ShawnG said:All this was done by some incredible people with slide rulers in the 1950's.
1950s - Fixed that for you. 
It would blow my mind if they isn't an even gnarlier plane by now - whether we know about it or not.
ShawnG said:All this was done by some incredible people with slide rulers in the 1950's.
1950s - Fixed that for you.
It would blow my mind if they isn't an even gnarlier plane by now - whether we know about it or not.
In reply to ShawnG :
In a way the speed is limited by the aerodynamics. There is cooler air the higher you go, so you can get more speed. But the air is so thin at the still-classified max altitude (There is an official max, and unofficially, the planes operated higher than that) that the aerodynamics needs a lot of speed to maintain enough lift.
This is the "coffin corner" of the flight envelope - you can't slow down or you'll fall out of the sky, but you can't speed up either. I don't know how wide a margin the SR71 operated in, but the U2 operated in a 5 knot speed window.
kazoospec said:With a slight headwind, apparently, an F-22 Raptor can be flown backwards. The same plane can cruise supersonic without afterburner. At recent airshow, I also saw one go from a nose high "hover" to complete a full pirouette in about 4 lengths of the plane. It is also the single loudest human creation I've ever witnessed.
Have you seen one do the falling leaf in person? Good god! I work at an afb and was watching them practice for an air show when they were pretty new, he went into a vertical hover and I was like “oh cool, not just rc stuff doing that anymore”, then brother just shut it down and started to fall in a less than intentional looking flutter down and at the last minute he got it pointed straight down and lit it off, went throttle up and pulled out, I was absolutely not prepared for any of that. When he started to fall, I was sure it was unintentional lol.
KyAllroad (Jeremy) said:In 1959 this dude nearly put himself into orbit in an F4 Phantom. Talk about big brass ones! (And he didn’t “shut down” the engines, they berkeleying flamed out due to lack of oxygen at 90,000 feet)
It blows my mind that the OP read that link, but the one intended for it, didn’t.
Also, J-3 Cubs can hover with a slight headwind. Although, the only thing super about its cruise is the view 
The Valdez STOL competition in Alaska is won by the shortest takeoff and landing roll added together.
The record as of 2018 is...25ft.
Apparently I was born only a couple months before the Teletubbies sun baby.
Also probably gonna make a lot of you feel old here. But it really messed with my head when I was 19 and figured out that Dakota Fanning was older than me.
Most Porsche 911s are water cooled.
I've never considered that this 2004 Dodge truck had an auto dimming mirror. Guess that means it works.
Mazdax605 said:Einhorn is Finkle. Finkle is Einhorn.
Dude.... Look at the fruit!!!!!!
ShawnG said:Jet engines have problems handling supersonic air coming into them. It results in a flameout or "unstart". It pretty much put the fire out in the engine.
The SR-71 is capable of flying at mach 3.3.
The J58 engines in the SR-71 take the incoming air, slow it down to subsonic speed, dump the excess air via a bypass system, feed the subsonic air to the compressor where it is shoved into the combustor, fuel is added, ignited, sent through the power turbines that drive the compressor, then into the afterburner where more fuel is added and the exhaust comes out the back faster than the aircraft is traveling.
The fuel in the SR-71 is also the hydraulic fluid and serves as a coolant to cool down the leading edge of the wing so it won't be damaged by the heat generated at speed.
The J58 is also the only engine ever designed to use reheat (afterburner) 100% of the time.
The maximum flight speed of the SR-71 isn't limited by the capabilities of the airframe or aerodynamics, it's limited by the temperature of the air entering the engine's compressor section which is only rated for 800 degrees Fahrenheit.
All this was done by some incredible people with slide rulers in the 1960's.
The friction of the air going over the skin of the SR-71 heats it up, causing it to expand. For this reason, there are gaps in the fuel tanks that heat up and seal at speed. This means that the planes leak fuel when taxiing for takeoff!
The Z33 has been in production for longer than the C3 Corvette, even if you count midyears as C3s.
