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hobbesmaster posted:Parachutes and supplemental oxygen aren't uncommon for test flights, even airliners.
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Oct 10, 2020 02:57
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GH, wasn't it you who talked about the bail hatch on the E-3 and how it was kind of a quaint concept that'd be useless in reality?
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Oct 10, 2020 05:59
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BIG HEADLINE posted:GH, wasn't it you who talked about the bail hatch on the E-3 and how it was kind of a quaint concept that'd be useless in reality? Just like "don't push this button" invites pushing it, I really want to find out just how fast that door acts.
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Oct 10, 2020 06:05
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BIG HEADLINE posted:GH, wasn't it you who talked about the bail hatch on the E-3 and how it was kind of a quaint concept that'd be useless in reality? It's also been rendered no longer functional in the past couple of years. There's a big yellow/black striped handle (like a couple foot long pipe) in the cabin that would be yanked down sharply to fire a couple of glorified shotgun shells to jettison the outer hatch. In the floor of the main deck (5 or 6 feet above that hatch) is a metal grate hatch that opens upward. You'd jump through that. And hope you don't get blown against all the UHF blade antennae along the bottom of the fuselage. For obvious reasons, nobody would want to try that, but it's doubtful if they even COULD. There aren't many situations where the aircraft is stable enough to actually dump 20-40 people out through that thing but not in controlled flight or otherwise requiring the crew to bail out. Also they removed the parachutes in the 90s, so bon voyage! I don't know if/how it was ever tested, but it hadn't happened within memory of anyone I knew. It was just an outdated part of the surveillance officer's preflight checklist. Excuse the blur, and ignore the purple light. You can see the chute handle in the first pic, and the grate hatch that's directly below it in the second.   Fun fact: that double-wide cabinet behind the controllers in the second picture is basically the graphics card for the outgoing computer system. That nook behind it is where the Computer Diagnostic & Maintenance Technician Godholio fucked around with this message at 07:51 on Oct 10, 2020 |
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Oct 10, 2020 07:37
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https://twitter.com/bob_burrough/status/1314476772662992896
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Oct 10, 2020 09:30
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I feel like your aircraft company "Boom" is bad feng shui.
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Oct 10, 2020 10:17
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What was the point of that "safety rope"? If he fell off, he'd just be hanging from the plane as it crashed.
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Oct 10, 2020 13:27
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Why would the plane crash?
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Oct 10, 2020 13:34
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Anarcho-Commissar posted:What was the point of that "safety rope"? If he fell off, he'd just be hanging from the plane as it crashed. Theater.
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Oct 10, 2020 14:47
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Sagebrush posted:Why would the plane crash? If he fell before restarting
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Oct 10, 2020 17:11
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Anarcho-Commissar posted:If he fell before restarting He would have plenty of time to climb back up before that plane got near the ground.
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Oct 10, 2020 17:30
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What would the effect on stability on a plane that small with someone falling out and then tugging on one side as the rope caught them?
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Oct 10, 2020 17:59
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A bit, but it'll be relatively close to CoG. That video is though, as mentioned, pure theater.
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Oct 10, 2020 18:06
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bull3964 posted:What would the effect on stability on a plane that small with someone falling out and then tugging on one side as the rope caught them? Depends on exactly where the rope is attached, and ignoring shock loading of him reaching the end of said rope, but assuming somewhere near or (preferably,) aft of the CG, very little. He’d add a ton of parasitic drag to an airplane that’s already hilariously underpowered, but nothing world-shattering. Super Cubs (which are pretty similar, but with a ton more power) are extremely popular as banner-planes, which is a similar aerodynamic problem.
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Oct 10, 2020 18:09
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MrYenko posted:Depends on exactly where the rope is attached, and ignoring shock loading of him reaching the end of said rope, but assuming somewhere near or (preferably,) aft of the CG, very little. He’d add a ton of parasitic drag to an airplane that’s already hilariously underpowered, but nothing world-shattering. Interesting way to describe dead-stick
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Oct 10, 2020 18:13
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Unreal_One posted:Interesting way to describe dead-stick Lol, a J-3 is underpowered when the engine is running. Its no huge change when it isn’t. 
