Little Dipper Posted October 16, 2018 Report Posted October 16, 2018 https://www.cnn.com/videos/world/2018/10/16/drone-airplane-crash-test-llr-orig.cnn The video of a drone strike on a M20 wing is scary interesting. I wonder what would happen if it hit the leading edge where the gas tank is located? I also wonder if tks would have helped lessen the damage. Norm
N201MKTurbo Posted October 16, 2018 Report Posted October 16, 2018 I want to see the drone cannon they used to launch that thing. In reality it shouldn’t be any worse then hitting a bird of the same mass. I wonder if it had a fully charged battery? I would have expected to see some chemical reaction from a smashed battery.
jaylw314 Posted October 16, 2018 Report Posted October 16, 2018 There's already been 2 threads on this...
RobertGary1 Posted October 16, 2018 Report Posted October 16, 2018 Is this going to be a weekly post? -Robert
Piloto Posted October 16, 2018 Report Posted October 16, 2018 The impact location shown on the video would impair the aileron control rod. If the impact is deep enough electrical wires in the wing could shorten and spark a fuel tank fire. Drones are smaller than planes thus harder to see them. On the other hand drones fly at lower speeds so any encounter with them would be in front. Try to fly high to avoid them. José 1
jaylw314 Posted October 16, 2018 Report Posted October 16, 2018 35 minutes ago, Piloto said: The impact location shown on the video would impair the aileron control rod. If the impact is deep enough electrical wires in the wing could shorten and spark a fuel tank fire. Drones are smaller than planes thus harder to see them. On the other hand drones fly at lower speeds so any encounter with them would be in front. Try to fly high to avoid them. José https://en.wikipedia.org/wiki/General_Atomics_MQ-9_Reaper Cruise speed about 170 knots and wingspan 69 feet. Running into one would definitely be a bad day. Some of us could get hit from behind by one of these suckers, too. Just sayin' 1
0TreeLemur Posted October 16, 2018 Report Posted October 16, 2018 4 hours ago, N201MKTurbo said: I want to see the drone cannon they used to launch that thing. In reality it shouldn’t be any worse then hitting a bird of the same mass. I wonder if it had a fully charged battery? I would have expected to see some chemical reaction from a smashed battery. According to the article here drone impacts can do considerably more damage than birds of the same mass. Birds go splat and disintegrate more than drones. Think about those dense little electric motors. The bird damages the leading edge, but not the main spar. The drone damages the main spar.
N201MKTurbo Posted October 16, 2018 Report Posted October 16, 2018 28 minutes ago, Fred_2O said: According to the article here drone impacts can do considerably more damage than birds of the same mass. Birds go splat and disintegrate more than drones. Think about those dense little electric motors. The bird damages the leading edge, but not the main spar. The drone damages the main spar. I stand corrected. Here is a better link to the report: http://www.assureuas.org/projects/deliverables/sUASAirborneCollisionReport.php
Mooney in Oz Posted October 18, 2018 Report Posted October 18, 2018 On 10/17/2018 at 8:36 AM, Piloto said: Try to fly high to avoid them. José You would think so Jose, however one of our company aircraft passed one at FL140.
Yetti Posted October 18, 2018 Report Posted October 18, 2018 In the things to worry about catagory Drone strike vs. Turkey vulture strike vs. losing an engine on takeoff vs. stall spin in landing phase and go
flyboy0681 Posted October 18, 2018 Report Posted October 18, 2018 Drones are already a miracle of micro circuitry, how about a requirement to have them pick up the signal from a transponder or ADS-B and back off when it senses it's too close? This solution won't speak for the millions already in circulation however. 1
Piloto Posted October 18, 2018 Report Posted October 18, 2018 (edited) DRONES BEWARE PILOTO IS COMING AFTER YOU. Image result for Airplane P-47 Machine Guns.url Image result for Airplane P-47 Machine Guns.url Image result for Airplane P-47 Machine Guns.url Edited October 18, 2018 by Piloto
INA201 Posted October 18, 2018 Report Posted October 18, 2018 Interesting they used a Mooney wing. I guess it’s one of the only small aircraft that can reasonably reach 238 mph. What would it do at say 150-180 mph which is the speeds we would be flying at lower altitudes? Any physics guys wanna chime in.
Piloto Posted October 18, 2018 Report Posted October 18, 2018 (edited) 44 minutes ago, INA201 said: Interesting they used a Mooney wing. I guess it’s one of the only small aircraft that can reasonably reach 238 mph. What would it do at say 150-180 mph which is the speeds we would be flying at lower altitudes? Any physics guys wanna chime in. The 238 mph is the relative velocity 160mph + 78mph = 238mph. Although drones usually fly at a much lower speed than 78mph. Assuming a relative velocity of 200mph the total Energy impact would be 30% less, enough to scrape the paint As E=1/2mv^2 shows mass is also a significant factor. Meteorite impact at 20 times the speed of sound on a manned space vehicle exposed for 9 months trip to Mars is of major concern. It would make a clean hole on the spacecraft and occupants. José Edited October 18, 2018 by Piloto
Yetti Posted October 18, 2018 Report Posted October 18, 2018 I am betting if the propellers were on and spinning on the drone they would provide some useful deflection capability.
jaylw314 Posted October 18, 2018 Report Posted October 18, 2018 14 minutes ago, Yetti said: I am betting if the propellers were on and spinning on the drone they would provide some useful deflection capability. Nah, even at normal speeds the props are going so fast they just shatter into a bazillion pieces when they hit something solid. If you watch videos of drones crashing (no shortage of that), you don't see them hop to the side or anything when they crash--they do so with a satisfying "thud" and that's it.
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