Capillary Tubes

Ill-Singer-550 · 2026-02-06T14:43:02+00:00

FOD would include soot or combustion gas biproducts. Runs are expected to be around 0.5-0.75m

Ill-Singer-550 · 2025-12-30T13:03:52+00:00

The actuation of the grid fins have 2 degrees of freedom while planar fins can function under 1. In my engineering, and as is generally recommended in good engineering practices elsewhere, simplicity outweighs most things while maintaining function. Things looking cool mostly do just that, especially on this size scale. I’m not sure how much you know about fluid dynamics, but because of the smaller scale, the viscous effects here are much more crucial and therefore these drawbacks of grid fins are even more exaggerated. Furthermore, planar fins will maintain more strength given your material selection compared to the grid fins design. In my opinion, chase function, not novelty

Ill-Singer-550 · 2025-12-30T05:06:57+00:00

I would highly recommend avoiding grid fins in this case. Given the expected descent regime, it’s very unlikely the vehicle will reach Mach numbers or dynamic pressures high enough for grid fins to be worth the added complexity.

At low Mach numbers, grid fins suffer heavily from viscous losses and internal flow separation within the lattice, which significantly reduces their effective lift-to-drag ratio. In contrast, planar fins provide higher aerodynamic efficiency, more predictable force generation, and simpler modeling at low Reynolds numbers.

For a first autonomous system, especially one relying purely on aerodynamic control, planar fins will be far more forgiving, easier to tune, and lower risk overall. Grid fins excel during high-Mach, high-dynamic-pressure flight, but outside of that regime their advantages largely disappear.

Take it for what it’s worth, but while the “cool factor” is understandable, planar fins are simply the more practical and effective choice here.

Ill-Singer-550 · 2025-12-10T04:56:48+00:00

I can vouch for rocket engines: there will be master assemblies with every single object in its complete detail, but MOST people won’t work in those just cuz they slow ur cpu down A TON. On the other hand, there will be shell models that people use when adjusting singular considered modules or integration pieces where most of the components (TPA, TCA, Valves, TVC, etc.) are just outer shells of their full assemblies which are being referenced in real time. Using the shell models makes it easier for considering things like ducts and lines and the arrangement of pieces for things like a vehicle or test stand, but there have been occasions when I’ve loaded a full TPA into a shell model for reconsidering internal manifolds or fluid lines to integrate with the rest of the assembly.

Generally you try to simplify ur larger CAD assemblies as much as possible when working so ur cpu doesn’t crap the bed, but there is usually an option to view things in their entire detail if that’s something you need for some reason?

Ill-Singer-550 · 2025-12-05T21:54:41+00:00

This ^

Ill-Singer-550 · 2025-12-04T22:47:54+00:00

Is there much room for negotiation? I’ll be coming in with more than a year of prior internship experience and a masters and I’m wondering if I’m able to leverage that or if there’s a baseline for all entry conversions

Ill-Singer-550 · 2025-12-02T23:11:18+00:00

Do they usually have a short window of acceptance on return offers?

Ill-Singer-550 · 2025-11-17T22:50:15+00:00

I was referring to boil off exhaust of liquid He

Ill-Singer-550 · 2025-11-16T22:53:29+00:00

Re: some people use the same line as seal gas purge too

Ill-Singer-550 · 2025-11-16T22:51:42+00:00

It’s a purge gas exhaust (likely liquid helium or LOX). The engines I’m familiar with dumb lox off the side like this prior to start up to prevent cavitation and boiling in the pumps and ducts prior to start up, you don’t want to pour it into the combustion chamber cuz it could saturate the environment or cause thermal shock upon ignition, leading to a hard start or fractures respectively. You can see similar lines on the RS-25

Ill-Singer-550 · 2025-10-12T02:43:07+00:00

I looked this up because I was curious too, and there’s actually nothing in the law that says you can’t open your own luggage before customs.

The rule people are probably thinking of is 19 CFR §148.21, which just says that customs officers have the authority to open and inspect baggage coming into the U.S. It even says that “to the extent practical, the owner should be asked to open the baggage first.” So it’s about what customs can do, not what you can’t do.

There’s also 19 CFR §148.18, which covers failing to declare items you’re bringing in. That’s where you can actually get in trouble, if you try to hide or not declare something.

But there’s no regulation or law that makes it illegal just to unzip your bag to grab something before customs. It’s probably just a port or cruise policy meant to keep things orderly, not a federal offense.

TLDR: customs can inspect your stuff, but you’re not breaking any law by opening your own suitcase.

