Developed specifically to address the new FAA aircraft certification regulations, SLD Guard protects against the threat of supercooled large drops (SLD).
Whilst less common than standard small droplet icing, SLD icing can occur treacherously fast due to the larger size of SLD drops (more than 0.05mm). Freezing only partially on contact, the drop is swept back by the airflow until it is fully frozen in a layer of clear ice, impacting a greater area of the aircraft’s surfaces.
An anti-ice and de-ice protection system, SLD Guard is designed to handle rapid ice accumulation on aircraft wings at critical flight controls. It is certified for Flight Into Known Icing and allows aircraft to safely withstand unexpected icing encounters of freezing rain and drizzle as defined by Appendix O of the Federal Aviation Regulations.
SLD Benefits
SLD Guard now permits new aircraft that require certification, to be certified for continuous operation in both the entire Appendix C and Appendix O envelopes.
Meets FAA regulations
for FIKI conditions with SLD.
Anti-Ice and De-Ice
to tackle ice accumulation.
Simplifies certification
in NextGen aircraft.
FAA Regulation
In November 2014, the FAA mandated that U.S. aircraft manufacturers must show that certain newly manufactured transport airplanes under 60,000lb can operate safely in freezing drizzle or freezing rain; conditions that constitute the icing environment known as “supercooled large drops”. The standard also includes ice crystal weather conditions as well.
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