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📚 CARE4Space.IT Rocketry STEM Glossary and Acronyms

Glossary site content index and glossary of 100+ terms. Clicking on every single term will show the definition and all the articles with that term. Topics are organised in alphabetical order to be easily retrieved.

The number near the term represents the number of occurrences of each term in a different article. Term with zero if clicked will give you zero result. Please suggest more terms to implement or content to edit.

A B C D E F G H I J K L M N O P R S T U V W 3

A

  • AA (0)Actual Apogee
  • ABS (1)Acrylonitrile butadiene styrene is a common thermoplastic polymer used in 3D Printing and in Rocketry as fuel in Hybrid engine
  • Acceleration (2)Increase in speed or velocity, a change in velocity
  • ACS (0)Attitude Control System
  • Action (1)A force (push or pull) acting on an object. See Reaction.
  • Active controls (0)Devices on a rocket that move to control the rocket’s direction in flight.
  • Aerospace (4)
  • Agile (6)
  • AGL (0)Above Ground Level
  • AI (1)
  • AIAA (0)American Institute of Aeronautics and Astronautics
  • Airfoil (0)A streamlined shape given to fins or wings for maximum aerodynamic efficiency in flight
  • Altitude (4)Extent or distance upward, height
  • ANAC (0)Portugal's National Civil Aviation Authority
  • APCP (0)Ammonium Perchlorate Composite Propellant
  • Apogee (3)The highest point of a rocket’s flight path.
  • APRS (0)Automatic Packet Reporting System
  • Arduino (2)
  • Attitude control rockets (0)Small rockets that are used as active controls to change the attitude (direction) a rocket or spacecraft is facing in outer space.
  • Avionics (0)🛫Avionics

B

C

  • CAD (4)Computer-Aided Design
  • CAE (0)Computer-Aided Engineering
  • CAM (0)Computer-Aided Manufacturing
  • Campetition (1)
  • Canards (0)Small movable fins located towards the nose cone of a rocket.
  • CanSAT (1)
  • Case (0)The body of a solid propellant rocket that holds the propellant.
  • CDR (0)Critical Design Review
  • Centre of mass (CM) (0)The point in an object about which the object’s mass is centred.
  • Centre of pressure (CP) (1)The point in an object about which the object’s surface area is centred.
  • CFR (0)Code of Federal Regulations
  • Checklist (1)Checklist
  • chemistry (1)
  • CNC (1)Computer Numerical Control machines
  • Combustion chamber (0)A cavity inside a rocket where propellants burn.
  • CONOPS (0)Concept of Operations
  • Copywriting (1)
  • COTS (2)Commercial off-the-shelf
  • Courses (1)
  • CubeSAT (1)A CubeSat is a class of miniaturized satellite-based around a form factor consisting of 10 cm (3.9 in) cubes. CubeSats have a mass of no more than 2 kg (4.4 lb) per unit, and often use commercial off-the-shelf (COTS) components for their electronics and structure.

D

  • DIY (1)
  • Drag (0)Friction forces in the atmosphere that drag on a rocket to slow its flight.
  • DTEG (0)Design, Test and Evaluation Guide

E

F

  • FAA (0)USA Federal Aviation Administration
  • FDR (0)Focused Design Review
  • Fins (1)Arrow-like wings at the lower end of a rocket that stabilise the rocket in flight.
  • Friction (0)The interaction of the surface of one body against that of another causes a slowing of motion.
  • FRR (0)Flight Readiness Review
  • Fuel (2)The chemical that combines with an oxidizer to burn and produce thrust.
  • Fundraising (2)
  • Fusion360 (2)

G

H

  • H (1)🕯️Hybrid engine
  • HAR (1)
  • HPR (0)High Power Rocket

I

  • Igniter (0)A device that ignites a rocket's engine(s)
  • Injectors (0)Showerhead-like devices that spray fuel and oxidizer into the combustion chamber of a liquid-propellant rocket.
  • Insulation (0)A coating that protects the case and nozzle of a rocket from intense heat.
  • IoT (1)The Internet of Things (IoT) describes physical objects (or groups of such objects) with sensors, processing ability, software, and other technologies that connect and exchange data with other devices and systems over the Internet or other communications networksIoT
  • IREC (0)Intercollegiate Rocket Engineering Competition
  • ITAR (0)International Traffic in Arms Regulations

