GR-7 Experimental Turbojet Engine

       These pages chronicle the construction of a home-built turbojet engine. The GR-7 is an experimental turbocharger jet engine that I have built for my personal education in gas turbine engines. I am posting this information for other enthusiasts to possibly benefit from. If you have any questions or comments about this project feel free to contact me.

Thanks, Don Giandomenico

       WARNING ! This project is posted for entertainment value only! Do not attempt to re-create this project as these articles are not written as “how-to” or “instructable” articles. There are no plans or engineered drawings on these pages so please do not attempt to build an engine solely from the information posted on this site!!! RCDON is not responsible for damages or injury resulting from the information posted in these pages!!!

6/18/05 The GR-7 project, the journey begins!!!

7/3/05 Building the combustor elbow

8/10/05 Building the combustion chamber

9/23/05 Building the inlet duct & engine frame

10/1/05 Building the hydraulic system

11/10/05 Installing the engine’s subsystems

11/19/05 Building the evaporator system

11/23/05 Flame tube fabrication and testing

11/26/05 Combustor completion and turbine testing

1/29/06 Building the throttle valve assy. & bellmouth

2/11/06 Building the jet pipe

5/22/06 Building the starter system - Part I

5/28/06 Building the starter system - Part II

6/4/06 Building the starter system - Part III

8/11/06 Testing the starter system

4/18/09 Building the ECU box

6/5/09 Building the tach tube & FOD screen

6/12/09 Building the ECU - Part I

6/19/09 Building the ECU - Part II

6/26/09 The ECU test run

7/5/09 Preparing the engine for testing

7/22/09 Performance testing the GR-7

7/31/09 Overhauling the engine - Part I

8/14/09 Overhauling the engine - Part II

Here are a few links to some “home-built” jet engine projects:

“Turbojer” Jerry Green’s Home Page


       Thanks again for all of the positive comments about my projects. I appreciate your e-mails as they encourage me on my website efforts.

Thanks, Don Giandomenico

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