Declassified UFO / UAP Document
Betr. Spökraketfynd (Regarding Ghost Rocket Findings)
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AI-Generated Summary
A 1946 laboratory report identifies material samples recovered in connection with 'ghost rocket' sightings as synthetic rubber. The yellow sample was confirmed as neoprene-type rubber, while the gray sample was sent for further analysis.
This document is a letter dated August 16, 1946, from the Swedish Rubber Research Laboratory (Svenska Gummiforskningslaboratoriet) in Uppsala to Ragnar Vestin at the LKB Research Laboratory in Äppelviken. The subject of the letter is the analysis of material samples related to 'ghost rocket' findings (Spökraketfynd). The laboratory examined two types of samples: a yellow mass and a gray mass. The yellow mass was identified as a highly polymerized DVA (a type of synthetic rubber, specifically neoprene), which is known to burn with a bright flame and heavy soot. The laboratory noted that such material is well-known at the factory in Stockvik. Regarding the gray mass, the laboratory could not identify it and stated it had been forwarded to the Fosfatbolaget factory in Medelpad for further analysis. The letter concludes by noting that DVA or DVA-polymer can be used as fuel and that the technical management of the rubber factories had been consulted during the investigation.
Man kanske i detta sammanhang bör påpeka, att DVA eller DVA-polymer kan användas som bränsle.
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Official Assessment
The yellow mass is identified as synthetic rubber of the neoprene type, likely from a factory. The gray mass was forwarded to Fosfatbolaget for identification.
The yellow material is a synthetic rubber polymer. The gray material remains unidentified by the laboratory and was sent to another facility.
Key Persons
- Ragnar VestinFil.lic. at Forskningslaboratoriet LKB
- Sonja AnderssonCertifier of the copy