At the Edge of Space: The X-15 Flight Program garden stone Item Number: TLUFS55

Item Number: TLUFS55

The gray cement base complements any color scheme

The set is dishwasher safe

Item Number: JC719

At the Edge of Space: The X-15 Flight Program garden stone Item Number: TLUFS55Experimental Aircraft: Details the development and missions of the X 15, a cutting edge experimental aircraft. NASA and Air Force Collaboration: Collaboration between NASA and the U. S. Air Force in the X 15 program for high speed flight research. Flight Records: Sets records for altitude and speed, pushing the boundaries of manned flight. Test Pilots: Profiles the test pilots who flew the X 15, their training, and their contributions to aerospace