Initial feasibility assessment of a high altitude long endurance airship. High platform in the late 1960s, raven industries was contracted to build a small stratospheric airship as a technology demonstrator. Hybrid airships make it possible to affordably deliver heavy cargo and personnel to remote locations around the world. Ithas the potential to hover at output, which flight level fl 650, approximately 65,000 ft above sea level, for extensive periods of time system2. Pdf a high altitude solar powered airship provides the ability to carry large payloads to high altitudes and remain on station for extended periods of. The high altitude airship is an unmanned aerostattype lighterthanaircraft that may eventually provide the u. The solid curves correspond to the maximum velocity of 46 ms, while the dashed curves are for the nominal velocity of 18 ms.
Army conducts successful high altitude airship flight. Movements of the airship will be described with respect to the x axis roll, the y. Pdf on sep 20, 2011, ira smith and others published hisentinel80. The imaging payload of a highaltitude airship is usually installed in the task capsule and can swim or rotate within a certain angular range in order to observe the ground target. This project is associated with lockheeds high altitude airship program, which is intended to soar at over 65,000 feet for over 30 days at a time, and isis could even play a significant role in ballistic missile and cruise missile defense. For instance, the wind blows from, the vehicle points towards, and the flight heads towards, a direction measured clockwise from north 0 o. Oct 27, 2017 in this video the main construction parts of an experimental new concept is shown for a high altitude airship, a launch system, that should be able to climb higher than any conventional balloon. Airships haa as a platform for surveillance or communications operations has attracted growing interest.
The partially inflated hull is less susceptible to buffeting and turbulence from lower atmosphere air currents during ascent. Airship technology stratospheric platform system from japan. The high altitude airship the haa is an unmanned, lighterthanair vehicle being developed by the lockheedmartin under the program direction of the missile defense agency. Paluszeky princeton satellite systems, princeton, nj 08542 yiyuan zhaoz university of minnesota, minneapolis, mn 55455 lighterthan air vehicles are an attractive solution for many applications requiring a sustained airborne.
The project focused on airship modeling, guidance and control design, robustness analysis, and assessing the benefits of trajectory optimization in earthbased, highaltitude applications. Initial feasibility assessment of a high altitude long. S army with a communications and surveillance platform at 60,000 feet. Highaltitude platform station or highaltitude pseudosatellite short. The performance goals for this prototype haa include sustained operations for at least two weeks at 60,000 feet altitude, while providing 500 watts of power to a userdefined 50lb. High performance textile fabrics are highly desirable for high altitude airship haa hull materials that are expected to be lightweight and strong, flexible at cryogenic temperature, have outstanding tear resistance, and durable over long period. The radius of this coverage area doubles when a 5 deg elevation angle is assumed.
A cable of a length at least equal to the deployment altitude of the airship has a first end attached to the elevator module and a second end attached to a winch mounted on the gondola. The hisentinel80 unmanned high altitude airship completed a successful test nov. Applications of scientific ballooning technology to high. Research article imaging tasks scheduling for highaltitude. In this video the main construction parts of an experimental new concept is shown for a high altitude airship, a launch system, that should be able to climb higher than any conventional balloon. Guidance, navigation and control of highaltitude airships. Elefante group responded to critics of its proposal to get the fcc to start a rulemaking process that would consider rules for stratosphericbased communications services in. This study investigated the stationkeeping abilities of two such high altitude airships. R2508 airspace with airship coverage the onboard guidance, navigation and control system will work autonomously to perform station. Take advantage of existing low and mid altitude airships. Preliminary reliability analysis of a highaltitude. High altitude airship cabin sizing, pressurization and air conditioning antonio dumas, diego angeli, michele trancossi di.
Textile laminates for highaltitude airship hull materials. Multidisciplinary design optimization mdo is introduced to the conceptual design optimization of high altitude airship haa. Imaging tasks scheduling for highaltitude airship in emergency condition based on energyaware strategy. We use the airship geometry from section b on page 4, and choose an altitude of 70 kft. A highaltitude, stationkeeping astronomical platform.
