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Nebakenezzer posted:So it was not a problem in airships Put the flight deck in the front of the carrier with a hole in the front where the air is still laminar Bonud points if used to stick a hole in the back too, so that carrier is kind of a hollow pipe flying through the air. With wings.
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Apr 14, 2020 19:09
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Give me 24 hours with a 747 and a circular saw and I'll show you what I mean
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Apr 14, 2020 19:09
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fun fact: ground effect works whether the "ground" is above or below the plane. if you fly less than one wingspan underneath a bridge, you'll get a burst of ground-effect-induced lift and potentially smack into the underside. so, you know, be careful about that runway tube.
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Apr 14, 2020 19:12
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You guys are not thinking big enough. Imagine an airship with six externally-mounted runways that run lengthwise of the aircraft. As jets land, the runways rotate inside the airship for servicing and maintenance. It’s like a revolver dogged a helicarrier.
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Apr 14, 2020 19:13
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Sagebrush posted:fun fact: ground effect works whether the "ground" is above or below the plane. if you fly less than one wingspan underneath a bridge, you'll get a burst of ground-effect-induced lift and potentially smack into the underside. so, you know, be careful about that runway tube. So if you were doing some Ace Combat style nonsense in a tunnel would the opposing ground effect forces cancel out?
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Apr 14, 2020 19:18
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Warbird posted:So if you were doing some Ace Combat style nonsense in a tunnel would the opposing ground effect forces cancel out? No, you'd just fly into the ceiling. Ground effect always gives you extra lift whether it's the result of a surface above or below the plane. Ground effect is often portrayed as some sort of "cushion" of air created when the plane settles close to the ground, because that's kind of how it feels to the pilot and it seems logical, but that's an oversimplification. The real reason has to do with vortex generation. When an airplane (any airfoil, technically) is creating lift, it creates wingtip vortices as a result of the air spilling over from the high-pressure underside of the wing to the low-pressure upper surface. The vortices are a system of moving air that carry energy away from the airplane -- energy that can no longer be used for lift -- so they are modeled as a form of drag called "induced drag." Producing more lift means a stronger pressure differential on the wing, which means stronger vortices, which means more energy leaves the plane, which means greater induced drag. This basic relationship is fundamental to aerodynamics. When flying close to the ground, however, the ground interrupts the tip flow and prevents the vortices from forming. Since the air can't spiral around, much less/no induced drag is created, and that sudden reduction in drag appears to the pilot like a burst of extra lift. So because the effect has to do with interrupted flow rather than creating a "cushion" underneath the plane, flying very close to a solid ceiling has the same result. The tip vortices break up, the drag suddenly drops, and the plane floats up and crashes into the bottom of the bridge. I think that theoretically it would also happen if you flew down a canyon with walls only slightly wider than your wingspan, interrupting the vortices on the sides instead of from underneath or above.
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Apr 14, 2020 19:38
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Sagebrush posted:No, you'd just fly into the ceiling. Ground effect always gives you extra lift whether it's the result of a surface above or below the plane. I’ve genuinely learned something. Thanks.
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Apr 14, 2020 19:43
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Incidentally if you want to learn about aerodynamics, this series is absolutely the best one I've seen. It's about 7 hours total and what else are you gonna do these days anyway? https://www.youtube.com/watch?v=V1oCDR3DBbo Yes it's quite ancient and it's narrated by literally a Nazi rocket plane scientist but the whole thing is extremely well put together and thorough. This guy's explanation of lift was the first time that I really got it, none of these dumb simplifications like the lonely molecules or the bouncing air, but the actual way that wings work. Highly recommended
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Apr 14, 2020 19:46
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Sagebrush posted:Incidentally if you want to learn about aerodynamics, this series is absolutely the best one I've seen. It's about 7 hours total and what else are you gonna do these days anyway? Flying into this rabbit hole, wingtips barely touching the sides.
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Apr 14, 2020 19:51
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Sagebrush posted:No, you'd just fly into the ceiling. Ground effect always gives you extra lift whether it's the result of a surface above or below the plane. So you need giant fans in the ceiling of your tube to create short-final windshear proportional to ground effect lift.
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Apr 14, 2020 19:56
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Inacio posted:outrageous fantasy airship competition with the right scenario to make someone draw up a flying airship/airstrip when? Why bother when we have Phil Foglio for this kind of nonsense? 
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Apr 14, 2020 20:32
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Neb is about to unleash some insane junior high school doodles.
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Apr 14, 2020 21:08
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Petition to rename airships "Nebbelins"
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Apr 14, 2020 21:14
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aphid_licker posted:Petition to rename airships "Nebbelins" Seconded!
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Apr 14, 2020 21:17
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Aeronautical Insanity: Every Day We Nebblin
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Apr 14, 2020 22:03
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hobbesmaster posted:
Fun when some electrical gremlin in the first plane ready to launch, prevents all other planes from launching as well.
