Comments by "Tony Wilson" (@tonywilson4713) on "Ask Peter Zeihan: Will Hypersonics Replace the Need for an Army?" video.

  1. AEROSPACE ENGINEER HERE: Simple answer - NO, Peter's quite right that hypersonics are NOT replacing anything. They'll just be another weapon in the inventory. Longer answers below based on Peter's 3 main points. 1) Hypersonics are expensive: The Americans have flown a number of hypersonic vehicles deployed from jets at altitude. The X-43 flew twice at a cost of $230,000,000 or $115 million each. The X-51 flew 4 times for around $85 million each. When you look at what it took to get the SR-71 to fly at Mach 3.3 people think going over Mach 5 is just a matter of more bang. The reason the F-22 was so expensive to operate was because whenever it went fast it would burn the radar absorbent paint off. Going that fast is hard and its expensive. If it was easy and cheap we'd all be flying around in 2nd or 3rd generation Concordes. 2) Speed, fuel, payload: First to go twice as fast you need 4 times the energy before you even consider drag. Its called kinetic energy. So just going from Mach 1 to Mach 5 requires 25 times the energy. Go and look at the X-43 and look at how big the booster was just to get the X-43 model up to a speed where its SCRAM jet could start working. So yes Peter is very very right when he say s they need a lot of fuel and therefore have very small warheads. But they do arrive with a lot of kinetic energy and that does enhance the effectiveness especially when it had to penetrate things like several meters of reinforced concrete. 3) Air defense: One of the great myths about hypersonic missiles being promoted by idiots in the media and snakes in the military industrial complex who want nice juicy contracts is that hypersonic missiles are manoeuvrable. They are NOT that manoeuvrable as the pretty graphics like to show. At those speeds things go very straight and at best make some adjustments. A such they were always going to be vulnerable to systems that could detect them early enough. Back in WW2 flak shells weren't so much meant to hit planes they were meant to blast in front of the planes and then let the planes fly into the wall of shrapnel. If you look up the modern CIWS (see-wiz) systems they create a wall of metal for the missile to fly through. Go and look up how the Rheinmetall GDM-008 Millennium Gun and the Advanced Hit Efficiency And Destruction (AHEAD) ammunition air burst ammunition it fires works. There's videos here on YT showing it. Kh-47M2 Kinzhal was always going to be vulnerable to that method of defense if it could detect the Kinzhal early enough, which clearly the patriot can. ON AI selecting targets. This entire narrative of AI being actually think and reason is utter nonsense. AIs are just complex software algorithms that can mimic what a person can do but very fast especially when the task is data analysis or the task can be done as a data analysis task. If they can't get a car to drive down a street and NOT kill people crossing the street then they are nowhere near as the hype suggests. Go and see the reports on how many people the AI in Teslas have killed. PUT IT THIS WAY does anyone want weapons with software written by overrated clowns like the ones who did the software in the Boeing Max-8 that just decided to fly the planes into the ground. These are things are actually designed to strike and kill targets. I write real time software for industrial systems as a control system and automation engineer. I write software that reads information in real time from sensors and makes decisions based on that information. Sensors aren't perfect and they can give spurious data. that's what happened with the Max-8 and look what happened when their software didn't detect the anomaly. Most software people from outside my corner of the software world have NEVER DONE that type of software AND ITS DAMN HARD at times. Most who try to do it either take the easier jobs or they do something else. if the Tesla deaths, Boeing Max-8 and other accidents aren't enough to convince people that this stuff is very hard to do and very easy to get wrong then nothing ever will.
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  9.  @dylanthomas12321  Please STOP believing the crap and nonsense you keep being told in the media. They are NOT engineers. MOST if not all of what they say is produced for them by special interests. Often its from think tanks who are funded by the military contractors who want the contracts to "do stuff." Its the portrayal of what these hypersonic gliders can do that annoys me as its so misleading and the only intent is to get some juicy contract. There's incredible amounts of money in weapons development contracts. things don't even need to work they just need to have the appearance they might work to get the development contracts. How do you think those "gliders' get to that height and get to those speeds? They're just a development of what's been available since the 1950s when the first ICBMs were made available. All those gliders are is an upgraded version of those systems. Its just told to the public as something new and fantastic. The first warheads from ICBMS were guided during the final stages of flight. They have manoeuvring but its nowhere near the ducking, dipping and weaving shown in the graphics. This notion of doing that at speeds above Mach 5 is simply nonsense. To glide you need air thick enough to glide and manoeuvre. If you have air you also have drag and at Mach 5 that means a lot of heat from air friction. the problems just mount and mount once you start going supersonic and particularly after Mach 2. Its difficult to explain how extraordinary the SR-71 really was without a series of lectures and it only went Mach 3.3. The Russians tried to match its speed with the Mig 25 and for it to go that sort of speed it wrecked the engines. It was something the Russians kept secret for many years. At full speed they threw the engines away afterwards and in some cases the entire aircraft. These guys want to go faster than Mach 5. Think of it this way. Just as lift and drag are functions of velocity squared (v²), the difficulties of supersonic flight are a function of the Mach number squared (M²). Mach 1 is hard Mach 2 is 4 times harder ... Mach 5 is 25 times harder and it just gets worse after that.
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