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03 October 2024

Plane malfunction illusion: Rolling shutter effect

Chris wanted to take a photo while on an airplane flight. The aircraft was a Bombardier Q400. Chris didn't have a camera with him, only his Apple iPhone 3GS. The scanning order of his iPhone sensor combined with the light refracted from the airplane window caused a distinctive "detaching blades" phenomenon in the photo. Rotating the camera warps the blades in different directions.

Edit: Unfortunately for me, Chris is no longer sharing his photos online, but I have found others. Keep reading!

Bombardier Q400 digression


drawing of a Q400 airplane with unhappy passengers
Q400 passenger airplane by The Cranky Flier on Flickr

There have been some serious safety concerns with the Bombardier Dash Q400 Turboprop. Persistent problems with faulty landing gear received plenty of media coverage. Also, landing gear failure is highly noticeable to passengers! Some of the worry is depicted by The Cranky Flyer in the little drawing.

Although there have been no passenger injuries, thanks to pilot skill, multiple instances of left or right wheels failing to extend fully (or at all!) upon landing have occurred in Canada, the United States, and France. Those are the markets for Bombardier's small-to-medium sized commercial and business aircraft.

Engine stalls in very cold weather, due to ice, is another issue with the Q400. Both the U.S. Federal Aviation Administration (FAA) and Canadian air safety regulators launched formal inquiries.

Despite the appearance of Jason's photo below, there have never been any problems with Q400 propellers blades detaching and falling off while in flight!

Blades
Blades by Jason Mullins on Flickr