2010, ISBN: 9781234523398

RareBooksClub. Paperback. New. This item is printed on demand. Paperback. 50 pages. Original publisher: Moffett Field, Calif. : National Aeronautics and Space Administration, Ames Resea… Plus…

RareBooksClub. Paperback. New. This item is printed on demand. Paperback. 50 pages. Original publisher: Moffett Field, Calif. : National Aeronautics and Space Administration, Ames Research Center, 1984 OCLC Number: (OCoLC)232605357 Subject: Vertically rising aircraft. Excerpt: . . . 13 88 VTOgLrosws eight. Theyhavneomeaniningamilitarysenseb, utareincludetdo provideameasuorfe performafnocrecompariswoitnhNASgAuidelinesshowinnthelastcolumn. 4. 2. 2. 2McDonnDeolluglas TheconcesptudiebdyMcDonnDeollugla ( Ms CAIiRs ) acanard wdinegsigwnithswivelinngozzlefsorward andaft of theaircraftcenteorf gravity. Thefour-postecor nfiguratioMn, CAMIRode2l79-3is, showinn Figs. 69and70; Fig. 69depictstheverticalflight configuratioann, dthecruiseflight modies showinn Fig. 70. Referenc5e1sand58givedetailsof thisconcept. Configuration. Model 279-3 features a close-coupled canard and side-mounted half-axisymmetric inlets to provide air to a single engine with modulated fan-stream augmentation. Four swiveling nozzles provide thrust vectoring capability for vertical flight as well as for in-flight maneuvering. Fan air flows through the forward nozzles and the engine core flow exits through the aft nozzles. Modulation of the fan stream and engine speed provides the capability of trimming center of gravity travel associated with fuel burnoff and store loading. This modulation can also provide a portion of the pitch maneuvering control or can be used as a backup system. The location of the aft nozzles near the wing trailing edge offers the potential of enhanced circulation, translating into increased maneuverability and STOL performance. Thrust vectoring can increase the sustained load factor of Model 279-3 by 0. 2 g and the instantaneous load factor by 2. 0 gs at 0. 6 Mach number at an altitude of 3, 048 m ( 10, 000 ft ). As shown in Fig. 69, the main landing gear of Model 279-3 are located fore and aft on the fuselage in a bicycle fashion with outriggers in pods on the wing. Three views of the MCAIR concept are shown in Fig. 71, and a dimensional summary is given in Table 9. T. . . This item ships from La Vergne,TN., RareBooksClub, RareBooksClub. Paperback. New. This item is printed on demand. Paperback. 156 pages. Original publisher: Cleveland, Ohio : National Aeronautics and Space Administration, Glenn Research Center, 2010 OCLC Number: (OCoLC)699820372 Excerpt: . . . iv. NOMENCLATURE A Area, ft2 BHP Brake horsepower BN Barber-Nichols, Inc. ( pump and compressor manufacturer ) CATIA Computer aided three-dimensional interactive application Cryo-Mach Corporation ( pump manufacturer ) CM m2 C Meridional fluid velocity, ft sec DLN2 Densified liquid nitrogen DLO2 Densified liquid oxygen FS Full scale Gross lift-off weight, lb m GLOW GHe Gaseous helium GN2 Gaseous nitrogen GO2 Gaseous oxygen GRC Glenn Research Center Ground support equipment GSE h Enthalpy, Btu lbm H Head, ft Hg Mercury HP Horsepower pv Is V acuum specific impulse, sec KVA Kilovolt-amperes LH2 Liquid hydrogen LMMSS Lockheed Martin Michoud Space Systems LN2 Liquid nitrogen LOX, LO2 Liquid oxygen LT Level transducer M Mass, lbm MAWP Maximum allowable working pressure, psi MSFC Marshall Space Flight Center N Speed, rpm NBP Normal boiling point 0. 5 0. 75 N Qv H S pecific speed, N s OC Over-current OD Outside diameter OEM Original equipment manufacturer P Pressure, psia PC Personal computer PID Proportional, Integral, Derivative ( controllers designed to automate the process ) PDT Differential pressure transducer PDU Propellant densification unit PLC Programmable logic controller PT Pressure transducer Q Environmental heat transfer rate, Btu sec e NASA TM - 2010-216247 11 This item ships from La Vergne,TN., RareBooksClub<

