00000nam 2200000zi 4500 9.934458 CaOODSP 20250428151505 m o d f cr |n||||||||| 240223e198508uuqucad ob f000 0 eng d CaOODSP eng rda CaOODSP eng eng fre n-cn--- DR52-9/7-1985E-PDF Liberman, Tom, 1960- author. Investigation of cold colored smoke production / by T. Liberman. Québec, Canada : Defence Research Establishment [Valcartier] = Centre de recherches pour la défense Valcartier : [Research and Development Branch, Department of National Defence Canada = Bureau - Recherche et développement, Ministère de la défense nationale Canada] : [National Defence = Défense nationale], August/août 1985 1 online resource (v, 38, [3] pages) : illustrations, charts text txt rdacontent computer c rdamedia online resource cr rdacarrier DREV report = CRDV rapport ; 4372/85 "File: 3621B-002". "Dossier: 3621B-002". Digitized edition from print [produced by Defence Research and Development Canada]. Includes bibliographical references (page 32). "Different methods for producing large colored smoke clouds for use as spotting charges are evaluated. The problem of the disappearance, or "bleaching", of the orange color from vanadium oxytrichloride (VOCl3) clouds during times of high relative humidity is considered. It is postulated that this is caused by the absorption of large quantities of atmospheric moisture by the smoke. A model has been developed to study the process. This model makes the key predictions concerning the absorption of very large amounts of atmospheric moisture by VOC3-type smokes above a relative humidity of 80% and the very small importance of temperature as a parameter. These predictions are, in general, corroborated very well by experiment. Possible solutions to this color bleaching problem are discussed, including one that calls for the synthesis of hydrolyzable vanadium compounds with nonhydroscopic leaving groups."--abstract (page i). Includes abstract in French. Vanadium compounds. Air warfare Drill and tactics Equipment and supplies. Vanadium Composés. Guerre aérienne Exercices Appareils et matériel. Technical reports lcgft Rapports techniques rvmgf Defence Research Establishment Valcartier, issuing body. Canada. Department of National Defence. Research and Development Branch, issuing body. Canada. Department of National Defence, issuing body. CRDV rapport. 4372/85. (CaOODSP)9.934167 PDF 1.26 MB https://publications.gc.ca/collections/collection_2024/rddc-drdc/DR52-9-7-1985-eng.pdf DREV R-4372/85 ; CRDV R-4372/85