The demonstrator launched at akron municipal airport very early this. Development of an aerodynamic model and control law design for a high altitude airship. High altitude airship flight control system design and. The project focused on airship modeling, guidance and control design, robustness analysis, and assessing the benefits of trajectory optimization in. Elefante group responds to critics of its proposed airship. Optimal design and experiment of propellers for high. Burning less than one tenth the fuel of a helicopter per ton, the hybrid airship will redefine sustainability for the future. An elevator module is releasably secured to a gondola attached to the airship. The method as claimed in claim 22, including retrieving the airship after an extended period of operation at high altitude, comprising the steps of unwinding the cable to lower the elevator module back to a landing site on the ground, providing a location signal from the elevator module as it is lowered, tracking the location signal from a retrieval vehicle and driving the vehicle towards. Transport airship requirements pdf under the provisions of 14 cfr part 21. Cooperativeschedulingofimagingobservationtasksfor high.
Highaltitude platforms haps are aircraft, usually unmanned airships or. Highaltitude platforms present situation and technology trends. Research article imaging tasks scheduling for highaltitude airship in emergency condition based on energyaware strategy lizhimeng,hechuan,qiudishan,liujin,andmamanhao science and technology on information systems engineering laboratory, national university of. Lockheed martin was under contract to build a subscale prototype airship system, the high altitude long endurancedemonstrator haled.
Pdf initial feasibility assessment of a high altitude. Preliminary reliability analysis of a highaltitude airships envelope jian liu, quanbao wang, jian chen, haitao zhao, and dengping duan proceedings of the institution of mechanical engineers, part g. Status and plans of high altitude airship haatm program. Nov 22, 2010 the hisentinel80 unmanned high altitude airship completed a successful test nov. The initial goal for the new design is one year of continuous loitering over a. The airship was aiming to reach an altitude of 60,000 ft. Research article imaging tasks scheduling for high. According to an analysis of alternatives aoa done by amsaa 2005, mobile subscribers can reliably communicate throughout the area of operations assuming a. A high altitude airship could provide 24 hour coverage of a target area if operated in this low wind region. Three subsystems, including aerodynamic and propulsion, structure, and energy subsystem.
Pdf initial feasibility assessment of a high altitude long. Pdf shape optimization of envelope of high altitude airship. Applications of scientific ballooning technology to high altitude. Potential alternative platforms are solarpowered highaltitude airships and airplanes. Development of an aerodynamic model and control law design. Highaltitude platforms present situation and technology. The high altitude lighter than air airship efforts at the us army space and missile defense commandarmy forces strategic command. Paluszek princeton satellite systems, princeton, nj 08542 yiyuan zhao university of minnesota, minneapolis, mn 55455 lighterthan air vehicles are an attractive solution for many applications requiring a. Atmospheric satellite united states usage, abbreviated atmosat or pseudosatellite british usage is a marketing term for an aircraft that operates in the atmosphere at high altitudes for extended periods of time, in order to provide services conventionally provided by an artificial satellite orbiting in space atmospheric satellites remain aloft through atmospheric lift, either aerostatic. A ballast rotates the airship into a flight attitude e. Therefore, this invention provides a highaltitude airship without requiring these components. Flight of a high altitude airship find, read and cite all the research you need on researchgate. Highperformance textile fabrics are highly desirable for highaltitude airship haa hull materials that are expected to be lightweight and strong, flexible at cryogenic temperature, have outstanding tear resistance, and durable over long period. This puts them in the range of the stratosphere, where these heights can put them above commercial aircraft and at heights that avoid turbulence and moisture.
Pdf highaltitude, longendurance airships for coastal. The high altitude airship prototype is supposed to debut at the end of this decade. Movements of the airship will be described with respect to the x axis roll, the y axis yaw, and the z axis pitch. Pdf on jul 18, 2014, subhani shaik and others published shape optimization of envelope of high altitude airship find, read and cite all the research you need on researchgate. Pdf development of an aerodynamic model and control law. High altitude airships southwest research institute. Development of an aerodynamic model and control law design for a high altitude airship joseph b. In recent years, the potential use of high altitude. A method for establishing a stationkeeping, stratospheric platform. Highaltitude, longendurance airships for coastal surveillance. High altitude airship cabin sizing, pressurization and air. Preliminary reliability analysis of a highaltitude airships. Initial feasibility assessment of a high altitude long endurance airship nasacr2003212724 december 2003 national aeronautics and space administration glenn research center prepared under contract nas300145. An inflatable airship of predetermined volume is filled with gas to lift a predetermined weight to a predetermined high altitude.