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Apr 14, 2020 22:17
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God invented a jettison button for a reason.
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Apr 14, 2020 22:19
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Is this the point where we start posting Crimson Skies screenshots? I wonder if there's an easy way to get the models into a file that''s easily 3d printable...
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Apr 14, 2020 22:20
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Inacio posted:outrageous fantasy airship competition with the right scenario to make someone draw up a flying airship/airstrip when? 2007.  (it's being refueled by all those tankers simultaeously)
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Apr 14, 2020 22:21
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What’s refueling the tankers because they’re never disconnecting lol
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Apr 14, 2020 22:26
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Any of those helicarrier or other concepts need sci fi magic fuel sources to work like a fusion or antimatter reactor of some sort. Or an open cycle fission reactor that magically doesn’t spew radiation everywhere
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Apr 14, 2020 22:31
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bloops posted:What’s refueling the tankers because they’re never disconnecting lol those other tankers haven't arrived yet 
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Apr 14, 2020 22:35
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bloops posted:What’s refueling the tankers because they’re never disconnecting lol They just land on the mega carrier when they’re empty.
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Apr 14, 2020 22:40
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bloops posted:What’s refueling the tankers because they’re never disconnecting lol I'm just going to assume that the manta ray itself is nuclear powered and the tankers are to provide fuel for its air wing, like how it works with water-based aircraft carriers. e: I just noticed the hull on the bottom and the outriggers, so it seems it's a flying boat on top of everything else. 
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Apr 15, 2020 00:09
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Wingnut Ninja posted:e: I just noticed the hull on the bottom and the outriggers, so it seems it's a flying boat on top of everything else. There's no way you could land such a thing on solid ground.
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Apr 15, 2020 00:15
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Cat Mattress posted:There's no way you could land such a thing on solid ground. On a salt flat maybe
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Apr 15, 2020 00:17
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Wingnut Ninja posted:I'm just going to assume that the manta ray itself is nuclear powered and the tankers are to provide fuel for its air wing, like how it works with water-based aircraft carriers. Being a flying boat is the most sensible thing of it all. Where would you land it on land:P
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Apr 15, 2020 00:18
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bloops posted:Neb is about to unleash some insane junior high school doodles. I gotta finish existing posts first! I did just order a book from amazon on how to draw for partially that reason, though Cat Mattress posted:There's no way you could land such a thing on solid ground. There's definitely a life magazine which has illustrations of flying boat aircraft carriers
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Apr 15, 2020 00:42
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Psion posted:2007. 1966  (Do you like cutaway drawings? Here are more than you needed: http://www.spectrum-headquarters.com/lower_deck.htm)
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Apr 15, 2020 00:51
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Is this relevant yet?
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Apr 15, 2020 00:56
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Godholio posted:Is this relevant yet? imagine the refrigeration system to try to stop all that water from evaporating in 10 minutes
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Apr 15, 2020 00:59
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Godholio posted:Is this relevant yet? Ace Combat should do a flying version of that.
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Apr 15, 2020 01:08
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One moar post that is absurd: can I confess I sorta hate the Avenger's heli-carrier It needs a magic power source to fly, it crashes often and I can't remember any time SHIELD needed to launch aircraft RIGHT NOW, DAMNIT Like guys, we get it, you're shield, but just get a ship or something
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Apr 15, 2020 01:10
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Clearly Captain Marvell was very insistent that her Air Force friend got a flying aircraft carrier.
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Apr 15, 2020 05:38
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Inacio posted:imagine the refrigeration system to try to stop all that water from evaporating in 10 minutes Just use a swamp cooler. 
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Apr 15, 2020 05:58
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Sagebrush posted:Incidentally if you want to learn about aerodynamics, this series is absolutely the best one I've seen. It's about 7 hours total and what else are you gonna do these days anyway?  I just watched the intro. Prof. Lippisch is precisely who I want narrating this It's like John Moses Browning teaches gun engineering
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Apr 15, 2020 15:43
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https://twitter.com/360tv/status/1250367761416626176Google Translate posted:SK posted a video of last year's SuperJet disaster at Sheremetyevo
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Apr 15, 2020 16:36
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Nebakenezzer posted:
I like when he shits on the imperial system of units.
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Apr 15, 2020 16:37
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simplefish posted:1966 In retrospect, I was doomed to be an engineer because even as a child I remember wondering how the hell that thing stayed in the sky all the time. I loved that show, though. SciFi fantasy with puppets and aliens and mystery?? Fantastic!
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Apr 15, 2020 16:55
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Nebakenezzer posted:One moar post that is absurd: can I confess I sorta hate the Avenger's heli-carrier Ok, but the helicarriers parts are being built in litterally every voting district in America. It's actually a good thing they keep crashing because it keeps so many of the voting public employed.
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Apr 15, 2020 16:58
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