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Unveiling the First A320 Sharklets in the U.S.!
We’re excited to unveil today the first A320 Sharklet in the U.S.! The aircraft – registration number N821JB – is also the first of any North American airline to feature the fuel-saving structures. Sharklets are newly desi...... (blog.jetblue.com) さらに...
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...so these are basically Winglets called something else, probably to avoid licensing fees??
Definitely. There was a lawsuit over the patents for the "winglets" which have been being used on Boeing aircraft for years now.
http://flightaware.com/live/flight/N821JB