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Oct 10, 2020 18:15
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MrYenko posted:Lol, a J-3 is underpowered when the engine is running. Its no huge change when it isn’t. Which is doubly amusing given that Taylor had to re-engine the prototype E-2 for being underpowered.
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Oct 10, 2020 19:48
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MrYenko posted:Lol, a J-3 is underpowered when the engine is running. Its no huge change when it isn’t. Wasn't there an engine-less version of the J-3 built for training WW2 glider pilots? It was certainly some kind of basic trainer with a 50-something horsepower engine which was chosen on the basis that it had so little power that it was already a half-decent glider in any case, and the pilots found there was almost no difference in the way (or speed) the glider version flew in comparison to the original.
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Oct 10, 2020 21:30
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I posted this in the Cold War thread but I feel like adding LED light strips to fighters would be at home here too. https://twitter.com/AnnQuann/status/1314929136729636864
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Oct 10, 2020 23:34
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Thomamelas posted:I posted this in the Cold War thread but I feel like adding LED light strips to fighters would be at home here too. Not shown: North Korean Air Force MX techs openly weeping for all the time they're going to be chained to those airframes to bring them back to combat readiness.
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Oct 10, 2020 23:37
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BalloonFish posted:Wasn't there an engine-less version of the J-3 built for training WW2 glider pilots? It was certainly some kind of basic trainer with a 50-something horsepower engine which was chosen on the basis that it had so little power that it was already a half-decent glider in any case, and the pilots found there was almost no difference in the way (or speed) the glider version flew in comparison to the original. There was the TG-6, glider version of the Taylorcraft L-2, which is a cousin to the Cub. There was a glider version of the J-3 too, but I forget what it is off the top of my head.
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Oct 11, 2020 01:13
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Nebakenezzer posted:So, you have a union plant that does excellent aerospace work, and this non-union plant that you tried and failed to get to do that work for cheaper, and it's done tremendous damage to business and your reputation. What do you do? 1. This has been known to be coming for years now. The 787-10 can only be built in SC, because the parts don't fit in the 747-LCF for transport to Everett: https://www.seattletimes.com/business/everett-may-be-left-out-of-787-10-plans/ 2. The union plant hasn't exactly been covering itself with glory, either. The KC-46s have had tons of FOD and QC gripes.
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Oct 11, 2020 01:23
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Thomamelas posted:I posted this in the Cold War thread but I feel like adding LED light strips to fighters would be at home here too. The RGB Angels
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Oct 11, 2020 04:11
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vessbot posted:There was the TG-6, glider version of the Taylorcraft L-2, which is a cousin to the Cub. There was a glider version of the J-3 too, but I forget what it is off the top of my head. Piper TG-8; there was also the Aeronca TG-5, derived from the L-3. Interestingly, postwar some TG-8s were converted into J-3 equivalents by adding an engine. I don't know if this was the case with the other two types.
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Oct 11, 2020 12:05
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Thomamelas posted:I posted this in the Cold War thread but I feel like adding LED light strips to fighters would be at home here too.
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Oct 11, 2020 12:57
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hobbesmaster posted:Parachutes and supplemental oxygen aren't uncommon for test flights, even airliners. I have this distinct memory from when the a380 was being developed there was a design that included a slide in the middle of the fuselage that was basically a bail out hatch for all the passengers. It's so ridiculous is obviously never was implemented but still I remember as a teenager being all woah 
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Oct 11, 2020 13:03
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Any of you folks in the cargo game know why a bunch of polar 747’s just went to CVG?
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Oct 11, 2020 16:12
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fknlo posted:Any of you folks in the cargo game know why a bunch of polar 747’s just went to CVG? CVG is one of our major bases, that’s not out of the ordinary.
