Carbon Composite Turbojet Parts 2 

Well, Carbon Fiber is supposed to be super strong in tension, I can see it working. I wonder how the dovetail flats will hold up as they would be in compression.

Just a caution, the Titan made 14 dives to the Titanic before its carbon fiber hull failed. I’m sure the developers are aware of this.

I don't think you'll run the engine long enough to see wear by the blade roots on the disk. And even if you did, I doubt they would let you talk about it. But I'd really like to know how much worse the the wear of carbon fiber-on-metal is. Carbon fibers are crazy abrasive. On the other hand the blades being much lighter works in their favor. And I'm sure they manufactured the blades without fibers being right at the surface. Still, interesting.

How much weight would be saved by replacing all blades with the forged carbon fiber versions? Also, how much does the engine weigh normally?

"Crazy", huh? The future is now.

Congratulations Blade-X team and Jetcity for a successful set of tests

So I cannot watch everything you put out there is not enough time in the day unfortunately. But when the headline catches my eye I am locked in. I am convalescing from some surgery. So therefore I have time to see what you're up to. Perfect timing with out of this world this is cool stuff from our favorite Jet Man

The engine must of been pretty nervous

Cool! Always nice to see new tech bring additional efficiency to older devices. Regarding the sacrificial engine... I would think that a carbon fiber blade would do a bit less damage to the vanes and blades downstream if it were to break off. Is there any test data to show how bad it is?

Coooooooool. It ran without catastrophic failure. I can see this tech finding its way into electricity turbines in 2 years. Don't think it would be viable to get legacy engines with plastic blades an airworthy certification thou.

Impressive snow maker!

So here are my thoughts on the composite stage 1 blade and remember they are coming from someone with a career lifetime in gas turbine design, who would expect to go through a rigorous design verification and validation exercise. In other words, lots of design calculation and analysis, followed by lots of testing.

Oh ****! I was posting a comment on the composite first-stage blade, but finger trouble deleted the lot. It will have to wait.

I was out of town until last night but I'm getting caught up. Good to see the blades held up! I would still recommend having bonded metallic mounting firs and leading edges for long-term use, but if your production company has access to heated platens within industrial capacity presses, there's a lot of aerospace resin compounds and some trick material conversion processes that can be used in place of traditional composite resins that better tolerate heat. I was only able to build a 50 ton setup for my project, but I'm still looking at ways to get more loading into the 300 ton area to get proper amalgamation at the temperature upper threshold I'm looking for. The carbon and resin essentially becomes one solid product at the molecular level indistinguishable from their base components.

Why was the rotor and blade assembly on your bench spinning off center?

Jet wash alley has a real trench in it when it used to be flat so either the back of the engine was dropped or jet wash alley was raised but neither of those happened so I wonder

If the LM 1500 will not start without the VSV's

Didn't see anything that looked like a dyno in the video. Where was the power being dissipated?

Great test work as always at Jet City. So just thinking I know Dangerous!. Will a complete first stage of these “Forged Carbon Composite blades wind up in Southern part of Florida to do some ground runs and just maybe a flight at subsonic speed then MACH Two !! Be interesting if GE and Lockheed keep the ball rolling on this. I have kept the names out to protect the innocent ME and Jet City.

I was looking, but didn't see, and if you said, i missed it, but was there a nozzle on the back of that engine? Or was all that blast and fury just a straight pipe dumping out hot gas?