The Ultimate design is known as a "Muscle Bipe" because of its extreme aerobatic capability. They fly fast and land hot. The smaller span models under a 40" wingspan are the most difficult to handle usually due to high wingloading. In recent years, lighter construction techniques have allowed the 40" span bipes to become less of a handful to fly and land. The Wings Maker Ultimate 40 design is in this new category.
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http://www.rcuniverse.com/magazine/article_display.cfm?article_id=1124
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that is one sweet plane! nice job flying it
zostritch 2 years ago