Short answers, pulled from the story.
The AS-201 test flight launched on the 26th of February 1966. This mission marked the first uncrewed test of an entire production Block I Apollo command and service module paired with the Saturn IB launch vehicle.
CSM-009 represented a specific design iteration known as Block I that lacked docking capability for lunar missions. Engineers modified this version by omitting crew couches, displays, and guidance systems to focus on structural integrity testing.
The S-IVB stage propelled the spacecraft to 365 miles above Earth's surface after the first stage lifted it to 40 miles altitude. The Saturn IB rocket used eight H-1 engines in its first stage and a liquid hydrogen-burning J-2 engine in its second stage.
Pressure in an S-IVB fuel tank fell below limits which caused the onboard computer to abort the launch four seconds before liftoff. Engineers later proved the vehicle could operate safely despite lower pressure and reinstated the launch window.
The capsule now sits on display at the Strategic Air Command & Aerospace Museum located in Ashland Nebraska. It underwent drop tests at White Sands Missile Range to verify structural integrity following the mission.