How effective are spaceflight developments in aiding humanity’s travel into and across space? Harry Hicks
Why did I pick this topic? Links to a potential future career in aerospace, and my university aspirational course Personal interests Interesting technological developments
What I learnt while doing my EPQ? Research skills Project and time management Communication skills Subject-specific knowledge Self-reflection
What is spaceflight technology? Orbital launch vs deep space propulsion Karman line, ≈100km above sea level Each technology is unique, yet can be compared
Orbital launch - Chemical propulsion How does it work? Spaceplanes
Orbital launch - Chemical propulsion How does it work? Spaceplanes
Orbital launch - Spinlaunch How it works (kinetic rotational launch, with assistance of fuel)
TETHER ELECTRIC MOTOR DRIVE VACUUM CHAMBER LAUNCH VEHICLE LAUNCH TUNNEL VEHICLE RELEASE TETHER VEHCILE LAUNCH SYSTEM
Orbital launch – comparison Reusability Lower cost at 4x fuel decrease Newer technology Relies on launcher angle Environmental considerations Numerous launches a day Modularity for variety of missions High fuel costs – propellant/mass for solid fuel = 93%, liquid fuel = 77% Maturity of technology (1957 -> present) New developments in reusability Single use -> reusability, developing Reusability Numerous launches Launcher angle Lower cost Newer technology Environmental impact Modularity Fuel cost Technology maturity Newer reusability Environmental impact Spinlaunch Chemical propulsion
Deep space propulsion – Solar sails How it works (kinetic rotational launch, with assistance of fuel)
Deep space propulsion – Ion thrusters How it works
Deep space propulsion – comparison Efficient for long-distance space missions. High specific impulse. Suitable for deep space exploration. Low thrust and acceleration. Complex engineering and power requirements. Higher initial cost. No need for fuel. Continuous, sustained thrust. Simple design for certain applications. Lower specific impulse than ion thrusters. Dependence on sunlight. Limited effectiveness in inner solar system. Vulnerability to damage due to large, delicate structures. Long-range efficiency Specific impulse shift T hrust + acceleration Power requirements Complex engineering High initial cost No need fo r fuel Constant low thrust Simple design Sunlight dependence Inner system limit Vulnerability Ion thrusters Solar sails
Psychological and physiological effects Muscles and bones Radiat ion Basic human needs Cardiovascular Claustrophobia Long mission time
What could I improve? Been more efficiently in my choice of topics to allow for more investigation Analyse sources while written Find more modern sources Understand scientific language better