American Helicopter Society AHS International Helicopters vs Airplanes

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American Helicopter Society (AHS) International.

American Helicopter Society (AHS) International.

Helicopters vs. Airplanes What only helicopters can do vs. Only helicopters can hover and

Helicopters vs. Airplanes What only helicopters can do vs. Only helicopters can hover and move backwards! AHS INTERNATIONAL

Acceleration position current location AHS INTERNATIONAL velocity change in position acceleration change in velocity

Acceleration position current location AHS INTERNATIONAL velocity change in position acceleration change in velocity

Force has strength and direction. Isaac Newton’s 2 nd Law: Force = mass ×

Force has strength and direction. Isaac Newton’s 2 nd Law: Force = mass × acceleration Newton’s 3 rd Law: Every action has an equal and opposite reaction AHS INTERNATIONAL

Forces of Flight

Forces of Flight

Acceleration due to Gravity ? ? Where is Taylor going to fall down faster?

Acceleration due to Gravity ? ? Where is Taylor going to fall down faster? On EARTH! The fall is about 6 times faster on Earth than on the Moon!

Suggested slide: Prof. Celi demoed this at a recent AHS STEM outreach with good

Suggested slide: Prof. Celi demoed this at a recent AHS STEM outreach with good responses from students

How Lift is Created

How Lift is Created

Forces of Flight

Forces of Flight

Standard Helicopter Flight Controls Tilts helicopter forward, backwards and side to side Controls direction

Standard Helicopter Flight Controls Tilts helicopter forward, backwards and side to side Controls direction Makes helicopter go up Involves both hands and both feet! AHS INTERNATIONAL

Paper Helicopter Construction Fold along dotted lines Step 1 Step 2 Step 3 Paper

Paper Helicopter Construction Fold along dotted lines Step 1 Step 2 Step 3 Paper Helicopter Template AHS INTERNATIONAL

Paper Helicopter Demo Flight Launch paper helicopter and observe during “flight” AHS INTERNATIONAL

Paper Helicopter Demo Flight Launch paper helicopter and observe during “flight” AHS INTERNATIONAL

Helicopter Missions • Search and Rescue • Training • Military • Executive Transport AHS

Helicopter Missions • Search and Rescue • Training • Military • Executive Transport AHS INTERNATIONAL

Helicopter Missions • Construction • Medical evacuation • Firefighting • And lots more! AHS

Helicopter Missions • Construction • Medical evacuation • Firefighting • And lots more! AHS INTERNATIONAL

Unique VTOL Aircrafts

Unique VTOL Aircrafts

First supersonic STOVL stealth aircraft F-35 B Lightning II AHS INTERNATIONAL

First supersonic STOVL stealth aircraft F-35 B Lightning II AHS INTERNATIONAL

Why are helicopters unique?

Why are helicopters unique?

Important Information • Airfoil: The distinct shape of the wing of an airplane or

Important Information • Airfoil: The distinct shape of the wing of an airplane or the rotor blades of a helicopter • Angle of Attack: The angle of the airfoil, using the body of the aircraft as a reference point. • Pressure: The force exerted on an object • Velocity: The speed at which and object is travel at • Gravity on Earth: 9. 807 m/s² • Gravity on the Moon: 1. 622 m/s² AHS INTERNATIONAL

Evolution of the Rotary Wing • • 1923 Ciervas Autogiro 1931 Pitcairn Autogiro 1943

Evolution of the Rotary Wing • • 1923 Ciervas Autogiro 1931 Pitcairn Autogiro 1943 Sikorsky R-4 1952 Piasecki CH-21 B 19 AHS INTERNATIONAL

ROTORCRAFT: PRESENT & FUTURE AHS INTERNATIONAL

ROTORCRAFT: PRESENT & FUTURE AHS INTERNATIONAL

Main Parts of the Helicopter AHS INTERNATIONAL

Main Parts of the Helicopter AHS INTERNATIONAL

“Making Better Helicopters” Susan Gorton, NASA Langley Lead AHS INTERNATIONAL

“Making Better Helicopters” Susan Gorton, NASA Langley Lead AHS INTERNATIONAL

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