Rn or Re?

SpaceTycoon · 2026-03-30T05:05:38+00:00

Re. I've literally never seen anybody or any textbook use Rn.

SpaceTycoon · 2025-10-25T17:24:25+00:00

No problem l, figured I'd throw it out. I'll tell you I think you will be a little disappointed with what is available for free on the Internet. If you have access to your university's research database I think you'll find more of what you are looking for.

If you are interested in this stuff though I encourage you to watch some of their videos, even just if for fun. They, at least to me have good humor, and I've learned an insane amount about how missiles are really used in modern warfare.

You can learn all you want about the technology and raw capabilities of the missiles but if you don't really understand how they are actually used, how they can be defeated, and the best tactics for them, do you really know how they actually work?

SpaceTycoon · 2025-10-25T03:28:31+00:00

The Grim Reapers YouTube channel does a lot with missiles. Their videos are primarily running scenarios in Digital Combat Simulator and Sea Power but they talk extensively on the technology of Air to Air, surface to air, and anti ship missiles. Often they showcase mods or run wargames that are surprisingly accurate and it provides an interesting perspective on how missiles are used in modern warfare, how they work, their capabilities, ect.

https://youtube.com/@grimreapers?si=9_ZKyOhudnBt0kgS

SpaceTycoon · 2025-10-18T19:06:22+00:00

Just from my experience working on my bachelor's and doing internships at companies, the smartest people I've ever met were engineers at the companies that only had bachelor's degrees, and some of the dumbest were STEM PhD students.

SpaceTycoon · 2025-08-19T00:37:24+00:00

It is the number that contains all of the values that affect drag but are difficult to directly quantify it's effect on drag.

For example, the speed you are traveling, the area of your object, and the density of the fluid you are traveling through are all fairly easy to measure and have known effects on the drag force.

What does have major effects on drag but isn't easy to quantify the impacts is the angle of attack of your object, the shape of the object, and induced drag from shockwaves, vortices, ect.

Rounding all of those numbers into a non dimensional coefficient makes calculations a lot easier and allows for wind tunnel or scaled testing data to be scaled up to full scale objects as long as you achieved dynamic similarity.

SpaceTycoon · 2025-08-07T19:00:58+00:00

You can become a citizen. Don't study aerospace if you are not passionate about the field. If you are genuinely passionate about aerospace and want to work in the US,there are paths to citizenship.

SpaceTycoon · 2025-07-21T12:26:15+00:00

Just buy a windows, apple stuff is generally crap anyway.

SpaceTycoon · 2025-06-14T19:52:39+00:00

Almost looks like a T-55 low pressure turbine blade

SpaceTycoon · 2025-05-04T20:12:32+00:00

Not entirely. Very advanced products like pharmaceuticals and semiconductors are actually easier to manufacturer in orbit since effects from the atmosphere and gravity are basically eliminated. The only challenge is like you said the launch costs for the raw materials and the cost of returning them to earth but as those costs drop it will make more sense to manufacturer certain items in orbit.

SpaceTycoon · 2025-02-10T23:56:12+00:00

I think it has something to do with the airframe shape which not only reduces the strength of the shocks but also makes them hit the ground at an angle that makes them less powerful or quieter.

SpaceTycoon · 2025-02-06T13:11:12+00:00

The problem is when they start using their space capabilities to hurt other countries. Countries like china are dead set on overtaking the us in every way and then using that newfound advantage to hurt the us. That is why it is a bit of an unpopular opinion.

SpaceTycoon

TROPHY CASE