Ivb in a sentence

Apollo 8 S-IVB rocket stage, shortly after separation Five hours after launch, Mission Control sent a command to the S-IVB booster to vent its remaining fuel through its engine bell to change the booster's trajectory.

In this case one would not make a drop-in version of the S-IVB, but a larger stage whose overall weight was the same as the S-IVB.

After Lunar Module (LM) separation, the S-IVB was intended to fly into solar orbit.

A nuclear engine was considered for some time as a replacement for the J-2 used on the S-II and S-IVB stages on the Saturn V and Saturn I rockets.

Borman became worried that the S-IVB was staying too close to the Command/Service Module and suggested to Mission Control that the crew perform a separation maneuver.

Following that line of reasoning, we can envision a replacement S-IVB stage that weighs 119,900 kg fully fueled, which would require much larger tanks.

In November 1964, von Braun proposed a more ambitious plan to build a much larger station built from the S-II second stage of a Saturn V. His design replaced the S-IVB third stage with an aeroshell, primarily as an adapter for the CSM on top.

Mission Control first suggested pointing the spacecraft towards Earth and using the Reaction Control System (RCS) thrusters on the Service Module (SM) to add convert away from the Earth, but Borman did not want to lose sight of the S-IVB.

Over the next 12 minutes before the TLI burn, the Apollo 8 crew continued to monitor the spacecraft and the S-IVB.

The company had for several years been proposing stations based on the S-IV stage, before it was replaced by the S-IVB.

The idea was to give children a way to identify with the mission by using humor. citation citation After the insertion into trans-Lunar orbit, the Saturn IVB third stage became a derelict object where it would continue to orbit the Sun for many years.

The proper operation of the S-IVB third stage of the rocket was crucial: in the last unmanned test, it had failed to re-ignite for TLI.

The roman numerals used correspond to the last digit of today's naming convention (e.g. the group 4 elements were group IVB, and the group 14 elements were group IVA).

The Saturn IVB third stage became a derelict object where it would continue to orbit the Sun for many years.

The S-IVB stage J-2 engine was restarted after Lunar Module extraction and propelled the stage into solar orbit by burning to depletion.

The S-IVB third stage injected the craft into Earth orbit, but remained attached to later perform the trans-lunar injection (TLI) burn that put the spacecraft on a trajectory to the Moon.

The S-IVB uses a common bulkhead between the tanks, so removing it to produce a single larger tank would increase the total load only slightly.

This study was followed by design of a larger orbital workshop to be built in orbit from an empty S-IVB Saturn upper stage, and grew into the Apollo Applications Program (AAP).

This task was difficult, because a large cloud of debris around the spacecraft, formed by the venting S-IVB, made it hard to distinguish the stars.

Thus, given the same mass as the original S-IVB, one can expect a moderate increase in overall performance using a nuclear engine.