Tradeoff analysis of regenerative power source for long. The prototype system is expected to be about 152 m long and 46 m in diameter. Experimental concept for a high altitude airship youtube. Effect of highaltitude airships attitude on performance. The application of the highaltitude airship into the earth imaging reconnaissance activity is an important supplement of other reconnaissance methods. Highaltitude airships for the future force army rand corporation. Solar energy, which can be converted into electrical energy through photoelectric cells, plays an important role in the. The high altitude long endurance demonstrator haled was developed as a proof of concept system to assess.
Nov 28, 2002 therefore, this invention provides a high altitude airship without requiring these components. According to an analysis of alternatives aoa done by amsaa 2005, mobile subscribers can reliably communicate throughout the area of operations assuming a caspian sea theater, only with vertical nodes. Since it was designed as a technology demonstrator, the vehicle was. Relying on blimps for surveillance may not sound like the wave of the future, but a high altitude airship can deliver much greater persistence andor precision than airborne and orbital alternatives at. Various haaps projects haps have been proposed using both airship technology and high altitude aircraft. Highaltitude platform, highaltitude airship, stratospheric satellite, unmanned aerial vehicle, technological challenges, technology trends. Effect of highaltitude airships attitude on performance of its energy system. From that altitude, sensors have an unobstructed view of over 300 miles in any direction. On launch, the airship is partially inflated with a lifting gas. Development of an aerodynamic model and control law. Dolce national aeronautics and space administration glenn research center cleveland, ohio 445 introduction in august 2001, the power and onboard propulsion division of nasas glenn research center began.
News nasa seeks comments on possible airship challenge. May 22, 2012 imaging tasks scheduling for high altitude airship in emergency condition based on energyaware strategy the scientific world journal, vol. An airship could have a telescope on either end of it to create highresolution images of stars and other celestial objects, for example. Lindstrands highaltitude airship design for esa upper right. Lockheed martin is designing an airship, referred to as the high altitude airship haa. Effect of highaltitude airships attitude on performance of. It will be equipped with four solarpowered electric motors and vectorable large twin. Aug 17, 2018 elefante group responded to critics of its proposal to get the fcc to start a rulemaking process that would consider rules for stratosphericbased communications services in certain spectrum bands. Two sets of curves are plotted in figure 4, each set corresponding to a di. Scientists who study earth could benefit from data collected by airships at this altitude, such as for investigating climate change and weather.
The high altitude airship can not have desired performance to control the altitude rapidly and accurately when the elevator or ancillary air bursa charge or deflation is used only, because the elevator has little efficiency when the velocity is low and auxiliary air bursas charge or deflation control is very slow. The framework of concurrent subspace optimization csso, as a mdo methodology, is established for haa conceptual design. Development of a testing methodology for highaltitude propeller aircraft engineering and aerospace technology, vol. Research article imaging tasks scheduling for high altitude airship in emergency condition based on energyaware strategy lizhimeng,hechuan,qiudishan,liujin,andmamanhao science and technology on information systems engineering laboratory, national university of defense technology, changsha, china. Initial feasibility assessment of a high altitude long endurance airship nasa cr2003212724 december 2003 national aeronautics and space administration glenn research center prepared under contract nas300145. Flight of a high altitude airship find, read and cite all the research you need on. The highaltitude airships have great potential in military and civilian applications with the advantages of long endurance and low operating costs. High altitude pseudosatellites haps are systems or platforms that usually float or operate for long periods, sometimes for months, at about 20 km above the earths surface. On the other hand, the solar azimuth is measured clockwise from east 0o, as viewed from the earth to the sun, and the solar altitude never exceeds a magnitude of 90o. The first contract was with the missile defense agency in 2003, entitled long endurance, autonomous control of highaltitude airships. Improvement of endurance performance for highaltitude. Oct 16, 2007 the airship would be radio controlled from the ground and have a cruising speed of about 30 miles per hour, with wireless links to the rest of the joint force.
Highaltitude, longendurance airships for coastal surveillance anthony colozza analex corporation brook park, ohio 44142 james l. Advanced highaltitude aerobody the lyncean group of san. It is present a method to design flight control system for a high altitude. The first flight of the hisentinel80, an unm anned high altitude airship, completed a successful test nov. Advantages of space science from a highaltitude airship platform. The phoenix unmanned aerial vehicle uav is a small, autonomous airship designed to serve as a very long endurance, highaltitude atmospheric satellite that is capable of station keeping using an innovative variable buoyancy propulsion system.
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