Different Account of the Nyonoksa Explosion - No Nuclear Rocket Engine

Scott Ritter, a former Marine Corps intelligence officer, writing in the The American Conservative, August 26, 2019, has a different account regarding the August 8, 2019 Nyonoksa (aka Nenoksa) explosion. Ritter's account is partly in line with Pete's belief (part expressed here) that there is no way, with Russia's limited military budget, and competing weapons' project demands, that it could be up to the nuclear reactor rocket engine test phase for the Skyfall cruise missile. 

Ritter's full report is at 

https://www.theamericanconservative.com/articles/the-medias-russian-radiation-story-implodes-upon-scrutiny/ . The following is an abridged version: 

The Media’s Russian Radiation Story Implodes Upon Scrutiny

What really happened at Nenoska was less explosive than everyone, including Trump, wanted you to believe.

How the mainstream media reported an August 8 [2019] accident at a top-secret missile test facility in northern Russia should serve as a cautionary tale regarding the dangers of rushed judgments via institutional bias.

In the days following the initial report of the accident, the media exploded with speculation over both the nature of the device being tested at the Nenoksa State Central Marine Test Site and the Russian government’s muted response.

...They’re all wrong. Here’s the real story of what actually happened at Nenoksa.

...Russia has long been pursuing so-called “autonomous” weapons that can be decoupled from conventional means of delivery—a missile silo or a submarine—and instead installed in canisters that protect them from the environment. They would then be deployed on the floor of the ocean, lying in wait until remotely activated. One of the major obstacles confronting the Russians is the need for [constant temperature of rocket fuel and oxidizer and electrical/electronic] system equilibrium, including the onboard communications equipment, prior to activation. The power supply for any system must be constant, reliable, and capable of operating for extended periods of time without the prospect of fuel replenishment.

The solution for this power supply problem is found in so-called “nuclear batteries,” or radioisotope thermoelectric generators (RTG). [also see Wiki] An RTG generates electricity using thermocouples that convert the heat released by the decay of radioactive material. RTGs have long been used in support of operations in space. The Russians have long used them to provide power to remote unmanned facilities in the arctic and in mountainous terrain. Cesium-137, a byproduct of the fission of U-235, is considered an ideal radioisotope for military application RTGs.

On August 8 [2019], a joint team from the [Russian] Ministry of Defense and the All-Russian Research Institute of Experimental Physics, subordinated to the State Atomic Energy Corporation (ROSATOM), conducted a test of a liquid-fueled rocket engine, in which electric power from Cesium-137 “nuclear batteries” maintained its equilibrium state. The test was conducted at the Nenoksa State Central Marine Test Site (GTsMP), a secret Russian naval facility known as Military Unit 09703. It took place in the waters of the White Sea, off the coast of the Nenoksa facility, onboard a pair of pontoon platforms.

The test had been in the making for approximately a year. What exactly was being tested and why remain a secret, but the evaluation went on for approximately an hour. It did not involve the actual firing of the engine, but rather the non-destructive testing of the RTG power supply to the engine. 

The test may have been a final system check...

When the actual testing finished, something went very wrong. According to a sailor from the nearby Severdvinsk naval base, the hypergolic fuels contained in the liquid engine (their presence suggests that temperature control was one of the functions being tested) somehow combined. This created an explosion that destroyed the liquid engine, sending an unknown amount of fuel and oxidizer into the water. At least one, and perhaps more, of the Cesium-137 RTGs burst open, contaminating equipment and personnel alike. 

...The Russian Meteorological Service (Roshydromet) operates what’s known as the Automatic Radiation Monitoring System (ASKRO) in the city of Severdvinsk. ASKRO detected two “surges” in radiation, one involving Gamma particles, the other Beta particles. This is a pattern consistent with the characteristics of Cesium-137, which releases Gamma rays as it decays, creating Barium-137m, which is a Beta generator. The initial detection was reported on the Roshydromet website, though it was subsequently taken offline. 

Specialized hazardous material teams scoured the region around Nenoksa, Archangesk, and Severdvinsk, taking air and environmental samples. All these tested normal, confirming that the contamination created by the destruction of the Cesium-137 batteries was limited to the area surrounding the accident. Due to the large amount of missile fuel that was spilled, special restrictions concerning fishing and swimming were imposed in the region’s waters — at least until the fuel was neutralized by the waters of the White Sea. The damage had been contained, and the threat was over.

The reality of what happened at Nenoksa is tragic. Seven men lost their lives and scores of others were injured. But there was no explosion of a “nuclear cruise missile,” and it wasn’t the second coming of Chernobyl. America’s intelligence community and the so-called experts got it wrong — again. The root cause of their error is their institutional bias against Russia, which leads them to view that country in the worst possible light, regardless of the facts.

At a time when the level of mutual mistrust between our two nuclear-armed nations is at an all-time high, this kind of irresponsible rush to judgement must be avoided at all costs.

Scott Ritter is a former Marine Corps intelligence officer who served in the former Soviet Union implementing arms control treaties, in the Persian Gulf during Operation Desert Storm, and in Iraq overseeing the disarmament of WMD. He is the author of Deal of the Century: How Iran Blocked the West’s Road to War.

See Ritter's FULL REPORT HERE.
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There being no photos of radioisotope thermoelectric generators (RTGs), that support Russian missiles, available, see the Cassini space probe RTG in the photo (above) and diagram (below) (courtesy NASA via Wikipedia).

Pete