Join expert discussion on aerospace and astronautics. Technology and industry concerned with aviation, space flight and space exploration. Plane, Shuttle and Rocket design, news and concepts. SpaceX, Blue Origin and NASA space agencies.
Threads
Solving the Rocket Pendulum Fallacy?
- FlyingMonk
- · Replies 18 ·
Is Specific impulse indicative of performance as a gun propellant?
- Christofer Br
- · Replies 1 ·
Can a CO2 torpedo achieve 0.25N thrust with A/A* = 4?
- Julez55
- · Replies 7 ·
How to model a rocket equation from the derivative of momentum?
- Physyx
- · Replies 4 ·
Could We Monitor Weather on All Planets with Current Space Budget?
- PicnicDoctor
- · Replies 5 ·
Hydrofoil lift calculator verification at 20 m/s with 1:1 aspect ratio
- urbsurfer
- · Replies 3 ·
Do surfaces ahead of propellers decrease thrust?
- leviterande
- · Replies 9 ·
SpaceX Supersonic electric propulsion systems for airliners
- Xforce
- · Replies 7 ·
Project Orion-Like Space Vehicle
- Xforce
- · Replies 3 ·
A Flying Hoverboard that I want to replicate
- kpuding
- · Replies 9 ·
SpaceX SpaceX Starship and Super Heavy development: Mk1 prototype and 20 km test
- mfb
- · Replies 30 ·
Can Particle Beams Effectively Vaporize Dangerous Asteroids?
- GTOM
- · Replies 6 ·
Fusion aerospace propulsion systems for the near future
- Xforce
- · Replies 23 ·
Aeroplane wing structure -- airflow question
- Frigus
- · Replies 10 ·
Which of these methods of propulsion is “best” for future spaceflight?
- Maximum7
- · Replies 4 ·
Can Ion Thrusters with Continuous Iron Expulsion Power Interplanetary Probes?
- philip porhammer
- · Replies 6 ·
Weird nuclear propulsion concept
- hagopbul
- · Replies 3 ·
NASA What would happen if the Mars 2020 rover found life?
- new6ton
- · Replies 8 ·
NASA Which of these methods is the best bet for space propulsion?
- Maximum7
- · Replies 1 ·
Could an Electrostatic Lift Vehicle Transfer the Earth's Atmosphere to the Moon?
- x_engineer
- · Replies 6 ·
Are CRTs Suitable for Use in Ion Thrusters?
- RamSkull
- · Replies 4 ·
SpaceX More details about next-gen 18m SpaceX launch vehicle
- Xforce
- · Replies 2 ·
Is black-hole propulsion really feasible?
- swampwiz
- · Replies 3 ·
The 5 closest potentially habitable exoplanets
- alberto91
- · Replies 2 ·
What factors affect a golf ball's drag and lift besides spin and speed?
- Boyi
- · Replies 2 ·
Why Is Space Travel More Complex Than It Seems?
- Z0dCHiY8
- · Replies 17 ·
Braking spacecraft in a snow-filled tank?
- trurle
- · Replies 7 ·
Boeing How Does the Boeing 777 Main Gear Oleo Strut Work and How Is EPR Calculated?
- stan19
- · Replies 1 ·
How Should We Prepare for Potential Asteroid Collisions?
- dsaun777
- · Replies 2 ·
Analysis of Hubbed Axial Flow Fan
- aeronautical
- · Replies 1 ·
Choice of computing platform for guidance system
- eichfeld
- · Replies 1 ·
Is My Calculation of Rocket Exhaust Velocity Using N2H4 and Aerozine 50 Correct?
- .:Endeavour:.
- · Replies 1 ·
Vertical Axis Wind Turbine Power Estimation
- Thusithatck
- · Replies 1 ·
Difference between gyroscope angular displacement and Euler angles
- ZekDe
- · Replies 4 ·
What are the likely first forms of relativistic spacecraft propulsion?
- greswd
- · Replies 23 ·
Yaw, pitch and roll vs. azimuth and elevation
- senmeis
- · Replies 16 ·
Power required to compress air in a gas turbine
- Jeremy Ardley
- · Replies 23 ·
Two basic questions about satellite communication
- senmeis
- · Replies 2 ·
Aspect ratio used in induced drag and lift calculations
- MaxKang
- · Replies 6 ·
Application point of the lift force and pitching moment
- fog37
- · Replies 7 ·
SpaceX Anomaly during Crew Dragon test
- mfb
- · Replies 12 ·
Air Cannon Air Speed Calculations
- BriggsFz
- · Replies 1 ·
Kerbal Space Program - Rocket Design Basics
- collinsmark
- · Replies 2 ·
SpaceX Starlink launch - first 60 satellites
- mfb
- · Replies 14 ·
Ka vs. Ku communication satellites
- senmeis
- · Replies 3 ·
NASA Is a VTOL Electric Aircraft Feasible for Titan Exploration?
- mfb
- · Replies 12 ·
Are orbital sun shades to reverse climate change realistic?
- arusse02
- · Replies 8 ·
Ideas about centrifugal space colony habitats on high-gravity planets
- greswd
- · Replies 5 ·
Could beta(-) emitters be used to build a compact light-space-drive?
