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**Brett** · #1 June 3rd 15, 09:57 PM

Quote:

Originally Posted by Dan Marotta

That's what I thought.

On 6/2/2015 7:47 PM, wrote:
They are MODEL engines and are not "man rated" by the FAA. There are several YT vids showing how they are built and assembled. Watch these and then determine if you ever want to put your "skin on the line" using one. By comparison, the Williams FJ-44 is a small TURBOFAN originally built to power US cruise missiles. It had to demonstrate extreme reliability before it was FAA certified and man rated for use on very light business jets. Not to mention it was originally designed to stringent military specs. Bottom line again, these are model TURBOJET engines. Never put your safety/life in a position where their reliability matters.

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Dan Marotta

No Dan, the TJ42 turbine used in the JS1 Revelation has been developed from scratch specifically for the sailplane market. They have never been used in anything but sailplanes and comprehensive testing has been completed for certification. I have had the privilege of visiting the factory in Northern Germany and was very impressed with the dedicated plant and the professionalism of the staff.

Brett