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1R MISCELLANEOUS
1N Noise abatement
1A Lightning arresters and static eliminators
1TD Trailing devices
2 COMPOSITE AIRCRAFT
3 Trains
3.1 MISSILE STABILIZATION OR TRAJECTORY CONTROL
3.15 Automatic guidance
3.16 Optical (includes infrared)
3.17 Optical correlation
3.18 Celestial navigation
3.21 Attitude control mechanisms
3.22 Fluid reaction type
3.23 Stabilized by rotation
3.24 Externally mounted stabilizing appendage (e.g., fin)
3.28 Longitudinally rotating
3.29 Radially rotating
3.3 Extending beyond rear of missile
159 Space station
160 Reentry vehicle
161 Rendezvous and docking
163 Environmental control
164 Attitude control
165 By gyroscope or flywheel
166 By magnetic effect
167 By gravity gradient
168 By solar pressure
169 By jet motor
170 By nutation damper
171 With attitude sensor means
172 With propulsion
173 With solar panel
158A Exterior surface air resistance heat control
4R AIRCRAFT, HEAVIER-THAN-AIR
5 Airplanes, weight diminished by bouyant gas
6 Airplane and helicopter sustained
7R Convertible
7A Rotary wing
7B Tail sitters
7C Tilting wing
8 Airplane and auto-rotating wing sustained
9 Airplane and paddle wheel sustained
10 Airplane and cylindrical rotor sustained
11 Airplane and beating wing sustained
12.1 Airplane and fluid sustained
12.3 Dual propulsion
12.5 With thrust diverting
13 Airplane sustained
14 Aerial torpedoes
15 Fluid propelled
17.11 Helicopter or auto-rotating wing sustained, i.e., gyroplanes
17.13 Automatic or condition responsive control
17.15 With safety lowering device
17.17 With landing, mooring, or nonaerial propelling or steering gear
17.19 With auxiliary propulsion, counter-troque or steering device
17.23 Having plural lifting rotors
17.25 Lifting rotor having lift direction varying means
17.27 Lifting rotor supports, e.g., pylons
19 Paddle wheel sustained
20 Feathering
21 Cylindrical rotor sustained
22 Beating wing sustained
23R Fluid sustained
23A Lifting thrusters
23B Dual propulsion means, horizontal and vertical
23C Circular configuration
23D Thrust diverters
4A Body attached
24 AIRCRAFT, LIGHTER-THAN-AIR
25 Airships with sustaining wings
26 Airship and helicopter sustained
27 Airship and paddle wheel sustained
28 Airship and beating wing sustained
29 Airship and fluid sustained
30 Airships
31 Balloons
32 With parachutes
33 Captive
34R AIRCRAFT SUSTENTATION
35R Sustaining airfoils
36 Lifting fuselages
37 Lifting struts
38 Resiliently mounted
39 Rotatable
198 With lift modification
199 By vortex generator or dissipator
200 By characteristic of airfoil's skin
202 With landing gear
203 Condition responsive
204 By controlling boundary layer
205 With ionic or electrostatic surface
206 With rotating member
207 With blowing
208 And suction
209 With suction
210 With nose slot
211 Having trailing edge flap
212 Having trailing edge flap
213 By flap and/or spoiler
214 At leading edge
215 At trailing edge
216 Variable gap type, e.g., "Fowler Flap"
217 Plural, relatively pivotable
45R Arrangement
46 Variable
47 Dihedral
48 Incidence
49 Folding
35A Compressible flow
34A Annular airfoils
50 AIRCRAFT PROPULSION AND STEERING ON LAND OR WATER
51 AIRCRAFT, STEERING PROPULSION
53R AIRCRAFT POWER PLANTS
54 Mounting
55 Arrangement
56 Tilting
57 Radiator arrangement
58 Auxiliary
59 High altitude
60 Transmission of power
61 Power plant using airship gas as fuel
53B Air intakes
62 AIRCRAFT PROPULSION
63 Launching
66 Tilting
67 Body encircling
68 Elongated
69 Contra-propeller arrangements
70 Paddle wheel
71 Reciprocating propeller
72 Beating wing
74 Explosive jet
73B Vacuum induced by radial flow
73C Radial outward and downward flow
75R AIRCRAFT CONTROL
175 Electric course control
176 Spaceship control
177 Multiple-axis altitude stabilization
