Warm-Up – 1/25 – 10 minutes Utilizing your notes and past knowledge answer the following questions: Describe how lift occurs with an airfoil. Describe.

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Presentation transcript:

Warm-Up – 1/25 – 10 minutes Utilizing your notes and past knowledge answer the following questions: Describe how lift occurs with an airfoil. Describe how a vortex occurs Describe winglets and their purpose. What are Newton’s three laws of motion? Describe Mach.

Questions / Comments

Warm-Up – 1/25 – 10 minutes Utilizing your notes and past knowledge answer the following questions: Describe how lift occurs with an airfoil. Describe how a vortex occurs Describe winglets and their purpose. What are Newton’s three laws of motion? Describe Mach.

Who is Daniel Bernoulli? For Lift to occur - The pressure on top of the airfoil must be less than the pressure below. The airfoil has no choice but to move upward.

Warm-Up – 1/25 – 10 minutes Utilizing your notes and past knowledge answer the following questions: Describe who lift occurs with an airfoil. Describe how a vortex occurs Describe winglets and their purpose. What are Newton’s three laws of motion? Describe Mach.

A Third Dimension The high-pressure area on the bottom of an airfoil pushes around the tip to the low-pressure area on the top. This action creates a rotating flow called a tip vortex

Warm-Up – 1/25 – 10 minutes Utilizing your notes and past knowledge answer the following questions: Describe who lift occurs with an airfoil. Describe how a vortex occurs Describe winglets and their purpose. What are Newton’s three laws of motion? Describe Mach.

A Third Dimension Winglets can be added to the tip of an airfoil to reduce this flow. The winglets act as a dam preventing the vortex from forming. Winglets can be on the top or bottom of the airfoil.

Warm-Up – 1/25 – 10 minutes Utilizing your notes and past knowledge answer the following questions: Describe who lift occurs with an airfoil. Describe how a vortex occurs Describe winglets and their purpose. What are Newton’s three laws of motion? Describe Mach.

Newton’s Laws of Motion Newton's three laws of motion are: Inertia - A body at rest will remain at rest. and a body in motion will remain in motion at the same speed and direction until affected by some external force. Nothing starts or stops without an outside force to bring about or prevent motion. Hence, the force with which a body offers resistance to change is called the force of inertia.

Newton’s Laws of Motion Newton's three laws of motion are: Acceleration - The force required to produce a change in motion of a body is directly proportional to its mass and the rate of change in its velocity. Acceleration refers either to an increase or a decrease in velocity, although Deceleration is commonly used to indicate a decrease.

Newton’s Laws of Motion Newton's three laws of motion are: Action / Reaction - For every action there is an equal and opposite reaction. If an interaction occurs between two bodies, equal forces in opposite directions will be imparted to each body.

Warm-Up – 1/25 – 10 minutes Utilizing your notes and past knowledge answer the following questions: Describe who lift occurs with an airfoil. Describe how a vortex occurs Describe winglets and their purpose. What are Newton’s three laws of motion? Describe Mach.

The Speed of Sound in Air Austrian physicist Ernst Mach determined the mathematical value for the speed of sound Speed of sound varies with altitude because temperature decreases with an increase in height Chuck Yeager in the X-1 broke the speed of sound Oct 14, 1947

Questions / Comments

THIS DAY IN AVIATION January 25 1921 — Committee on Law of Aviation of the American Bar Association files an initial report on the necessity of aerial legislation.

THIS DAY IN AVIATION January 25 1983 — The Swedish-US SAAB-Fairchild 340 transport, the first aircraft built by collaboration, makes its first flight.

THIS DAY IN AVIATION January 25 1990 — The Lockheed SR-71A “Blackbirds” are retired from SAC service.

Questions / Comments

January 2018 HOLIDAY 7 8 Welcome to Aviation Ground School 9 Chapter 1 Sunday Monday Tuesday Wednesday Thursday Friday Saturday 7 8 Welcome to Aviation Ground School 9 Chapter 1 Intro to Flying 10 11 12 Quiz 13   14 15 HOLIDAY 16 Chapter 2 Aircraft Structure 17 18 19 20 21 22 Chapter 3 Principles of Flight 23 24 25 26 Flight Line Friday 27 28 29 Chapter 4 Aerodynamics of Flight 30 31 1 QUIZ 2 3

1st Quarter Requirements (9 weeks of Class Meetings – Mar 16) All students will complete the following: Take notes - All in class quizzes and tests Complete Flight Sim. Tutorials (1 – 5 x 3 + 1) Aircraft Fam. and Student Pilot Syllabus Lessons 1 – 7 (Straight & Level Flight through First Solo) Must pass written with 80% Successfully complete 3 times on small sim Successfully complete 1 time on Main sim Complete ERAU Aviation 101 6 quizzes and 2 tests Student will receive zero points for all incomplete work – NO make-up / extra credit

Questions / Comments

Chapter 3 – Principles of Flight - Review FAA – Pilot’s Handbook of Aeronautical Knowledge

Chapter 3 – Principles of Flight - TEST FAA – Pilot’s Handbook of Aeronautical Knowledge