Flight demonstration wind tunnel experimental device
This is a device specially designed to conduct extensive experiments on the takeoff, flight, and landing of aircraft. The aircraft model in the suction-type open wind tunnel consists of two propellers, a main wing with a chord length of 152mm (NACA2412), and a fully movable tail with a chord length of 76mm. Air flowing in from the bell mouth is discharged from the device through a rectifying honeycomb, the experimental area equipped with the aircraft, a diffusion body, an axial fan, and a silencer duct. The control wheel located at the front of the experimental area manipulates the tail angle of the aircraft model, while the lever resembling the engine throttle on the right side controls the wind speed within the wind tunnel.
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basic information
AF41V Specifications Dimensions: L2130 x D870 x H1645 mm Weight: 262 kg Experimental Area: D225 x H450 mm Wind Tunnel Fan: Axial Flow Type Maximum Flow Velocity: Approximately 21 m/s (41 knots) Airflow Control: Three-phase inverter control via throttle Aircraft Model: Fixed main wing, movable horizontal tail, two-blade propeller Model Airfoil: NACA2412 Model Length: 440 mm Model Span: 220 mm Main Wing Chord Length: 152 mm Tail Wing Chord Length: 76 mm Wing Area: 0.33 m² Dimension between Wing Chord Points: 228 mm (from 1/4 main wing to 1/4 tail wing) Effective Weight of the Body: 5 Newtons Moment of Inertia: 0.03 kgm² (1/4 wing chord point, aerodynamic center) Power Supply: Single-phase AC 200V, 3 kW, 50/60 Hz Required Installation Area: 3m x 2m (3m space required in front and behind the wind tunnel) Noise Level: 84 dB Accessories: Software (VDAS-Onboard) PC Environment (sold separately): Windows 8, 10
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Applications/Examples of results
Main experimental content We will measure the relationship between lift and angle of attack while changing the tail angle, observing the changes in attitude (angle of attack) and lift. We will conduct stall experiments on the aircraft, gradually increasing the attitude to observe the flow separation around the wings. We will determine the neutral point of the aircraft while varying the tail angle, speed, and aerodynamic center. We will demonstrate the short-period longitudinal oscillation of the aircraft.
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Megakemu designs, manufactures, and imports various experimental and practical equipment for universities, junior colleges, technical colleges, high schools, and vocational schools across the country. While the world has made advancements in various fields, it seems that our Earth's environment is being disrupted by ourselves and is approaching its limits. The world is seeking new Japanese technologies that coexist with the Earth's environment.
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