Design
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Structure
Aerodynamics
Propulsion
The aircraft is powered by two SAFRAN Makila 1A engines of 1845 shp each. The propulsive system consists on two rotors of 2.6 meters of radius manufactured by MTV Propellers.
Due to safety measures, the aircraft has a transmission system in charge of the delivering of power to one engine to the two rotors in case of failure of one of the engines.
Finally, the propulsive system also formed by a hydraulic system in charge of the transition of the rotors from axial flight to forward flight.
An accurate aerodynamic design makes the Northbound's aircraft a competitive option of traveling and enjoying because the velocity is primated but a good relation between the efficiency is mantained also.
An 8 meters wing span configuration, high slerdernessed fuselage and T tail configuration provides 130 m/s velocity during the cruise flight achived only with 2.5 degrees of angle of attack. Designed with a 5m/s climbing velocity allows taking off in a safe and quick way.
Using a flaperon control surface along the wing and a rudder control surface in the vertical stabilizer the Northbound's aircraft is designed to perform all the maneuvers under stability and safe conditions in aerodynamics terms.
Northbound aircraft’s structure has been designed following the compromise between efficiency and economic viability. The aluminium made structure, in union with the efficient structure design, makes the airplane reliable in all flight conditions with a low weight.
The fuselage, has been designed following modern techniques. The semi-monocoque structure, composed by stringers and ribs, ensures the maximum resistance with the minimum weight.
The wing and the tail have been designed also with a semi-monocoque structure, using mainly aluminium 7075-T6. The result of this process is a structure with maximum displacements levels less than 10 mm, in order not to affect the aerodynamical efficiency.