Searched for: mods_note_institution_s%3A%22Cranfield%255C+Institute%255C+of%255C+Technology%22
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Allen, J.E. (author), Spillman, J.J. (author)
Windtunnel measurements of the flow around the tip tanks of a model of a Morane-Soulnier Paris aircraft have been used to design cambered and twisted auxiliary surfaces, each only 0.4% to 0.6% of the wing area, which unwound the tip vortices formed at incidence and in so doing experienced a thrust, effectively reducing the vortex drag. Flight...
report 1977
document
Dickman, C.C. (author)
Starting in 1946 as the College of Aeronautics, the Cranfield Institute of Technology was granted university status in 1969. In 1993 it changed its name to Cranfield University.
report 1977
document
Fews, R.C. (author), Tetlow, R. (author)
Starting in 1946 as the College of Aeronautics, the Cranfield Institute of Technology was granted university status in 1969. In 1993 it changed its name to Cranfield University.
report 1975
document
Fews, R.C. (author), Tetlow, R. (author)
Starting in 1946 as the College of Aeronautics, the Cranfield Institute of Technology was granted university status in 1969. In 1993 it changed its name to Cranfield University.
report 1975
document
Klein, V. (author)
The problem of the selection from measured data of an aircraft of an adequate model which v.ould he the simplest and sufficient approximation to the correct model and which would facilitate the successful determination of the unknown parameters is discussed. Two ways for the proper model structure verification are recommended, namely sensitivity...
report 1975
document
Fews, R.C. (author), Tetlow, R. (author)
Starting in 1946 as the College of Aeronautics, the Cranfield Institute of Technology was granted university status in 1969. In 1993 it changed its name to Cranfield University.
report 1975
document
Klein, V. (author), Gregory, R. (author)
The concept and possible realization of a self-contained instrumentation system for the measurement of stability and control characteristics of an aircraft are described. The recommended accurary of the system is based on its relation to the accuracy of aerodynamic derivatives of an aircraft evaluated from flight data. Therefore several sets of...
report 1974
document
Klein, V. (author)
The basic performance characteristics of an instrumentation system are defined. The concept of its accuracy and precision is based on the same characteristics as for the measurement process. It is explained how to find the basic performance characteristics of an instrumentation system from the experimental data obtained during static and dynamic...
report 1973
document
Goodger, E.M. (author)
Manually calculated values of adiabatic combustion temperature are presented, using a slightly modified version of Penner's method, for the simple cases of non-dissociation, and of dissociation to CO, H2 and O2 only, for a wide range of gasseous-phase hydrocarbon compounds in stoichiometric admixture with air. The variations in combustion...
report 1973
document
Johns, K.C. (author)
A study is made of a method of vibration reduction in tall civil engineering structures in which flexibility is introduced artificially, but with passive dampers to absorb energy during any motion which results. In particular, an examination is carried out of the effect of introducing an articulation part-way up a tall tower, with passive...
report 1973
document
Howe, D. (author)
The E67 design was for a vertical take off and landing aircraft for executive use. Vertical flight capability was achieved by using the tilt wing concept. In the initial version of the design power was provided by two Rolls Royce H1400 Gnome turbo shaft engines driving two 16 ft. diameter propellers. Cross shaft interconnection between the...
report 1973
document
Ballal, D.R. (author), Lefebvre, A.H. (author)
The growing awareness of pollutant emissions from gas turbine engines is highlighting the need to minimise the amount of air employed in liner film cooling and thereby reduce the output of carbon monoxide and unburned hydrocarbons. To this end an analysis has been made of experimental data obtained on a specially designed film-cooling rig which...
report 1973
document
Smith, E. (author)
Dimensional changes and the development of cracking in the Charpy V-notch impact test have been studied using a low energy blow technique. Notch opening, angle of bend, notch root contraction and lateral expansion are shown to be proportional to the energy of the low blow which does not cause complete fracture and to be relatively independent of...
report 1973
document
Torode, H.A. (author)
Comparison is drawn between performance test data gathered from several variants of the Slingsby T51 Dart Sailplane as tested at Cranfield during 1964/5 and also from other contemporary sources. In each case an identical statistical approach has been used in the data analysis. The data shows excellent correllation both between the aerodynamic...
report 1973
document
Kirk, C.L. (author)
The r.m.s. centre of gravity accelerations and undercarriage forces are determined for a KC-135 tanker aircraft taxiing on a randomly rough runway surface at various speeds up to 260 ft/sec. The maximum r.m.s, acceleration was found to be 0.32g at a taxiing speed of 210 ft/sec. Tyre deformations were found to be of the order of 0.6 in r.m.s. and...
report 1973
document
Webb, J. (author)
The design of a system for mechanically cross coupling the engines of an STOL transport aircraft has been studied, and in particular, the initial design problems of selecting the operating speed and assessing the weight of the system has been investigated. It is found that a minimum weight system will exist, but that, in practice, the speed...
report 1972
document
Campbell, D.J. (author), Apps, R.L. (author), Smith, E. (author)
Submerged arc welds were prepared in quenched and tempered steel plates using a mild steel wire, two low alloy steel wires, and commercially available fluxes. Heat inputs of 1.2, 2.2, and 4.3 KJ/mm were used for each wire/flux combination and in each case the preheat/ interpass temperature was maintained within the range 120 - 150ยบ C. Sections...
report 1972
document
Eshelby, M.E. (author)
This report describes three methods of evaluating the pressure error of an aircraft pitot-static system and compares the relative merits of each method. In particular the determination of static pressure error by a trailing cone is considered as a method suitable for use on light aircraft and comparison is made between the pressure error...
report 1972
document
Chambers, W.F. (author), Apps, R.L. (author)
The literature on electron beam welding has been reviewed with regard to (1) weldability and material properties; and (2) production applications. Each section has been sub-divided to allow easy reference to publications on specific materials or particular industries. This report should be read in conjunction with CIT Memo 69, "Bibliography on...
report 1972
document
Roorda, J. (author)
The modern trend toward lighter and more flexible structural designs brings with it increasing demands for ways and means of dissipating excess energy transferred to such structures by the action of dynamic external forces. The present study concerns the use of active feedback control mechanisms as a means of damping out excess vibrations. The...
report 1971
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