Accession Number : AD0281788

Title :   DISPERSAL OF SUPERCOOLED FOG AND STRATUS CLOUDS,

Corporate Author : TECHNICAL OPERATIONS INC BURLINGTON MASS

Personal Author(s) : Eddy ,Alan ; Vickers,William

Report Date : 31 MAR 1962

Pagination or Media Count : 157

Abstract : Results are presented of an experimental study of the dissipation of supercooled fog and stratiform clouds by an airborne dry-ice dispenser. The ultimate purpose is to provide the Air Force with an operational capability of dissipating supercooled clouds by dispensing dry-ice pellets made on board the seeding aircraft and dispensed at will to create holes in the cloud layer of specific size for particular missions. Experiments are designed, flown, and analysed to determine what variables, either controllable or uncontrollable, are influencing the experiments and which of these variables must be considered in the design of equipment. The final results indicate that cloud liquid-water content and turbulence are two uncontrollable variables influencing the experiment. The trial range used for controllable variables was higher than the critical minimums sought. The experiments show that a simple emergency dispenser for all aircraft appears feasible for cloud decks less than 1,000 feet thick. A more sophisticated model with a single size pellet-making ability and 300-lb liquid CO2 capacity should be designed for airport duty aircraft. (Author)

Descriptors :   *CLOUDS, *SCATTERING, CARBON DIOXIDE, FOG, ICE, SEEDS, SOLIDIFIED GASES, STRATUS CLOUDS, TURBULENCE, WATER

Distribution Statement : APPROVED FOR PUBLIC RELEASE