A Strategic Force Deterrence Model
Deterrence as a method of preserving peace is not new in the realm of diplomacy, but is relatively so as a subject for scientific analysis. The model of the interaction of opposing strategic forces described here provides a useful framework for such analysis.
APL Propulsion Research Laboratory
The new Propulsion Research Laboratory has been constructed to provide experimental testing capabilities for advanced air-breathing propulsion systems, including hypersonic ramjets. The PRL is also provided with sufficient built-in flexibility and versatility to serve the bulk of current and future APL propulsion research programs. This paper discusses the principal systems and equipment components in the PRL, giving such details as most clearly define the facility’s capabilities and potentialities.
New Trends in Telemetry
Telemetry systems in widest user are the FM-FM frequency division, and the PAM, PDM, and PCM time-division systems. A new hybrid system, PACM, could be used to combine the advantages of both PAM and PCM. In the future there will be marked improvement in speed, accuracy, and reliability of telemetry systems, along with reduction in size, weight, and cost.
Injun, A Radiation Research Satellite
The launching of the Transit 4A satellite on June 29, 1961, marked the first attempt to orbit three satellites simultaneously. The middle member of the three, Injun, is a radiation research satellite developed by Professor James A. Van Allen and his associates at the State University of Iowa. This paper describes Injun in some detail, especially the low-energy proton detectors developed for it at APL, and some preliminary conclusions drawn from the data already received from Injun.