SA is about to be in the middle of a Russian propaganda coup around an 'unstoppable' weapon

Exactly what I posted earlier in the thread regarding the Overberg test range:

“South Africa won’t be able to verify anything. None of its ships deployed has sensors that could reliably determine the real performance of a hypersonic anti-ship missile, let alone any other kind of missile, and the SANDF has no telemetry ranges near there. At Overberg Test Range, maybe, but not on the east coast. “So, there is absolutely zero reason for South Africa to be a ‘witness’ to the launching of a Zircon, except as a propaganda coup, and for South Africa to be used as a supposedly impartial witness to the weapon’s operational performance despite not having the technical means to accurately do so.

www.dailymaverick.co.za

Western diplomats raise alarm on South Africa-Russia-China joint naval exercise during anniversary of Ukraine invasion

By staging a joint exercise with Russia and China at a highly sensitive time, South Africa is undermining its claim of being ‘nonaligned’ in the Ukrainian war and risking good relations with the West.…
www.dailymaverick.co.za www.dailymaverick.co.za

By contrast, the South African Navy is expected to contribute the SAS Protea survey ship and the SAS King Sekhukhune I, an inshore patrol vessel armed with no more than a 20mm cannon for self-defence.

The SAS Protea is unarmed and an over 40 year old British Hecla Class hydrographic survey vessel that produces nautical charts.

SAS Protea:

b1a9f7bda1b4bccccf727c164839c969.jpg
 
wingnut771 said:
but there isn't 2 booms when you go twice as fast is what I think he's saying.
Click to expand...

Yeah but it doesn't happen as you pass the speed of sound which is how that statement can easily be misinterpreted. The waves constructively interfere to create a shock cone when traveling faster than sound.

An interesting but more complicating look is that a N wave is generally 2 impulses but they're really tightly together, so you hear one bang.
It's also important to note that it's not just the tip of the aircraft that can make a shock cone. An example of something making more than one is the falcon 9 re-entry. It creates 3 sonic booms but that's due to the deployment of the grid fins and when the landing burn starts.
 
Moosedrool said:
Yeah but it doesn't happen as you pass the speed of sound which is how that statement can easily be misinterpreted. The waves constructively interfere to create a shock cone when traveling faster than sound.

An interesting but more complicating look is that a N wave is generally 2 impulses but they're really tightly together, so you hear one bang.
It's also important to note that it's not just the tip of the aircraft that can make a shock cone. An example of something making more than one is the falcon 9 re-entry. It creates 3 sonic booms but that's due to the deployment of the grid fins and when the landing burn starts.
Click to expand...
Is it always the same volume regardless of mach number?
 
wingnut771 said:
Is it always the same volume regardless of mach number?
Click to expand...

I does but not significantly over mach 1.3 according to this Nasa article. The strength in the overpressure is more dependent on the shape and size of the thing and very dependent on atmospheric conditions.

www.nasa.gov

NASA Armstrong Fact Sheet: Sonic Booms

A sonic boom is the thunder-like noise a person on the ground hears when an aircraft or other type of aerospace vehicle flies overhead faster than the speed of sound or supersonic.
www.nasa.gov www.nasa.gov
 
Moosedrool said:
I does but not significantly over mach 1.3 according to this Nasa article. The strength in the overpressure is more dependent on the shape and size of the thing and very dependent on atmospheric conditions.

www.nasa.gov

NASA Armstrong Fact Sheet: Sonic Booms

A sonic boom is the thunder-like noise a person on the ground hears when an aircraft or other type of aerospace vehicle flies overhead faster than the speed of sound or supersonic.
www.nasa.gov www.nasa.gov
Click to expand...
NASA is about to fly a prototype aircraft that is designed to significantly reduce the sonic boom.

https://twitter.com/x/status/1617308131360657410
 
Moosedrool said:
I does but not significantly over mach 1.3 according to this Nasa article. The strength in the overpressure is more dependent on the shape and size of the thing and very dependent on atmospheric conditions.

www.nasa.gov

NASA Armstrong Fact Sheet: Sonic Booms

A sonic boom is the thunder-like noise a person on the ground hears when an aircraft or other type of aerospace vehicle flies overhead faster than the speed of sound or supersonic.
www.nasa.gov www.nasa.gov
Click to expand...
1676186691672.png
 
Moosedrool said:
Yeah but it doesn't happen as you pass the speed of sound which is how that statement can easily be misinterpreted. The waves constructively interfere to create a shock cone when traveling faster than sound.

