Equipped with the latest modern-day innovations and upgrades, the E-flite® Ultimate 3D biplane raises the bar for scale, sport and precision aerobatic flying — plus all-out 3D performance too! Stronger, faster metal-geared servos and ball-link equipped linkages deliver positive, precise control while the beveled hinge lines make it possible for the control surfaces to deflect to high angles for extreme 3D capabilities. The new power system, with a specially-tuned motor and prop, is compatible with 3S AND with 4S batteries to deliver extra power and unlimited vertical capability — no modifications required. It also features exclusive Smart Technology via the Spektrum™ Avian™ 60-amp Smart ESC, and the BNF® Basic version is equipped with an AR637TA receiver that offers full-range telemetry including real-time battery voltage, current, temperature and more to compatible transmitters. Plus, with 7+ channel transmitters, the optional-use motor reversing function adds special ground handling and other unique capabilities. The composite-reinforced, hollow-core EPO construction provides a lightweight but durable airframe that’s factory-finished in a striking, ready-to-admire trim scheme. Best of all you can have the Ultimate 3D flight-ready in less time than it takes to charge a battery because no glue is required for final assembly, and installation/removal of the wings is tool-free for easy storage and transport. This makes it the easiest and best choice for almost any pilot looking for their first or next biplane!