USA flag logo/image

An Official Website of the United States Government

Altitude Compensating Nozzle Design Tool

Award Information

National Aeronautics and Space Administration
Award ID:
Program Year/Program:
2004 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
K T Engineering Corporation
238 Business Park Boulevard, Building 23B Suite J Madison, AL 35758-7552
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 1
Fiscal Year: 2004
Title: Altitude Compensating Nozzle Design Tool
Agency: NASA
Contract: NNM04AA52C
Award Amount: $69,809.00


Launch vehicle subsystem preliminary design tools that are fast, accurate, and seamlessly integrated into an electronic design and optimization environment have become an essential part of the preliminary design process. A Phase I study is proposed to significantly enhance the capabilities of the existing Aerospike Design and Performance Tool (ADAPT) computer code for use in the design and analysis of launch vehicle concepts employing altitude-compensating nozzles. Proposed Phase I enhancements include: 1) provisions to enable the analysis of user defined nozzle geometry, 2) consideration of base pressure with and without base bleed in the performance calculations, 3) methods to accommodate user defined combustion devise and nozzle efficiencies, and 4) methods to estimate potential side (control) forces resulting from asymmetric throttling of individual thrusters on an aerospike, plug, or plug-cluster engine. The proposed Phase I enhancements fit within a broader and more comprehensive Phase I-II plan. Future (Phase II) enhancements will include: 1) extension of the design and analysis methodology to other altitude compensating nozzle types, 2) modification of ADAPT allowing it to be used as an analysis module within a broader multidisciplinary optimization (MDO) framework, and 3) a web-based user interface.

Principal Investigator:

Joseph Szedula
Principal Investigator

Business Contact:

David Sisk
Business Official
Small Business Information at Submission:

K T Engineering Corporation
4835 University Square, Suite 2 Huntsville, AL 35816

EIN/Tax ID: 010707745
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No