Welcome to Gress Aeronautics, where we develop, manufacture and sell high speed dual-propeller VTOL air vehicles capable of close-in precision manuevering and hovering.

Revolutionary propeller-as-CMG technology stabilizes our vehicles so well that any more than two propellers is redundant and unecessary. And, unlike a quadrotor's, our propellers tilt, so the whole aircraft doesn't have to for manuevering and forward flight. These features translate to greater agility and gust tolerance, higher speeds, and a level, compact platform.

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MODEL SIZES

Our models are available in three sizes, ranging from the 10 oz. Vector SE (top right) and payload-capable XE to the 6-ft. long, 15-lb. eVader 6D (right, in red), able to carry a 5 lb. payload. All except the eVader 6D use single-axis oblique tilting for helicopter-like control. The 6D, with it's dual-axis tilting, is capable of more advanced independent-6-axis control, such as stationary pitching for landing on severe inclines.

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nVADERS DE/G2/SE FOR GUSTS, PAYLOADS, ENDURANCE, OBSTACLES/SPEED & BUDGETS

Our mid-size nVader models can carry 1 lb. payloads, and collapse to backpack size and back again in a flash. Higher disc loadings than the Vectors' make all nVaders hover steadfast in strong winds and gusts. With its protective propeller shrouds the 3.2 lb. DE is perfect for manuevering within confined spaces comfortably. The lower priced, 2.5 lb. G2, stripped of propeller shrouds and their supports, trades that for incredible speed. For flyers on an even tighter budget, we also have the nVader SE - a G2 without spinners or nacelle covers. All models hover with an 8 oz. payload for 16.5 minutes. Easy access to large (13x5") unobstructed payload area spanning the vehicle center of gravity. nVaders come with a 5V power supply for payload electronics.

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Please note that, as we continue to improve our products, some details may not be exactly as shown. Most kits ship within 4 weeks of order.