless-track type	B64C25/38	B64C25/38		138
B64C25/40	9	the elements being rotated before touch-down	B64C25/40	B64C25/40		500
B64C25/405	9	{Powered wheels, e.g. for taxing}	B64C25/32	B64C25/40		695
B64C25/42	9	Arrangement or adaptation of brakes	B64C25/42	B64C25/42		1107
B64C25/423	10	{Braking devices acting by reaction of gaseous medium}	B64C25/42	B64C25/42		88
B64C25/426	10	{Braking devices providing an automatic sequence of braking}	B64C25/42	B64C25/42		205
B64C25/44	10	Actuating mechanisms	B64C25/44	B64C25/44		883
B64C25/445	11	{Brake regulators for preventing somersaulting}	B64C25/44	B64C25/44		70
B64C25/46	11	Brake regulators for preventing skidding or aircraft somersaulting	B64C25/46	B64C25/46		392
B64C25/48	11	differentially operated for steering purposes	B64C25/48	B64C25/48		317
B64C25/50	9	Steerable undercarriages; Shimmy-damping	B64C25/50	B64C25/50		812
B64C25/505	10	{Shimmy damping}	B64C25/50	B64C25/50		302
B64C25/52	9	Skis or runners	B64C25/52	B64C25/52		598
B64C25/54	9	Floats	B64C25/54	B64C25/54		352
B64C25/56	10	inflatable	B64C25/56	B64C25/56		379
B64C25/58	9	Arrangements or adaptations of shock-absorbers or springs (shimmy-dampers B64C25/50)	B64C25/58	B64C25/58		846
B64C25/60	10	Oleo legs	B64C25/60	B64C25/60		1404
B64C25/62	10	Spring shock-absorbers; Springs	B64C25/62	B64C25/62		1870
B64C25/64	11	using rubber or like elements	B64C25/64	B64C25/64		457
B64C25/66	9	Convertible alighting gear; Combinations of different kinds of ground or like engaging elements	B64C25/66	B64C25/66		155
B64C25/68	8	Arrester hooks	B64C25/68	B64C25/68		199
B64C27/00	7	Rotorcraft; Rotors peculiar thereto	B64C27/00	B64C27/00		441
B64C27/001	8	{Vibration damping devices}	B64C27/00	B64C27/00		822
B64C2027/002	9	{mounted between the rotor drive and the fuselage}	B64C27/00	B64C27/00		179
B64C2027/003	9	{mounted on rotor hub, e.g. a rotary force generator}	B64C27/00	B64C27/00		117
B64C2027/004	9	{using actuators, e.g. active systems}	B64C27/00	B64C27/00		165
B64C2027/005	9	{using suspended masses}	B64C27/00	B64C27/00		142
B64C27/006	8	{Safety devices}	B64C27/00	B64C27/00		755
B64C27/007	9	{adapted for detection of blade cracks}	B64C27/00	B64C27/00		28
B64C27/008	8	{Rotors tracking or balancing devices}	B64C27/00	B64C27/00		269
B64C27/02	8	Gyroplanes	B64C27/02	B64C27/02		390
B64C27/021	9	{Rotor or rotor head construction (for helicopters B64C27/32)}	B64C27/02	B64C27/02		216
B64C27/022	10	{Devices for folding or adjusting the blades}	B64C27/02	B64C27/02		89
B64C27/023	10	{Construction of the blades; Coating of the blades}	B64C27/02	B64C27/02		82
B64C27/024	10	{Devices for shifting the rotor axis}	B64C27/02	B64C27/02		26
B64C27/025	10	{Rotor drives, in particular for taking off; Combination of autorotation rotors and driven rotors}	B64C27/02	B64C27/02		202
B64C27/026	10	{Devices for converting a fixed wing into an autorotation rotor and viceversa}	B64C27/02	B64C27/02		38
B64C27/027	9	{Control devices using other means than the rotor}	B64C27/02	B64C27/02		38
B64C27/028	9	{Other constructional elements; Rotor balancing}	B64C27/02	B64C27/02		61
B64C27/04	8	Helicopters	B64C27/04	B64C27/04		1555
B64C27/06	9	with single rotor	B64C27/06	B64C27/06		521
B64C27/08	9	with two or more rotors	B64C27/08	B64C27/08		5392
B64C27/10	10	arranged coaxially	B64C27/10	B64C27/10		1196
