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Not so much "different", as "like a Velocity, but with an Audi car engine".
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Aug 7, 2021 22:08
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| # ? Jun 8, 2024 00:00 |
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Big Mean Jerk posted:Neb have you ever been to the Zeppelin Museum in Friedrichshafen? I went in 2008 and I remember it being pretty great, albeit small. No, sadly. One day.
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Aug 8, 2021 01:37
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 https://onemileatatime.com/news/pilot-testimony-american-airlines-flight/
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Aug 8, 2021 03:37
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wzm posted:Not so much "different", as "like a Velocity, but with an Audi car engine". who is he building this for lmao
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Aug 8, 2021 04:19
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Well okay so it's not just the passengers going off the deep end in the US these days.
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Aug 8, 2021 04:51
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Midjack posted:Well okay so it's not just the passengers going off the deep end in the US these days. "Now that the doors have been closed and you're all a captive audience...have you accepted Jesus Christ as your personal Lord and Savior?" Talk about a valid exit door procedure if I've ever heard one. 
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Aug 8, 2021 05:08
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E:FB
MisterOblivious fucked around with this message at 11:23 on Aug 8, 2021 |
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Aug 8, 2021 11:19
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Mao Zedong Thot posted:who is he building this for lmao On a sheet of paper, it’s a huge, attractive upgrade. The Audi engine puts out a ton more power, and should be less fiddly to fly, since the ECU manages the engine for you. I’d imagine he just has a throttle and a prop lever. On the ramp, it’s a loving disaster, for all the reasons that have become obvious to us.
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Aug 8, 2021 13:23
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Mao Zedong Thot posted:who is he building this for lmao I think at one point he said the goal is Cirrus performance but much cheaper. So I guess by inference the target market is Cirrus people who are cheap?
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Aug 8, 2021 15:52
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MrYenko posted:On a sheet of paper, it’s a huge, attractive upgrade. The Audi engine puts out a ton more power, and should be less fiddly to fly, since the ECU manages the engine for you. I’d imagine he just has a throttle and a prop lever. I would have a lot of questions about the ECU (and general engine) operation in the temp and pressure bands that aircraft is supposed to operate in. The Audi engineers just would even be thinking about those conditions.
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Aug 8, 2021 15:56
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Sagebrush posted:So I guess by inference the target market is Cirrus people who are cheap? “I’m a Cirrus guy, but on the cheap” sounds like a checkbox for being instantly denied the option to buy life insurance coverage.
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Aug 8, 2021 16:03
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Mao Zedong Thot posted:who is he building this for lmao https://web.archive.org/web/20201113202245/http://www.raptor-aircraft.com/ "It's a luxury SUV for the sky." It was being pitched at the kind of person who could read this: https://web.archive.org/web/20201113223240/http://www.raptor-aircraft.com/design.html and not laugh themselves senseless over his claims about area ruling and so forth. He literally believed he was going to smoke the SR22's aerodynamics as a first-time airplane designer. So, Raptor was supposed to do 300KTAS at 25K feet. This is the accident flight: https://flightaware.com/live/flight/N352TD/history/20210806/1122Z/KMHK/L%2040.62667%20-97.67139/tracklog The height/speed graph is telling. What he actually built is an overweight (and likely draggy) hippo of an airframe which struggles to climb because he doesn't understand how to design cooling induction/flow /exhaust or twin turbos. (Worse than doesn't understand, really, he actively resisted advice from people who do understand those topics.)
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Aug 8, 2021 20:47
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From kathrynsreport:
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Aug 8, 2021 20:55
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BobHoward posted:The height/speed graph is telling. What he actually built is an overweight (and likely draggy) hippo of an airframe which struggles to climb because he doesn't understand how to design cooling induction/flow /exhaust or twin turbos. (Worse than doesn't understand, really, he actively resisted advice from people who do understand those topics.) Kind of the Zybourne Clock of personal aircraft
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Aug 8, 2021 21:31
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I’m the dribble of engine oil leaking between the cowling seams. That thing let go in a major way.
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Aug 8, 2021 21:52
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Is that the one that uses the Audi engine?
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Aug 8, 2021 22:06
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Nebakenezzer posted:Kind of the Zybourne Clock of personal aircraft Imagine 3 temperature needles on the edge of the green. Push one of them off of the green. My engine works the same way.
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Aug 8, 2021 22:26
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priznat posted:Is that the one that uses the Audi engine? Yes, and he gets his engines from junkyards because they're out of production and Audi never sold it as a crate engine anyways.
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Aug 8, 2021 22:30
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This is the best ending possible. edit: almost Godholio fucked around with this message at 00:54 on Aug 9, 2021 |
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Aug 8, 2021 22:36
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Godholio posted:This is the best ending possible. The best ending possible would have broken the spar or had a post-evacuation fire. Unfortunately, that’s rebuildable, so he gets another shot at offing himself.
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Aug 8, 2021 22:48
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Godholio posted:This is the best ending possible. "ending" is optimistic
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Aug 8, 2021 22:59
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BobHoward posted:Yes, and he gets his engines from junkyards because they're out of production and Audi never sold it as a crate engine anyways. jesus christ. I guess the only surprise here is that the end result here was fatality-free.e: so far
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Aug 8, 2021 23:44
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priznat posted:
Fatality-free, but the test program is young.
