Refan program
The JT8D Refan Program for noise reduction is outlined, and the overall objectives and program status, test results, and current noise level predictions are presented.
Schroeder, R. W.↗
Engineering topics
Schroeder, R. W.
Publications and source records attributed to Schroeder, R. W..
Quiet STOL propulsion session introductory remarks
Research activities, preliminary design activities, and system optimization studies in support of the development of advanced, quiet, STOL propulsion systems are discussed. Noise alleviation by means of controlling the source and by means of acoustical treatment receive considerable emphasis. A STOL airplane designed for a given payload has essentially double the installed thrust of a comparable CTOL airplane. Unless compensated for during the design process, this alone will tend to increase the source noise by 3 db. The propulsive lift introduces flap impingement noise or duct and flap scrubbing noise, noise sources not present in CTOL airplanes to any significant degree. These additional noise sources are illustrated. Depending on the specific configuration, this will tend to increase the noise by several db or more. Although the propulsive lift characteristics of STOL airplanes will tend to increase source noise significantly, the proximity of STOL airfields to populated areas leads to STOL noise objectives considerably lower than those currently applicable to CTOL airplanes.
Schroeder, R. W.↗
NERVA - Entering a new phase.
Technology program in NERVA development, discussing design concepts and testing procedures
Schroeder, R. W.↗
NERVA program status
Reactor design and development, interactions with nozzle and turbopump during integrated testing, and fabrication and safety efforts related to NERVA program
Schroeder, R. W.↗
Status of the NERVA program.
NERVA program, reactor and nonnuclear component development, full-scale testing, engine program, facilities and materials research
NUCLEAR ROCKET↗