An interesting but more complicating look is that a N wave is generally 2 impulses but they're really tightly together, so you hear one bang.
It's also important to note that it's not just the tip of the aircraft that can make a shock cone. An example of something making more than one is the falcon 9 re-entry. It creates 3 sonic booms but that's due to the deployment of the grid fins and when the landing burn starts.
Click to expand...
https://twitter.com/x/status/1410205263198625794
 
hexagon said:
You have my answer and you're not getting another.
Click to expand...
Don't worry about him....he doesn't even know it's uncommon to have a basement in South Africa......Australia too for that matter.
When found out he starts banging his head against the wall and typing strange words for attention.
 
rietrot said:
No. Reading comprehension is a thing. Why did Japan attack? I bet you believe for completely no reason at all, just because they are evil and wanted to destroy the US
Click to expand...

Respectfully, you have a very poor grasp of history.

Japan was building an empire and it lacked resources. These two facts placed it on an inevitable collision course with the US and European powers.

Two key pieces of official Japanese foreign policy make this very clear;

1. The Greater East Asia Co-Prosperity Sphere - Japan viewed itself as dutybound to ''liberate'' Asia from European colonialism and then create a mutually beneficial Asian bloc. Reality - Japanese nationalists and militarists wanted to kick Europeans out and replace them as the dominant power, using the resources of the newly ''liberated'' lands to fuel their war machine and build their empire. Militarists had massive power and influence over the Japanese government and thus national policy. After the Emperor, the most powerful people in Japan were not politicians, they were men in the navy and army, who themselves were competing for political power and influence. They wanted war.

2. Nanshin-ron - Historical Japanese political doctrine that sought to expand Japanese influence throughout south-east Asia and the Pacific. Nanshin-ron ultimately evolved in to the Greater East Asia Co-Prosperity Sphere.

Japan was going to attack European-held territory in Asia and ultimately run foul of the US as the Philippines and numerous US-held Pacific islands lay directly in their path of expansion.

Germany had Lebensraum driving its aggressive foreign policy that led to war. Italy had Mare Nostrum (dominance over the Med) and Mussolini's dream to rebuild the Roman Empire driving its aggressive foreign policy that led to war. And Japan had its euphemistically-named Co-Prosperity Sphere driving its aggressive foreign policy that led to war.
 
Japan's problem was that they chose to self isolate for 100s of years. The Jesuits and others were in Japan and Japan could have learned from them, opened up, acquired the know how and become a power much sooner had they not gone full on xenophobic, slaughtered their Christian population and attendant missionaries/Westerners and then locked down with only one outpost to trade with the Dutch. They missed the whole colonial scramble for resources. When they finally did manage to field a modern navy and army it was already too late. The writing was on the wall for colonies and big empires. They chose to do in the 1900s what the Europeans had done in the 14-1600s but in a more brutal way. If Oda Nobunaga (1534-1582) had not been prematurely killed maybe Japan would have modernised sooner and their military would perhaps not have been as aggressive and maybe not as barbaric. Who knows. They may have been another France or Britain.
 
Zameside said:
Don't worry about him....he doesn't even know it's uncommon to have a basement in South Africa......Australia too for that matter.
When found out he starts banging his head against the wall and typing strange words for attention.
Click to expand...

I'd call you an idiot, but that would be insulting to idiots.

You still feeling the burn after being schooled about basements, I see? (And it wasn't just me trying to rectify your ignorance).
 
Harold_Crick said:
Respectfully, you have a very poor grasp of history.

Japan was building an empire and it lacked resources. These two facts placed it on an inevitable collision course with the US and European powers.

Two key pieces of official Japanese foreign policy make this very clear;

1. The Greater East Asia Co-Prosperity Sphere - Japan viewed itself as dutybound to ''liberate'' Asia from European colonialism and then create a mutually beneficial Asian bloc. Reality - Japanese nationalists and militarists wanted to kick Europeans out and replace them as the dominant power, using the resources of the newly ''liberated'' lands to fuel their war machine and build their empire. Militarists had massive power and influence over the Japanese government and thus national policy. After the Emperor, the most powerful people in Japan were not politicians, they were men in the navy and army, who themselves were competing for political power and influence. They wanted war.

2. Nanshin-ron - Historical Japanese political doctrine that sought to expand Japanese influence throughout south-east Asia and the Pacific. Nanshin-ron ultimately evolved in to the Greater East Asia Co-Prosperity Sphere.

Japan was going to attack European-held territory in Asia and ultimately run foul of the US as the Philippines and numerous US-held Pacific islands lay directly in their path of expansion.

Germany had Lebensraum driving its aggressive foreign policy that led to war. Italy had Mare Nostrum (dominance over the Med) and Mussolini's dream to rebuild the Roman Empire driving its aggressive foreign policy that led to war. And Japan had its euphemistically-named Co-Prosperity Sphere driving its aggressive foreign policy that led to war.
Click to expand...
So what resources did they gain in Hawaii?
 
For imperial Japanese simps, if you visit Japan, visit this place:

:)

Yasukuni Jinja

Yasukunijinja is a shrine established for commemorate and to show appreciation and respect to those who dedicated their precious lives to their mother country. Outline, Location map, guidance, chronology
www.yasukuni.or.jp
 
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