GR-1 Experimental Jet Engine

       These pages chronicle the construction of a home-built turbojet engine. The GR-1 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!!!

 1/7/04 Setting my goals for the GR-1 engine

 2/10/04 Acquiring parts needed for the project

 2/21/04 Building the combustor for the GR-1

 2/23/04 Building the engine frame

 2/29/04 Final assembly and test running the GR-1

 3/6/04 Installing the tachometer on the turbine

 3/7/04 Test results of the GR-1 turbojet engine

 3/8/04 The GR-1 Combustor Formula

 3/28/04 The GR-1 control wiring diagram

       I had taken photos of the project as I was progressing through the construction of the GR-1. I have put these Construction Photos together in an album for easy viewing. The photos may be helpful to those researching the turbocharger turbojet engine.

       See a video of the GR-1 Turbojet Engine run. I explain some of the basic parts of the turbine and go through the start up procedure.

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. Be sure to check out the next phase of the GR series: The GR-5 Turboshaft Project

Thanks, Don Giandomenico

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