I saw a post just now, and (out of respect) I will keep the poster anonymous.
This is a great post. However, none of it applies to future #CTPcraft or CTP Propulsion Systems. When it comes to the #CTPSpace design book - everything about rocketry (even physics as we know it) - goes out the window.
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"What does a space rocket cost?
This is a generic, common-sized breakdown, based on a 2-stage rocket.
This recurring cost is crucial for the business case. Many people think the initial R&D costs are important as well, but one of the secrets of the launch business, esp. for #newspace companies, is that the cost of the initial R&D is almost irrelevant.
Focusing on these per-launch costs, it can be readily seen that half the cost goes into Propulsion systems.
Propulsion is the most complex mechanical system on board & that may be why it's also the system most likely to cause a mission failure (see one of my previous posts). It includes the main engine thrust chamber assemblies, turbo pump assemblies, ignition systems, as well as the fluid networks and valves required to feed the engines with fuels. This area also includes the cold gas thruster system used for attitude control in space, AKA the Reaction Control System (RCS)."
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Future #CTPcraft use NONE of these.
"The next highest costs comes from 3 areas: Mechanisms, Structures & Avionics, each accounting for around 15% of the total cost.
Structures include the outer skin of the vehicle, the payload fairing, interstages, & main tanks that hold fuels, oxidizers & pressurants. This area also includes smaller, hidden elements such as a payload platform, avionics bay, engine support structures & numerous other small components.
Avionics include the main - typically redundant - flight computers, communications systems (internal as well as radios for telemetry, command and control), engine control units (ECUs) and various expensive sensors for guidance and navigation such as gyroscopes, inertial measurement units (IMUs), special GPS systems etc."
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Future #CTPcraft use NONE of these (spare having an outer hull)
"Mechanisms are used to make things happen, such as stage separation, fairing separation, thrust vector actuation, hold-down and release mechanisms, quick disconnects and so on.
The lowest cost on the vehicle is the Software, at least on a recurring basis, because the software, once built, only needs to be "missionized" for each mission. So while the cost of writing it might be high in the R&D phase, the cost of adding customized executable files to the onboard computers is ca. 5% of the mission cost."
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Future #CTPcraft use NONE of these.
Lost yet? Most aerospace engineers would be. Because the principles on which #CTPcraft are based on are that different than anything presently in use today.
#newscience #propulsion #newpropulsion #exoticpropulsion #spacetech #CTP
Research Scientist - PhD I Bioanalytical chemistry
2moI asked ChatGPT my skeptical question about UFO "The perception that UFO sightings and related evidence are primarily concentrated in the United States may be influenced by several factors: The modern era of UFO sightings and investigations gained momentum in the mid-20th century, particularly in the aftermath of World War II and during the Cold War era. The United States played a central role in UFO research and investigation during this period, with the establishment of organizations such as Project Blue Book by the U.S. Air Force. This historical context may contribute to the perception that UFO phenomena are primarily associated with the United States. The United States has a significant cultural influence globally, including in the realm of popular media and entertainment. UFO-related stories, movies, television shows, and documentaries produced in the United States often receive widespread attention and dissemination worldwide. As a result, UFO sightings and encounters reported in the United States may be more widely publicized and perceived as representative of the global phenomenon." I couldn't copy the whole answer but it seems that I am conditioned (culturally), but I can assure you that I am genuinely curious!