The Future of Flight
This paper presents viewgraphs on supersonic transports, hypersonic planes, runway-independent aircraft, and small personal aircraft which are possibilities for the aircraft of the future.
Springer, Anthony M.↗
Engineering topics
Springer, Anthony M.
Publications and source records attributed to Springer, Anthony M..
X-34 Project: Overview and Status
This document is a viewgraph presentation which reviews the progress in the X-34 Project. The X-34 program demonstrates the technologies and operations required to develop the next generation of reusable launch vehicles. The presentation includes descriptions and design views of the vehicle. It reviews features of the MC-1 (i.e. Fastrac Engine), and the propulsion system. It also includes information about the thermal protection system.
Springer, Anthony M.↗
Comparison of the Aerodynamic Characteristics of Similar Models in Two Size Wind Tunnels at Transonic Speeds
The aerodynamic characteristics of two similar models of a lifting body configuration were run in two transonic wind tunnels, one a 16 foot the other a 14-inch and are compared. The 16 foot test used a 2% model while the 14-inch test used a 0.7% scale model. The wind tunnel model configurations varied only in vertical tail size and an aft sting shroud. The results from these two tests compare the effect of tunnel size, Reynolds number, dynamic pressure and blockage on the longitudinal aerodynamic characteristics of the vehicle. The data accuracy and uncertainty are also presented. It was concluded from these tests that the data resultant from a small wind tunnel compares very well to that of a much larger wind tunnel in relation to total vehicle aerodynamic characteristics.
Springer, Anthony M.↗
Transonic Aerodynamic Characteristics of a Proposed Wing Body Reusable Launch Vehicle Concept
A proposed wing body reusable launch vehicle was tested in the Marshall Space Flight Center (MSFC) 14 x 14 inch trisonic wind tunnel during the winter of 1994. this test resulted in the vehicle's subsonic and transonic (Mach 03 to 1.96) longitudinal and lateral aerodynamic characteristics. The effects of control surface deflections on the basic vehicle aerodynamics including a body flap, elevons, ailerons, and tip fins are presented.
Springer, Anthony M.↗
An oil flow study of the reference Shuttle-C configuration
An oil flow study of the reference Shuttle-C configuration is presented. The Shuttle-C vehicle was a proposed shuttle derived vehicle where the orbiter was to be replaced by an unmanned cargo carrier element. Oil flows are shown for the range of Mach numbers from Mach 1.10 to 3.48 at various angles-of-attack and roll angles. The major flow field phenomena over the Shuttle-C reference configuration are shown in these oil flows. Using the oil flows, a qualitative understanding of the flow around the vehicle can be determined, aiding the quantitative definition of aerodynamic data from theoretical analyses and test results. The oil flows presented in this study were obtained from configurations tested in the NASA Marshall Space Flight Center's 14-Inch Trisonic Wind Tunnel from October 1988 through February 1989.
Pokora, Darlene C.↗
A shadowgraph study of the National Launch System's 1 1/2 stage vehicle configuration and Heavy Lift Launch Vehicle configuration
A shadowgraph study of the National Launch System's (NLS's) 1 1/2 stage and heavy lift launch vehicle (HLLV) configurations is presented. Shadowgraphs are shown for the range of Mach numbers from Mach 0.6 to 5.0 at various angles-of-attack and roll angles. Since the 1 1/2 stage configuration is generally symmetric, no shadowgraphs of any roll angle are shown for this configuration. The major flow field phenomena over the NLS 1 1/2 stage and HLLV configurations are shown in the shadowgraphs. These shadowgraphs are used in the aerothermodynamic analysis of the external flow conditions the launch vehicle would encounter during the ascent stage of flight. The shadowgraphs presented in this study were obtained from configurations tested in the Marshall Space Flight Center's 14-Inch Trisonic Wind Tunnel during 1992.
Pokora, Darlene C.↗