|  | B |
SECTION B — PERFORMING OPERATIONS; TRANSPORTING

TRANSPORTING

|  | B64 |
AIRCRAFT; AVIATION; COSMONAUTICS

|  | B64B |
LIGHTER-THAN-AIR AIRCRAFT (ground installations for aircraft in general Fulltext... Hierarchy... Expanded...B64F)

|  | B64C |
AEROPLANES; HELICOPTERS (air-cushion vehicles Fulltext... Hierarchy... Expanded...B60V)

|  | B64C |
Note(s) 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]

|  | B64C |
Subclass index
STRUCTURES, FAIRINGS |
Features common to different elements | 1/00
Fuselages; wings; stabilising surfaces | 1/00; 3/00; 5/00
Other structural elements | 7/00
PROPELLERS, FLIGHT CONTROL |
Propellers | 11/00
Adjustable control surfaces or members; control systems | 9/00; 13/00
Control by jet reaction | 15/00
Stabilisation and controls not otherwise provided for | 17/00, 19/00
MODIFYING LIFT BY ACTION ON AIR-FLOW | 13/00, 21/00, 23/00
ALIGHTING GEAR | 25/00
AIRCRAFT KINDS AND THEIR COMPONENTS NOT OTHERWISE PROVIDED FOR |
Supersonic | 30/00
Seaplanes | 35/00
Aircraft intended to be sustained without power plant; powered hand-glider-type aircraft; microlight aircraft | 31/00
Convertible aircraft | 37/00
Vertical-take-off or landing aircraft | 29/00
Rotorcraft; ornithopters | 27/00; 33/00
Others | 39/00

|  | B64D |
EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLYING SUITS; PARACHUTES; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS

|  | B64D |
Subclass index
FLIGHT ARRANGEMENTS ON AIRCRAFT |
Of power plant and auxiliaries | 27/00, 29/00, 33/00, 41/00
Of power-plant controls and transmissions | 31/00, 35/00
For fuel supply | 37/00, 39/00
Of flying instruments | 43/00
USE OF AIRCRAFT |
For military purposes | 1/00, 7/00
For persons or freight | 9/00 - 13/00
SAFETY OR EMERGENCY ARRANGEMENTS OR EQUIPMENTS |
For the aircraft |
against icing; against lightning | 15/00; 45/02
for landing | 17/80, 45/00
For jettisoning or other means concerning fuel | 37/26, 37/32
For persons or material |
by holding or ejecting means | 25/00
by parachutes; parachuting | 17/00 - 21/00; 23/00
Other safety, emergency, or protection means | 10/00, 25/00, 45/00
EQUIPMENT FOR OPERATIONS PERFORMED DURING FLIGHT |
Releasing or receiving articles, fluent materials, or another aircraft | 1/00, 5/00
Towing, fuel replenishing | 3/00, 39/00
OTHER ARRANGEMENTS OR EQUIPMENT | 47/00

|  | B64F |
GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS

|  | B64F |
Note(s) In this subclass, the following terms or expressions are used with the meanings indicated: "installations" embraces equipment, including mobile equipment, peculiar to use in connection with aircraft and not fitted thereto; "ground installations" embraces waterborne installations. [3]

|  | B64G |
COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR (apparatus for, or methods of, winning materials from extraterrestrial sources Fulltext... Hierarchy... Expanded...E21C 51/00)

|  | B64G |
Note(s) This subclass covers only vehicles, equipment or the like, which are specially adapted for cosmonautics. This subclass does not cover vehicles and equipment applicable to both cosmonautics and aeronautics, which are covered by the appropriate aeronautical subclasses of class Fulltext... Hierarchy... Expanded...B64. In this subclass, the following term is used with the meaning indicated: "cosmonautics" includes all transport outside the earth's atmosphere, and thus includes artificial earth satellites, and interplanetary and interstellar travel.