luchtschip schreef op 10 oktober 2022 18:57:
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Je krijgt in jouw vermoeden wel steun van een expert uit Finland
1/ Finland's national broadcaster Yle has published an interesting interview with an explosive ordnance disposal expert, retired Major Myka Tyry of the Finnish Defence Forces, on the Crimea Bridge blast. He makes a number of points I've not seen elsewhere.
2/ Tyry estimates that the explosives used "may have weighed between one and two thousand kilograms" (2,200-4,400 lb) but was "not a conventional mixture of fuel oil and ammonium nitrate, but something of much higher quality".
3/ He also points out that it wasn't just a big fireball, but was followed by "flaming torches in the air ... This suggests the use of combustible metals such as aluminium, magnesium or thermite to amplify the explosion."
4/ "In such an explosion, the burning metals spread over a much wider area than just the usual large fireball. That would explain how a train dozens of metres away caught fire from the explosion."
5/ Tyry suggests that the explosive payload may have included Russian-made thermite incendiaries. (The Russians have used these extensively in Ukraine, and the Ukrainians have captured unfired Russian thermite rockets; see thread below on this topic.)
6/ He also comments that the explosion likely happened on the bridge deck, with "little air between the explosives and the deck. For example, exactly the height of the truck."
7/ He points to a lack of water disturbance as evidence against the possibilities of a boat bomb or sabotage of the bridge structure. An explosion at sea level would have caused a spout of water, he says, but this isn't visible in the published videos.
8/ He also points to the location of the visible damage: "If the explosive had been placed below the deck of the bridge, then there would have been no scorch marks from the explosion on the railings of the adjacent car lane."
9/ "Likewise, the 'flares' would have flown upwards, not downwards and sideways as they did in the explosion."
Interview is linked below (h/t @m5b71) –
I'd be interested to see if any other EOD people have commented on this yet. /end
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