Turbo Prop Plane Takeoff

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Uploaded by on Aug 10, 2006

Takeoff from LAX in a turbro prop airplane. Due to the strobe effect, the prop looks to slow down after takeoff.

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Howto & Style

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Uploader Comments (dubhouse)

  • The reason why it seem that propellor is not moving is because the shutter speed is opening and closing at the same rpm of the blades rotating on the prop.

  • You are correct ceddie2000. The framerate of this digital camera is 30 frames / sec. The rpm of the propeller must be a perfect multiple of of 30 and thus we get the strobe affect making it appear that the propeller has stopped spinning.

  • yes. usual speed of takeoff

  • where is this at?

  • that's LAX (los angeles)

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All Comments (50)

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  • Horizon Airlines FTW!

  • i love planes i am a captain pilot on airblue my offical captain namses is captain faizan mahmood therefore i do why the prop has seemed to slow it i caused by the props spining but whn they takeoff they get the anno luminus effect tht is whyy

  • @ceddie2000 I have a different point of view. The closer we get to the speed of light, the slower objects seem to be moving. This is why it seems the propellers are moving slower then they actually are. Here is a different example, the standard living room fan..when it spins really fast, you can actually start making out individual blades. This has been proven with atomic clocks ..one clock in an airplane, the other on the ground. in the air, it seems you are moving slower, then on the ground

  • Q-400!! Very cool planes!

  • @dubhouse you will die next flight

  • I love how the whole plane starts to shake, and when you talk, it sounds like a robot in the air.

  • prop is spinning at 1020 rpm on takeoff ,.,, then slows to 900 after some altitude.. . FYI

  • No this is becouse the prop rotations match with camera frame rate :) if prop is rotating with 4000 rotations per minute this mean for one sec it will be about may be 20 ... so if camera is recording with 20 frames per secound and here is you no rotating propeller :D

  • If I'm not mistaken, this only happens when viewed on the recording, not in real life...something to do with the frame rate of the recording equipment.

  • I think it just looks like that because it matches the camera's shutter speed.

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