It doesn’t say no fuel, that’s disingenuous. Where does a tanker worth of fuel go in a plans wing is the question. The name callers usually are disingenuous.

Well. I’m sure that if you conduct a poll you will find that the majority of people following you all the years will agree with me that when I say you have not chosen a very good name for yourself - ProfessorJayZ would have been far more appropriate..

A couple of weeks ago, I was down my March field. I had the pleasure of seeing the Omega Air 707-368c make a nice smokey takeoff. The Omega Air birds are still wearing their JT3D-3B engines, and even with the hush kits the plane is still loud.

Noooo!!!! I’ve been watching you since I was 3 years old!!! (Im 13 years old now) i hope you have a lot of fun at your new location!!

14 years ago!. O_O I remember this video.

Interesting. Electron beam (or furnace brazed) welded blades, like the old GE turbines of the Wright 3350.

Poor fellow who proposed this idea certainly has spirit but hadn't gotten into the nitty-gritty of engine efficiencies yet, let alone all of the details of what make gas turbine systems behave as they do. The compressor is absolutely pointless in this design -- just use those electric systems to directly drive the fan! That's where the work gets done, so, in this case, you just made an electrically powered ducted-fan aircraft. Cool. Yeah. Still sadly will weigh too much on battery power to be useful for any length of time. Heck, if you want to do something like this but make it workable you could make it a motor-jet, but again, just use the ducted fan. Problem solved there too, but congratulations, you just invented a piston engine airplane but with extra steps. I don't say this to knock our thinker from 7 years ago, but just where my mind instantly goes with the idea as it was first described. Can't blame 'em for thinking though -- hopefully seeing this made them realize the amount of energy such engines operate with. I know designing my own future jet idea for a sci-fi story I'm working on has done just that for me -- helped me really understand the scale of power we're working with when it comes to these machines!

100% one of the coolest inventions man has come up with 🤘

I see Norway flag

thank you very good video,

I have used your compressor stall video for all the semesters since you first put it out. It was (is) right on point! Thank you for all you did for my students!

I think carbon blades will needs of work and shielding but one day

My family know the V 1 My dad went under metal kitchen table CROYDON short of the CITY Anderson shelters Grew up hearing it all My Dad flew a Spitfire in last 5yrs MJ 627 Me grounded through Epilepsy

As a GE 6B/7EA/7FA turbine mechanic, it's interesting to see the differences between the bigger turbines, versus these. A lot of similarities, but a lot of differences as well. Thanks for all the videos with the abundant information. It seems no matter how many years you work on these things, there's still so much more you can learn.

Respected sir, can I get your contact details. I needed some guidance from you.

Are you the person that has the Avro Arrow Orenda Engine?

You don't have to apologise You could be teaching a class not a camera Quality data

A man called audy believes injecting kerosene through the turbine blades will revolutionise the jet industry It's funny he doesn't listen I explained the problem of expansion on lighting would brake all the turbines These people I can laugh

Great content and presentation agent jz! How much feul pressure on lm1500 useing natural gas?

Thank you for all your time teaching!

damm this engine can have a second life as a musical instrument

This awesome just applied for a position as a F135 Propulsion test engineer. I hope I get it! Supporting engine testing has been the best part of my career at P&W!

J Z, you are a legend! I wish you good skill on the next venture! Thankyou for all the wonderful info you have bestowed on us thus far good sir! Xx

Don't go, please!

Hi Jayz loved your channel and insights regarding gas turbines will the patreon channel videos remain or will it be deleted ?

All the best in your new venture. I really enjoyed your videos. Looking forward to your new content.

Are those Pratt & Whitney engines?

i dont know much about engines. how exactly are you working on this? it looks beat to hell and not very operational.

Best wishes on the move my friend. Love your videos.

I think you are one of only a handful of ppl I see that understands “suction”. I’ve been telling ppl for years that piston engines do not suck in air but rather the air is pushed in. The intake manifold has a lower air pressure than the air outside the engine and that pressure difference is what causes the air to flow into the engine. Most ppl don’t seem to get that.

How do you secure the engine down for testing to make sure it doesn’t fly off?

Thats insane, imagine standing in the exhaust and you get blasted away Can you get sucked in if you stand close to the intake?

Good luck with the move.

Look forward to watching whatever you do next.

Look forward to the new vids once you’ve settled in.

To me it stand to reason with low bypass as long intake is tapped in front ,of the inlet guide vains in intake cowl inclosure. And the tap at the exhaust be taken after the last turbine disk but before the exhaust exits the exhaust pipe . High bypass engines to be fair my guess is four sightsfor taps two inside the intake mouth of intake cowl ahead the fan . Maybe half way from the start of the intake and fan . Exit taps one located before the end of the exit of the bypass duct. And the other again between the last turbine disk of the low pressure turbine and the exit of the core tail pipe . There will be two gauges one for the core and one for the bypass . J

To measure trust force like a strain gauge dosen't one end have to be fixed ?. Because wouldn't trust be a measurement work force over a set amount of distance?

combustion increase pressure but not from compresor maximum pressure but from pressure after those small holes feeding comustion chamber (with huge exhaust hole) and that increase in pressure is smaller than compresor outlet pressure.

If i didn't live in Australia, i would love to come and help you move! Im not going anywhere! Goodluck Jay!

Many thanks for all the lessons hope the new year brings unexpected success. Maybe see you at OSH this year? Going the whole week link up with us 😎👍

WOW that is fantastic. Our engineering capabilities are mind blowing. I have to wonder how much goes into bolting that thing down for test running like this..i presume you must have some big concrete foundations and steel to jeep it in place 😊

15:31 One of the functions of the fan bearing that comes to my mind would be to ‘bear’ the weight of the shaft.

Kilograms of thrust can be X-kg of air at 2Y speed or 4X-kg of air at Y speed, (1/2 * mV2 )gives the same energy of exhaust gases. but from the same energy, power is force(thrust) by distance and you can have X kg at 2Y speed = Z power, or 4X kg at Y speed = 2Z power. (speed in time gives distance, 2x speed gives 2x distance) that is a main reason why turbofan (and turboprop) are more efficient than pure jet. and that is a reason of disconnect between thrust and horse power.

So it's a spark like on a stove burner?

It's happening to all of us, buddy.

Can you do a video on the J85-15 engines on the XB-1?

When you said, "Cartridge start" all I could think of was the British Field Marshall tractors that used a consumable "glow plug," a wad of paper soaked in kerosene...I think...Anyway and also something similar to a shotgun or rifle cartridge. The glow paper was fitted to a threaded cap and the cartridge to a special threaded cap with a firing pin. You then set the crank to a starting position, take a mallet or hammer and you then strike the firing pin, et voilà, the engine springs to life.

A competitor bought your properly and is moving in? That’s not cool.

That is a very big jet engine

Almost never comment on youtube, but I feel like doing it today. Best of luck on your future, I've learned a lot watching again and again your videos. Maybe some kind of instruction videos for A&P shops, Flightschool woukd pay you well. Thank you°