Comments by "Solo Renegade" (@SoloRenegade) on "China Fact Chasers"
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@fyrchmyrddin1937 exactly.
Hypersonics are also stupid expensive, and so to use them like you would a TOW, when the TOW, Javelin, NLAW, and many others are getting it done at a fraction of the cost, is not justified. When you spend $150mil to take out a single T-72 from the 1980s, you're going to lose the war in the long run. Or when facing a T-55, why waste a Javelin when an $11k RPG-7 will be more than enough?
the US also evaluated supersonic vs subsonic cruise missiles decades ago, and found the subsonic Tomahawks were better. The supersonic missiles have to fly higher and could be detected farther away, where as the slower sea skimming missiles could get within a few missile before being detected. The slower cruise missiles were also cheaper and better able to be used more cost effectively to overwhelm defenses. There was more to their study/results than I'm saying. But they found subsonics made more sense overall, at least thus far.
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@alexturnbackthearmy1907 All german manufacturing used manufacturing machinery made in the US. Same for the British. Neither the Germans nor the UK at the time could match the level of quality of machining and machinery the US was producing in the 1930s and 1940s. And so they were all buying their mills, lathes and such from the US to manufacture their aircraft, tanks, engines, etc.
The US was so good, they even improved the RR Merlin engines when produced under license by Packard. They tweaked things in the design to make them even higher quality and better for manufacturing.
The US had such high tolerances on some of it's radial engines, they didn't even use seals or gaskets to keep the oil in.
The Germans struggled before and during the war to match teh US and UK engine cooling technology. the UK an US could produce high pressure radiators to cool their engines. By operating at higher pressures they could use smaller radiators to cool their engines more efficiently, reducing weight and drag. The Germans struggled to achieve similar, and there attempts led to the radiator pipes expanding like balloons under pressure, blocking all air flow and preventing cooling. This prevented the German engines from achieving even higher performance numbers than they did.
The US could mass produce tanks, aircraft, ships, and weapons on a speed and scale no one else could match, all while achieving higher performance and reliability and serviceability than the Germans could do.
Yes, some parts were cast, and other parts machined, and other parts stamped, and other forged, etc. You can't single out one example vehicle and make a basis for judging everything else. The US were welding all sorts of things, bolting other things, etc. Engine parts are still cast today, as are other parts. it just depends upon the design, requirements, and cost effectiveness and speed of production.
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@Revegineer the X-43 had a mere 10 seconds of fuel. not enough to do much of consequence. And you can't dodge well while going fast, as your turn rate is terrible. you could maybe give it a burst of speed just before the missile impacts. but that will only work once or twice. after that you're out of fuel.
"Form what I understand hypersonic, in terms of military use, is a missile that is initially launched in arc to the target, with the ability to travel a Mach 5. "
no, hypersonic applies ONLY to Mach 5+ speeds. it has Nothing to do with trajectory nor flight path. it's a speed category, nothing more. but once your launch booster and any internal fuel is expended, you start slowing down, and you're well below Mach 5, miles before reaching the target, due to thicker air near the surface. the drag is very high down low. Some modern jet fighters can't even go supersonic at sea level. A jet that can go mach 2-2.5 might only be able to manage mach 1.3 at sea level. the air is just too thick and the drag too high.
so if you're below mach 5 miles from the target, and coming it from 50kft let's say, teh target warship will detect it coming tens of miles out and engage. And many conventional missiles can easily exceed mach 3, yet the ship's defenses can engage them. And other existing subsonic cruise missiles already have the ability to dodge defenses as well.
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