Introductio ton AeroSpace 03c - Boeing 737 Max (Continued)

OPENING QUESTION: Why does an airplaine stall?

 

LEARNING GOAL FOR TODAY: I will how an airplane can 'stall' during today's class.

WORDS O' THE DAY:

  • Force: ("A push or a pull")
  • Thurst ("forward pushing force")
  • Air Friction ("resists forward motion")
  • Lift ("Lower pressure, upward pull")
  • Weight ("downward pull")
  • Stall ("Stops Moving Upward")
  • Rudder ("tail")
  • Elevator ("Controls Up/Down")

WORK O' THE DAY:

Let's have some fun and imagine we're flying a small plane (A Cessna!).

In VERY basic terms, pushing down on the right pedal moves the plane to the right, ditto with the left pedal.

Pulling the steering wheel towards ourselves moves the plane upwards, pushing down on the steering wheel moves the plane down...

Let's try it (and discuss how it works too)

We spoke about emergency windmill generators yesterday.....

Modern airlines are HUGELY dependant on electricity. Boeing quit using actual cables and most (?) hydraulic systems with the 777 in a process known as 'fly-by-wire'.

From the very first days of flight, when a pilot needed to change the direction of the plane (up and down, back and forth), controls in the cockpit (such as pedals on the floor) were pushed or pulled, which pulled on cabels which pulled on the elevator (up and down) and the rudder (back and forth) back by the tail of the plane.

Fly-by-wire aircraft such as the 777 and the 787 use those same control mechanisms (such as pedals) but when the pilot moves those controls they send electrical signals down wires which move the rudder (tail) or the flaps (wings).

Apparently Airbus (the other maker of planes in the world) still uses a combination of wires AND cables.

In either case, a loss of electrical equipment on any modern day plane can be catostrophic-- why?

Here's an example of the backup system (Called a RAT) and here's an example of a RAT being tested on a 777

In otherwards, when the captain presses pedals on the floor to stear the plane, i

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Oh and our colleague Cameron sends THIS link about a revolutionary lithium ion battery (that HOPEFULLY) won't catch fire quite so easy

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Let's take a quick change in direction and write some flash cards for our words' o the day (I'm thinking vocab test on Tuesday!)

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Now... back to our 737 project.

Please send someone over to cut off *about* 3 feet of butcher paper and grab some color pencils too!

Use the meter stick to divide the paper into 8 cells (like in a comic)

Work with your group to create a comic-type rendering of the 737 Max incident we've been discusssing.

Each cell should show the plane in different angles (level, moving up, moving down etc..)

Each cell should also include a brief description of the issues occurring on the plane at that time (it may be helpful to brainstorm 8 stages BEFORE you start)

Here's the reading from yesterday that might help