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Airwolf Aerospace has received a supplemental type certificate (STC) from Brazil's civil aviation authority (ANAC) for the installation of its True Blue Power TB17 lithium-ion batteries in various helicopter models. This certification follows FAA approval.
This STC approval applies to several helicopter models, including Airbus H125/AS350, AS355, EC-120, and H130/EC130; Bell 206A/B and 206L/L1/L3/L4; Enstrom 480B; and MD 369/500.
The TB17 lithium-ion battery, which is TSO-certified, offers several advantages compared to traditional battery systems. It is up to 63% lighter than traditional batteries, which increases a helicopter’s useful load. It also provides faster, more reliable engine starts, with a higher voltage for improved performance.
It also features rapid charging capability, achieving a full charge in four to 10 minutes after engine start. It has a longer lifespan than traditional batteries, with an average of eight years before replacement is needed, and features a two-year reduced maintenance cycle. The battery also has an automatic built-in heater, allowing it to function in extremely cold weather.