We created the first affordable, professional UAV
Our fuselage is not only aerodynamic, but also provides a massive amount of usable space. The fuselage was built in a slight trapezoidal shape to minimize fuselage/wing intersection, drag and interference. It was also designed to be efficient in cooling. It was designed with a high pressure region in the nose and a low pressure region behind the wing, on top and below the motor mounting area. This acts to create a pressure differential, essentially "pulling" air through the fuselage. The layout allows for smarter cooling, by cooling off lower temperature components towards the front, and higher temperature components in the rear (motor). The cooling exhaust placement was purposely in an area with turbulent airflow, so as to not disturb the otherwise laminar airflow over the rest of the fuselage.
The tail is an inverted V, which improves efficiency while decreasing drag. This V shape is also naturally more stable in banked and coordinated turns. Finally, it allows for a twin tail boom design and large diameter propeller while also raising ground clearance of the tail on landing and takeoff.
The wing consists of an optimized foil and a forward swept planform designed to ensure low stall speeds, high max efficiency and a large cruise window. This design also reduces the chance of tip stalling on approach. The Albatross wing has a high aspect ratio of 13.6. Although possible to go with a higher aspect ratio, we chose not to. By maintaining our aspect ratio at 13.6, it allows our custom in house foil selection to be tailored for a wider flight envelope. It also allows us to remain within our 3m size constraint, while maintaining adequate wing area. The wing has two built in component bays allowing for adequate separation of receivers, transmitters and GPS units. Finally, the drooped wing tips are designed to reduce drag via the reduction of tip vortices, as well as increase aileron effectiveness at near-stall conditions.
The number one reason for keeping airframes small is due to transportation and storage. The Albatross UAV is designed to be easily transported, taken apart and stored. Not only does this make things easier for the end user, but it also reduces shipping costs door to door.
Wingspan: 3 meters
Fuselage: 740 mm x 200 mm x 150 mm
Endurance: 2+ hrs (per lithium ion battery)
Range: 160 km
Cruise Speed: 18 m/s
Bare Weight: 3.5 kg
Dry Weight: 4.4 kg
Lithium Ion Battery Weight: 1.2 kg (per battery)
MTOW: 10+ kg
Max Level Speed: 40 m/s or 140 km
Motor Type: Electric
Takeoff Requirements: 12 m (runway, unpaved road, catapult, grass)
Glide Ratio (L/D): 28:1 - 30:1
Center of Gravity: 85 mm - 95 mm from the root leading edge
Composition: Carbon fiber and fiberglass composite