NASA 1996 SBIR Phase I


PROPOSAL NUMBER : 96-1 01.02-3721

PROJECT TITLE : Transonic Micro-Turbojet Propulsion System

TECHNICAL ABSTRACT (LIMIT 200 WORDS)

NASA currently has a need for an airbreathing propulsion system capable of providing advanced sub-scale demonstration aircraft with sufficient thrust to explore high-subsonic and transonic flight. SWB Turbines; with support from McDonnell Douglas Aerospace and Orbitec, proposes to develop a 70 lb. thrust micro-turbojet engine with integrated inlet and exhaust system capable of achieving transonic flight speeds. The transonic micro-turbojet propulsion system will include an enhanced-performance, growth-version of SWB Turbines' existing 35 lb thrust turbojet specifically configured for transonic applications.

This new engine will be installed in an integrated nacelle incorporating a 2-D ramped inlet, bypass/bleed system, and 2-D single expansion ramp nozzle (SERN) with ejector. Advanced aircraft currently being investigated by NASA will be evaluated during the Phase I study to provide realistic size and performance objectives. The primary goal of the proposed Phase I effort will be to conduct a thorough technical analysis of this propulsion system to demonstrate the feasibility of propelling supersonic-capable, sub-scale aircraft to Mach 1.0 using a micro-turbojet engine. A combustor rig test will also be performed during Phase I to reduce program risk. Phase II will include fabrication, static testing, and flight testing of the propulsion system installed on a NASA sub-scale aircraft.

POTENTIAL COMMERCIAL APPLICATIONS
The transonic micro-turbojet propulsion system would be applicable to atmospheric/environmental research aircraft, glider boost power modules, refuse incineration power generators, and ground-mapping remotely piloted vehicles. Additional areas of use may include advanced cruise missiles, target drones, decoys and other Unmanned Aerial Vehicles (UAV's) currently under study in the Department of Defense.
NAME AND ADDRESS OF PRINCIPAL INVESTIGATOR
Thomas J. Sierocuk
SWB Turbines
2418 Industrial Drive, Unit F
Neenah, WI 54956


NAME AND ADDRESS OF OFFEROR
SWB Turbines
2418 Industrial Drive, Unit F
Neenah, WI 54956