B64C27/12	9	Rotor drives	B64C27/12	B64C27/12		2338
B64C2027/125	10	{including toroidal transmissions, e.g. of the CVT type}	B64C27/12	B64C27/12		42
B64C27/14	10	Direct drive between power plant and rotor hub	B64C27/14	B64C27/14		1081
B64C27/16	10	Drive of rotors by means, e.g. propellers, mounted on rotor blades	B64C27/16	B64C27/16		215
B64C27/18	11	the means being jet-reaction apparatus	B64C27/18	B64C27/18		603
B64C27/20	8	Rotorcraft characterised by having shrouded rotors, e.g. flying platforms	B64C27/20	B64C27/20		1365
B64C27/22	8	Compound rotorcraft, i.e. aircraft using in flight the features of both aeroplane and rotorcraft	B64C27/22	B64C27/22		954
B64C27/24	9	with rotor blades fixed in flight to act as lifting surfaces	B64C27/24	B64C27/24		215
B64C27/26	9	characterised by provision of fixed wings	B64C27/26	B64C27/26		1300
B64C27/28	9	with forward-propulsion propellers pivotable to act as lifting rotors	B64C27/28	B64C27/28		1051
B64C27/30	9	with provision for reducing drag of inoperative rotor	B64C27/30	B64C27/30		300
B64C27/32	8	Rotors	B64C27/32	B64C27/32		1960
B64C27/322	9	{Blade travel limiting devices, e.g. droop stops}	B64C27/32	B64C27/32		129
B64C27/325	9	{Circulation-control rotors}	B64C27/32	B64C27/32		86
B64C27/327	9	{Retention means relieving the stress from the arm, e.g. tie-bars}	B64C27/32	B64C27/32		52
B64C27/33	9	having flexing arms	B64C27/33	B64C27/33		351
B64C27/35	9	having elastomeric joints	B64C27/35	B64C27/35		358
B64C27/37	9	having articulated joints	B64C27/37	B64C27/37		168
B64C27/39	10	with individually articulated blades, i.e. with flapping or drag hinges	B64C27/39	B64C27/39		115
B64C27/41	10	with flapping hinge or universal joint, common to the blades	B64C27/41	B64C27/41		145
B64C27/43	11	see-saw type, i.e. two-bladed rotor	B64C27/43	B64C27/43		134
B64C27/45	10	with a feathering hinge only	B64C27/45	B64C27/45		39
B64C27/46	9	Blades	B64C27/46	B64C27/46		416
B64C27/463	10	{Blade tips}	B64C27/46	B64C27/46		258
B64C27/467	10	Aerodynamic features	B64C27/467	B64C27/467		448
B64C27/473	10	Constructional features	B64C27/473	B64C27/473		1117
B64C2027/4733	11	{Rotor blades substantially made from particular materials}	B64C27/473	B64C27/473		41
B64C2027/4736	12	{from composite materials}	B64C27/473	B64C27/473		321
B64C27/48	11	Root attachment to rotor head	B64C27/48	B64C27/48		439
B64C27/50	11	Blades foldable to facilitate stowage of aircraft	B64C27/50	B64C27/50		572
B64C27/51	8	Damping of blade movements	B64C27/51	B64C27/51		377
B64C27/52	8	Tilting of rotor bodily relative to fuselage (of see-saw type construction B64C27/43)	B64C27/52	B64C27/52		1227
B64C27/54	8	Mechanisms for controlling blade adjustment or movement relative to rotor head, e.g. lag-lead movement	B64C27/54	B64C27/54		926
B64C27/56	9	characterised by the control initiating means, e.g. manually actuated	B64C27/56	B64C27/56		247
B64C27/57	10	automatic or condition responsive, e.g. responsive to rotor speed, torque or thrust	B64C27/57	B64C27/57		343
B64C27/58	9	Transmitting means, e.g. interrelated with initiating means or means acting on blades (means acting on blades B64C27/72)	B64C27/58	B64C27/58		113
B64C27/59	10	mechanical	B64C27/59	B64C27/59		372
B64C27/605	11	including swash plate, spider or cam mechanisms	B64C27/605	B64C27/605		599
