Kolb’s Firefly, developed several years ago, is a true-blue entry to the Part 103 ultralight rule. It was purpose-designed to accommodate a more powerful engine to meet customer interest, but to do so while staying within Part 103 254-pound empty weight mandate. It does! And with the legendary good Kolb handling paired with a more potent powerplant, here’s a low-cost option to keep you smiling after a day’s flying.
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