Short notes
DOI: 10.1063/1.3048114
The research and advanced development division of the AVCO Corporation has received a one‐year contract to measure, for the first time, the behavior of ions in the atmosphere at altitudes between 10 and 80 km. The US Army Ballistic Research Laboratories will support the work with $150 000. Measurements will be made with instrumentation attached to a descending parachute. Hans Dolezalek will direct the work.