Asee peer logo

Laboratory Experience With A Model Jet Turbine

Download Paper |


2004 Annual Conference


Salt Lake City, Utah

Publication Date

June 20, 2004

Start Date

June 20, 2004

End Date

June 23, 2004



Conference Session

TIME 2: Laboratories

Page Count


Page Numbers

9.838.1 - 9.838.7



Permanent URL

Download Count


Request a correction

Paper Authors

author page

John Matsson

Download Paper |

NOTE: The first page of text has been automatically extracted and included below in lieu of an abstract

Session 2166

Laboratory Experience with a Model Jet Turbine

John E. Matsson

Oral Roberts University


This paper describes the experience gained from the operation of a JetCat model turbojet engine as part of an undergraduate mechanical engineering program. The engine was remotely controlled from a laptop using Jettronic for Windows software for the serial interface. Engine speed, fuel consumption, and exhaust gas temperature were measured using the software and the thrust was determined from a digital force gauge and compared with calculations based on different readings. Students designed the turbine mount and a safety enclosure for the engine. The use of this engine has been a low cost alternative to other commercially available turbojet laboratory systems.


It is now 65 years since the first successful flight using a jet turbine in the Heinkel He 178 aircraft1. Since then, modern turbo-jets have been developed to a high level of sophistication. During the last 15 years, model aircraft builders have also developed fully functional scale versions of jet turbines2-4. In recent years the Turbine Technologies SR- 30 turbojet engines have been used in mechanical engineering laboratories5-7. Another available laboratory system is the Powertek axial flow gas turbine engine. Our choice was to purchase a lower cost model aircraft engine kit that included all the necessary auxiliary equipment.

In this study, a turbojet laboratory system was set up in the undergraduate manufacturing course, and used for labs and demonstration purposes in fluid mechanics and applied thermodynamics8. The laboratory set up consists of a JetCat P-70 model jet engine and subsystems required for operation. The turbojet engine with a weight of only 1.2 kg and a diameter of 94 mm produces a maximum thrust of around 70 N at 120,000 rpm. The idle rpm is 35,000. The instrumentation provided with the engine includes a temperature sensor at the exhaust exit and a speed sensor. Furthermore, an electronic control unit (ECU) simplifies start up and assures safe operation by maintaining turbine rpm within certain limits. A support unit (GSU) was connected to the ECU for monitoring parameters such as temperature, rpm, and fuel pump voltage. By using a RS-232 serial

Proceedings of the 2004 American Society for Engineering Education Annual Conference & Exposition Copyright ©2004, American Society for Engineering Education

Matsson, J. (2004, June), Laboratory Experience With A Model Jet Turbine Paper presented at 2004 Annual Conference, Salt Lake City, Utah. 10.18260/1-2--13003

ASEE holds the copyright on this document. It may be read by the public free of charge. Authors may archive their work on personal websites or in institutional repositories with the following citation: © 2004 American Society for Engineering Education. Other scholars may excerpt or quote from these materials with the same citation. When excerpting or quoting from Conference Proceedings, authors should, in addition to noting the ASEE copyright, list all the original authors and their institutions and name the host city of the conference. - Last updated April 1, 2015