Page images
PDF
EPUB

5.812

mechanism shall be capable of withstanding these loads without undue distortion so that when, in the case of a belt designed for one person, the load is relieved to 250 pounds (113 kg.), and in the case of a belt designed for two persons, the load is relieved to 500 pounds (227 kg.), the release mechanism can be operated by hand with a simple operation. The force necessary to open the buckle shall not exceed 45 pounds (20.4 kg.) in the case of either the single or double belt.

Impact Test. A safety belt for one person shall be capable of withstanding an impact load of 312 foot pounds (43 kgm.), and for two persons an impact load of 625 foot pounds (86 kgm.), as represented by dropping freely 250 and 500 pound (113 and 227 kg.) weights respectively 15 inches (38 cm.) onto the belt, simulating the manner in which a person's weight would be applied in a crash. The height of the drop shall be measured before the impact test by allowing the weight to rest on the belt and then raising the weight 15 inches (38 cm.). The quick release mechanism shall be capable of withstanding this impact without undue distortion and shall be of such design that it can be operated by hand with a simple operation while such weights respectively are still suspended in the belt after the impact test. The force necessary to open the buckle shall not exceed 45 pounds (20.4 kg.) in the case of either the single or double belt. The safety belt must, in the case of belts designed for one person, arrest the motion of the falling weight within a distance of 4 inches (10 cm.), and in the case of belts designed for two persons, within a distance of 6 inches (15 cm.), measured vertically from the point 15 inches (38 cm.) below the starting point of the weight.

Waist-Shoulder Safety Belts

Static Tests. The method of testing shall be in accordance with that prescribed in Section 5.811 except that the shoulder straps shall be in place in the release mechanism. With the 1,000 (454 kg.) pound load in the waist portion of the belt relieved to 250 pounds (113 kg.), a load of 250 pounds (113 kg.) shall be applied to each shoulder strap to simulate a forward and upward load at a 45° angle due to nose-over. The load in each shoulder strap shall then be relieved to 60 pounds (27 kg.) and with the waist portion of the belt assembly still loaded to 250 pounds (113 kg.), the quick release mechanism shall be capable of withstanding these loads without undue distortion so that it can be operated by one hand with a simple operation. The force necessary to open the buckle shall not exceed 45 pounds (20 kg.).

Impact Test. The method of testing shall be in accordance with that prescribed in Section 3.812 except that the shoulder straps shall be in place merely to complete the release mechanism.

5.82 5.821

5.822

ANNEX H

AIRCRAFT REGISTRATION AND IDENTIFICATION MARKS

DEFINITIONS

(a) Aircraft. Aircraft shall comprise all apparatus or contrivances which can derive support in the atmosphere from reactions of the air.

(b) Aerostat. Aerostat shall mean an aircraft supported in the air statically

(c) Balloon. Balloon shall mean an aerostat (free or captive) non-mechanically-driven.

(d) Airship. Airship, shall mean a mechanically-driven aerostat with means of directional control.

(e) Aerodyne. Aerodyne shall mean an aircraft whose support in flight is derived dynamically from the reaction on surfaces in motion relative to the air.

(f) Aeroplane (Airplane). Aeroplane (airplane) shall mean a mechanically-driven aerodyne supported in flight by aerodynamic reactions on surfaces remaining fixed under the same conditions of flight.

(g) Glider. Glider shall mean a non-mechanically-driven aerodyne supported in flight by aerodynamic reactions on surfaces remaining fixed under the same conditions of flight.

(h) Helicopter. Helicopter shall mean an aerodyne supported in flight by aerodynamic reactions on rotating surfaces which are mechanically-driven.

(i) Gyroplane. Gyroplane shall mean a mechanically-driven aerodyne supported in flight by aerodynamic reactions on rotating surfaces which derive their rotary force from reactions of the air.

() Ornithopter. Ornithopter shall mean an aerodyne supported in flight by aerodynamic reactions on flapping surfaces which are mechanically-driven.

253

627038—45

-17

(Spherical free balloon Non-mechanically-driven: Bal

Non-spherical free balloon loon

(Spherical captive balloon (Lighter-than-air aircraft or aero

Non-spherical captive balloon*
stat

Rigid airship
Mechanically-driven: Airship

Semi-rigid airship

Non-rigid airship
Aircraft

Land glider
Kite

Sea glider**

Amphibian**
dyne

Land gyroplane
Gyroplane

Sea gyroplane**
Mechanically-driven

Amphibian gyroplane**

Land helicopter
Helicopter

Sea helicopter**
Amphibian helicopter**

Land ornithopter
(Ornithopter

Sea ornithopter*

Amphibian ornithopter** *“Generally designated "kite-balloon". **"Float" or "boat" may be added as appropriate,

[graphic]

TABLE OF GENERAL CLASSIFICATION OF AIRCRAFT

Free balloon

Captive balloon

Non-mechanically-driven

sGlider

Landplane (Aeroplane

Seaplane* Heavier-than-air aircraft or

aero

SECTION I

General

(a) The nationality and registration marks borne by aircraft shall be constituted by a group of symbols consisting of a letter or letters, followed by letters or numbers.

