Aerodynamics Technology 1 Hour - Part 1 Issue: US18/1/2a-IQ-21a Copyright 24,. No part of this Publication may be adapted or reproduced in any material form, without the prior written permission of. Lesson Module: 71.18/3 Written by: LJ Technical Dept
Assignment 1 What is Aerodynamics? What are the four forces acting on an airplane in flight? 1) The upward force is... 2) The forward force is... 3) The backward force is... 4) The downward force is... Assignment 2 Looking at Wind Tunnels The flow of air through the wind tunnel is smooth. This type of airflow is called... airflow. The wind tunnel instrumentation measures: 1.... 2.... 3.... Assignment 3 Measuring Drag Fill in results from the drag meter calibration (Range 4). Mass Drag Meter 2 4 6 8 1 Table 3.1 SW1.1
Fill in the graph using your results from Table 3.1 (Range 4). (V) 1 9.5 9 8.5 8 7.5 7 6.5 6 5.5 5 4.5 4 3.5 3 2.5 2 1.5 1.5 RANGE 4 5 1 15 2 25 3 35 4 45 5 55 6 65 7 75 8 85 9 95 1 RANGE 3 2.5 5 7.5 1 12.5 15 17.5 2 22.5 25 27.5 3 32.5 35 37.5 4 42.5 45 47.5 5 RANGE 2 1.25 2.5 3.75 5 6.25 7.5 8.75 1 11.25 12.5 13.75 15 16.25 17.5 18.75 2 21.25 22.5 23.75 25 RANGE 2 RANGE 1.625 1.25 1.875 2.5 3.125 3.75 4.375 5 5.625 6.25 6.875 7.5 8.125 8.75 9.375 1 1.125 11.25 11.875 12.5 Graph 3.1 Complete the table to show how drag changes with facing area. Shape Width (in) Height (in) One block 3. 2. Two Blocks Facing Area (sq in) Drag Meter Drag Range Drag Table 3.2 A larger surface area causes... drag. (More/Less) SW1.2
Assignment 4 Testing Vehicle Designs Fill in the table to show drag resistance for the different automobile shapes. Car Drag Meter Drag Range Drag Station Wagon Compact Car Sports Car Table 4.1 The... vehicle shape has the lowest drag reading because.... Assignment 5 Car Building on Computer Fill in the results from the performance tests on the different automobile designs. Car Drag Coefficient Quarter Mile Top Speed (mph) Quarter Mile time lapsed (seconds) Gas Mileage (mpg) 1 2 Your Design Table 5.1 Drag coefficient tells us...... A high drag coefficient means...... A low drag coefficient means...... The lower the drag coefficient the... the speed and the... fuel economy (higher / lower). SW1.3
Aerodynamics Technology 1 Hour - Part 2 Issue: US18/1/2b-IQ-21B Copyright 25,. No part of this Publication may be adapted or reproduced in any material form, without the prior written permission of. Lesson Module: 71.18/3 Written by: LJ Technical Dept
Assignment 6 Introducing Lift and Aeronautics Complete the following sentence by filling in the missing words. When air travels faster, its pressure... Lift occurs when the air pressure below a wing is... than the air pressure above the wing. Assignment 7 Wings and The Angle of Attack Using a ruler, draw and label the chordline, the airflow direction and the angle of attack onto the diagram below. Diagram 7.1 Use the CAI to fill in the missing labels:... 2.... 3.... 4.... Diagram 7.2... 1. SW2.1
Assignment 8 Measuring Lift Force Fill in results from the lift meter calibration. (Range 4) Table 8.1 Mass 2 4 6 8 1 Lift Meter Fill in the table to show how lift changes with the angle of attack for a flat wing: Angle of Attack Table 8.2 1 2 3 4 5 6 7 Lift Meter Lift Range Lift Force Lift... (increases/decreases) with increased angle of attack. Stall occurs when... Fill in graph 8.1 using results from Table 8.1 (Range 4) SW2.2
(V) 1 9.5 9 8.5 8 7.5 7 6.5 6 5.5 5 4.5 4 3.5 3 2.5 2 1.5 1.5 5 1 15 2 25 3 35 4 45 5 55 6 65 7 75 8 85 9 95 1 RANGE 4 2.5 5 7.5 1 12.5 15 17.5 2 22.5 25 27.5 3 32.5 35 37.5 4 42.5 45 47.5 5 RANGE 3 1.25 2.5 3.75 5 6.25 7.5 8.75 1 11.25 12.5 13.75 15 16.25 17.5 18.75 2 21.25 22.5 23.75 25 RANGE 2 Assignment 9.625 1.25 1.875 2.5 3.125 3.75 4.375 5 5.625 6.25 6.875 7.5 8.125 8.75 9.375 1 1.125 11.25 11.875 12.5 Graph 8.1 RANGE 1 Comparing Different Types of Wing Fill in the table using the results from the cambered wing section: Angle of Attack Table 9.1 1 2 3 4 5 6 7 Lift Meter Lift Range Lift Force SW2.3
Fill in the table using the results from the symmetrical wing section: Angle of Attack Table 9.2 1 2 3 4 5 6 7 Lift Meter Lift Range Lift Force Fill in the graph using the results from table 8.2 (of Assignment 8) and tables 9.1 and 9.2. Plot three lines on the graph, one from each table. Label each line with the wing type used. LIFT FORCE 55 5 45 4 35 3 25 2 15 1 5 Graph 9.1 1 2 3 4 5 6 7 ANGLE OF ATTACK (degrees) SW2.4
Referring to graph 9.1, complete the following statements. At zero angle of attack the... wing generates the greater lift. Which wing has a stall condition with the lowest angle of attack?... wing. Assignment 1 Problem Solving: Designing a Glider Maneuvering an Airplane Note down the different components that are used to maneuver an airplane Purpose Device used Where found (wing/tail) Slow aircraft down...... Adjust the pitch of the airplane...... Make the airplane yaw...... Make the airplane roll...... At the airport Write down what the functions of the different areas of an airport are The Apron... The Taxiway... The Runway... The Hangers... The Gate... The Control Tower... Describe how you made the glider roll:... Describe what you saw when you raised the elevator flaps:... What happened when you tried to make the glider yaw? SW2.5
Appendix 1 Rectangles from Assignment 1 Fold Rectangle A Rectangle B CUT FOLD SW2.6
Appendix 2 Wind Vane for Assignment 2 GLUE Wind Vane SW2.7