When angles mean the difference between life and death…

Want to show the kids how important angles are? They can be the difference between life and death…

The specially chosen angles of the surfaces on the F117 “Nighthawk” jet fighter/bomber make it invisible to radar. It can fly into enemy territory completely undetected by radar all due to it’s angular shape.

Picture from http://en.wikipedia.org/wiki/File:F-117_Nighthawk_Front.jpg

F117
Image by Chris M0EEG via Flickr
A detail of an F-117 Nighthawk Stealth Fighter...
Image via Wikipedia
Why not print some pictures of the F117 Nighthawk and get the pupils to measure the angles formed by the different surfaces of the aircraft? A great engaging context for a lesson on estimating and/or measuring angles.
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2 thoughts on “When angles mean the difference between life and death…

  1. Unfortunately it is very difficult to measure the angles of a 3-dimensional object from a 2-dimensional picture. The perspective view changes the angles.

    • Hi Dave. Totally agree with you. I was thinking of this as more an engaging idea rather than one that leads directly to them measuring the real life angles. Your point would certainly be a good question to raise with them: “would the angles you have measured in the picture be the angles on the plane in the real world?…”

      Thanks

      Will

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