F3F Carbon D-Box
SoaringUSA again has made available the greatest F3F racing machine from the makers of the Willow F3F and likewise designed by Ian Mason.
Continuing the philosophy of incorporating high performance and quality in an affordable package, The Merlin's development offer just that and more. The thinking behind the Merlin design is to create a model that is more responsive and sensitive to setting changes, increasing it's ability to be fine tuned. The Merlin's zero wing incidence keeps the drag to absolute minimum. Merlin just gets up and goes to where you point it.
Merlin's wing section is a (Dirk Pflug) DP-IM-F3f and the planform has a straighter leading edge that increases surface area making dynamic turns more effective. The wing tips are shaped to maximize the Schumann efficiencies, achieving a superb balance between handling, stall and tip drag, while also contributing to the reduction of any tendency to fish-tail. The large ailerons mean small movements in race trim. Although, with a mm or so of camber, Merlin will slow down and scratch, it's really when working the compression and hitting the sweet spot on a slope, that Merlin starts to deliver the magic. Extra stiffness has been introduced in the fuselage, as well as it being comparatively shortened, to create more aggressive turning potential. Merlin's shorter boom offers a better turn with more ping. Merlin's fuselage inherits the girth of Willow for strength and the canopy access is set comfortably forward from the wing leading edge to allow for an easy and very secure grip on launch.
Video by Bernd Brunner