I always wonder why rockets are millions of dollars each, that seems insane to me.
replyPart of it is the sophistication. Take the Tomahawk: assumed range of ~1000 miles , estimated accuracy of 30 feet. Can launch from above or below water. Etc.
replyThe other part is the limited production runs. Until last month, the DoD was generally purchasing ~100 of these annually. There's no scale economy in making these, so those 100 missiles need to support the entire production & R&D of the product.
It's worth reading up on the history of the Sidewinder development for the other side of this coin. Radically cheaper than the conventionally-developed alternatives at the time. It's grown legs in more recent marks but the first few variants were really not sophisticated at all.
replyI imagine part of it is also zero acceptance for failed launches. It needs to always work
replyMissiles definitely do not always work. I have seen film of a Sea Slug missile (with war head) falling over the side of a Royal Navy ship, without the motor firing properly. Apparently there was a void in the solid propellant.
replyCheck out Joe Barnard's youtube channel BPS.Space where he's documenting his development of "high power" (hobby) rockets. Those are relatively small rockets still but nonetheless he's getting into performance regimes where the engineering starts to be tricky and the details really matter. The more extreme your rocket gets, the difficulty really ramps up quick.
replyIt’s not a complete explanation, but I was awed by the precision of the shower screens used in modern rocket engines. In the 60s it might have sufficed to just spray fuel into the combustion chamber using some nozzles, but now we have highly precise matrices of micro-perforations that maximize combustion.
replyAlso if you want to harden the rocket against EMP attacks you need an inertial guidance system, and those things also demand extreme precision.
It really depends on what kind of rocket you’re talking about. An unguided rocket propelled grenade mass produced with 1960s technology is a few hundred bucks. Stepping up to a simple TOW guided missile using 1970s technology quickly ramps that price up to $5-10k per round with a max range of 3-5km.
replyOnce you add in modern electronics and guidance and reliability that cost quickly skyrockets, going up an order of magnitude at each step of complexity (advanced guided like the Javelin, cruise, ballistic, etc).
Fireworks rocket do not cost as much. But if you want high precision and high speed, that simply is expensive. Also the area is of course restricted making it more expensive as most states do not want DIY rockets everywhere.
replyThey arent. Missiles cost millions. Rockets are cheap. Rockets are unguided. Missiles are guided. From a military perspective, spacelaunch rockets are techically "unguided" as they are not tracking a target but trying to stick to a fixed/programed trajectory. It is the seeker head that costs the millions, all the jamming/counter-jamming tech that drives up development costs.
replyThis is a rather basic (passive) seeker head by modern standards.
https://en.wikipedia.org/wiki/File:R-27_missile_homing_head,...
