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Dec 15, 2017, 08:17 AM
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Drone collision test


The CAAC (Chinese FAA) preformed a collision test with Phantom drones and a representative aircraft nose section. It says the outer windshield pane cracked as a result of the collision.

https://news.aviation-safety.net/201...aft-collision/
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Dec 17, 2017, 02:23 AM
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Atomic Skull's Avatar
Quote:
Originally Posted by ssobol
The CAAC (Chinese FAA) preformed a collision test with Phantom drones and a representative aircraft nose section. It says the outer windshield pane cracked as a result of the collision.

https://news.aviation-safety.net/201...aft-collision/
Overbuilt soviet aircraft so I'm not surprised. The Russians are like: "why build airplane with 1mm sheet metal when you can build with 2mm?"
Last edited by Atomic Skull; Dec 17, 2017 at 02:30 AM.
Dec 17, 2017, 11:21 AM
Registered User
Quote:
Originally Posted by Atomic Skull
Overbuilt soviet aircraft so I'm not surprised. The Russians are like: "why build airplane with 1mm sheet metal when you can build with 2mm?"
Test section is from a COMAC ARJ21-700. The test was to hit the windows, so it doesn't really matter how thick the metal is.

The windshields on the Comac planes are from the same manufacturer the makes the windshields for all Airbus aircraft, some Dassault bizjets, Rafale fighter, and Sukhoi Superjet.

P.S. Brits used to do the same thing as you say the Russians do. That's why they've pretty much stopped making airplanes. Yeah, their planes were built like tanks, but it cost them more to build them than they could sell them for. The British aircraft industry nowadays mostly builds parts for other aircraft manufacturers.
Dec 18, 2017, 12:08 PM
Plane Nuts
RobMason's Avatar
Windshields are designed to take hits from 20 lb geese, not surprising results.
Dec 18, 2017, 01:22 PM
Foam Wrecker
BillBlair's Avatar
Quote:
Originally Posted by RobMason
Windshields are designed to take hits from 20 lb geese, not surprising results.
Exactly, besides the insanely low odds of such an event involving a "drone" especially when compared to the on average 38 bird strikes reported to the FAA daily (and an unknown number not even noticed or just not reported), just over 2 daily reported as causing a "negative effect on flight", just under 2 causing damage requiring repairs.

BTW, just in case anyone still believes, as most do, that the 250g figure being copy-catted by nanny-state pols/regulators worldwide has anything whatsoever to do with a perceived hazard to manned aircraft, read the original FAA working group's report. That figure was derived using pull it out of your posterior WAG figures over the greatest population density in the US, Washington DC, to calculate the odds of a human death in the event of a "drone" falling from 500 feet and hitting someone directly on the head. Yes, really...

They didn't make any attempt whatsoever to estimate "drone" damage to aircraft because they said they didn't have enough data on that which brings up the question as why any regulation was needed at all for an apparent non-problem over the entire very long history of the RC hobby which hadn't managed to produce enough relevant collision data.

Also ignored in their failure to examine the issue was the existing, huge, detailed FAA database on wildlife strikes which, if used to estimate probabilities of "drone" collisions with manned aircraft would have shown, as was later done in at least two scholarly studies, that the issue was a statistical non-problem. If the ODDS of something occurring are extremely tiny, estimating without empirical evidence that a 2kg foamie or "drone" will not be as much of a threat as a common bird striking aircraft, a 10kg goose, isn't taking much of a risk and certainly doesn't justify a large program forcing every RC pilot flying anything larger than a toy 1mm over the grass in their own back yard to register with the federal government.

Collection of photos of radome damage from birdstrikes:

https://www.google.com/search?q=rado...iw=960&bih=479
Dec 18, 2017, 03:25 PM
Suspended Account
And yet, 40 years ago I buried a good friend and fraternity brother because of a bird strike.
Dec 20, 2017, 09:09 PM
Live Free and Fly
And yet, you proved his point. If you want to clear the skies of the real danger, eliminate bird strikes. Drones are statistically insignificant.


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