The small block Chevy was introduced for the 1955 model year and discontinued for production vehicle purposes in the 2002 model year. That is a span of 47 years, and there were a few major redesigns along the way as well as critical dimensions changes (two different rod bearings, three different crank bearings).
The Mazda rotary was introduced for the 1967 model year and discontinued for production cars in the 2012 model year. That is a span of 45 years, and there was only one major redesign in that timeframe. The main and rotor bearings from a '67 Cosmo will work in a '12 RX-8 and vice-versa, as will some of the parts on the sides of the rotors. The oil control rings even retained the same part number.
A geologist does not like the idea of the anthropocene. He argues that if dinosaurs became as intelligent as humans and created a high-tech civilization in the last 7,000 years of their existence, we'd be very lucky to find any hint of it 
https://www.theatlantic.com/science/archive/2019/08/arrogance-anthropocene/595795/
Kind of a scholarly version of this (NSFW language, it's George Carlin after all):
In reply to GameboyRMH :
Kinda reminds me of the thought that the Tyranosaurus arrived on the scene closer in time to us than Stegosaurus was a distinct species. 66 million years ago vs 100-150 million years ago.
Stegosaurus and its relatives were around for nearly 50 million years. T-Rex? A measely 3 million. Human civilization? 12,000 years.
I think this is "mind blown" stuff because we're always taught that dinosaurs were a temporary phase of earth's history, when in reality, they dominated Earth for 300 times the amount of time homo-sapians have been a species.
If an ancient alien race kept swinging by Earth every couple of million years to check up on it, it'd would have been more likely to encounter a Dinosaur than it would humans, and our civiliazation could come and go while those aliens took a bathroom break.
Reminds me of the fact that all of the water on Earth has passed through a dinosaur at least once:
akamcfly said:ShawnG said:All this was done by some incredible people with slide rulers in the 1950's.
1950s - Fixed that for you.
It would blow my mind if they isn't an even gnarlier plane by now - whether we know about it or not.
There may have been at some point, but there's no need for an SR71 replacement while stealth drones and things like this are operating:
https://gizmodo.com/misty-stealth-satellite-hides-perfectly-while-watching-5162837
The original Jeep Go-Devil engine was first built in 1927 in the Whippet. 48 hp. Later improved, lighter flywheel etc to 63 hp in the Willys Overland in 1941. An overhead intake valve cyl, head was added in the CJ3B for 75 hp. The bore and stroke never changed . I think compression increase from around 5/1 to 7.5/1
Not sure the year it was discontinued.
Duke Daughter #1 is now exactly the same age I was when she was born.
Quiet Riot was basically just a Slade cover band
GameboyRMH said:A geologist does not like the idea of the anthropocene. He argues that if dinosaurs became as intelligent as humans and created a high-tech civilization in the last 7,000 years of their existence, we'd be very lucky to find any hint of it
https://www.theatlantic.com/science/archive/2019/08/arrogance-anthropocene/595795/
Kind of a scholarly version of this (NSFW language, it's George Carlin after all):
The author actually makes really, really valid points. That was an interesting read.
Female kangaroos have 3 bob costas
Vanilla flavoring is made from beaver butt juice.
I’m sorry. Really, but you should know that so you can avoid eating anything that came from a beaver’s butt.
In reply to Carbon :
You're not the boss of me.
I had a girlfriend who wore a lot of vanilla scented things, so I grew a strong affection for the smell of vanilla. But now you have me wondering if I'm just a furry who hasn't figured that out yet. Thanks.
In reply to Knurled. :
I had just finished off a bottle of A&W when I read his post so I just ignored it.
In reply to Daylan C :
And I just remembered that my mom used to bake a lot of cookies and cake and stuff (srsly, one year I think she made 20,000 cookies to give away at Christmas, starting the process just before Halloween) and one thing that she always, without fail, because to do otherwise is to invidte disaster, is to NEVER USE IMITATION ANYTHING. So she would use genuine vanilla extract, which is vanilla bean squeezins.
I don't know what the girlfriend wore. If I could borrow your time machine, I could go ask, but all I'd probably get is "who the hell are you, go away"
You'll need to log in to post.
