Comparison of Return to Launch Site Options for a Reusable
... If the booster is unpowered after staging, then there is a limit as to how high the staging can occur so the booster will have enough margin to return and land safely. If the booster uses airbreathing engines, hardware for those engines needs to be added along with another fuel tank thereby increasi ...
... If the booster is unpowered after staging, then there is a limit as to how high the staging can occur so the booster will have enough margin to return and land safely. If the booster uses airbreathing engines, hardware for those engines needs to be added along with another fuel tank thereby increasi ...
Electric Propulsion
... ΔVideal performance = Isp g ln[mi/(mi - mp)] is the basic relationship between ΔV (performance) and Isp for a single stage propulsion system. This is not the same as the ΔV required to attain proper orbit, or for orbit changes. This equation allows us to calculate the initial-to-final mass ratio for ...
... ΔVideal performance = Isp g ln[mi/(mi - mp)] is the basic relationship between ΔV (performance) and Isp for a single stage propulsion system. This is not the same as the ΔV required to attain proper orbit, or for orbit changes. This equation allows us to calculate the initial-to-final mass ratio for ...
Validating a Novel Theoretical Expression for Burn time and
... derive a novel analytical expression for burn time and average thrust as a function of grain length and web thickness and compare experimental results from a static test bed with that of the analytically formulation. Here, a Sugar propellant (SP), sorbitol (C6H14O6) consisting of an oxidizer, potass ...
... derive a novel analytical expression for burn time and average thrust as a function of grain length and web thickness and compare experimental results from a static test bed with that of the analytically formulation. Here, a Sugar propellant (SP), sorbitol (C6H14O6) consisting of an oxidizer, potass ...
The Aerodynamic Forces code grew steadily over the course of the
... Figure A.1.2.3.5.1 shows that the center of pressure will move aft along the rocket body as angle of attack changes, which is what we expect for a launch vehicle.3 We have some issues with the validity of the results however. We found that the CP values being output by the code tend to begin lower a ...
... Figure A.1.2.3.5.1 shows that the center of pressure will move aft along the rocket body as angle of attack changes, which is what we expect for a launch vehicle.3 We have some issues with the validity of the results however. We found that the CP values being output by the code tend to begin lower a ...
Article: - Swift - Sonoma State University
... Objectives: Students will… See and experiment with a system that moves due to equal and opposite actions and reactions. See that a force is necessary to start something moving when it is at rest, or to change its motion from one speed or direction to another. Procedure: (You should read the inst ...
... Objectives: Students will… See and experiment with a system that moves due to equal and opposite actions and reactions. See that a force is necessary to start something moving when it is at rest, or to change its motion from one speed or direction to another. Procedure: (You should read the inst ...
The three toed sloth is the slowest moving land mamal on the
... ground, it moves with a velocity of 0.037 ms-1 , considerably slower than the giant tortoise which walks at 0.076 ms-1. If they both set off at the same time what is their separation after 12 mins of walking ? 2) A particle has a initial velocity of + 112 ms-1 at t = 0, it has no acceleration until ...
... ground, it moves with a velocity of 0.037 ms-1 , considerably slower than the giant tortoise which walks at 0.076 ms-1. If they both set off at the same time what is their separation after 12 mins of walking ? 2) A particle has a initial velocity of + 112 ms-1 at t = 0, it has no acceleration until ...
Document
... propellant through electro(magnetic) fields • There is no intrinsic limitation (other than the relativistic one) to the speed to which the propellant can be accelerated • Energy available on board is the only practical limitation ...
... propellant through electro(magnetic) fields • There is no intrinsic limitation (other than the relativistic one) to the speed to which the propellant can be accelerated • Energy available on board is the only practical limitation ...
Introduction to Electric Propulsion
... NASA has awarded Electron Energy Corp. (EEC) a one-year, $94,400 Small Business Technology Transfer Research contract to study effects of high temperatures and radiation of space on physical and magnetic properties of samariumcobalt (SmCo), and potential improvement of thermal stability in a vacuum ...
... NASA has awarded Electron Energy Corp. (EEC) a one-year, $94,400 Small Business Technology Transfer Research contract to study effects of high temperatures and radiation of space on physical and magnetic properties of samariumcobalt (SmCo), and potential improvement of thermal stability in a vacuum ...