(b) The nationality and registration marks borne by aircraft shall consist of a nationality letter or letters, which may be followed by a symbol denoting the class of airworthiness, and shall be followed by numbers or letters.

(c) If letters are used as registration identification marks, a hyphen shall be placed immediately after the nationality letter or letters and, where it appears, the airworthiness symbol. Each State, party to this Convention, which employs airworthiness symbols shall advise every other State annually of the symbols used by it.

(d) The nationality and registration groups shall be composed as indicated in the Table of Aircraft Nationality Marks.

SECTION II

Location of Marks on Aircraft The nationality and registration marks shall be painted on the aircraft (or affixed by any other means insuring a similar degree of permanence) in the following manner:

(a) Aerostats. In the case of airships the marks shall be painted near the maximum cross section so as to appear on both sides and on the

upper surface equidistant from the marks on the sides. In the case of balloons the marks shall appear twice near the maximum horizontal circumference of a spherical balloon and shall be placed as far as possible from one another and, on a non-spherical balloon, near the maximum cross section on both sides immediately above the rigging band on the points of attachment of the basket suspension cables.

In the case of all aerostats, the side marks shall be visible both from the sides and ground.

(b) Aeroplanes (Airplanes). The marks shall be painted once on the lower surface of the main plane structure and once on the upper surface of the main plane structure, the top of the letters to be toward the leading edge. They shall also be painted along each side of the fuselage or of the body between the main planes and the tail planes, or on each side of the vertical tail surfaces.

(c) Other aerodynes. The provisions of paragraph (b) shall be applicable to other aerodynes in so far as the latter comprise corresponding elements on which marks could be placed.

SECTION III

Measurements of Nationality and Registration Marks (a) Aerostats. In the case of airships the height of the marks shall

equal to at least one twelfth of the perimeter of the airship at the maximum cross section.

be

In the case of balloons the height of the marks shall be equal to at least one fifteenth of the maximum horizontal circumference of a spherical balloon and in the case of a non-spherical balloon, equal to at least one twelfth of the perimeter of the balloon at the maximum cross section.

(b) Aeroplanes (Airplanes)

Wings. The marks to be borne on the wings shall, as regards each group of marks, be formed of letters or numbers of equal height which shall be at least four fifths of the mean cord. This height need not exceed 40 inches or 100 centimeters,

Fuselage or body. The marks to be borne on the fuselage or body of an aeroplane (airplane) shall, as regards each group of marks, be formed of letters or numbers of equal height. These marks shall be as large as possible without interfering with the visible outlines of the fuselage or body, and need not exceed 40 inches or 100 centimeters.

Tail surfaces. If marks are borne on the vertical tail surfaces of aeroplanes (airplanes), in lieu of the fuselage, they shall be located on both sides of the upper half of the tail surfaces of size as large as a 2-inch or 5-centimeter margin will permit and in a position which will give the greatest size.

Gliders. On gliders the letters and numbers shall be displayed in the same manner and place prescribed for aeroplanes (airplanes), except the minimum height shall be 20 inches or 50 centimeters where practicable.

(c) Other aerodynes. The provisions of paragraph (b) shall be applicable to other aerodynes in so far as the latter comprise corresponding elements on which marks could be placed.

(d) In the case of all aircraft not otherwise specified, the nationality and registration marks need not exceed 100 inches or 250 centimeters in height.

SECTION IV

Lettering

(a) The letters shall be capital letters in Roman characters without ornamentation. Arabic numbers shall be used, without ornamentation, if numbers instead of letters are used for identification markings.

(b) The width of each letter and the length of the hyphen shall be two thirds of the height of the letters, and the thickness of the lines forming the letters and the hyphen shall be one sixth of that height. (c) As nearly as the constructional features of the aircraft admit

, each letter shall be separated from the letter which immediately precedes or follows it (the hyphen for this purpose being regarded as a letter) by a space equal to half the width of the individual letters.

(d) In order to render the marks clearly legible, the lines forming the letters and the hyphen shall be solid and of a uniform color contrasting clearly with the background on which they are placed.

« ՆախորդըՇարունակել »