AMC 31GB.49(c) Control systems

• ED Decision 2011/012/R found in: CS-31GB Initial issue - Free Gas Balloons (Dec 2011)

AMC 31GB.49(c) Control systems ED Decision 2011/012/R The envelope is protected against bursting when it is equipped with an appendix or valve that can automatically release gas at the rate of at least 3% of the total volume per minute at the balloon’s maximum operating pressure. The appendix or valve should be designed to prevent possible blockage during flight due to e.g. freezing, jamming or a reduction of the outflow opening due to deflection of the envelope and/or the outflow opening.