Friday, September 16, 2011

How high is the plane?

A plane is coming down for a landing. The angle from the horizontal is 25degrees. The plane is 367m from its landing point along the ground. How high is the plane?|||Isn't that just very simple trigonometry ,





which has absolutely nothing to do with the speed of the aircraft





from memory isn't it something like adjacent x tan 脴 = opposite ,





so because the adjacent is 367m ALONG THE GROUND





it becomes 367m x tan 25掳 = height





you can do a bit of the work - go and look up tan 25掳





*|||How fast is it going??? You are lacking quite possibly one of the most important parts of this equation!!!|||do your own homework.|||367 miles slant range to the landing point or 367 miles geographically. Huge difference. But what's the point of all this? Check your altimeter. If that's broke, ask the countroller what he's reading from the mode C of your transponder. Jeez. Flying needn't be difficult.

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