1. Principles of Flight
5-9 DEC 2016

2. Do Now 7 DEC 16 Take out notebook Pick up blank worksheet
Pick up blank paper - fold a new cylindrical airfoil

3. Mini-Lesson 1: Four Forces of Flight (HTA)

4. Mini-Lesson 1: Four Forces of Flight (HTA) Vocabulary
Force – a push or pull on an object
Lift – the upward force created by a difference in air pressure
Thrust – The forward force created by a propeller, a jet, or other kinetic action
Drag – the resistance (pull) caused by the shape of the object moving through air
Weight – the pull of gravity on the mass of the object towards the center of the earth

5. Flight Test 1.0 Cylindrical airfoil (CAF)
On your blue engineering worksheet, describe the where (or how) the Four Forces of Flight apply:
Where does the thrust come from?
How is lift generated?
How do drag & gravity apply?
Choose ONE force - What can you do to affect (change) how it applies (influences) the CAF flight. Discuss with your group
Flight Test 1.0

6. Clean-up All models and flight test materials put away
Floor and desktops free of debris
Chairs pushed-in

7. Principles of Flight
5-9 DEC 2016

8. Do Now 8 DEC 16 Take out notebook Open to Flight Test 1.0 (FT 1.0)
Take out current cylindrical airfoil (CAF)
Pick up piece of scrap paper for demonstration

9. Mini-Lesson 2: Generating Lift – Bernoulli Principle
As the speed of a fluid (like air) goes up, it’s pressure goes down.
The pressure in a fast moving stream of fluid (like air) is less than the pressure in a slower stream.
THEREFORE, if air moves FASTER over one side of a wing (airfoil) and SLOWER over the other side, the pressure of the air on the slower side will LIFT the wing.
This is what your CAF is doing: It’s shape increases the velocity of the air passing through it.
Q: Why does it glide on a level path?

10. Flight Test 1.1 Cylindrical airfoil (CAF) From yesterday:
Describe the where (or how) the Four Forces of Flight apply
Choose ONE force, consider how it applies to the CAF flight
Discuss with your group - record results
TODAY:
Check your work – Have you DRAFTED first five sections?
What are your Criteria for Success? Choose ONE measurable way to document improved flight performance.
Flight Test 1.1
Day Two

11. Clean-up All models and flight test materials put away
Floor and desktops free of debris
Chairs pushed-in