ASTM International’s Committee on General Aviation Aircraft (F44) has approved two new standards that cover handling characteristics and icing protection. The standards are part of the committee’s efforts to generate a set of industry standards that help with compliance to regulations from certification authorities.
The Specification for Handling Characteristics of Aeroplanes (F3173/F3173M) establishes airworthiness design standards for general handling characteristics in flight, on ground and on water.
ASTM member Marten Bosman says that this standard will allow plane manufacturers and others to select a method for certification that is appropriate for their plane, rather than adapting the plane to the demands of the regulations. “This is a completely new way of thinking about certification in aviation,” Bosman says. “In the end, the product specified will be safe while at the same time reducing time and cost of certification.”
The standard covers aircraft ranging from simple two-seat light aircraft to 19-seat high-speed business jets. According to Bosman, aircraft manufacturers will use the standard and regulatory bodies will reference it. Overall, he notes that the standard provides “simple methods for simple aircraft,” and “more complex methods for complex aircraft.”
The Specification for Icing Protection for Small Airplanes (F3120/F3120M) will help show that aircraft can operate safely in various icing environments. According to ASTM member Dennis Regnier, the standard gives manufacturers a clear path to meet regulatory requirements for aircraft icing. The standard primarily supports systems designed to protect planes from in-flight icing and to help ensure that planes can operate safely within defined conditions.
According to Regnier, the standard could support a wide variety of small planes, from personal planes to business jets.
“Aircraft manufacturers will use this standard to ensure that new planes meet the appropriate sections that apply to their type certificate from the certification authority,” says Regnier. “Also, companies that design and make ice protection systems, air data probes, and other equipment will use the standard to ensure that products they supply to aircraft manufacturers meets certification needs.”
Additionally, Regnier notes that companies trying to receive certificates to add ice protection systems or to make icing-related modifications to aircraft will also use the standard.
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