Report presenting the results of a limited research program initiated to study the effects of a hot propulsive jet on the longitudinal stability characteristics of a fighter-type airplane configuration. The data was obtained from a rocket-boosted free-flight model investigation over a range of Mach numbers using four models that differed only in the position and size of the horizontal tail. Results regarding the time histories, trim, normal force, pitching moment, aerodynamic-center location, dynamic stability, trim drag, and pressure data are provided.

From Summary: "The aeroelastic effects on wing-aileron rolling effectiveness and drag of thin flat-plate delta wings with 45 degree swept leading edge and plain constant-chord ailerons have been investigated. This investigation has been carried out over a Mach number range of 0.7 to 1.6 by means of rocket-propelled test vehicles in free flight. The results show a near-linear decrease in lateral control effectiveness with a decrease in the wing torsional stiffness. An aileron-effectiveness reversal was experienced with the more flexible delta-wing models."

Memorandum presenting a mechanism for the thermal decomposition of sodium, lithium, beryllium, magnesium, aluminum, and boron alkyls and for the reverse reaction, the addition of olefins to metal hydrides. The reactions are shown to be nonradical and to probably proceed through a cyclic intermediate.