The Thrust unit with Coanda effect - TUCE as drag-reducing propulsion system and can be deployed in a versatile hover-capable flying aircraft to lift heavy loads efficiently. Scalable with a combination of stable overlapping flight roles and modes from horizontal take-off through assisted low speed and stationary hover through to high speed winged flight and back. TUCE mainly employs a multiple electric fan arrangement and new configuration creating a very efficient air distribution which are used for vertical lift and also for horizontal propulsion. As an unmanned system or as autonomous / piloted VTOL system, this application offers increased operational versatility, stability, scalability, maneuverability, energy efficiency, load capacity, performance, low noise and increased safety potential. Other advantages include the simplified mechanical construction over helicopters with a series of multiple redundant electric motors with independent adjustment for directional thrust. Blade destruction will not cause catastrophic power loss from the multiple motors. TUCE offers extremely reduced footprint and consequently low safety issues when operate in city or other similar environments. TUCE is a scalable concept and can be reproduced from small UAVs to large or very large aircraft.