AIRCRAFTS

The Beoavia team is currently working on the realization of three projects. Taking part in these projects allows for the development of practical knowledge attained at the faculty, ranging in fields, from the design and construction of an aircraft, aerodynamics, flight mechanics, structural analysis and electrical engineering. After analyzing the purpose of the aircraft, its characteristics and determining its maneuverability, the team starts to develop a conceptual design. In the preliminary phase, optimization of design is achieved through various analysis’, simulations and calculations, both structural and aerodynamic. The project then enters the final stage where the main tests take place and the main project is prepared leading to the construction of the aircraft.

RAVEN TL18

Test aircraft
Technical Caracteristics:

  • Lenght: 1.36 m
  • Height: 0.5 m
  • Wing span: 2 m
  • Wing area: 0.40 m2

  • Drive: AXi Gold 2826/10 V2
  • Power: 500 W
  • Propeller: 11 inch
  • Battery capacity: 2500 mAh

  • Cruise speed: 16 m/s
  • Empty mass: 2 kg
  • Payload mass: 8 kg
  • Total mass: 10 kg

Turntable

RAVEN TL 18 represents the first project for our team. In the name, the TL stands for Test Letelica which means Test Aircraft in Serbian and the idea is that a small aircraft of small dimensions is to be made which will be used as a platform to test our team’s theoretical knowledge gained so far through their education. The aircraft will be made of extremely lightweight materials and its task is to carry a load, three times its own mass. This serves as a test in order to prepare our team for the Air Cargo Challenge in Germany next August, where the team would present a larger, more complex model of this aircraft.

The Raven TL 18 is an aircraft of relatively small dimensions but is made of unconventional (composite) materials whose processing technology requires specific methods and skills. Also, this aircraft will go through various tests where the results would be applied to the development of the aircraft that is to compete next year. One of these tests is the test in the aero tunnel at the Institute of Aeromechanics at the Faculty of Mechanical Engineering, University of Belgrade where air would artificially circulate, and airspeeds close to those that our aircraft would be exposed to in real time are achieved and with the help of various sensors, we would be able to measure deviations from our theoretical calculations. The Raven TL 18 would also have test flights in order for us to see it behavior in the air.


RAVEN TL18 PROGRESS

End of manufacturing: February 2019.


RAVEN 19

Competition aircraft
Technical Caracteristics:

  • Lenght: 1.5 m
  • Wing Span: 3.4 m
  • Drive: AXi Gold 2826/10 V2
  • Propeller: 11 inch
  • Cruise speed: 16 m/s
  • Total mass: 14 kg

RAVEN 19 predstavlja drugu letelicu u okviru projekta „RAVEN“. Ona ujedno predstavlja naš tim na međunarodnom studenstkom tehničkom takmičenju „Air Cargo Challenge“ koje se održava u Avgustu ove godine u Štutgartu. Za razliku od njenog prethodnika, letelice „RAVEN TL18“, ova letelica će biti nešto većih dimenzija. Sa razmahom krila od 3 metra i dužinom od 1.5 metara, ova letelica bi trebalo da se upakuje u kutiju dimenzija 750 x 400 x 250 milimetara, te predstavlja veliki izazov za projektovanje i proizvodnju zbog prevelikog broja spojeva. „RAVEN 19“ će takođe biti sačinjen od kompozitnih materijala, odnosno karbonskih vlakana u kombinaciji sa penastom ispunom kako bi letelica dobila na čvrstoći.

The aircraft has high, constant chord, tapered outer wings with winglets on both ends. Landing gear configuration is typed tricycle with one wheel on each strut. For the motor, we use AXI Gold 2826/10 V2 brushless motor which can produce 500W of power. The propeller is made out of composites and has two blades. Cargo bay is located on the fuselage and it will have the ability to move along the fuselage so that we could change our center of gravity at any time. As for the tail configuration, RAVEN 19 will have the conventional tail with the horizontal stabilizer being fully movable.


RAVEN 19 PROGRESS

End of manufacturing: June 2019.


AURORA

Rocket
Technical Caracteristics:

  • Height: 1.5 m
  • Wing Span: 2.25 m
  • Takeoff mass: 5 kg
  • Flown mass: 3.5 kg
  • Cruise speed: 7 m/s

AURORA consists of a rocket body and wings that will allow for a large takeoff using minimal propulsion power as per the technical requirements of the competition. The assignment of the dynamic part of the competition would be for the rocket to launch vertically and convert into horizontal powerless flight (becoming a glider) with an automatic regulation system in place for the whole process. The rocket will carry a liquid load in its body where the sloshing effect needs to be minimized using a technical solution and providing safe flight.


AURORA PROGRESS

End of design part: March 2019.


Team BEOAVIA , University of Belgrade

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