T 1" (25.4 mm) Travel Motorized Translation Stages
... The PT1-Z8 and the PT3-Z8 motorized stages provide a 1" (25.4 mm) total travel range for each axis. The PT3-Z8 is assembled from three single axis stages using the PT102 (/M) bracket. Each stage comes with two mounting dowels to ensure orthogonality when stacking multiple stages. The motorized actua ...
... The PT1-Z8 and the PT3-Z8 motorized stages provide a 1" (25.4 mm) total travel range for each axis. The PT3-Z8 is assembled from three single axis stages using the PT102 (/M) bracket. Each stage comes with two mounting dowels to ensure orthogonality when stacking multiple stages. The motorized actua ...
chapter 8
... The liquid propellants are classified according to the number of chemicals needed for the reaction. A monopropellant, such as hydrazine, is a single chemical that can decompose without another chemical to react with it. Hydrazine generates ammonia, hydrogen and nitrogen gases that go out the nozzle ...
... The liquid propellants are classified according to the number of chemicals needed for the reaction. A monopropellant, such as hydrazine, is a single chemical that can decompose without another chemical to react with it. Hydrazine generates ammonia, hydrogen and nitrogen gases that go out the nozzle ...
Presentation - Harlem Children Society
... • High Propulsion Power (rivals the power of liquid fuel rockets) • Burns more efficiently than solid fuel rockets • Can be refueled • Low relative cost and weight compared to Liquid Rockets • Easily throttled • Environmentally safe • Storable and reliable ...
... • High Propulsion Power (rivals the power of liquid fuel rockets) • Burns more efficiently than solid fuel rockets • Can be refueled • Low relative cost and weight compared to Liquid Rockets • Easily throttled • Environmentally safe • Storable and reliable ...
2015-02-19-Chapter-8 - Help-A-Bull
... • The sum of all of the forces, internal and external is equal to the mass times acceleration. • By Newton’s third law, for each internal force, there is an equal but opposite reaction force, so the internal forces cancel out. ...
... • The sum of all of the forces, internal and external is equal to the mass times acceleration. • By Newton’s third law, for each internal force, there is an equal but opposite reaction force, so the internal forces cancel out. ...
Conservation Equations - Florida Institute of Technology
... External forces, for example reaction force on an engine test stand Application of a set of forces to a control volume has two possible consequences 1. Changing the total momentum instantaneously contained within the control volume, and/or 2. Changing the net flow rate of momentum leaving the contro ...
... External forces, for example reaction force on an engine test stand Application of a set of forces to a control volume has two possible consequences 1. Changing the total momentum instantaneously contained within the control volume, and/or 2. Changing the net flow rate of momentum leaving the contro ...
Multistage rocket
A multistage (or multi-stage) rocket is a rocket that usestwo or more stages, each of which contains its own engines and propellant. A tandem or serial stage is mounted on top of another stage; a parallel stage is attached alongside another stage. The result is effectively two or more rockets stacked on top of or attached next to each other. Taken together these are sometimes called a launch vehicle. Two-stage rockets are quite common, but rockets with as many as five separate stages have been successfully launched.By jettisoning stages when they run out of propellant, the mass of the remaining rocket is decreased. This staging allows the thrust of the remaining stages to more easily accelerate the rocket to its final speed and height.In serial or tandem staging schemes, the first stage is at the bottom and is usually the largest, the second stage and subsequent upper stages are above it, usually decreasing in size. In parallel staging schemes solid or liquid rocket boosters are used to assist with lift-off. These are sometimes referred to as 'stage 0'. In the typical case, the first-stage and booster engines fire to propel the entire rocket upwards. When the boosters run out of fuel, they are detached from the rest of the rocket (usually with some kind of small explosive charge) and fall away. The first stage then burns to completion and falls off. This leaves a smaller rocket, with the second stage on the bottom, which then fires. Known in rocketry circles as staging, this process is repeated until the final stage's motor burns to completion.In some cases with serial staging, the upper stage ignites before the separation- the interstage ring is designed with this in mind, and the thrust is used to help positively separate the two vehicles.