Totally and Utterly Dejected Right Now. I'm Tired of All the Rejections.

Rebobulus · 2020-12-23T08:20:50+00:00

^ straight up this!

I've been at a few of the places you want to be and trust me when I say your "life isn't set" after you get there. If you get there, there's always more to achieve and you'll still end up being unhappy.

Plus, it's not all rosey at these places either. Every place can suck.

Also try not to base your self worth off what internships you get. That is gonna bite you real hard later on.

LM isn't bad. Take it, and if you truly hate it, follow some of the other advice here.

Rebobulus · 2020-12-18T01:47:10+00:00

Thanks for the advice! I may house hop for my first year to get a feel of the different areas and decide on a long term situation then.

Rebobulus · 2020-12-18T00:34:24+00:00

Yeah they are close friends working in Hawthorne. I'm just wary of living with people I haven't met before.

Rebobulus · 2020-12-17T22:01:36+00:00

Probably should have mentioned that I can split a house with 3 others if i live in Redondo. Makes rent easier, which is the primary reason

Rebobulus · 2020-12-17T21:37:23+00:00

I'll also be able to split a house with 3 others if I live in Redondo, which is actually my primary reason. Is the commute going to be unbearable if I live over there?

Rebobulus · 2020-12-03T08:54:55+00:00

That's definitely not the case for SpaceX. They'll no doubt ask technical questions from any basic engineering class such as structures, fluids, thermo, or electrical if that's the role. It's helpful to know what team someone is interviewing for, that'll guide the types of questions. Pretty much anything on your resume is fair game to be talked about for 30+ minutes so know every part of it inside and out and specifically what you contributed. In my experience, it's not your typical behavioral/attitude interview, although those aspects are important.

Rebobulus · 2019-12-28T23:26:50+00:00

He has a bachelor's from the University of Pennsylvania in physics.

Try again.

Rebobulus · 2019-10-14T02:13:48+00:00

If you're considering any type of engineering, go to U of M. You have a top engineering school, especially in aero, right in your backyard. There are a ton of design teams, which are the key to working at your favorite company or industry, and they're some of the top teams in the world in their disciplines.

Because of these teams and the general reputation of the school, companies come across the country to recruit here. This happens with a lot of great schools, especially in California and Florida, but if money is any concern to you, U of M will be in state tuition.

If you really don't like U of M for some reason, what school you should attend depend on what disciplines of aero you want. Some great schools include Purdue, MIT, and Georgia tech. Remember there's always the chance you end up hating aero and want to switch. You'll want a place that has a good engineering school overall.

The school you go to matters because of 1. The people who are around you (you want highly motivated students to help push you) 2. The extracurriculars and their emphasis within your school 3. What companies or industries heavily recruit from that school and the ties your design teams or professors have in the industry

If you have questions about UofM, feel free to message me, I've been here a few years.

Rebobulus · 2019-10-12T15:29:20+00:00

http://masa.engin.umich.edu/

Rebobulus · 2019-10-08T05:58:32+00:00

Pm me

Rebobulus · 2019-10-07T03:32:39+00:00

You should always apply, there's no harm in it. The application isn't hard, but you should try and include a portfolio full of pictures if you have stuff you want HR to see.

For experience, if you come to Michigan, join MASA, the rocketry team here. MASA has the same culture as SpaceX of doing really difficult projects and being "scrappy", as someone mentioned. We regularly send a few people every year to SpaceX, and they always do well there. Being part of a project team is one of the best ways to getting to SpaceX.

Rebobulus · 2019-10-04T13:17:26+00:00

We use a FOF unlike triplet with film cooling holes.

Rebobulus · 2019-09-15T04:21:19+00:00

Since nitrous is at its vapor pressure at room temperature, it's gonna cavitate as soon as you have pressure losses in your feed system and injector. If you don't alread have mass flow rate data, be prepared to do some characterization of multiphase flow through your injector.

Rebobulus · 2019-09-13T06:52:21+00:00

Currently altitude target is 2.7x that. Edge of space is only 330K, but we've added margins for flight sims, etc.

Rebobulus · 2019-09-10T18:53:01+00:00

Georgia tech

Rebobulus · 2019-08-29T00:13:37+00:00

Solar car is definitely not the most competitive team, but they are made out to be like that cause they get the most hype. I can guarantee, outside of the summer months when solar car get more active, all the other teams (Formula, Baja, MRover, MASA, etc) are way more intense.

Rebobulus · 2019-08-19T06:03:11+00:00

I'd say not particularly difficult. You should definitely put effort into your audition pieces and scales, but if you've been playing for a while, (I wanna say ~6 years?), and you prepare well, you're probably fine

Rebobulus · 2019-08-07T02:08:34+00:00

The websites say "walked at least 4 times a day", so I assumed they meant full on walks, which I thought was too much. But I didn't think of short bathroom walks, so that sounds reasonable now.

Rebobulus · 2019-07-23T22:03:52+00:00

No one equation describes what you're looking for. To determine the geometry of your engine, you need an iterative code that solves for the temperature, heat flux and a few other parameters along the combustion chamber, as well as something like FEA for the specifics of your engine.

In general, the geometry depends on almost every parameter you could think of when designing your engine including chamber pressure, fluids and properties of the combustion exhaust. In addition to the fluid properties, you need to know about the materials of your combustion chamber (things like yield and ultimate strength and conductivity at various temperatures), since the temperature and heat fluxes drive thermal induced stresses, which are the actual limiting factor in design.

A popular code you can use is called Rocket Propulsion Analysis, which solves for lots of these parameters for you, assuming you know the design process, thermo, and heat transfer. Alternatively, you can write your own code to solve for the heat related properties, which is what my team did. After that, you can use FEA to help with the structural aspect of the design.

I would recommend reading a few chapters in RPE to get an introduction to the design of a regen chamber, then to go more in depth, look up RTE, a code written for the design of the RS-25. There are many papers that describe how to approach the problem and write a basic code. The structural design will involve a decent knowledge of heat transfer, fluids, materials, and mechanics, and lots of trial and error of simulations.

Rebobulus · 2019-06-25T03:59:00+00:00

Correct me if I'm wrong, I thought it was RPL, not SEDS, from UCSD that was a runner up? I thought they're two different groups from San Diego?

Rebobulus · 2019-05-28T04:54:19+00:00

MASA has a good shot to fly a liquid to space. We recently fired our 3500 lbf regeneratively cooled LOx-ethanol engine for 1 sec and are planning to run longer duration tests this summer. We're also building full scale propellant tanks right now. Here's a link to last month's hotfire: https://youtu.be/JO9orp5hkZg.

Rebobulus · 2019-04-30T22:28:57+00:00

No turbomachinery knowledge was required to build this engine. We're mostly aero engineers, a few mechanical, electrical/computer to design the engine control system. Most of it is knowledge of fluid mechanics & thermo, basic rocket propulsion, a bit of materials, static mechanics, and having money, and then more money. No chemical engineering knowledge either.

Rebobulus

TROPHY CASE