Robert Kempel, one of the top authorities regarding the General Yeager and the X-1 being first to go supersonic gave a resoundingly successful talk last evening to an SFTE and AIAA joint meeting.
Robert Kempel, one of the top authorities regarding the General Yeager and the X-1 being first to go supersonic gave a resoundingly successful talk last evening to an SFTE and AIAA joint meeting.