B64C27/615	11	including flaps mounted on blades	B64C27/615	B64C27/615		234
B64C27/625	11	including rotating masses or servo rotors	B64C27/625	B64C27/625		80
B64C27/635	11	specially for controlling lag-lead movements of blades	B64C27/635	B64C27/635		35
B64C27/64	10	using fluid pressure, e.g. having fluid power amplification	B64C27/64	B64C27/64		138
B64C27/68	10	using electrical energy, e.g. having electrical power amplification	B64C27/68	B64C27/68		241
B64C27/72	9	Means acting on blades	B64C27/72	B64C27/72		305
B64C2027/7205	10	{on each blade individually, e.g. individual blade control [IBC]}	B64C27/72	B64C27/72		24
B64C2027/7211	11	{without flaps}	B64C27/72	B64C27/72		13
B64C2027/7216	12	{using one actuator per blade}	B64C27/72	B64C27/72		61
B64C2027/7222	12	{using airfoil deformation}	B64C27/72	B64C27/72		30
B64C2027/7227	12	{using blowing slots actuated by piezoelectric actuators}	B64C27/72	B64C27/72		4
B64C2027/7233	12	{using higher-harmonic control [HHC]}	B64C27/72	B64C27/72		6
B64C2027/7238	13	{by controlling existing swash plate actuators}	B64C27/72	B64C27/72		7
B64C2027/7244	13	{by using dedicated actuators}	B64C27/72	B64C27/72		8
B64C2027/725	12	{using jets controlled by piezoelectric actuators}	B64C27/72	B64C27/72		13
B64C2027/7255	12	{using one or more swash plates}	B64C27/72	B64C27/72		34
B64C2027/7261	11	{with flaps}	B64C27/72	B64C27/72		16
B64C2027/7266	12	{actuated by actuators}	B64C27/72	B64C27/72		109
B64C2027/7272	13	{of the electro-hydraulic type}	B64C27/72	B64C27/72		25
B64C2027/7277	13	{of the magnetostrictive type}	B64C27/72	B64C27/72		9
B64C2027/7283	13	{of the piezoelectric type}	B64C27/72	B64C27/72		55
B64C2027/7288	13	{of the memory shape type}	B64C27/72	B64C27/72		19
B64C2027/7294	12	{actuated mechanically, e.g. by means of linkages}	B64C27/72	B64C27/72		28
B64C27/78	9	in association with pitch adjustment of blades of anti-torque rotor	B64C27/78	B64C27/78		101
B64C27/80	9	for differential adjustment of blade pitch between two or more lifting rotors	B64C27/80	B64C27/80		105
B64C27/82	8	characterised by the provision of an auxiliary rotor or fluid-jet device for counter-balancing lifting rotor torque or changing direction of rotorcraft	B64C27/82	B64C27/82		1262
B64C2027/8209	9	{Electrically driven tail rotors}	B64C27/82	B64C27/82		140
B64C2027/8218	9	{wherein the rotor or the jet axis is inclined with respect to the longitudinal horizontal or vertical plane of the helicopter}	B64C27/82	B64C27/82		53
B64C2027/8227	9	{comprising more than one rotor}	B64C27/82	B64C27/82		125
B64C2027/8236	9	{including pusher propellers}	B64C27/82	B64C27/82		328
B64C2027/8245	9	{using air jets}	B64C27/82	B64C27/82		178
B64C2027/8254	9	{Shrouded tail rotors, e.g. "Fenestron" fans}	B64C27/82	B64C27/82		209
B64C2027/8263	9	{comprising in addition rudders, tails, fins, or the like}	B64C27/82	B64C27/82		48
B64C2027/8272	10	{comprising fins, or movable rudders}	B64C27/82	B64C27/82		196
B64C2027/8281	10	{comprising horizontal tail planes}	B64C27/82	B64C27/82		151
B64C2027/829	10	{comprising a V-tail units}	B64C27/82	B64C27/82		36
B64C29/00	7	Aircraft capable of landing or taking-off vertically, e.g. vertical take-off and landing [VTOL] aircraft (rotorcraft B64C27/00)	B64C29/00	B64C29/00		1523
