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These super-light models are at the top of the 3D aerobatic world today. Available in three scale renditions of real aerobatic competition aircraft, you have choices of the Sukhoi SU-31, the CAP-232, or the EDGE 540T (Edge 540 on sale Worldwide from December 2007).
Constructed of hand-picked light balsa and ply, the fuselage, wing, and tail groups carefully follow the lines of the full-size models, but the Hyperion engineers have stretched wing area and control surfaces for controllable high-alpha performance at very low flight speeds. You don't have to give up scale beauty for this performance: The hand painted fiberglass cowls are a work of art. The pre-painted super-clear canopies are already mounted on a wood frame, with instant-access retention systems. Battery access in a few seconds keeps things easy and safe...
In terms of size, the "25e" models can be related to "Engine 25" (0.25ci) models, but the little "e" means they are 100% electric. Designed from the "ground up" around the extremely powerful Hyperion Z3019-12 motor, you have to experience the performance yourself to believe it. At about 200W per pound, "Unlimited Vertical" is just the beginning!
The models have extremely light wing loading in the range of 14 ounces per square foot! Their light weight coupled, generous wing area, and extremely rigid construction make them razor sharp performers in the 3D arena. One test pilot said: "It's like Hyperion includes a set of 'pro thumbs' in every box!".
These are the kind of models that get taken out every weekend; they're just that much fun to fly! The wings of SU-31 and EDGE 540 models are joined by a large-diameter carbon tube, and removable in a matter of a few seconds for easy transport to the field, and for storage at home (CAP232 has a stong, light single-piece wing).
Bigger flies better, and these larger 3D models is also very easy to see at a distance. That sharpens the maneuvers of any pilot, and is especially helpful if your eyes aren't "what they used to be". Contrasting stripes on wing bottom really help with orientation... | 