2010, ISBN: 9781234523398

Rarebooksclub.com. Paperback. New. This item is printed on demand. Paperback. 62 pages. Original publisher: Houston, Tex. : Rice University ; Washington, DC : National Aeronautics and S… Plus…

Rarebooksclub.com. Paperback. New. This item is printed on demand. Paperback. 62 pages. Original publisher: Houston, Tex. : Rice University ; Washington, DC : National Aeronautics and Space Administration ; Springfield, Va. : National Technical Information Service, distributor, 1990 OCLC Number: (OCoLC)69372340 Excerpt: . . . 9 AAR-247 e2 ( 8a ) Cm A0 ( M ) AI ( M ) A2 ( M ), 2 ( 8b ) CL B0 ( M ) BI ( M ) B2 ( M ) , with the implication that E B0 ( M ) BI ( M ) B2 ( M ) 2 A0 ( M ) AI ( M ) A2 ( M ) 2 -( 8c ) The coefficients Ai ( M ), Bi ( M ) are computed by means of a least square fit of the available GHAMEdata at various Mach numbers and angles of attack. Engine Data. For the ramjet engines, the following 3. 4. simplified representation is assumed for the thrust and the specific impulse: ( 9a ) T BT. ( M ) p p. , I I ( M ), ( 9b ) sp sp. with the implication that the fuel rate ( weight of fuel consumed per unit time ) is given by T Isp B T. ( M ) Isp ( S ) p p. . ( 9c ) Here, p. is a reference density ( density at the reference altitude h. 100 kft ), T. ( M ) is a reference thrust ( thrust for B 1 and h h. ), and I ( M ) is a reference specific impulse ( specific sp. impulse for B 1 and h h. ). While the thrust is assumed to depend on the power setting, the altitude, and the Mach number, This item ships from La Vergne,TN., Rarebooksclub.com, Rarebooksclub.com. Paperback. New. This item is printed on demand. Paperback. 156 pages. Original publisher: Cleveland, Ohio : National Aeronautics and Space Administration, Glenn Research Center, 2010 OCLC Number: (OCoLC)699820372 Excerpt: . . . iv. NOMENCLATURE A Area, ft2 BHP Brake horsepower BN Barber-Nichols, Inc. ( pump and compressor manufacturer ) CATIA Computer aided three-dimensional interactive application Cryo-Mach Corporation ( pump manufacturer ) CM m2 C Meridional fluid velocity, ft sec DLN2 Densified liquid nitrogen DLO2 Densified liquid oxygen FS Full scale Gross lift-off weight, lb m GLOW GHe Gaseous helium GN2 Gaseous nitrogen GO2 Gaseous oxygen GRC Glenn Research Center Ground support equipment GSE h Enthalpy, Btu lbm H Head, ft Hg Mercury HP Horsepower pv Is V acuum specific impulse, sec KVA Kilovolt-amperes LH2 Liquid hydrogen LMMSS Lockheed Martin Michoud Space Systems LN2 Liquid nitrogen LOX, LO2 Liquid oxygen LT Level transducer M Mass, lbm MAWP Maximum allowable working pressure, psi MSFC Marshall Space Flight Center N Speed, rpm NBP Normal boiling point 0. 5 0. 75 N Qv H S pecific speed, N s OC Over-current OD Outside diameter OEM Original equipment manufacturer P Pressure, psia PC Personal computer PID Proportional, Integral, Derivative ( controllers designed to automate the process ) PDT Differential pressure transducer PDU Propellant densification unit PLC Programmable logic controller PT Pressure transducer Q Environmental heat transfer rate, Btu sec e NASA TM - 2010-216247 11 This item ships from La Vergne,TN., Rarebooksclub.com<