Screaming TF39s on the C-5 Galaxy 

Agreed!

I agree wholeheartedly.

Agreed. It really sucks I'll never hear this sound in person again.

Absolutely 💯 correct. 😢

the only thing left we have with that sound are the jt9d 767s ☹️

besides the 777s with Ge90s

😂

Since 2018 every C5 Galaxy has been powered by the F138, which is US military designation for the General Electric CF6-80C2 turbofan.

The military isn't interested in engines that howl loudly. They care about range, reliability, usability. In fact, they prefer quieter engines as it is easier to stay incognito. I understand that these engines had a unique sound... but they're dinosaurs and their usability had run dry. The CF6 is a much better engine.

None whatsoever!!!!

Exactly. A big plane like that needs a big sound to match and the TF39's were it. I hate that I'll never hear it in person again.

My father was stationed at Travis AFB California, and worked on these engines in the 80's. This is pure nostalgia from my childhood.

The new engines aren't as sexy sounding as the TF39 on the old Galaxy.

You're welcome DeBo, thanks for dropping by :)

Same for me. Lived in K-town and heared that planes as a child every night before sleep when they were heading for landing in Ramstein Airbase. This whining sound is part of my childhood and makes me shiver everytime I hear it - till today.

1:49

now that's livin the dream! hahaha 2 thumbs up!

Why is he doing this?

the owner of the C5 ticked the box of the panoramic sunroof option!

@@ralphm3791 he forgot to dry hair after cleaning and this is the fastest way

Awesome. What a machine to work on! Appreciate you dropping by 👍

You're more than welcome :)

I would buy one just for those engines.

@@newtonpeart8573 we need some billionaire like Bill Gates to buy a couple and resurrect them with TF-39 engines for airshows.

Ahhh man thanks for sharing the memories 😎 I miss that sound a lot 😥

You're welcome Rob 👍

Ha ha, awesome, thanks for sharing. Great to hear :)

Wow! That had to have been interesting being a passenger on that plane! I never knew they had an upper deck for passengers. Isn't that called Space A flights when civilians fly on a military aircraft? And why were the seats faced backwards?

Glad you enjoyed it, thanks for the comment 👍

You're welcome man!

Awesome :D

Thanks for sharing the memories! Such a great engine sound on these older models 😎

😢

Thanks very much bud. It’s a sound I miss, the M models just do not sound the same :(

Yes indeed! As I said, I agree with you. The M models certainly will never have the same impact as both the A and B models did. They were legendary as far as we were concerned!@@UKAviationMovies

Indeed! Well spotted 👍

Nice 😎

Thanks Chris :)

Wow, so cool! 😎

Thanks bud :D

Ha ha awesome. Thanks for dropping by, great to hear your experience of working with FRED 👍

Phew, that's a pretty long flight. Really interesting to hear how it is in the air. I love the idea of "flying on a living room couch" :D

@@UKAviationMovies: It WAS a long flight but the box lunch (white cardboard box containing one mystery meat sandwich, an apple, a candy bar and some milk) and a good book helped pass the time. So did a pit stop in Alaska, but it was seriously cold there and my summer tan 1505 uniform just didn't cut it. After we landed in Charleston and I boarded a commercial DC-9, the Galaxy taxied past my window. It blocked out the sun. Oh.....I almost forgot the part where we had to wait for 6 hours in the Yokota Terminal while the C-5A's wing spars were checked for fatigue cracks. But overall, a pretty good experience.

Mmmm mystery meat sandwich 😂 definitely sounds like a trip to remember, not sure how I’d feel about wing spars being checked for fatigue cracks before jumping onboard though! 😳

Thanks dude! Shame they're all gone :(

how much thrust does one tf39 have

@@mikepruett1745 around 40000 lbs of thrust.

Agreed! 😍😍😍😍

Love the KC-10!

Thanks :)

Wow awesome. Such a great sound, and an aviation icon 😎 Thanks to your dad 👍

Thank you for visiting ;)

😎😎😎

Thanks for dropping in 👍

JT9D engines that early 747s & 767s had definitely sound quite similar to the TF-39!

😂😂😂

I’ve got to agree. I miss the sound of the old TF39s :(

Love those engines 😍😍😍

Sorry brother :D

Nathan Blalock the new ge9x is quite a beast for a commercial jet in fairness though.

It's compressor. You can find similar sound with Trent 800

There are holes drilled into the blades to reduce weight. It's like blowing on a bottle top, but at supersonic speeds.

@@randompheidoleminor3011 oh cool

Actually theres a few reasons why the TF-39 engines had a very unique sound. The front fan is actually more like a half stage, with a small fan in the middle and stationary guide vanes surrounding it to propel the air towards the second fan behind it. With a bypass ratio of 8:1 you would think that it would be a lot quieter, but with it being the very first high bypass engine, they hadn't quite figured out how to mix the bypass air and hot gasses coming from the core like they do now to dampen the noise. Plus nacelle designs are much different now. On the CF-6 engines that were born from the TF-39 the first generations had that stage an a half design, but the "half" stage was put behind the fan in the front, which helped with the noise a little better. The reason you hear the buzz saw sound from the engines at full throttle is because the tips of the fan blades are moving at super sonic speed.

Basically the turbine blade is breaking the speed of sound.

FRED of the skies 🤣

I really miss the TF39 noise too :(

and there's 2600 lbs of paint alone on that bad boy.

100% agree

Better RR Trent 800 on 777

TF-39 is the Original Engine. PW copied all the secrets, leaving behind the N1 Fan, thus, ending up with JT-9D.

YES I caught that also (Y) 😎😎👍