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Task 3 Collaborative Inquiry: Model Aircraft (Foam Glider) - Coggle Diagram
Task 3 Collaborative Inquiry: Model Aircraft (Foam Glider)
Design
Conventional foam glider
Typical glider design with stub-end fuselage
Flat wings with small upward curve at the end
CHANGE: We will be replacing parts of the wing to make it longer and thus, increase the surface area in order to incrementaly increase the product of lift.
Distance travelled by Glider
Materials with good stability and rigidity (cannot be flimsy such as plastic) that provide optimum aerodynamic design for lift/drag ratio
Greater Surface Area = Greater Lift = Greater Flight time
Therefore AoA is applied to entire wing in ratio to the aircraft fuselage and kept well below stalling angle
Lift and Surface Area in regards to a glider. are directly proportional
Trials
Increased Wing Surface Area: Trialed 5 Times
Default Plane: Trialed 5 times
Trial 3: 45 Degree Upward AoA
Each trial will consist of changing the wing's surface area
Design and Prototyping
The wing is a double-fixed and so it can be pulled out from the whole fuselage
Whether or not, we will fill the gap is debatable. We may take foam from similar material or buy another one for it specifically or may fill it with some other similarly weighted substance
The wing will be cut in half and glued on at a carefully measured angle in the s
We will be using a workshop (provided by Elliot) and use tools such as Stanley Knives and Hot Glue to modify our aircraft. These can be considered in the risk assessment.
Aerodynamic Principles
Bernoulli's Theorem of inverse pressure and velocity
Newton's Third Law: Relative airflow pushed down by aerofoil = more lift
Greater lift = slower descent = increased flight time
Balance between AoA and Drag
In lift formula, Surface Area is directly proportional so when SA increases, so does Lift
Lift Vector is split into two parts; force that allows for lift due to air resistance provided by the wing's surface area. The other is a minor vector that adds to the weight loading of the aircraft and therefore initiates more drag due to weight, however, in a glider, weight loading is of little concern as it utilises no fuel and is released from a vantage point of gravitational potential energy.