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Feb 15, 2015 00:21
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helno posted:Even more crazy is that it changes pitch based on load. It doesn't, you're thinking of Aeromatic propellers.
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Feb 15, 2015 00:22
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vessbot posted:It doesn't, you're thinking of Aeromatic propellers. Not to be confused with the useless but great-smelling aromatic propellers.
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Feb 15, 2015 00:23
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Brovine posted:Is there any point to that one-bladed propeller? The idea is that the airflow from one blade interferes with that of the others, so everything else being the same, the fewer blades the better. There's the obvious problem of the unbalanced mass swinging around, but that was easily solved with a... counterbalance. But there was also the less obvious problem of the thrust from only one blade pulling forward and thereby bending the crankshaft diagonally in the crankcase and that was never solved. vessbot fucked around with this message at 00:42 on Feb 15, 2015 |
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Feb 15, 2015 00:29
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Colonial Air Force posted:Not to be confused with the useless but great-smelling aromatic propellers. And both great when whirled around the nose
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Feb 15, 2015 00:34
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vessbot posted:It doesn't, you're thinking of Aeromatic propellers. The one pictured is an Everel which does change pitch. The large off center pivot gives it away. http://www.rexresearch.com/unibladeprop/onebladeprop.htm
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Feb 15, 2015 00:49
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Colonial Air Force posted:Not to be confused with the useless but great-smelling aromatic propellers. I laughed too drat hard at this.
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Feb 15, 2015 01:15
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Brovine posted:Is there any point to that one-bladed propeller? There is at least one.
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Feb 15, 2015 01:16
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bobfather posted:Malaysia flies A380s. And there's even a chance you'll break Mach 1 as the pilot is nose diving it into :CNN: Honestly thought it was damaged at first, but very interesting.
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Feb 15, 2015 01:30
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vessbot posted:The idea is that the airflow from one blade interferes with that of the others, so everything else being the same, the fewer blades the better. So a zero-bladed prop would be even more efficient!  fake edit: Chiwie posted:There is at least one. 
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Feb 15, 2015 01:32
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Spaced God posted:So a zero-bladed prop would be even more efficient! It's called a ramjet.
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Feb 15, 2015 01:34
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When was the last time you noscoped at Mach 0.48? I mean while not in a passenger plane http://www.reddit.com/r/gaming/comments/2vwqrz/when_you_have_a_long_flight_you_find_a_way/
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Feb 15, 2015 02:07
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MrLonghair posted:When was the last time you noscoped at Mach 0.48? I mean while not in a passenger plane Until you zoom in, it kinda looks like the guy in the back is laying down some sick beats.
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Feb 15, 2015 02:18
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bitcoin bastard posted:Until you zoom in, it kinda looks like the guy in the back is laying down some sick beats. Who says he isn't?
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Feb 15, 2015 02:43
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Feb 15, 2015 02:56
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Is it wrong that my main thought was "that looks like a cool house"?
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Feb 15, 2015 03:02
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helno posted:The one pictured is an Everel which does change pitch. The large off center pivot gives it away. Are we looking at different pictures? The one that Mrchips posted, on the Cub, is a carved wooden prop that is clearly fixed pitch with no pivot of any kind.
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Feb 15, 2015 04:44
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wdarkk posted:Is it wrong that my main thought was "that looks like a cool house"? Better not be somewhere that gets much snow; that huge flat roof is a disaster waiting to happen.
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Feb 15, 2015 04:54
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Wingnut Ninja posted:Better not be somewhere that gets much snow; that huge flat roof is a disaster waiting to happen. It's not entirely flat, but yeah. I've seen some like it but this is the south.
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Feb 15, 2015 05:25
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Wingnut Ninja posted:Better not be somewhere that gets much snow; that huge flat roof is a disaster waiting to happen. Obviously, you'd hover your flying saucer over the roof to blow the snow off. I've always wondered whether any of the people who design various flying cars (or the Popular Mechanics editors who've insisted they're "coming soon!" since the 50's) have ever stopped to think about the inevitable consequences of giving a nation of terrible drivers widespread access to something capable of flight.
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Feb 15, 2015 05:33
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azflyboy posted:Obviously, you'd hover your flying saucer over the roof to blow the snow off. I think it'd cull the herd pretty quickly, to be honest.
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Feb 15, 2015 05:38
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I thought I saw an Antonov at KSEA yesterday night. Way North in the cargo area, looked like a 747 from the front, but the wings were way too high.
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Feb 15, 2015 05:54
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Feb 15, 2015 06:00
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I'm the one on the left.
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Feb 15, 2015 08:32
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Yeah, no, that isn't how a wing works. Right shape, wrong physics.