B64C29/0008	8	{having its flight directional axis horizontal when grounded}	B64C29/00	B64C29/00		385
B64C29/0016	9	{the lift during taking-off being created by free or ducted propellers or by blowers}	B64C29/00	B64C29/00		480
B64C29/0025	10	{the propellers being fixed relative to the fuselage}	B64C29/00	B64C29/00		1767
B64C29/0033	10	{the propellers being tiltable relative to the fuselage}	B64C29/00	B64C29/00		2192
B64C29/0041	9	{the lift during taking-off being created by jet motors}	B64C29/00	B64C29/00		134
B64C29/005	10	{the motors being fixed relative to the fuselage}	B64C29/00	B64C29/00		149
B64C29/0058	10	{with vertical jet}	B64C29/00	B64C29/00		300
B64C29/0066	10	{with horizontal jet and jet deflector}	B64C29/00	B64C29/00		593
B64C29/0075	10	{the motors being tiltable relative to the fuselage}	B64C29/00	B64C29/00		360
B64C29/0083	9	{the lift during taking-off being created by several motors of different type}	B64C29/00	B64C29/00		66
B64C29/0091	8	{Accessories not provided for elsewhere}	B64C29/00	B64C29/00		550
B64C29/02	8	having its flight directional axis vertical when grounded	B64C29/02	B64C29/02		841
B64C29/04	9	characterised by jet-reaction propulsion	B64C29/04	B64C29/04		101
B64C30/00	7	Supersonic type aircraft	B64C30/00	B64C30/00		829
B64C31/00	7	Aircraft intended to be sustained without power plant; Powered hang-glider-type aircraft; Microlight-type aircraft	B64C31/00	B64C31/00		49
B64C31/02	8	Gliders, e.g. sailplanes (hang-gliders B64C31/028)	B64C31/02	B64C31/02		298
B64C31/024	9	with auxiliary power plant	B64C31/024	B64C31/024		232
B64C31/028	8	Hang-glider-type aircraft; Microlight-type aircraft	B64C31/028	B64C31/028		457
B64C31/0285	9	{Safety devices}	B64C31/028	B64C31/028		76
B64C31/032	9	having delta shaped wing	B64C31/032	B64C31/032		152
B64C31/036	9	having parachute-type wing	B64C31/036	B64C31/036		348
B64C31/04	8	Man-powered aircraft	B64C31/04	B64C31/04		300
B64C31/06	8	Kites (toy aspects A63H27/08; airborne towed targets, e.g. kites F41J9/10)	B64C31/06	B64C31/06		363
B64C2031/065	9	{of inflatable wing type}	B64C31/06	B64C31/06		148
B64C33/00	7	Ornithopters	B64C33/00	B64C33/00		679
B64C33/02	8	Wings; Actuating mechanisms therefor	B64C33/02	B64C33/02		1797
B64C33/025	9	{the entire wing moving either up or down}	B64C33/02	B64C33/02		132
B64C35/00	7	Flying-boats; Seaplanes	B64C35/00	B64C35/00		1323
B64C35/001	8	{with means for increasing stability on the water}	B64C35/00	B64C35/00		232
B64C35/002	9	{using adjustable auxiliary floats}	B64C35/00	B64C35/00		72
B64C35/003	9	{using auxiliary floats at the wing tips}	B64C35/00	B64C35/00		104
B64C35/005	8	{with propellers, rudders or brakes acting in the water}	B64C35/00	B64C35/00		285
B64C35/006	8	{with lift generating devices}	B64C35/00	B64C35/00		173
B64C35/007	8	{Specific control surfaces therefor}	B64C35/00	B64C35/00		48
B64C35/008	8	{Amphibious sea planes}	B64C35/00	B64C35/00		605
B64C37/00	7	Convertible aircraft	B64C37/00	B64C37/00		1081
B64C37/02	8	Flying units formed by separate aircraft (towing B64D3/00; aircraft transported by aircraft B64D5/00; air-refuelling B64D39/00)	B64C37/02	B64C37/02		405
B64C39/00	7	Aircraft not otherwise provided for	B64C39/00	B64C39/00		901
B64C39/001	8	{Flying saucers}	B64C39/00	B64C39/00		612