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Oct 11, 2020 16:13
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e.pilot posted:CVG is one of our major bases, that’s not out of the ordinary. It was just weird because we pretty much never see Polar's let alone several of them. I feel like I haven't worked one since I've been at ZDV.
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Oct 11, 2020 16:56
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Phanatic posted:2. The union plant hasn't exactly been covering itself with glory, either. The KC-46s have had tons of FOD and QC gripes. Move "guy in the tail" to "guy in a cockpit with a bespoke 3d computer miracle visual system" may be the single worst political pork barrel in the past...20 years?
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Oct 11, 2020 18:43
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Apologies if this is the wrong thread or has been discussed before but I couldn’t find it. The guy who started the Raptor aircraft company finally test flew his plane after an insane design and build cycle and a bunch of test pilots walked away from it. The video is absolutely terrifying and has the plane going through some pretty wild oscillations and the engine nearly overheating for the entire ~2 minute flight. https://www.youtube.com/watch?v=_H9a2tGDaHE Some background: software dude decides he can build a canard design that outperforms a SR-22 for 150K. Engine is an Audi V6 diesel on a gigantic belt reduction. The rest of the plane is also super janky. Luckily the whole history of the endeavor is documented on his YouTube channel if you feel the need to go down a rabbit hole. i own every Bionicle fucked around with this message at 21:15 on Oct 11, 2020 |
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Oct 11, 2020 19:28
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“The rest of the plane is super janky” implies that the powerplant is not.
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Oct 11, 2020 19:38
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Nebakenezzer posted:Move "guy in the tail" to "guy in a cockpit with a bespoke 3d computer miracle visual system" may be the single worst political pork barrel in the past...20 years? That's not the big problem though...Boeing is failing at the basics of building airplanes. Moving the boom operator up front should be trivial, we did it with tail gunners decades ago. But loving up fuel tank seals, leaving ladders in compartments...this is more than just overselling "advanced" tech.
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Oct 11, 2020 19:50
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Godholio posted:That's not the big problem though...Boeing is failing at the basics of building airplanes. Moving the boom operator up front should be trivial, we did it with tail gunners decades ago. But loving up fuel tank seals, leaving ladders in compartments...this is more than just overselling "advanced" tech. Yeah but did you see their quarterly reports for a bit there when they cut all those corners? What? Long term? What’s that?
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Oct 11, 2020 19:55
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Godholio posted:That's not the big problem though...Boeing is failing at the basics of building airplanes. Moving the boom operator up front should be trivial, we did it with tail gunners decades ago. But loving up fuel tank seals, leaving ladders in compartments...this is more than just overselling "advanced" tech. If it’s a Boeing, it ain’t going!
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Oct 11, 2020 20:11
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Midjack posted:If it’s a Boeing, it ain’t going! Made in Everett, not airworthy yet!
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Oct 11, 2020 20:37
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i own every Bionicle posted:Apologies if this is the wrong thread or has been discussed before but I couldn’t find it. The guy who started the Raptor aircraft company finally test flew his plane after an insane design and build cycle and a bunch of test pilots walked away from it. The video is absolutely terrifying and has the plane going through some pretty wild oscillations and the engine nearly overheating for the entire ~2 minute flight. Seems like Aeronatical Insanity to me! Comments are also amazing, with kit-canard builders telling him his canards are stalling, and an audi diesel-engineer telling him his audi diesel turbo setup is hosed.
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Oct 11, 2020 21:02
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Platystemon posted:“The rest of the plane is super janky” implies that the powerplant is not. Good point, edited to include the word “also” Apparently he has rushed to fly it himself because he has a few million in pre-orders and is a few years behind schedule. Somebody found video of it from the tower, where it also looks cartoonishly unstable: https://www.youtube.com/watch?v=uLO2xdDGLqk
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Oct 11, 2020 21:15
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i own every Bionicle posted:Good point, edited to include the word “also” Comments are turned off. Learn more 
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Oct 11, 2020 21:37
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Love when my plane oscillates up and down 20 feet when I'm trying to land.
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Oct 11, 2020 21:47
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