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Aug 8, 2021 23:46
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What are the odds that he attempts to rebuild and refly the wreckage rather than starting again?
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Aug 8, 2021 23:49
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Thomamelas posted:What are the odds that he attempts to rebuild and refly the wreckage rather than starting again? 110%.
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Aug 8, 2021 23:50
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BobHoward posted:It was being pitched at the kind of person who could read this: lmfao. So buddy fancies himself an aerodynamicist but doesn't seem to realize that the area rule is only applicable in the transonic regime? Even if he managed to hit 300 knots true at 25,000 feet, Mach 1 up there is just over 600 knots. At Mach 0.48 absolutely none of the air around the plane is going to become locally supersonic, which is the key factor in the onset of the wave drag that area ruling aims to prevent. No poo poo the SR22 isn't area ruled! It's completely irrelevant in its flight envelope. This guy has the biggest case of Engineer Brain on the planet. Sagebrush fucked around with this message at 01:55 on Aug 9, 2021 |
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Aug 9, 2021 00:39
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You're just jealous that you didn't look up random aeronautical terms on wikipedia and put them on a website like he did.
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Aug 9, 2021 00:56
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Cojawfee posted:You're just jealous that you didn't look up random aeronautical terms on wikipedia and put them on a website like he did. DISRUPTIVE
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Aug 9, 2021 01:29
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I assume he now has to pay up for the corn crop he just destroyed.
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Aug 9, 2021 02:12
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coldpudding posted:I assume he now has to pay up for the corn crop he just destroyed. some insurance company will, either the farmer's or his
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Aug 9, 2021 13:15
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MrYenko posted:DISRUPTIVE “It’s those unscheduled cornfield and housing development stops that seem to interrupt the flow of my day!” - George Carlin
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Aug 9, 2021 16:01
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Raptor guy is truly the kind of trash fire that you can't look away from. I just hope he doesn't kill anyone who has the bad luck of being at the location where he'll crash... Can't wait for the next installment of a non-fatal crash or dramatic mechanical failure.
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Aug 9, 2021 18:57
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Is there a cliffs or tl;dr about Raptor guy? I'm not sure I know much about it.
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Aug 9, 2021 19:06
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slidebite posted:Is there a cliffs or tl;dr about Raptor guy? I'm not sure I know much about it. some idiot is building a conversion of a kit plane and at every turn, resists taking advice from people who know better, posts everything on youtube. it's a slow motion plane crash, though now he's got 1 regular speed crash under his belt.
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Aug 9, 2021 19:16
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Regarding Jerry and Raptor guy Venkman: Oh wonderful, we have to get these two together Egon: I think that would be extraordinarily dangerous
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Aug 9, 2021 19:26
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I think the posts about him start here: https://forums.somethingawful.com/showthread.php?noseen=0&threadid=3276654&pagenumber=1798&perpage=40#post508848721 I don't think anyone has a cliff's notes version yet so here it is: - He is trying to build a plane that performs like a Cirrus but costs much less - I believe he's mostly funded development himself but also takes "down payments" from "investors" like a kickstarter or whatever - It's basically a Velocity XL (existing kit design) airframe with his own modifications, the biggest one being an Audi automobile diesel engine instead of a more traditional aviation engine - He gets these engines from junkyards because Audi never sold it by itself -- only in cars - He has hosed up the powerplant design and installation in multiple ways, most notably installing the twin turbochargers backwards (!) so that the intake is choked and the engine rapidly overheats - Multiple people, including a real Audi engineer who worked on that specific engine, have told him that he's doing it wrong and it's going to blow up, but he ignores them (terminal dunning-kruger brain) - The rest of the plane also shows generally shoddy workmanship, like bent actuator rods for the landing gear ("they all came that way") and obvious rough machining marks on his propeller drive pulleys, in line with him trying to do everything on the cheap - He originally had hired a crew of test pilots to help him do the flight testing, but he fired them all after they gave him what he thought was too many changes to make before they'd get in the plane - As a result he has been doing the flight testing himself, though people have been begging him to sort out the engine problems before taking to the air - In the flight test videos the plane has displayed a lack of power (because the turbochargers are installed backwards), serious overheating issues (ibid) and some really troubling oscillations, though it's unclear if the oscillations are due to fundamental weight and balance issues or a lack of pilot skill -- he says it's turbulence from the landing gear (it isn't) - He has only been flying lazy patterns around his home airport in Arkansas(?) but recently decided to fly to Idaho for some reason associated with money and investors; on this flight the propeller drive fell apart because he reused a $1 single-use lock washer and he crashed in a cornfield, but survived I'm sure I'm forgetting something.
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Aug 9, 2021 19:28
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oh gently caress you can buy raptor swag https://raptoraircraft.logosoftwear.com/
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Aug 9, 2021 20:22
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Mao Zedong Thot posted:oh gently caress you can buy raptor swag https://raptoraircraft.logosoftwear.com/ 35 bucks for a t-shirt lmao, I'd by one just for kicks if it was 20 or so.
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Aug 9, 2021 20:37
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Sagebrush posted:I think the posts about him start here:  Midjack posted:35 bucks for a t-shirt lmao, I'd by one just for kicks if it was 20 or so.
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Aug 9, 2021 20:53
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Someone touch the poop and tell him to put a box of washers on his store.
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Aug 9, 2021 21:28
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