Apollo 7

Apollo 7
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Name	Apollo 7
Mission type	Crewed Earth orbital CSM test
Operator	NASA
COSPAR ID	1968-089A
SATCAT	03486
Mission duration	10 days, 20 hours, 9 minutes, 3 seconds
Spacecraft	CSM-101
Manufacturer	North American Aviation
Launch mass	36,419 pounds (16,520 kg)
Launch date	October 11, 1968, 15:02:45 UTC
Launch rocket	Saturn IB SA-205
Launch site	Cape Kennedy LC-34
Landing date	October 22, 1968, 11:11:48 UTC
Landing site	North Atlantic Ocean
Orbit reference	Geocentric orbit
Orbit regime	Low Earth orbit
Orbit periapsis	140 miles (227 km)
Orbit apoapsis	183 miles (295 km)
Orbit inclination	31.6 degrees
Orbit period	89.9 minutes
Programme	Apollo program
Previous mission	AS-203
Next mission	Apollo 8

Apollo 7 was the first crewed mission of the Apollo program and a pivotal test of the Apollo Command/Service Module in Earth orbit. Launched on October 11, 1968, the mission restored confidence in NASA's lunar ambitions following the tragic Apollo 1 fire. The successful eleven-day flight proved the spacecraft's systems and cleared the way for the historic Apollo 8 mission to orbit the Moon just two months later.

Mission background

The mission was a direct response to the devastating cabin fire during a pre-launch test for Apollo 1 in January 1967, which killed astronauts Virgil I. "Gus" Grissom, Edward H. White II, and Roger B. Chaffee. In the aftermath, the Apollo Command/Service Module underwent extensive redesigns by its prime contractor, North American Aviation, under intense scrutiny from NASA and Congress. The primary objective was to rigorously test the redesigned Block II command module's systems, including its crucial Service Propulsion System engine, in the demanding environment of space. This flight was essential for verifying the spacecraft's habitability and performance before committing to more ambitious lunar missions, using the proven Saturn IB launch vehicle from Launch Complex 34.

Crew

The crew consisted of veteran astronauts, all of whom had been part of the backup team for the ill-fated Apollo 1. Mission Commander Walter M. Schirra, a Navy captain and veteran of both Mercury-Atlas 8 and Gemini 6A, commanded the flight. Senior Pilot Donn F. Eisele and Pilot R. Walter Cunningham, both on their first spaceflight, rounded out the crew. The trio was known for their technical expertise, which was critical for the complex test objectives. The backup crew included Thomas P. Stafford, John W. Young, and Eugene Cernan, all of whom would later command their own Apollo missions. The flight also featured the first live television broadcasts from an American spacecraft, with the crew famously holding up a sign reading "Hello from the lovely Apollo room, high atop everything."

Mission highlights

Launched on October 11, 1968, the Saturn IB performed flawlessly, inserting the CSM-101 spacecraft into a nominal low Earth orbit. The crew immediately began a series of critical tests, including the first live ignition of the Service Propulsion System engine in space, which was vital for future translunar injections and lunar orbit maneuvers. They performed eight such firings, demonstrating the engine's reliability. The mission extensively tested the environmental control and guidance systems, and completed a simulated Transposition, docking, and extraction maneuver with a dummy Lunar Module. Despite the technical success, the flight was marked by considerable crew discomfort, as all three men developed severe head colds, and by notable tension between the irritable crew and Mission Control in Houston over schedule and minor issues.

Legacy and significance

Despite the interpersonal friction, NASA deemed Apollo 7 a complete engineering success, achieving 101% of its planned objectives. The mission validated the safety and performance of the completely redesigned Apollo Command/Service Module, which had been the program's greatest uncertainty. This success gave NASA the confidence to make the bold decision to send Apollo 8 to orbit the Moon in December 1968, fundamentally altering the course of the Space Race with the Soviet Union. The live television broadcasts pioneered a new era of public engagement with spaceflight. Apollo 7 proved the essential command and service module systems, directly enabling all subsequent Apollo lunar landing missions and solidifying the spacecraft's design that would later be used for the Skylab and Apollo–Soyuz Test Project missions. Category:Apollo program Category:Human spaceflights Category:1968 in spaceflight