scispace - formally typeset
Search or ask a question
Author

C.V. Murray

Bio: C.V. Murray is an academic researcher. The author has an hindex of 1, co-authored 1 publications receiving 5 citations.

Papers
More filters
Journal ArticleDOI
TL;DR: Armstrong Whitworth Aircraft Ltd. as mentioned in this paper took a serious interest in the design and development of tailless aircraft and today two types of aircraft are undergoing research flight testing, one of which is a Tailless Aircraft.
Abstract: SIX years ago Sir W. G. Armstrong Whitworth Aircraft Ltd. began to take a serious interest in the design and development of tailless aircraft and today two types arc undergoing research flight testing.

5 citations


Cited by
More filters
Journal ArticleDOI
TL;DR: Smith, M. J. et al. as mentioned in this paper, "Study and Tests to Reduce Compressor Sounds of Jet Aircraft," TR DS-68-7, contract FA65WA-1236 to FAA, 1968, General Electric Co., Cincinnati, Ohio.
Abstract: Smith, M. J. T. and House, M. E., "Internally Generated Noise From Gas Turbine Engines, Measurement and Prediction," Transactions ofASME: Journal of Engineering for Power, 1967. Smith, E. B. et al., "Study and Tests to Reduce Compressor Sounds of Jet Aircraft," TR DS-68-7, contract FA65WA-1236 to FAA, 1968, General Electric Co., Cincinnati, Ohio. Schaut, L. A., "Results of an Experimental Investigation of Total Pressure Performance and Noise Reduction of an Airfoil Grid Inlet," document D6-23276, 1969, Boeing Co., Seattle, Wash.

31 citations

Proceedings ArticleDOI
01 Mar 1989
TL;DR: In this paper, flight research conducted on natural laminar flow (NLF) is discussed, focusing on recent flight testing conducted by the National Aeronautics and Space Administration.
Abstract: Flight research conducted on natural laminar flow (NLF) is discussed. Emphasis is on recent flight testing conducted by the National Aeronautics and Space Administration. To place these flight experiences in perspective, important flight tests from the early days of natural laminar flow research are first reviewed to recall the lessons learned at that time. Then, based on more recent flight experiences and analyses with state-of-the-art boundary layer stability theory, speculation is made on the possibility of extensive NLF on swept wing transport aircraft.

27 citations

01 Jan 1990
TL;DR: In this paper, the development status and performance levels achieved with natural laminar flow (NLF), extended wing chord Laminar Flow Control (LFC), and hybrid laminara flow control (HLFC) concepts combining NLF and partial-chord LFC in the leading edge region.
Abstract: An account is given of the development status and performance levels achieved with natural laminar flow (NLF), extended wing chord laminar flow control (LFC), and hybrid laminar flow control (HLFC) concepts combining NLF and partial-chord LFC in the leading-edge region. Attention is given to NLF wing structure construction methods capable of achieving the requisite surface-irregularity tolerances, LFC through wing surface suction slots or perforated skins, and the deleterious effects of insects, ice crystals, and noise disturbance inputs on the ability of NLF, LFC, and HLFC wings to maintain effective laminar flow operation.

20 citations

Proceedings ArticleDOI
20 Mar 1973

7 citations

01 Jan 2001
TL;DR: A review of the most recent aircraft design studiesshows a significant number of flying wing concepts are under consideration, especial for military 5applications as discussed by the authors.
Abstract: Richard M. W_x)d and Steven X. S. Bauer:ABSTRACTThe present paper has documented the historicalrelationships between various classes of all liftingvehicles, which includes the flying wing, all wing,tailless, lifting body, and lifting fuselage. Thediversity in vehicle focus was to ensure that allvehicle types that ma) have contributed to or beeninfluenced by the development of the classical fl)ingwing concept was investigated."['he paper has provided context and perspective forpresent and future aircraft design studies that mayemplo_ the all lifting vehicle concept. The paper alsodemonstrated the benefit of developing anunderstanding of the past in order to obtain therequired knowledge to create future concepts withsignificantl2_ improved aerodynamic performance.INTRODUCTIONEven after more than a century of research anddevelopment the flying wing is still viewed as aunique and unconventional aircraft concept _4v. Thisrealit3 is even more surprising when you consider thesignificant aerodynamic and structural benefitsafforded rising wing designs, compared toconventional designs. Historical revie_vs 5__'_5"_7 onthis topic appear to point to a variety of reasons forthe slow acceptance of flying wing type vehicles.From a technical point of view, the dominant issuehas been stability and control, which to this daycontinues to plague this class of vehicle. As a result,flying wing aircraft continue to be limited to missionscomprised of only low lift (cruise) conditions. Inaddition to the technical issues, there were culturalissues faced by this class of aircraft that consisted ofnegative public perceptions and politics. In the firsthalf of the 2() _hcentury, which was the most prolificperiod of flying wing development, these two issuesseverely restricted technical discussions and as aresult the opportunity to mature this concept was lost.The present cultural environment is slightl)improvedbut the public perception and politics continue tohaunt this concept todayA review of the most recent aircraft design studiesshows a significant number of flying wing conceptsare under consideration, especiall_ for militar 5applications. It is clear that the realization of theflying wing concept is benefiting from recenttechnological advances in aerodynamics, floxscontrol, flight control s3stems, materials, structures,and propulsions s_stems. It also appears that thecultural barriers of the past are also deterioratingallowing for the rich body of flying wing research tobe shared and studied and thus, contribute to futurevehicle development activities.However, a review of the ongoing research indicatesthat we continue to re-create the past instead oflearning from the past to create the future _5_. Thesesentiments are clearl 3 stated through the ff)llowingquotes from A. R. Weyl, 1944. -_-_-"-_"...Flying Wing, in which at the present period moreinterest than ever is being displayed.""...it seems a fact that experience collected in the pastwith tailless aeroplanes is either unknown orforgotten or. at the least ill-judged...""...it is by no means sufficient that a crazy designflies: it must fly far better than eveo'thing else inorder to raise attention attlong those closedcircles..."The relevance of these three statements after nearlysix decades its quite remarkable. The_ point to theneed for a thorough understanding of the designtrends, historical contributions, and technicalrelationships for fl3ing wing vehicles as well as otherclosely related vehicle types before significant workis performed. With this understanding will come newSenior Research Aerodynamicist, ConfigurationAerod?namics Branch NASA Langley ResearchCenter, Associate Fellow AIAACopyright ,_, 2001 by the American Institute ofAeronautics and Astronautics. Inc. No copyright isasserted in the United States under Title 17, U. S. Code.The U. S. Government has a royalty-free license toexercise all rights under the copyright claimed herein forgovernment purposes. All other fights are reserved b?the copyright owner.American Institute of Aeronauhcs and Astronautics

1 citations