When designing the Fuselage we took into account the electronics weight and dimensions to have the electronic components sit inside the fuselage perfectly to balance out the center of gravity on the drone itself, alongside the electronic component we also took into account the wing dimension and weight that will be applied from the wing on the fuselage, we were able to design the fuselage to also be as aerodynamic as possible with the data we have collected on the from simulations. The fuselage is made out of Depron foam with a layer of balsa wood to reinforce.
Dimensions (mm) : 465 x 172 x 130
The wing tube allows for the individual wing pieces to connect to each other easily, the material that we would use for the wing tube rod is carbon fiber. The wing tube would go through the entirety of the wing to reinforce the wing for no movement between the separate pieces of the wing and to ensure rigidity as a whole.
Dimensions (mm): 1828.8 length, 12.319 (outer diameter), 9.525 (inner diameter).
The airfoil we selected was the NACA 4412 airfoil, which has a maximum thickness of 12% at 30% of the chord and max camber of 4% at 40% of the chord. This airfoil overall has great performance with high lift to drag ratio of 76.6 at an Re of 200,000 and 101.1 at Re = 500,000 both at an angle of attach of 5.5 degrees. In order to increase our lift as much as possible, we needed a high aspect ratio. In order to get a high aspect ratio of 12, we selected a wing span of 2m and a chord length of 170mm. The wing is made out of XPS foam and was cut using a hot wire.
Dimensions (mm): Length = 2000mm , Chord = 170mm , Thickness = 20.4mm
The wing rod mount is used to hold the rear wing tail through the rear wing connection to the main wing through the use of 2 carbon fiber tubes.
Dimensions (mm): 140 x 40 x 26
The rear tail connection is used to connect the horizontal stabilizer to the tail tube and vertical stabilizers together, which connects to the main wing through the carbon fiber rods. We wanted to simplify the design for easier connection and building of the drone for easy repair/replacement of the components in case of malfunction or damage on the rear wing stabilizer and the horizontal stabilizer. The material is ABS plastic, which was used to 3D print this component.
Dimensions (mm): 100 x 50 x 40
The vertical stabilizer design is a full-swept fin. The purpose of the vertical stabilizer is so the aircraft is stable and straight through the air. The top of the leading edge has a 20 mm fillet and a 10 mm fillet at the top of the trailing edge. We selected this design by analyzing several iterations signed by using 2D CFD Simulation in Ansys Fluent. Our goal was to minimize the drag coefficient to increase efficiency as our goal is to design a long range aircraft. The drag coefficient of this design is 0.0975.
Dimensions (mm): 70 x 6 x 80
The horizontal stabilizer is used to connect to the tail connections in the easiest and most convenient way possible to allow for easy replacement if needed. Also, this stabilizer produces some lift to help raise the back of the aircraft. The material used is Depron EPO foam.
Dimensions (mm): 355 x 100 x 6
With the tail tube this allows for connection to the main wing from the vertical stabilizer with a material of carbon fiber since carbon fiber is lightweight, strong, and durable to hold both ends of the drone together with no issues.
Dimensions (mm): 304.8 length, 18.67 (outer diameter), 15.875 (inner diameter)
AR8360T DSMX 8-Channel AS3X & SAFE Telemetry Receiver
Telemetry Capable Receiver with 3-Axis Gyroscope and Beginner Pilot Flight Protection Envelope
6S Li-Po Flight Battery
2, 7000 mAh 22.2V in Parallel to provide approximately 18 minutes of flight time
Avian 5055-650 KV Outrunner Brushless Motor
900 Watt Max and 5.1 kg of Thrust at 13,000 RPM
AGF 13 Gram Digital Metal Geared Servos
Max Torque of 3.8kg-cm and Metal Gears for Increased Reliability
The servos allow controlled deflection of the control surfaces (elevator, rudders, ailerons, and flaps) in order to control the aircraft during flight. The ailerons are on the outer trailing edge of the wings which control the roll of the aircraft. The flaps are used to shorten takeoff and landing distances and are placed at the inner trailing edges of the wing. The elevator is placed at the trailing edge of the horizontal stabilizers and controls the pitch of the aircraft. The rudders are located at the trailing edge of the vertical stabilizers and control the yaw of the aicraft which helps with coordinated turns and crosswind landings.