Supersonic Aerodynamic Control

That red curve...always speechless watching your videos. Such a brilliant young man.

I don't know where you are getting your Aerodynamic Theory from, but it could Not be any more Wronger.
Not holding your hand for this, learn it yourself.
Clues. Always Odd Never Even, Three trumps Four but 6 is better.
Compare the Eurofighter to the Spitfire. NASA has the same issues.
Or, ignore all that, and install three giro's.

F16`s are supersonic , Therefore have supersonic aerodynamic control , get an education.
The F111 was supersonic LMFAO, you do know its 2024 not 1975

I think it would be easier to use a reaction wheel.

Send it to ukraine ❤❤🇺🇦❤️❤️

You should try reaching orbit

Im generally curious if you could retrofit an insta360 camera inline with the rocket body to counter your rotational footage.

I personally switched to their cameras for snowboarding footage for stability including when I flip down a mountain side.

YT

It'd be cool to see a comparison of the simulated footage and actual footage on the next flight, just to see how well they match up

If you do the transonic regime video could you use the Miles M.52 story of how they overcome shockwaves forming and moving back over the horizontal stabilisers of transonic aircraft, moving aft as velocity increases, reaching the elevator & pushing down on hard causing aircraft to lock onto a death dive with forces pilots can't overcome.
Then how Miles designed the all moving tail to cure this (Mach 1.38 stable, level rocket powered 33.3r% scale model), the British government pulling the plug, forcing Miles to give all design data to Bell Aircraft enabling them to cure the transonic dice to let the Bell X-1 limp past Mach 1 to Mach 1.06 with Miles' all moving tail.
I know it's not a rocket but it explains a feature of transonic flight, the early formation of rearward marching shockwaves as velocity increases and the way we cured it but in the end it benefitted Bell, not Miles.

odd question, but is that software for visualizing the flightdata (or I assume instructions, presets, etc. for existing software) on your patreon/open-source?

Any chance the data you are getting at the sonic/transonic boundary are related to MaxQ like SpaceX and NASA have to deal with when they approach that boundary?

I’m new to the channel, have you ever tried gyroscopic stabilization? Maybe spin up a flywheel

Hey Joe, please be careful if you decide to build a device the gives anybody this type of control and then sell it. I feel like you are on the verge of creating an incredibly cheap guidance system. Hell, you might wanna think about patents if you havent already.

Seems to me that you're making things unnessarily complex.

You dont want to control a rocket. You want a rocket that DOES NOT MOVE. No roll, no pitch, and no yaw.

Gyroscopes.

Later on, if you do want those things, add reaction wheels or modulate the gyroscopes to induce a torque on the rocket body. Use machine learning to train the avionics control software in a simulator.

You may want to keep the gyros at the CG of the rocket as it moves during flight. If that's more-or-less predictable, you can have a time-based system slide the gyro assembly forward as needed using linear actuators if needed. Hell, a properly tuned spring and damper may be sufficient.


You may even be able to get this rig to fly without any of those drag-inducing fins.

Transonic video yes please.

For problems where the physics calculations are too expensive, why not build a virtual physics environment with a model replica of the rocket and let it train on it with random noise until it gets better at it?

Hey what's so hard about controlling a rocket at transonic speeds? I'm just totally spontaneously asking out of my own genuine curiosity

I just want to go up - Sounds wrong too LOL~~ Attractive devices ftw!

please button up your bald chest.

Why don't you just let the rocket rotate at high angular speed and then split the video with the rotation frequency to obtain a low rate 360° stabilized view in every direction?

Control Surface in fin?

I would think you need increased mass on the vehicle for increased stability.

a vid about transonic and supersonic regions would be sick!

why not induce a controlled spin then use yoyo-despin to remove it when it's decelerating or right before apsis?

Hi! Great video as usual, offtopic: What do you think about these crazy fast cold war Sprint anti ballistic missiles?

I was fully expecting to see you design a milled micro grid-fin system to get you through the transonic regime and beyond. I'd love to see a vid about the deep and dirty maths and simulation and coding

More on transonic please!

Love it! This is why I love engineering. There's always something you did not think about and finding the solution can be the most fun part. :D

Want to know transonic

Spin can plus canards is the simplest option.

STOP MOVING THE GRAPHS!

Seriously... Just give the maths to me... I don't want to be a dick, but just let me work it out... Please?

Way cool. So stoked every time one of these videos hits my feed, thanks for doing all this!

why didn't you just used very small indents or channels along the body just from the end of the nose cone and upto the top of the fin would have saved you some mass and even gave a passive control you don't need an active control for a roll program you just did it to test it

This guy is Elon's son

Have you considered working with these hero’s in developing a plug-in or app where you can upload Ava or other flight data to simulate flight without having cameras? Sounds like other rocketry engineers would benefit since this isn’t the first or last time a rocket would lose or not have footage but potentially collect the numbers

I think this is the best video you've ever made, keep upping that production values! This is amazing!
Also, yes please, we all want to see the video about transonic flight regimes.

Don't canards, especially mounted so far forward, put the CP way ahead of the CG, causing massive instability that could cause the rocket to tumble? Unless you had some sort of fly by wire flight control system, which works great in modern jet fighters & flying wings like the B-21, but would likely be too heavy, too complex, and just too 😵‍💫🤣 for a relatively small rocket.

At the risk of being the “why don’t you just” guy… why don’t you just use a torque balance controled fin instead of trying a shitty autopilot

I was thinking of a camera looking back at the launch pad and correcting the flight to keep going straight (like a mouse looks at the mouse pad with a camera).

Mount the cameras on bearings, so they can spin, but with their own fins instead of a motor

You need much smaller fins because your thrust to weight is insanely large and fins that are too large are over controlling the rocket.

For the camera thing, instead of having it spin to counter the rotation of the rocket you could do an array of cameras all around and spice the feeds together in post to get a non moving view. I hope this made sense.

Iran and N. Korea have entered the chat... ;)

First I’m going to say I know nothing about rockets. With that out of the way. My question is to keep the rocket below the speed where it loses some control could you do a slower longer burn ?