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Feb 15, 2015 10:56
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Thanks delta for helping me find out about the 4 hour limit on skype calls. The agent picked up at 3 hours 59 minutes and 20 seconds.  I'm calling about something they can actually help me with too because its an itinerary in asia, apparently everyone on the east coast needs to call up to be told "theres a blizzard, theres literally nothing that can be done because airplanes can't take off or land in blizzards" hobbesmaster fucked around with this message at 11:08 on Feb 15, 2015 |
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Feb 15, 2015 11:06
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vessbot posted:Are we looking at different pictures? The one that Mrchips posted, on the Cub, is a carved wooden prop that is clearly fixed pitch with no pivot of any kind. The picture that Mrchips posted is literally on the page I linked too describing how it works.  A few more pictures of that exact plane. https://www.backcountrypilot.org/forum/one-bladed-propellers-12893
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Feb 15, 2015 12:19
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This loving twitter... "@gyellc My apologies, what doesn't make sense to you? *CA" "@DeltaAssist that I can't be put on another flight til Tuesday, I don't care if I have to stop over or go to a different airport need to fly" You know what else will prevent you from getting to your meeting? Dying due to icing you fuckhead. You know where theres no ice? Taipei. Tokyo. LAX. Places where I'm trying to fly in just a few hours. I've spent 8 hours on hold when I could have been touring on my only free day in Taipei if fuckheads like you weren't tying up all the airline's customer service resources globally.
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Feb 15, 2015 14:08
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Though I suppose if you had to chose an aircraft to fly in icing the MD-80 isn't a death trap..
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Feb 15, 2015 14:24
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Welp :drones: http://www.npr.org/blogs/thetwo-way/2015/02/15/386464188/commercial-drone-rules-to-limit-their-speed-and-altitude quote:In short, the proposed rules that have been a decade in the making would limit drones weighing no more than 55 lbs to flying no more than 100 mph at an altitude no higher than 500 feet. The FAA would ban their use at night and near airports. And, they could only be operated by someone with a certification who keeps the vehicle "in line of sight" at all times. I wonder how much the line of sight idea will bring operators up in arms. Now if they would get to Eliminating the 3rd Class medical issue that would be grand. Edit: whoops forgot this little tidbit. quote:The FAA also will require anyone using Unmanned Aircraft Systems (UAS) for commercial purposes to obtain a special pilot certification to operate them.
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Feb 15, 2015 17:57
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Guess it depends on what a drone pilot certification looks like. Like just passing a test on the rules?
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Feb 15, 2015 18:11
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crosspost not about drones:mlmp08 posted:Cool video of TU-95 engines at work:
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Feb 15, 2015 18:16
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smackfu posted:Guess it depends on what a drone pilot certification looks like. Like just passing a test on the rules? Other than knuckle heads doing stupid poo poo which is already illegal and not a good idea (airports of example), is there even a drone "problem" which needs to be addressed?
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Feb 15, 2015 18:30
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I suggest you go fly drones in Somalia.
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Feb 15, 2015 18:34
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Only if they have hellfires  Serious question though, is it really a problem? You hear about idiots flying near airports every now and then, but in the big picture is there even a problem that needs to be solved? I see the potential for unintended consequences being pretty large. Hopefully if something like this does go ahead it gets tightened up significantly in the review/consultation phase.
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Feb 15, 2015 18:45
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If the history of aviation proves anything, it's that you should wait until something happens before you try to do anything about potential issues.
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Feb 15, 2015 20:08
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helno posted:The picture that Mrchips posted is literally on the page I linked too describing how it works. OK, got it! I stand corrected. I see now, the prop teeters forward and back on the hub... but the teetering axis itself is offset so that the blade twist changes as it does so. Like a delta 3 hinge on helicopters, and completely not visible on a still pic because it's built into the hub.
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Feb 15, 2015 20:32
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It's not enforceable. Is the FAA going to run down someone flying their drone 501 feet above the Arizona desert getting sick panoramas? Are they going to be trolling Youtube for evidence of violations that already happened and nobody called in to report a horrible limb serving quadcopter accident? Sounds like a great use of federal resources while manned aircraft with actual mass are out violating rules too. Oh boy I see a drone flying over the airport let's escort down with an F-16 and arrest the pilo... oh wait. I can't buy a 172 hanging behind the checkout at Barnes and Noble. I can with a drone. Stop me. Koesj posted:I suggest you go fly drones in Somalia. With drones you can just bring the freedom to you. 
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Feb 15, 2015 20:40
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This poster loves police brutality, but only when its against minorities!
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Someday it's going to be a pocket bike style novelty to own a drone that's capable of lifting a human. Some hip youth pining for a vintage authenticity will attach manual controls.
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Feb 15, 2015 21:01
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Worthleast posted:I thought I saw an Antonov at KSEA yesterday night. Way North in the cargo area, looked like a 747 from the front, but the wings were way too high. You did. https://twitter.com/juliejohnsson/status/566093388265824256 
bennyfactor fucked around with this message at 21:17 on Feb 15, 2015 |
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Feb 15, 2015 21:14
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