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- The ram accelerator, a chemically driven ramjet-in-tube device is a new option for direct launch of acceleration-insensitive payloads into earth orbit. The projectile is the centerbody of a ramjet and travels through a tube filled with a premixed fuel-oxidizer mixture.Author: David W. BogdanoffPublish Year: 1992
ntrs.nasa.gov/search.jsp?R=19920045908 Ram Accelerator - Aeronautics and Astronautics
The ram accelerator is a scalable hypervelocity launcher capable, in principle, of accelerating projectiles to velocities greater than 8 km/s (18,000 mph) and was developed in 1983 by …
See results only from aa.washington.eduGeneral FeaturesPotential applications of the ram accelerator include hypersonic aerodynamic testing (Naumann and Bruckner, 1994), and direct launch to orbit (Bruckner …Direct Space LaunchThe ideal direct space launcher would have constant acceleration. The ram accelerator has the requisite muzzle velocity (8+km/s) and scalability (up to …Direct Space Launch | Aeronautics and Astronautics
The ideal direct space launcher would have constant acceleration. The ram accelerator has the requisite muzzle velocity (8+km/s) and scalability (up to several tons) and, being a jet-engine …
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Overview - Aeronautics and Astronautics
The ram accelerator can operate at in-tube Mach numbers up to ~8, which corresponds to ~8 km/s in H2-O2 propellants, thus it has the potential to launch projectiles at orbital velocities. Proof-of-principle was first demonstrated at 38 …
Ram accelerator - Wikipedia
Ram accelerators have been proposed as a cheap method to get payloads into space. Impulsive launched projectiles need some means to circularize their trajectory for orbit insertion, so rockets, such as those designed in the 1960s in Project HARP, are typically incorporated into the projectiles. With multi-stage rocket projectiles the launch cost was estimated at US$500 per kilogram in 2004.
Wikipedia · Text under CC-BY-SA license- Estimated Reading Time: 5 mins
Ram accelerator direct space launch system - New concepts
Apr 1, 1992 · The ram accelerator, a chemically driven ramjet-in-tube device is a new option for direct launch of acceleration-insensitive payloads into earth orbit. The projectile is the …
- Author: David W. Bogdanoff
- Publish Year: 1992
Direct space launch using ram accelerator technology
Feb 1, 2001 · The ram accelerator is a hypervelocity launcher that operates on the principles of a chemically propelled in tube ramjet. This concept is unique in its potential to launch large-scale...
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Ram accelerator direct space launch system - New concepts
May 23, 2012 · Ram accelerator optimization and use of hydrogen core to increase projectile velocity
Conceptual Design of RAM Accelerator Direct Launch Systems
Utilizing the advantages of the ram accelerator, two direct launch systems are conceptually designed. One of these is a launch system to a low earth orbit and the other is a middle …
Direct space launch using ram accelerator technology
Feb 2, 2001 · The ram accelerator is a hypervelocity launcher that operates on the principles of a chemically propelled in tube ramjet. This concept is unique in its potential to launch large-scale …
ORIGINAL RAM ACCELERATOR - nss.org
The hydrogen core ram accelerator is a steel tube divided into two parts: the part near the axis is filled with hydrogen, while the outer part is filled with a mixture of fuel, oxidizer, and diluent. Ablation and premature detonation are reduced by …
The ram accelerator is a hypervelocity launcher that operates on the principles of a chemically propelled in- tube ramjet. This concept is unique in its potential to launch large-scale...
General Features | Aeronautics and Astronautics
Potential applications of the ram accelerator include hypersonic aerodynamic testing (Naumann and Bruckner, 1994), and direct launch to orbit (Bruckner and Hertzberg, 1987; Bogdanoff, …
Ram-accelerator: A new hypervelocity launcher for ballistic studies
Dec 1, 1999 · This moderate level of acceleration is required to investigate at high velocities models that are fragile because of their design and/or their onboard opto-electronical …
Ram accelerator direct launch system for space cargo
The ram accelerator, a chemically-propelled mass driver, is presented as a new approach for directly launching acceleration-insensitive pay-loads into LEO. The cargo vehicle resembles …
Direct space launch using ram accelerator technology
The ram accelerator is a hypervelocity launcher that operates on the principles of a chemically propelled in tube ramjet. This concept is unique in its potential to launch large-scale projectiles …
The ram accelerator: overview and state of the art
A new launcher technology called the ram accelerator has been under development since 1983 for applications as a scalable hypervelocity accelerator capable, in principle, of launching …
Ram accelerator direct launch system for space cargo
Nov 1, 1987 · The ram accelerator, a chemically propelled mass driver, is presented as a viable new approach for directly launching acceleration-insensitive payloads into low earth orbit.
Potential applications of the ram accelerator include hypervelocity impact studies, hypersonic propulsion research, kinetic energy weapons, and direct launch of acceleration-insensitive …
[PDF] Ram Accelerator as an Impulsive Space Launcher: …
The ram accelerator, a chemically driven ramjet-in-tube device is a new option for direct launch of acceleration-insensitive payloads into Earth orbit. The projectile is the centerbody of a ramjet …
The ram accelerator: overview and state of the art
The ram accelerator, a chemically driven ramjet-in-tube device is a new option for direct launch of acceleration-insensitive payloads into Earth orbit. The projectile is the centerbody of a ramjet …
Ram calls this the ‘Goldilocks truck’ that covers most peoples’ needs
Feb 24, 2025 · Two years ago, all eyes and headlines were laser-focused on Ram’s new all-electric ‘REV’ truck — a direct competitor to the Ford F-150 Lightning and the Chevy …
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