- consuli
- · Replies 16 ·
Hypothetical Movement of Unidentified Aircraft
- nytmr24
- · Replies 3 ·
Remarkable New Marine Propulsion Systems
- anorlunda
- · Replies 5 ·
NASA NASA aluminum fraud scheme probe
- nsaspook
- · Replies 8 ·
Why couldn't the space shuttle slow down in space?
- zuz
- · Replies 36 ·
Could wing height position (through changing pitch) affect propeller airflow?
- WrathofAtlantis
- · Replies 10 ·
Satellite internet constellations
- mfb
- · Replies 6 ·
Boeing What's happening to Boeing's production?
- Roberto Teso
- · Replies 26 ·
6th International Academy of Astronautic Conference, Livestreamed
- gleem
- · Replies 2 ·
Estimating a parameter for airfoil drag prediction in 2D potential flow
- lordvon
- · Replies 8 ·
NASA NASA Captures First Air-to-Air Images of Supersonic Shockwave
- Spinnor
- · Replies 9 ·
Rocket debris thrown into Space
- happyhacker
- · Replies 1 ·
AN Standard 37 degree taper fitting
- Edward Camic
- · Replies 3 ·
Simple lift/drag measurements in a wind tunnel
- 09matthew
- · Replies 5 ·
NASA Today is NASA's Day of Rememberance
- BillTre
- · Replies 2 ·
Would an astronaut be able to get back to the space station?
- Doug Gantt
- · Replies 14 ·
Secondary Mirror in Solar Concentrator Dish Designs
- vladpaln
- · Replies 6 ·
Engine Type/Configuration and Aircraft Performance
- Delta Force
- · Replies 5 ·
Airplane Landing Questions -- How can the pilot see the ground?
- seazal
- · Replies 156 ·
How many O-rings would a mechanical engineer use here?
- Roy S Ramirez
- · Replies 7 ·
How Many Sensors Does a Typical Rocket Have?
- senmeis
- · Replies 10 ·
Coal consumption and crew requirements in Royal Navy steam warships 1892–1913
- diogenesNY
- · Replies 12 ·
Recharge satellite batteries utilizing a ground-based laser?
- Scott Ryals
- · Replies 6 ·
Shape-changing dirigible electrical generation/transmission
- Donald Yanzick
- · Replies 13 ·
Could tethered balloons deliver stratospheric aerosols via a carbon fiber pipe?
- Spinnor
- · Replies 22 ·
How is fuel pumped in fighter aircrafts? (F-16 etc.)
- mastermechanic
- · Replies 11 ·
Creating Reaction Mass with Electron-Positron Pair Production for Rocket Thrust
- metastable
- · Replies 5 ·
Boeing Lion Air 737 Max: Did faulty AOA sensor crash the plane against pilot control?
- russ_watters
- · Replies 28 ·
How does ion aircraft propulsion work?
- artis
- · Replies 15 ·
NASA NASA asteroid collision warning?
- jim mcnamara
- · Replies 0 ·
Airfoil drag prediction in incompressible and inviscid flow
- lordvon
- · Replies 2 ·
NASA NASA's spacewalks, on the ISS, Jan 6 and Jan 13
- Stavros Kiri
- · Replies 10 ·
Why are rockets tethered before takeoff
- Sami1999
- · Replies 8 ·
Ferris wheel Business process reengineering
- prashantakerkar
- · Replies 1 ·
Inertial loads -- Sources of information needed
- giovanna Centenaro
- · Replies 1 ·
Central "through" crack with a concentrated load
- kajalschopra
- · Replies 4 ·
How to Calculate the Speed of a Sprocket?
- Ballena Joseph
- · Replies 8 ·
NASA NASA Challenge - CO2 Conversion
- Tom.G
- · Replies 5 ·
How much air flow is required for lifting a wing?
- bob012345
- · Replies 15 ·
Are astronauts allowed to have tattoos on their body?
- quantknight
- · Replies 3 ·
NASA NASA Parker Solar spacecraft question
- Andreza Carvalho
- · Replies 4 ·
Exact constraint in practice -- Pinned joint with 2 DOF
- jasc15
- · Replies 5 ·
Injector pressure drop in a liquid rocket engine
- Roy S Ramirez
- · Replies 1 ·
Pressure drop necessary to have desired gas flow rate
- Manganese
- · Replies 8 ·
Can a Vertical Lift Engine Hover With 30 Pounds?
- bob012345
- · Replies 51 ·
NASA Contoversy about NASA's Asteroid Tracking
- BillTre
- · Replies 19 ·
Ek vs engine power in cars and space
- vysqn
- · Replies 8 ·
Is it possible to be both an astronaut and astrophysicist?
- riley4190
- · Replies 9 ·
Steering rockets in space by shifting CM
- RubinLicht
- · Replies 3 ·
Can centripetal force recover energy in spacecraft?
- Jerry Walz
- · Replies 9 ·
NASA Ars Technica: Pew research indicates other NASA priorities
- jim mcnamara
- · Replies 4 ·
NASA Calculating Super Accurate Ephemerides: NASA's Method
- xaratustra
- · Replies 1 ·