ullages वाक्य
उदाहरण वाक्य
मोबाइल
- The whole stage separation system worked perfectly with the retrorockets firing on the first stage to decelerate it and ullage rockets on the S-IV firing to settle its fuel to aft of the stage.
- One of the ullage motors failed to fire, and when the main engine ignited for a four-minute burn to place the spacecraft into heliocentric orbit, the stage began to tumble out of control.
- They were used for three-axis control during coast phases, roll control during J-2 firings, and ullage for the second ignition of the J-2 engine and deorbit into the moon.
- This procedure, known as " ullage ", was intended to jolt the spacecraft slightly forward and force the descent engine fuel to the bottom of its tanks, eliminating bubbles and air pockets.
- "That area, fuel tank ullage, is not something there's a lot of information about, " said Bernard Wright, an engineer with Southwest Research Institute in San Antonio, Texas.
- The 11D33 engine was the world's first staged-combustion-cycle rocket engine, and also the first use of an ullage engine to allow a liquid-fuel rocket engine to start in space.
- For the first two unmanned launches, eight solid-fuel ullage motors ignited for four seconds to give positive acceleration to the S-II stage, followed by start of the five J-2 engines.
- The APS modules each contained four thrusters providing 150 pounds of thrust ( three for roll, pitch, and yaw; one for ullage ) and were fueled by a hypergolic mixture of dinitrogen tetroxide and monomethyl hydrazine.
- The firing of the ullage motors is used during stage separation of rocket and / or stabilization of a rocket when there are brief reductions in acceleration which could allow the liquid propellant to float away from the engine intakes.
- Also like some styles of Sherry, Vernaccia di Oristano is intentionally aged in oxidative conditions being stored in barrels that are only partially filled-- leaving substantial ullage or head space for oxygen to come into contact with the wine.
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