Commonwealth Consolidated Regulations Commonwealth Consolidated Regulations(1) There are 4 kinds of unmanned free balloon. These are defined (in order of ascending size) in the following 4 subregulations.
(2) A small balloon is an unmanned free balloon that:
(a) has a diameter of 2 metres or less at launch; and
(b) either:
(i) is not carrying a payload; or
(ii) is carrying a payload with a combined mass of 50 g or less.
(3) A light balloon is an unmanned free balloon that:
(a) carries a payload to which all of the following apply:
(i) the payload does not include a heavy package;
(ii) the payload has a combined mass of more than 50 g but less than 4 kg;
(iii) if a rope or other device has been used for the suspension of the payload--an impact force of less than 230 N is required to separate the suspended payload from the balloon; or
(b) has a diameter of greater than 2 metres at launch and either:
(i) is not carrying a payload; or
(ii) is carrying a payload with a combined mass of 50 g or less.
(4) A medium balloon is an unmanned free balloon that carries a payload to which all of the following apply:
(a) the payload includes at least 2 packages but no heavy packages;
(b) the payload has a combined mass of at least 4 kg but less than 6 kg;
(c) if a rope or other device has been used for the suspension of the payload--an impact force of less than 230 N is required to separate the suspended payload from the balloon.
(5) A heavy balloon is an unmanned free balloon that carries a payload to which any of the following apply:
(a) the payload includes a heavy package;
(b) the combined mass of the payload is at least 6 kg;
(c) if a rope or other device has been used for the suspension of the payload--an impact force of 230 N or more is required to separate the suspended payload from the balloon.
(6) A heavy package means a package that:
(a) weighs at least 3 kg; or
(b) weighs at least 2 kg and has an area density of more than 13 g per cm 2 .
(7) For paragraph (6)(b), the area density of a package is worked out by dividing the total mass in grams of the package by the area in square centimetres of its smallest surface.