The mission , which the men named Apollo 1 in June , was originally planned for late 1966 ( perhaps concurrent with the last Gemini mission ) .
Delays in the spacecraft development pushed the launch into 1967 .
The mission , which the men named Apollo 1 in June , was originally planned for late 1966 ( perhaps concurrent with the last Gemini mission ) , but delays in the spacecraft development pushed the launch into 1967 .