# Questions tagged [sounding-rocket]

A sounding rocket, sometimes called a research rocket, is an instrument-carrying rocket designed to take measurements and perform scientific experiments during its sub-orbital flight.

43 questions
Filter by
Sorted by
Tagged with
148 views

### Chamber Pressure and Burn Rate equations

I know that chamber pressure is $$P_0=p \left[ 1+ \frac{1}{2}(k-1)M^2 \right]^\frac{k}{k-1}$$ where $M$ is exit Mach number and according this equation M= \sqrt{ \frac{2}{k-1} \left[ \left( \frac{...
216 views

### Why does this sounding rocket have black sooty exhaust with mach-diamond-like oscillations? Is this unusual?

File footage of a sounding rocket with a dark, non-luminescent, sooty exhaust with mach-diamond-like oscillations is shown in the video 1957-1959 IBM 704 Computer - Vanguard Satellite Program "...
• 149k
145 views

### Is the SS-520-5 both a floor wax and a desert topping? Can it be considered both a sounding rocket and an orbital vehicle?

The answer to If there "won't be" rockets to launch individual cubesats, then why did JAXA build exactly that? (SS-520-xx) begins The SS-520-5 launcher is not intended to be an ...
• 149k
125 views

### Largest number of rockets launched into space from a given launch site in a 24 hour period?

Question: What is the largest number of rockets launched into space from a given launch site in a 24 hour period? Where, when, why? "into space" means $\ge$ 100 km, but pretty close to 100 ...
• 149k
93 views

### Do sounding rockets need a license to be launched?

I am just curious to know if any kind of license is needed to launch a sounding rocket? If yes, then what kind of licenses are there for sounding rocket launches.
1 vote
147 views

### What is an "Aceteria improved Ryan suborbital sounding rocket"?

Why does the Minotaur I wear a yellow jacket that "banana-peels" off as it launches? links to the NASA Wallops video NRO L-111 Launch (already cued at the statement in question). At the end ...
• 149k
48 views

### KiNET-X Launch, where will the 'vapour cloud' be?

Inspired by How to calculate degrees above/below horizon? (For KiNET-X rocket getting to an altitude of over 200 miles.) and this NASA article/blog post, specifically this paragraph: The vapor will ...
• 9,435
290 views

### MT-135 Sounding Rocket info / design

I'm searching for any design file or deep-info on the MT-135 rocket, the fuel used, engines, engines info, any thing really. I have deep-searched on tons of sites but I just find few missions that ...
• 1,613
229 views

### Smallest sounding rocket to reach space by height?

Which is the smallest sounding rocket to reach space (100 km)? By height Similar question: Smallest orbital rockets by height?
• 2,560
232 views

### Did any rockets have 5- or 7-fold symmetry?

Have any rockets ever been made with fivefold or sevenfold symmetry? Five or seven (or larger prime numbers, or multiples thereof) identical engines or boosters equally spaced around the center. (...
• 11.2k
245 views

### Could the SS520 be used to return a payload from Mars to Earth?

The Japanese SS520-5 nanosat launcher has a payload of 5kg or so to LEO on an all solid fuel rocket with a total mass of about 2.6 tons. To reach LEO its delta-V totalled over all three stages must be ...
• 19.2k
1 vote
102 views

### Did any sounding rocket ever fly through a noctilucent cloud?

Noctilucent clouds are the highest clouds forming above the Earth, up in the mesosphere. They form in late spring / early summer and above latitudes closer to the poles. Was a sounding rocket ever ...
• 495
261 views

### Highest reaching sounding rocket

What is the highest reaching sounding rocket? Black Brant XII can reack 1,500 km, is there any other sounding rocket that can reach even higher?
• 2,560
1 vote
217 views

### Which sounding rockets are the biggest?

Saturn 5 is the tallest heaviest and most powerful rocket but what are the biggest sounding rockets by height, mass and power? https://en.m.wikipedia.org/wiki/Sounding_rocket RTV-G-4 Bumper - 19 m - ...
• 2,560
56 views

### What are the most used American sounding rockets?

From all the sounding rockets used by USA which model has/had the most widespread use?
• 2,560
1k views

### Did any sounding rocket ever reach space?

Did any sounding rocket ever reach space (Karman line 100km) If yes then how many did and when?
• 2,560
219 views

### How do small, spin stabilized launchers follow a rhumb line?

This concise answer to What exactly is rhumb-line control in the context of a launch trajectory? explains the concept in the context of the SS-520 nanosatellite launch vehicle (which "doesn't exist"). ...
• 149k
505 views

### If there "won't be" rockets to launch individual cubesats, then why did JAXA build exactly that? (SS-520-xx)

The question Why isn't there a rocket to launch a single cubesat? has several good answers that explain why there isn't and/or will not likely be one, based mostly on commercial viability, consistent ...
• 149k
867 views

### PID Controller for Thrust Vector Controlling of High Power Rocket

We are trying to design a Thrust Vector Control system for a High Power Rocket using PID Controller. Can anyone guide us what approach should we use to create this Controller? Rocket Details: Mass: ...
• 361
154 views

### How common are "parallel stages" in a launch vehicle?

I'm being told in this answer and in this comment that the fourth stage of the Farside rocketoon lies in the center of the four "cores" of the third stage. See this answer for several pictures of ...
• 149k
128 views

### Where is Farside's 4th stage?

This answer has a lot of images that I shouldn't need to repost here, and is supplemental to this answer to the question Help me understand what Farside, a ten “stage” rockoon looked like? How was it ...
• 149k
728 views