178 Trim control
179 By change in bank
180 By change in altitude
181 By change in pitch, angle of attack or flight path
182 By change in speed
183 Of aircraft on its landing course
184 By steering or yaw
185 And vertical glide path control
186 Vertical glide path control
187 With "flare-out" detection
188 Slope control by throttle
189 By remote radio signal
190 Of pilotless aircraft
191 Acceleration control
192 With "dead-zone" control
193 With "softener" circuit
194 Monitoring circuit or response
195 Self-adaptive control
196 Override of automatic control by human pilot
197 By engaging manual control system
79 Gyroscope actuated
80 Gravity actuated
81 Operated by landing
82 Vane operated
76A Motor torque control of flaps or tabs
76B Velocity operated devices
76C Gust compensators
76J Steerable jets
220 Pilot operated
221 Control system
222 Other than hand or foot actuated
224 With locking means
225 With dual purpose surface structure (e.g., elevons)
227 With electric control
230 With variable output
231 With interengaging gearing
232 With cable and linkage
235 Rudder bar and pedal
236 Electrical pickup
237 Three-way steering, single control
87 Rudders and empennage
88 Rudders universally mounted
89 Elevators both front and rear
90R Ailerons and other roll control devices
90A Roll control spoilers
90B Balanced air pressure
91 Vertical fins
92 Stabilizing propellers
93 Stabilizing weights
94 Ballast storage and release
95 Ballast making
96 Airship control
97 Buoyancy varying
98 Gas bag inflation
99 Gas release
75A Flutter prevention
102A Interconnected elements
104R Resiliently mounted
105 Water landing
106 Flying boat
109 Tail supports
110R RETARDING AND RESTRAINING DEVICES
111 Wheel brake arrangement
112 Water brake arrangement
113 Aerodynamic retarders
110B Thrust reversers
110C Cable or net support
110D Aerodynamic braking
110E Landing platforms
110G Arresting hoods
110H Friction brakes
114R LANDING FIELD ARRANGEMENT
115 Mooring devices
114B Blast deflectors
117R AIRCRAFT STRUCTURE
118.1 Load (e.g., cargo) accommodation
118.2 Removable, load bearing, airframe section
118.5 Passenger or crew accommodation
118.6 Seating arrangement: berth or berthage
119 Fuselage and body construction
121 Shields and other protective devices
122R Seats and safety belts
122AB Catapult and rocket combined
122AG Restraint positioning and protective devices
123 Airfoil construction
125 Airship hull construction
126 Airship skin construction
127 Airship load attachment
128 Airship gas cell construction and arrangement
129.2 Fire prevention devices
118.3 Displaceable to function as ramp
130 Aerodynamic resistance reducing
131 Joints and connections
132 Skin fastening devices
133 Materials of construction
134A Flexible surfaces
134B Heating fluid in airfoil
134C Deicing fluid on airfoil exterior
134E Nature of surface
134F Initiators and indicators
135A Aircraft refueling
135B Flexible containers
135C Fuel balancing systems
136 Material discharging and diffusing
137.1 Passenger or cargo loading or discharging
137.3 Aerial cargo unloading by parachute extraction
137.4 Releasable, externally mounted cargo
138R SAFETY LOWERING DEVICES
139 Entire aircraft
140 Passenger compartment
143 Garment attached
144 Aircraft element convertible to parachute
145 Canopy construction
146 Inflated bracing
147 Storage and release
149 Opening devices
150 Timing mechanism
151A Parchute harness connection
151B Parachute load releasing
152 Control devices
154 Airplane type
900 LIGHTWEIGHT, WINGED, AIR VEHICLE (E,G,. ULTRALIGHT OR HANG GLIDER)
901 Having delta shaped wing
902 Having parachute type wing
904 Miscellaneous hardware or control
905 INFLATABLE EVACUATION SLIDE
FOR000 CLASS-RELATED FOREIGN DOCUMENTS
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