TAREQ ALSAADI GOBLIN KRAKEN 3D RC HELICOPTER SWISS HELI CHALLENGE 2019

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TAREQ ALSAADI GOBLIN KRAKEN 3D RC HELICOPTER SWISS HELI CHALLENGE 2019

Swiss Heli challenge 2019 Airport Dübendorf Switzerland biggest Outdoor RC Helicopter Event. Tareq Alsaadi from Dubai World Champion in 3D Helicopter flying. @the Swiss Heli Challenge 2019 with a Goblin Kraken 3D RC model Helicopter, enjoy R/C helicopter Sphynx 3D The helicopter is mounted in the centre of a square-shaped courtyard as shown in Figure 11. The platform simulating a complete ground is at 1.2 m above the building floor. The walls have a parallelepiped form; they are in wood and screwed on the floor. The interior side of the walls are painted in black for the visualisations. The wall is 0.36 m high with a thickness equal to 0.30 m.The paper describes the objectives and the structure of the GARTEUR Action Group HC/AG-22 project which deals with the basic research about the forces acting on obstacles when immersed in rotor wakes. The motivation started from the observation that there was a lack of experimental databases including the evaluation of the forces on obstacles in ro...f

igure 8: CIRA experimental lay-out - HIGE

The tests is being conducted in free air inside the CIRA

laboratory of Testing Engineering and Methodology. The

experimental campaign will make use of the R/C helicopter

model Blade 450 3D RTF, equipped with a four-bladed

rotor, with rectangular blades and NACA 0013 airfoil,

having diameter D = 0,72m and rotor speed Ω = 2400 RPM,

Figure 9. The forces and moments will be measured by

using the six-component balance ATI Mini40 IP65. A sling

load of cylindrical shape and fineness ratio 2, having length

equal to 20% of the rotor diameter, is being manufactured

at CIRA via Additive Manufacturing technique. The cylinder

is equipped with some pressure ports for the

characterization of the pressure distributions

ONERA developed a scaled rotor bench with the objective

to investigate the interactional effects between the rotor

wake and its close environment, which can be infinite or

finite ground effect, or obstacles of any kind.

The activity is nearly completed and a number of related

publications has been already produced and reported in the

references

[25.],[26.]

.

4.2.1 Test rig and obstacle model

The test rig is originally based on the commercial R/C

helicopter model Sphynx 3D including a rotor head with

global and cyclic control in pitch. The helicopter was

strongly customised: the tail rotor and the cyclic pitch were

removed; a six components balance, an external energy

supply, etc. were introduced. The rotor has two rectangular

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