### Help me understand what Farside, a ten "stage" rockoon looked like? How was it configured?

@OrganicMarble's answer links to NASA Sounding Rockets, 1958-1968, A Historical Summary and in Appendix A starting on page 79 it lists: Farside: A type of rockoon developed by Aeronutronics ...
• 149k
1 vote
51 views

### Spin of the sounding rocket [duplicate]

I saw a video of a sounding rocket, where the rocket`s outer body was spinning very fast. Why does that happen?
223 views

### How does launching suborbital payloads on New Shepard compare to sounding rockets?

Nine NASA payloads will be launched on the upcoming New Shepard mission (NS-10) into a suborbital trajectory. How does launching them on New Shepard compare to using traditional sounding rockets? Why ...
• 3,372
1 vote
568 views

### What is an "M motor"? (used in a full-scale model of a Corporal missile)

The NASA JPL video Corporal: America’s First Guided Ballistic Missile shows that it used an Acid/Analine engine. That would have been both challenging and unpleasant to reproduce. So instead, the ...
• 149k
528 views

### Why is this rocket transparent, and why is there a nozzle in the nose, pointing up?

The tough question NASA at sIxty years, will there be a new moonshot mandate? links to the NASA YouTube video NASA 60th: How It All Began which shows a lot of really nice, historical file footage and ...
• 149k
664 views

### What's up with the "What's Up at Wallops" app?

While reading about the recent Wallops launch for the question Does the Mars2020 lander need a new parachute design? and trying to confirm how to spell Wallops, I ran across the "free What’s Up at ...
• 149k
1 vote
296 views

### Could a sounding rocket or a space gun payload at apogee be put into orbit with a rocket impulse from there?

Consider a sounding rocket that launches its payload to several hundreds of kilometers of altitude, straight up. Imagine that this payload at apogee then points itself accurately and has a propulsion ...
• 26.7k
5k views

### Launching sounding rockets from the magnetic equator (ISRO's Thumba)

The Thumba Equatorial Rocket Launching Station is operated by ISRO for launching sounding rockets because magnetic equator passes through it. Equator gives additional velocity, But what advantage ...
• 163
464 views

### Did the British Skylark ever launch from the UK?

The BBC News item Skylark: The unsung hero of British space remembers the 441st and final launch of the British rocket Skylark in May 2005, to commemorate the 60th anniversary of its first launch. ...
• 149k
915 views

### Will JAXA try again to launch TRICOM-1 with the "world's smallest orbital rocket" SS-520-4 again?

From the Spaceflight 101 article Experimental Launch of World’s Smallest Orbital Space Rocket ends in Failure: SS-520-4 lifted off from the Uchinoura Space Center in Japan’s Kagoshima prefecture at 8:...
• 149k
2k views

### Why a Terrier Malemute?

A Terrier Improved-Malemute actually. 1. Astronautix, 2. Gunter's Space Page, 3. Wikipedia, 4. NASA pdf. According to Space.com's Watch a NASA Rocket Create Colorful Artificial Clouds Over US East ...
• 149k
333 views

### Was it another Fishing Tournament?

@KimHolder's thorough answer to What are the consequences for a person who violates a launch exclusion zone? mentioned a fishing tournament. @PearsonArtPhoto's comment about scheduling launches during ...
• 149k
263 views

### Project High Water and the lightning-like radio disturbances it caused

The two Project High Water launches caused the release of 95 tons of water in the ionosphere. For both of these experiments, the resulting ice clouds expanded to several miles in diameter and ...
• 2,561
5k views

### Is 678 km the new altitude record for a rocket shot "straight up" (vertical launch)?

The Space Daily April 10th Rocket Science item Europe's largest sounding rocket launched from Esrange says: MAXUS 9, Europe's largest sounding rocket for experiments in microgravity, successfully ...
• 149k
375 views

### What are the most important aspects to look into when building an experimental sounding rocket? [closed]

I have broken down the process plan to various subsystems( including a Recovery system)but would want to know from the community what are the most important aspects of the rocket that one must focus ...
5k views

### What are some good softwares to simulate rocket trajectories ?

I am working on a college project which is based upon a experimental sounding rocket and it would be really helpful if the community could refer me good softwares to simulate trajectories of a rocket.
1k views

### Using large orbital launchers as sounding rockets. What are the opportunities and challenges?

Instead of launching a payload to orbit, consider one of the big launchers of today (like Atlas V, Ariane 5, Falcon 9, Proton) being used as a sounding rocket for astronomical observation purposes. ...
• 26.7k
243 views

### First sounding rocket to reach the mesosphere?

The mesosphere (the part of the atmosphere above the stratosphere where temperatures increase with altitude) is generally above the altitude reachable by balloon. It begins somewhere around 50 km. ...
• 3,950
439 views

### How high can a sounding rocket launch and for how long time can it put a payload in freefall microgravity?

Sounding rockets or suborbital launches basically go straight up and then fall down without entering orbit. That requires much less fuel mass than to achieve 8,000 m/s or so orbital velocity. For how ...
• 26.7k
3k views

### How can a sounding rocket accurately take the temperature of the atmosphere while flying through it at high speed?

A sounding rocket is a rocket that ascends into the high atmosphere in order to take all sorts of measurements so we can learn more about the upper atmosphere. They don't go into orbit, so they can be ...
• 4,506
248 views

### What use could be getting to space just for a bit?

I asked a question about reaching space using non-rocket aircrafts on aviation.se and I found out that it may be possible to reach the space for a short moment and then a normal aircraft designed to ...
• 453