Aerospace Composites: carbon fiber, glass fiber and Kevlar in aerospace applications.

[@jimharvey7698]

My compliments on an extremely well done presentation of a complex & highly misunderstood subject. Having worked the X33 program you are so, so correct. Keep up the good work.

[@terranspaceacademy]

Thank you so much Jim! We really appreciate your saying that!

[@4n2earth22]

Excellent presentation. We are off and running in the race to space. Wait, we ARE in space already! It's the new addresses we are reaching for that makes it all so amazingly exciting. Please keep up the great work!

[@terranspaceacademy]

Thank you so much!

[@justinflynn3804]

Thank you for making a concise video explaining the beginnings of composite materials. I feel like I have a better understanding of both what they are and a glimpse into the history of were they derive from.

[@terranspaceacademy]

You are most welcome and will probably love today's lesson!

[@scottthomas3792]

Concise and well presented video. The old Corvettes had a thin plywood form under the fiberglass. I'd forgotten about the X-33...

[@terranspaceacademy]

That's right! The X-33 was cool but single stage to orbit will always have limited payload, until we get nuclear, or fusion, or antimatter! Love the antimatter.

[@kennyg1358]

I hope you have a million subscribers soon. We have a solar system that needs exploring and your videos are an excellent introduction to the knowledge the world needs.

[@terranspaceacademy]

Thank you so much Kenny!

[@Build_the_Future]

I hope you can do a video on calculating orbits, understanding orbits, rendezvous, and docking orbits in greater detail.

[@terranspaceacademy]

That is an excellent idea. I will put it on the list :-)

[@creightonfreeman8059]

When you were stating the thickness of fiberglass, aramid, carbon fiber.....perhaps you were stating some specific application thickness of multiple plies? With the possible exception of glass mat a single layer is only a fraction of a mm thick. The specific thickness depends on the weight per square yard (or sq. meter) of the fabric. For example it might be 3.0 oz., 5.0 oz. or 7.0 oz., fabric. Obviously the 7.0 oz. is thicker than the 3.0 oz. For example 3 oz. E-glass is 0.0046" (0.11684 mm) thick, whereas 7.5 oz E-glass is 0.0107" (0.27178 mm) thick. Even super heavy duty 40.0 oz. E-glass cloth is only 0.98044 mm thick. It takes multiple plies of material to get a product a few mm thick......

[@terranspaceacademy]

I’m pretty sure there was supposed to be a point in there :-) thank you for catching it. 0.10mm

[@Anon-s8n]

@@terranspaceacademy I was about to comment that I have never seen 8mm diameter carbon filaments! 😳 pesky metric system eh? 🤣

[@AviationAustin]

This is a great intro video to composites very well done. 👏

[@terranspaceacademy]

Thank you very much!

[@evecastanon789]

Great informative video. Easy to understand and well presented. Thank u.

[@davidpeter735]

Nice video. Looking forward to learning more and applying it to my next awesome career in Space robotics.

[@terranspaceacademy]

A very awesome choice of career :-) huge potential.

[@lorriecarrel9962]

This is top notch,good job

[@terranspaceacademy]

Thank you!

[@TheHa97]

Great Intro, thanks a lot.

[@terranspaceacademy]

Glad you like it!

[@vraeleragon7211]

Great video! I learned a lot. Thank you!

[@terranspaceacademy]

Glad you enjoyed it!

[@coeniebre]

Basalt fibre, cost benefits ?

[@terranspaceacademy]

Basalt?

[@bartoszmanek6523]

Mate, sorry to point it out but you got the units of fiber thickness wrong :/ "8mm thick"... i think it was supposed to be micrometers, microns or something?

[@terranspaceacademy]

I did indeed... I had abbreviated with just mm instead of mu-m and read it as millimeters instead of micrometers. I write and edit these but when I'm reading them to narrate I don't think too hard about what I'm saying or it can make the speech halting. Totally blew past that one. That would be a rope I'm sure :-)

[@rkalle66]

@@terranspaceacademy My hair stood on end as I was watching the video messing up with millimeter insted of micrometer (micron). To get a feeling: The typical thickness of plain vanilla copy paper is .1 mm or 100 micron. That is a package of 500 sheets adding up to 2".

[@radhakrishnannair2143]

Informative 👋👋👍

[@terranspaceacademy]

Thank you 👍

[@davidrawley4461]

The WK2 and SS2 are fully composite structures, not just aero components. e.g. no internal metallic frame, it is fully composite

[@KyleDB150]

3:55 every "millimeters" should be "micrometers" (microns)...

[@terranspaceacademy]

Indeed. I remember that. Ropes instead of threads I guess :-)

[@kingothesea1]

Funny you mention Virgin Galactic, I just got hired there for a composite tech position and was brushing up on my skills and came across this.

[@terranspaceacademy]

Congratulations Ethan! We hope it helped. Please stay in touch and let us know how things go! Spaceship 3 is beautiful and we did a lesson on long term VG prospects... let us know what you think.

[@kingothesea1]

@@terranspaceacademy Hey thanks! Today is day numero uno, your video definitely helped. I will definitely stay in touch and let you know how thing go in as much detail as I am allowed to provide. Just hope my carbon skills are up to snuff!

[@nukebarbarbarian3735]

Wow great video

[@terranspaceacademy]

Thank you very much

[@cosmic_AliAbdul]

I'm thumbs up number 50 😁🤘🏾🎉🎊🎉🎊🎉🎊🎉🎊🎉🎊🎉🎊🎉🎊🎉🎊🎊

[@terranspaceacademy]

Thank you very very much

[@humanity1367]

I think you made a mistake in the temperature that Carbon fibers can resist, you said it is 200 degrees centigrade but the correct information is about 3000 degrees.

[@terranspaceacademy]

In oxygen? I don't think that's accurate but I'll double check...

[@terranspaceacademy]

It looks like most are limited to around 100C which was my assumption, but specialized carbon fiber reinforced carbon matrix composite can tolerate temperatures above 2000℃. Thanks!

[@mikecrane6096]

8mm? That's as big as a pencil. Are you sure you didn't slip a decimal point or two?

[@terranspaceacademy]

I did indeed... that would make a cable. I didn't have a micrometer symbol after I researched and wrote the script so it was just "mm"... my bad.

[@thomasciarlariello]

See "High Performance Composites" periodical

[@terranspaceacademy]

ok

[@2MilMil]

Pretty sure fibreglass doesn't have 300 GPa strength otherwise we'd be taking elevators directly to space.

[@terranspaceacademy]

I'll pull an Erkle... "Did I say that?"

[@thomasciarlariello]

See Xcor Lynx cryogen valve patent

[@terranspaceacademy]

thanks

[@vigamortezadventures7972]

They should of used metal hydride for hydrogen tanks

[@terranspaceacademy]

metal hydride? Isn't that a little explosive? Like AlH2 etc...

[@marknroll5775]

6:50 What curvature? The earth is flat!

[@terranspaceacademy]

Yes of course! Joking I hope :-) You are joking right? With all the reality denialism going on I'm never sure...

[@marknroll5775]

@@terranspaceacademy yes it was a joke =))) By the way, I appreciate your work, well composed videos!

[@terranspaceacademy]

Thank you so much!!

[@archangelliii2536]

As usual, bureaucrats and politicians screwing things up. Good presentation. Perhaps Elon Musk could run for president?!!! NO WAY! 😁

[@terranspaceacademy]

Sadly like Schwarzenegger he was born outside the United States :-)

[@archangelliii2536]

@@terranspaceacademy Ironically he would do a much better job than the current occupier of the White House in my humble opinion. Then again...who wouldn't?