A Comparison of Propulsion Systems for Space Exploration
There are three promising propulsion systems that might be used for space missions: chemical, direct nuclear, and nuclear electric. Selecting the best system for a mission involves comparing...

Nuclear Propulsion
In this paper, the possibilities and safety of nuclear propulsion will be discussed and explained. The main focus pertains to the efficiency and safety of this form of propulsion. Nuclear...

Propulsion Systems for Future Space Exploration
There are many types of propulsion that are being considered for future space travel needs. These include nuclear, solar sail, magnetoplasmadynamic (MPD) thrusters, and laser propulsion...

Propulsion Systems: Present and Future
Propulsion is the very essence of space travel. There are many types of propulsion. Each type has its advantages and disadvantages. Propulsion systems are constantly being improved just...

Space Debris
Space exploration has introduced many positive aspects, but there is also a growing problem. From huge rockets to tiny flakes of paint, space debris is cluttering a major area above the...

Logistics Carriers for the First Lunar Outpost
This paper describes that aspect of logistics concerned with the design parameters and operation of hardware that may be used to deliver and protect spares and resupply items for NASA's...

Surface Payload Unloading and Deployment Options for a Lunar Return Mission
While planetary exploration studies have focuses on many areas that are critical to mission success, such as landing space transportation vehicles on other planets, a preferred method...

Utilization of Liquid Carbon Dioxide for Planetary Exploration
The major component of the atmosphere of Venus and Mars is carbon dioxide CO2. This proposal is to use this carbon dioxide for planetary exploration...

Future Launch Systems: The Policy Challenge
A review of the literature and discussions with military, commercial, and NASA representatives shows that all users agree we need new systems, but there is no agreement on which to pursue....

The History and Present Status of Microwave Aircraft
The history of microwave-powered aircraft is reviewed from the point of view of interaction between the technology of beamed microwave power transmission and the applications for it. the...

ARIANE-5 Launch Operations Construction and Operation of a New Launch Complex for Lower Cost, Higher Reliability Missions
This paper describes the main criteria driving the evolution of these facilities : launch rate, vulnerability to accidents, reliability and safety, cost optimization and adaptation to...

SQP Methods for Inverse Airfoil Design
We consider inverse design problems of systems governed by suitable discretizations of a boundary value problem (BVP). We present and examine a Sequential Quadratic Programming (SQP) method...

Robotics for Challenging Environments
This volume, Robotics for Challenging Environments, contains the papers presented at the ASCE Specialty Conference on Robotics for Challenging...

Fiber-Glass Composite Aircraft Pad for Crop Dusting

Dynamic Loading of Airfield Pavements Caused by Aircraft Operations on Rough Runways
This paper presents results for dynamic pavement loading of various aircraft under takeoff and taxing scenarios. The data were obtained from computer simulation and applied to the Corps...

Environment-Friendly Deicing/Anti-Icing Fluid
NASA Ames has formulated a unique candidate non-glycol based freezing point depressant (FPD) fluid material that performs essentially the same or superior to currently used glycol based...

A Discussion of Nuclear Propulsion in Space Travel
Nuclear thermal propulsion (NTP) is gaining popularity as a safe alternative to conventional propulsion. Such alternatives are desirable to meet the goals of lunar colonization and manned...

Potential demand for passenger travel to orbit
In recent years the possibility of `space tourism', that is individual passenger travel to space on a commercial basis, has received increasing attention. The possibility of such an activity...

Alternative Launch Systems Will They Replace the Shuttle?

Commercial Aviation Maintenance
The Federal Aviation Administration (FAA) issues regulations and advisories for commercial airlines which establish the basis of the aviation maintenance and inspection programs. Commercial...

 

 

 

 

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