Alex Marrone

Aero/Mechanical engineering student

[Alex Marrone @AlexMarrone]

@leap_71 @HBDAdditive2015 Let’s hope it doesn’t melt itself this time haha 🤣

[Alex Marrone @AlexMarrone]

@nealteamgibson @its_sahilio @BrooklandsMuseu Yeah that’s sorta what I was thinking. Pretty huge extrusion and needs to be precise. Hence why machining is just sometimes the move in aero. They do mention in that website that they used rr58 extrusion but it’s not clear where.

[Alex Marrone @AlexMarrone]

@leap_71 Can’t wait to try printing it myself! Beautiful internal geometries.

[Alex Marrone @AlexMarrone]

@its_sahilio @nealteamgibson @BrooklandsMuseu Yeah it seems to be. Idk where he got machining from. Still wouldn’t be the craziest shit considering some of the stuff that gets machined for aerospace.

[Alex Marrone @AlexMarrone]

@Aelthemplaer If the uncertainty bars measured what you want them to measure, then they would be infinitely long. It’s an interval which you can claim that the true result is in with some amount of confidence, typically 95%. The measurements converge as time goes on, why focus on older ones?

[Alex Marrone @AlexMarrone]

@dirtorbust @robertdorazi @MichaelBuckelew @LittleBrainz @blueorigin Alright you really don’t understand what’s happening huh. I forget how little ppl understand about orbital maneuvering. For this, all you need to know is that to get to mars you need to speed up then slow down. The aerobrake takes advantage of the atmo to slow down, saving fuel

[Alex Marrone @AlexMarrone]

@dirtorbust @LittleBrainz @blueorigin So, we need a material that can withstand those environments. BO is claiming they can do that. But sadly, we are deviating too far from the guys original question, which was pretty much asking how drag works. Hope this helped, probably not since you’re illiterate.

[Alex Marrone @AlexMarrone]

@dirtorbust @LittleBrainz @blueorigin You seem to be illiterate. No prob, I’ll try to spell it out for you. The post asks how a deployable aerobrake could use planetary atmospheres to slow down. This is called drag, but as we all know from compressible flow, that’s gonna create a lot of heat and pressure from shocks—

[Alex Marrone @AlexMarrone]

@MichaelBuckelew @LittleBrainz @blueorigin Sure for the final landing obviously you use some sort of chute/rocket combo. We’re talking about decelerating from interplanetary speeds tho. Different things.

[Alex Marrone @AlexMarrone]

@LittleBrainz @blueorigin You gotta speed up from the moon to get to mars, that takes fuel. Then you gotta slow down when you get to mars, which would take fuel, but if we are clever, we can use the atmosphere of mars itself to bleed off our speed, thus saving fuel mass, allowing for more cargo.

[Alex Marrone @AlexMarrone]

@qikka2888 @jimbelosic He explained in another post that you can’t do that for production since it will change the material properties

[Alex Marrone @AlexMarrone]

@AJamesMcCarthy It’s ammonium perchlorate blasting out his ass not percholate

[Alex Marrone @AlexMarrone]

@grantbelden @ReasonsTax Yikes, no reply, who could’ve guessed

[Alex Marrone @AlexMarrone]

@RKLB_KevinJames @cosmictylxr @RocketLab @astromatthewt @PhazzeeYeehaw You’re simply wrong, this seems extremely reliable

[Alex Marrone @AlexMarrone]

@CapybaraCountry @ettingermentum Extinct

[Alex Marrone @AlexMarrone]

@GatorsDaily Based and good for the gators! 🐊

[Alex Marrone @AlexMarrone]

@luke_leisher_ Just to play the devils advocate, is it possible he’s referring to the white puffs of smoke and correctly summarizing that they are from the RCS after some thought to remember the name?

[Alex Marrone @AlexMarrone]

@Shooger38 @nocontexthousem I think that’s kinda the point… house is an ass, you aren’t supposed to enjoy his morals

[Alex Marrone @AlexMarrone]

@ajamespala @SpoxSpace Didn’t it use hypergolic propellants to minimize that risk?

[Alex Marrone @AlexMarrone]

@smmmmss2 With that said, I doubt that spacex will end up the same way that Tesla has

[Alex Marrone @AlexMarrone]

@smmmmss2 I think that the reason spacex has been able to grow this “near monopoly” is due to Reusability, I don’t think that anyone can disagree with that. So if other companies begin to develop Reusability, and with different design philosophies (neutron), it could shake things up.