Big Joe-1 Mercury Atlas launch vehicle lifting off at LC-14, Cape Canaveral, Florida, for a 13 minute suborbital test flight of the Mercury Boilerplate capsule.
Test of ablation heatshield. The nose-cone capsule for Big Joe had no retrorocket package. The inner structure held only a half-sized instrumented pressure vessel instead of a pressurized cabin contoured to the outer configuration. Built in two segments, the lower half by Lewis and the upper by Langley, the main body of the spacecraft replica was fabricated with thin sheets of corrugated Inconel alloy in monocoque construction. This model of the Mercury capsule had more than one hundred thermocouples around the capsule skin to register temperatures inside and under the heatshield, sides and afterbody."
Posted on YouTube by Retro Space HD: link
"The Atlas 10-D was programmed to rise, pitch over horizontally to the Atlantic before it reached its 100-mile peak altitude, then pitch down slightly before releasing its corrugated nose cone at a shallow angle barely below the horizontal."
The flight was deemed a success and the second flight (Big Joe 2, Atlas-20D) was cancelled. Its launch vehicle was transferred to the Atlas-Able program.
SDASM Archives: 44408123, 44406619, 4501588, 44406606, 43332816, 43332828, 43332828, 43332804
NASA ID: B59-00556, B59-00557