J

K

L

M

  • Mass (0)The amount of matter contained within an object.
  • Mass fraction (MF) (0)The mass of propellants in a rocket divided by the rocket’s total mass.
  • Microgravity (1)An environment that imparts to an object a net acceleration that is small compared to that produced by Earth at its surface.
  • Motion (0)Movement of an object in relation to its surroundings.
  • Movable fins (0)Rocket fins that can move to stabilise a rocket’s flight.

N

  • NAR (0)USA National Association of Rocketry
  • NASA (1)National Aeronautics and Space Administration All topics A-Z https://www.nasa.gov/topics/
  • Newton’s First Law of Motion (0)A body remains at rest or in motion with a constant velocity unless acted upon by an external force.
  • Newton’s Second Law of Motion (0)A force on an object will cause the object to accelerate in the direction of the force. The object will accelerate directly proportional to the force and inversely proportional to the mass of the object. Force = Mass × Acceleration.
  • Newton’s Third Law of Motion (0)For every action, there is an equal and opposite reaction.
  • NMSA (0)New Mexico Spaceport Authority; aka Spaceport America
  • Nose cone (0)The cone-shaped front end of a rocket.
  • Nozzle (1)A bell-shaped opening at the lower end of a rocket through which a stream of hot gases is directed.

O

  • OML (0)Outer Mold Line
  • OpenRocket (6)💻 OpenRocket Simulator
  • Oxidizer (0)A chemical containing oxygen compounds that permit rocket fuel to burn both in the atmosphere and in the vacuum of space.

P

  • Passive Controls (0)Stationary devices, such as fixed rocket fins, that stabilise a rocket in flight.
  • Payload (4)The cargo (scientific instruments, satellites, spacecraft, etc.) carried by a rocket.
  • PCB (1)Printed circuit board
  • PII (0)Personally Identifiable Information
  • PLA (2)Polylactic acid is a thermoplastic polyester used in 3D Printing. PLA has become a popular material due to it being economically produced from renewable resources. Its widespread application has been hindered by numerous physical and processing shortcomings. PLA is the most widely used plastic filament material in 3D printing. Its low melting point, high strength, low thermal expansion, good layer adhesion, and high heat resistance when annealed make it an ideal material for this purpose.
  • PLR (0)Post Launch Review Activity
  • PocketSAT (1)
  • PR (1)Public Relations
  • Propellant (0)A mixture of fuel and oxidizer that burns to produce rocket thrust.
  • Propulsion (3)
  • Pumps (0)Machinery that moves liquid fuel and oxidizer to the combustion chamber of a rocket.

R

S

T

  • TA (0)Target Apogee
  • TBC (0)To be confirmed
  • TBD (0)To be determined or defined
  • TBR (0)To be resolved
  • TEB (0)Technical Evaluation Board
  • Telemetry (3)📡Telemetry
  • Terminal velocity (0)The constant speed obtained by a falling object when the upward drag on the object balances the downward force of gravity.
  • Throat (0)The narrow opening of a rocket nozzle.
  • Thrust (1)The force from a rocket engine that propels it.
  • TLD (0)Country-code top-level domain, the 2 letter to identify a nation
  • TRA (0)Tripoli Rocketry Association - USA
  • Training (4)

U

  • U (0)Unit, as in 🧊 CubeSat unit
  • Unbalanced force (0)A force that is not countered by another force in the opposite direction.

V

  • Velocity (1)A moving object’s speed and direction of movement.
  • Vernier rockets (0)Small rockets that use their thrust to help direct a larger rocket in flight.

W

3

  • 3D Printing (2)🧵 3D printing or additive manufacturing is the construction of a three-dimensional object from a CAD model or a digital 3D model. It can be done in a variety of processes in which material is deposited, joined or solidified under computer control, with the material being added together (such as plastics, liquids or powder grains being fused), typically layer by layer.

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