B64C39/003	8	{with wings, paddle wheels, bladed wheels, moving or rotating in relation to the fuselage (rotorcraft B64C27/00; ornithopters B64C33/00)}	B64C39/00	B64C39/00		124
B64C39/005	9	{about a horizontal transversal axis}	B64C39/00	B64C39/00		499
B64C39/006	9	{about a vertical axis}	B64C39/00	B64C39/00		101
B64C39/008	9	{about a longitudinal axis}	B64C39/00	B64C39/00		192
B64C39/02	8	characterised by special use	B64C39/02	B64C39/02		5828
B64C39/022	9	{Tethered aircraft}	B64C39/02	B64C39/02		316
B64C39/024	9	{of the remote controlled vehicle type, i.e. RPV}	B64C39/02	B64C39/02		7358
B64C39/026	9	{for use as personal propulsion unit}	B64C39/02	B64C39/02		457
B64C39/028	9	{Micro-sized aircraft}	B64C39/02	B64C39/02		195
B64C39/029	8	{Asymmetrical aircraft}	B64C39/00	B64C39/02		28
B64C39/04	8	having multiple fuselages or tail booms	B64C39/04	B64C39/04		361
B64C39/06	8	having disc- or ring-shaped wings	B64C39/06	B64C39/06		293
B64C39/062	9	{having annular wings}	B64C39/06	B64C39/06		267
B64C39/064	10	{with radial airflow}	B64C39/06	B64C39/06		216
B64C39/066	9	{having channel wings}	B64C39/06	B64C39/06		102
B64C39/068	9	{having multiple wings joined at the tips}	B64C39/06	B64C39/06		242
B64C39/08	8	having multiple wings	B64C39/08	B64C39/08		1028
B64C39/10	8	All-wing aircraft	B64C39/10	B64C39/10		692
B64C2039/105	9	{of blended wing body type}	B64C39/10	B64C39/10		279
B64C39/12	8	Canard-type aircraft	B64C39/12	B64C39/12		389
B64C99/00	7	Subject matter not provided for in other groups of this subclass	B64C99/00	B64C99/00		6
B64C2203/00	7	Flying model aircraft, flying toy aircraft	CPCONLY	B64C2203/00		99
B64C2211/00	7	Modular constructions of airplanes or helicopters	CPCONLY	B64C2211/00		527
B64C2220/00	7	Active noise reduction systems	CPCONLY	B64C2220/00		197
B64C2230/00	7	Boundary layer controls	CPCONLY	B64C2230/00		43
B64C2230/02	8	by using acoustic waves generated by transducers	CPCONLY	B64C2230/02		78
B64C2230/04	8	by actively generating fluid flow	CPCONLY	B64C2230/04		791
B64C2230/06	8	by explicitly adjusting fluid flow, e.g. by using valves, variable aperture or slot areas, variable pump action or variable fluid pressure	CPCONLY	B64C2230/06		681
B64C2230/08	8	by influencing fluid flow by means of surface cavities, i.e. net fluid flow is null	CPCONLY	B64C2230/08		78
B64C2230/10	8	by influencing fluid flow by heating using other means than combustion	CPCONLY	B64C2230/10		15
B64C2230/12	8	by using electromagnetic tiles, fluid ionizers, static charges or plasma	CPCONLY	B64C2230/12		163
B64C2230/14	8	achieving noise reductions	CPCONLY	B64C2230/14		174
B64C2230/16	8	by blowing other fluids over the surface than air, e.g. He, H, O2 or exhaust gases	CPCONLY	B64C2230/16		191
B64C2230/18	8	by using small jets that make the fluid flow oscillate	CPCONLY	B64C2230/18		96
B64C2230/20	8	by passively inducing fluid flow, e.g. by means of a pressure difference between both ends of a slot or duct	CPCONLY	B64C2230/20		485
B64C2230/22	8	by using a surface having multiple apertures of relatively small openings other than slots	CPCONLY	B64C2230/22		249
B64C2230/24	8	by using passive resonance cavities, e.g. without transducers	CPCONLY	B64C2230/24		39
B64C2230/26	8	by using rib lets or hydrophobic surfaces	CPCONLY	B64C2230/26		225
B64C2230/28	8	at propeller or rotor blades	CPCONLY	B64C2230/28		186
