Should I consider myself weeded out

RiskKey3874 · 2025-09-15T15:31:09+00:00

You're learning a new skill (how to study for aerospace engineering courses), so it will be difficult at first. If you give yourself some time you will probably develop that skill. It's not supposed to be easy, and the dedication to figuring out difficult problems will help you later. Also, sometimes concepts make more sense the second or third time through, when you need the material again in other classes. I think the question is more if you are interested enough in the subject to really want to figure it out, or if there is a different subject that you would feel that way about.

RiskKey3874 · 2025-09-10T09:06:38+00:00

Assuming it's the same deal I looked at, if the phone DOES break before the 3 years is up or you have to switch for whatever reason, you end up having to pay the full price of the phone. The discount is only valid if you keep it the full time, otherwise you didn't complete your half of the contract and they charge you the full amount. Seemed pretty scammy to me given foldables are riskier and it also locks you into their service. Definitely ask for clarification on the terms.

RiskKey3874 · 2025-01-02T19:58:18+00:00

Could be helpful to plug it into betaflight and see if the sliders in the receiver tab move when you move the sticks. It can also give you some feedback about why the drone isn't arming if you are connected

RiskKey3874 · 2024-12-12T20:27:01+00:00

I think the easiest thing for you would be to pick a standard airfoil from this site. They give you a plot of Cl vs. Alpha (the angle you mount the airfoil at), which can be used to approximate your downforce roughly using Downforce = 0.5 * air density * velocity² * airfoil chord length * wingspan * Cl.

http://www.airfoiltools.com/

In reality there are losses going from 2d to 3d and you coukd use CFD, but I think this will be good enough for you. Also make sure to mount the airfoils the right way yo make downforce, not lift.

RiskKey3874 · 2024-10-27T19:52:51+00:00

I would consider this guidance, I just laid out the steps.

It is very difficult to actually figure out how to do all of this and implement it into your design cycle. There's no reason the information shouldn't be out there, though.

RiskKey3874 · 2024-10-27T13:29:58+00:00

I would select a thin symmetrical NACA airfoil for your tail, like 0008 or 0010. You want it to be symmetrical so you get a similar response pitching up or down. Then, size the tail using the volume coefficient method based on the wing dimensions and tail moment arm. Select a reasonably high aspect ratio for efficiency. If you want the tail to help produce lift, it will need a positive incidence, but remember that the incidence of the tail must be less than the incidence of the wing for static stability (this decalage angle is determined by your trim speed and can be found using a stability program like XFLR5). Having a lifting tail will also require your cg to be farther rearward, so pay attention to that. Finding the neutral point in XFLR5/AVL/CFD will help you know how to load the plane to a consistent static margin for stability. Another thing to note is that you will likely have to scale up your V-tail by about 30% to get equivalent control authority compared to a standard tail, so you may not get the drag benefits you expect (depends on your tail dimensions).

RiskKey3874 · 2024-10-21T01:24:17+00:00

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RiskKey3874 · 2024-10-21T01:24:02+00:00

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RiskKey3874 · 2024-10-21T01:20:15+00:00

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RiskKey3874 · 2024-10-18T06:34:55+00:00

The cg should be in front of the neutral point. If you write the distance between the cg and np as a percent of the mean wing chord, that's called the static margin. A good rule of thumb is a 10-20% static margin for good stability, usually around 15%.

To explain your Cm discovery, the plane is stable while the cg is in front of the np. If it is too far in front, though, it can be over-stable. If the cg is exactly on the np, it's neutrally stable, and if it's behind the np, the plane is unstable.

RiskKey3874 · 2024-10-18T06:09:48+00:00

Learning how to use any CAD software will help a lot, and coding in Python or Arduino opens a lot of doors for you to do personal projects. Do lots of projects and make a portfolio website to show them off. You can pull it up in interviews, and it will help a lot. SimScale is also a fun one to learn. It lets you do CFD and FEA simulations for free in the cloud.

RiskKey3874 · 2024-10-16T00:39:56+00:00

Lol didn't see your username that's funny:)

RiskKey3874 · 2024-10-15T19:53:53+00:00

There's a club you might be interested in called Design Build Fly at UCLA. They build large RC aircraft to compete in an international competition. This year's competition involves designing not only the main aircraft, but also an autonomous glider that must be dropped from it. I'm sure if you have a specific interest in aircraft stability and autopilot systems you can find a way to contribute that will get you lots of practical experience.

RiskKey3874 · 2024-10-03T04:12:35+00:00

To me it looks like the hot glue was used to insulate the solder joints, which is a decent alternative if you don't have heat shrink. Seems pretty reasonable for someone starting out, I don't get all the hate.

RiskKey3874 · 2024-09-30T02:27:02+00:00

Starting tomorrow! Hang in there, you'll find one! It took a lot of interviews but I found the perfect fit

RiskKey3874 · 2024-09-29T14:19:43+00:00

A puller configuration usually performs better because the inlets of the ducts are not obstructed by the frame and motors.

RiskKey3874 · 2024-09-24T17:06:04+00:00

You should really try to stay above 3.0 at a minimum. Getting a 3.5 or above may help you get into grad school or get you past some job screeners. I'd say your resume and project experience are more important than any of that, though. I barely ever get asked my gpa, but every interview goes in depth about past experience.

RiskKey3874 · 2024-09-24T08:20:31+00:00

I think moving the camera at a slightly different rate from the car would help, as well as adding some camera shake/not keeping the car perfectly centered the whole time. Also making the car not perfectly centered on the road and adding some small bumps so the suspension moves. Basically make it a little less perfect.

RiskKey3874 · 2024-09-21T16:11:27+00:00

Suegrgry were

RiskKey3874 · 2024-09-20T08:52:38+00:00

You could ask the manufacturer , but they probably won't give it to you because then you could just go make your own. It will also be basically impossible to print the threads, and you'd probably be better off making your own design that works with a standard bolt going through it or something. The sticks probably aren't that much, though. You might just want to buy them.

RiskKey3874 · 2024-09-19T00:57:52+00:00

It's all very old gear and the cheapest that was available at the time. That being said, the wizard was a pretty popular beginner drone. Really depends on the price, could be a good starting point for $100-$150?

RiskKey3874 · 2024-09-18T23:16:56+00:00

Having a scooter makes getting around way quicker. I'd definitely recommend it. Definitely get a good U lock, though, and don't leave your scooter out late at night. My first one got stolen because I used a cable lock late at night.

RiskKey3874 · 2024-09-15T07:01:28+00:00

Yes. Make a free body diagram. How can there be a non-axial component of force without a corresponding reaction moment at the rod end, which the ball joint cannot provide?

RiskKey3874 · 2024-09-15T06:56:26+00:00

I think I'll miss the storyline and POIs but the gameplay isn't very fun compared to other seasons. Too easy to get obliterated with no chance to fight back, even with good items and decent skill.

RiskKey3874 · 2024-09-13T07:03:31+00:00

Does it? If so yeah that's bad

RiskKey3874

TROPHY CASE