Contents
Why does the space shuttle go so fast on reentry?
During re-entry, the shuttle is going so fast, it compresses the air ahead of it. The compression of the air layers near the leading edges of the shuttle is quick, causing the temperature of the air to rise to as high as 3000 degrees Fahrenheit! Being in contact with the shuttle, it heats the shuttle’s surface.
What is the shuttle speed on reentry?
7700 m/s
The Shuttle has kinetic energy due to its speed of 7700 m/s and potential energy due to its altitude. It must lose all this energy in only about one-half hour to come to a full stop on the runway (at Earth’s surface).
What happens if the spaceship re enters at the wrong angle?
If the entry angle is too steep, deceleration forces (the braking effect due to atmospheric friction) will become too large and the spacecraft can break up. Additionally, the steeper the entry angle, the higher the heat flux. Conversely, if the entry angle is a bit too shallow, other unpleasant things can happen.
Why do things burn on reentry?
The answer is velocity and compression. Incoming objects are moving at incredible speeds, and as they do they’re compressing the air in front of them. According to the gas laws of chemistry, compressing a gas heats it up, and there’s a whole lot of compressing going on during reentry.
Can you skip off the atmosphere?
The air is a fluid as well, and a lifting body can in fact skip in the same way as a stone does in water. Air has a very substantial “existence”, especially as you move faster. However lift is not required for “skipping” out of the atmosphere, since unlike the apparent surface of a pond, the atmosphere is curved.
What does it feel like to re enter the atmosphere?
And what you realize is you’re looking from the inside of a fireball outward. You’re inside the air that’s being ripped apart as you’re re-entering the atmosphere. Very little feeling, no shaking, no vibration, but you just see the heat that’s being generated by the space shuttle entering the atmosphere.
Is the movie Apollo 13 historically accurate?
Experts agree that Apollo 13 is a largely accurate depiction of the true story. Not only did Apollo 13 get the science right, but the film accurately portrayed the events of the real space disaster by adhering to the timeline as recorded in Jim Lovell’s book.
Did Apollo 13 astronauts really take off their biomed sensors?
Yes he did remve his sensors, however youneed to remember the movie emphasised many of the events for dramatic purposes. For example the report about venting gas took place a considerable time after the explosion while in the movie it is reported within just a few minutes.
How is the Space Shuttle used for re-entry?
The Shuttle uses a rocket propulsion system to get into orbit, but during re-entry the aircraft is actually an un-powered glider. Small steering rockets are used for maneuvering early in the re-entry because the low density of the air at altitudes above 50 miles makes aerodynamic surfaces ineffective.
How does a space shuttle land on the ground?
Shuttle flight path for landing When the orbiter is 2,000 ft (610 m) above the ground, the commander pulls up the nose to slow the rate of descent. The pilot deploys the landing gear and the orbiter touches down. The commander brakes the orbiter and the speed brake on the vertical tail opens up.
What was used to slow down the Space Shuttle?
The OMS were used for making orbital changes. Both systems burned the same hypergolic mixture (monomethylhydrazine (MMH) and dinitrogen tetroxide (N2O4)). If the OMS had failed, the RCS jets could have, in theory, been used to slow the shuttle enough for reentry. Some answers have said that the orbiter would pitch down 140° for the flip.
How long does it take to power down a Space Shuttle?
After landing, the crew goes through the shutdown procedures to power down the spacecraft. This process takes about 20 minutes. During this time, the orbiter is cooling and noxious gases, which were made during the heat of re-entry, blow away. Once the orbiter is powered down, the crew exits the vehicle.