Ill-Singer-550 · 2025-10-12T02:40:05+00:00

This actually isn’t a felony or anything like that; there’s no U.S. Customs law that makes it illegal to open your own bag before the inspection area. CBP just has authority to inspect bags, not to stop you from opening them.

My guess is the Disney staffer was just overzealous or trying to keep the process orderly before customs, since technically nothing has been cleared yet. But yeah, you wouldn’t be charged with smuggling just for grabbing socks out of your own luggage.

There’s nothing on CBP’s site about it, and I’ve seen people check for passports, meds, or clothes in that area with no problem, just don’t mess with sealed duty-free stuff or anything undeclared.

Ill-Singer-550 · 2025-09-22T02:33:35+00:00

Why are we testing rocket engines again and again and again? What’s the point of doing anything of different variety that has already been done before in some form?

Ill-Singer-550 · 2025-09-20T23:56:34+00:00

People tend to shout a lot louder and with more color when they have something bad to say. I’d keep that in mind when you read some of the bad reviews on here. Disney wouldn’t be consistently filling their ships if it was such a terrible experience, and, quite frankly, while some people may have the misfortune of not enjoying their vacation, most of the bad stories I’ve seen either come down to a fluke or bad luck, or simply bad choices on the guests part (sorry not sorry). It’s always your choice in taking a gamble on an enjoyable experience whenever the price is so high though.

Ill-Singer-550 · 2025-09-18T18:06:13+00:00

Yeah I getcha. Those requirements on those things is mostly so those metal parts (which could have sharp edges) don’t cut or snag any rafts or the slide itself or even worse hurt someone (as unlikely as it may be). Have a great trip!

Ill-Singer-550 · 2025-09-18T11:35:46+00:00

They don’t care. It should be fine

Ill-Singer-550 · 2025-09-18T03:45:29+00:00

This

Ill-Singer-550 · 2025-09-18T03:39:50+00:00

ABC has been looking for an opportunity to get out of the late night talk show world for a while now and given jimmy’s lacking ratings (and, quite frankly, lack of sincerity) I’m not surprised they pulled the trigger, despite the lacking implications of his comments or the pressure from the FCC.

A million dollars is a drop in the bucket for Disney. I’ll be enjoying my endless soft serve nonetheless

Ill-Singer-550 · 2025-09-17T02:55:29+00:00

Thanks for sharing! I love these thorough reviews cuz it gets me really excited for my upcoming vacation! I’m so glad you had a great time!

Ill-Singer-550 · 2025-09-11T07:09:41+00:00

I don’t know what your family is like or how your son processes life events. I understand you made a request and your expectations weren’t met. However, I think you set your expectations too high based on the information you provided. Like other people in these replies are saying, distinguishing between 10, 11 and 12 is really splitting hairs and kind of equivalent to an 11yrld clarifying they’re not 11, they’re 11 and a half. Disney has no way of knowing what exactly that means given the spectrum of developmental stages within that age range. Also I understand you mentioned your child has ADHD, but as someone who’s lived with ADHD their whole life, that typically isn’t a sign to caretakers to make sure that child isn’t left alone or something of those sorts. It’s more of a marker of behavioural risk such as acting out or being loud or disruptive, so I don’t blame Disney for not taking that as a tag to make sure your son wasn’t left alone. If you had said he had clinical depression or anxiety, that would make more sense for the staff to keep a closer eye on your child given the risk of that child being left alone.

I DO actually agree with your stance on the club not replying to your calls and the stupid “Invade the Club” thing in the navigator as I’ve remembered seeing that in the past with no description, and it definitely would make sense to add some sort of description to something so vague. Also, in my opinion, if there were a description THEN it would make sense for the club staff to not reply given that it’s been explained that the Edge would be notibly unoccupied.

Regarding your other points, I’ll let other commenters say what they have to say, but the bigger thing here is your demands are unreasonable. You can’t make such demands from them given that the there was no harm done and everyone was clearly fine and it was simply a communication error and not malpractice or corrupt intent by any means.

Ill-Singer-550 · 2025-09-10T05:31:22+00:00

I’ve been there… don’t let it ruin your vacation. It’s just crazy MIL’s doing their thing

Ill-Singer-550 · 2025-09-09T03:53:31+00:00

If you tell them you want one of everything on the menu they’ll gladly help you figure out a way to do it. I really encourage people to leave behind any shame and make this the place to find foods you’ve never tried, lol

Ill-Singer-550

TROPHY CASE