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Q: What is the angle of reentry?

Answer: Two angles are of primary importance during a safe reentry in Earth's atmosphere by the shuttle orbiter. At atmospheric entry, the alpha needs to be in the range plus 37 degrees to plus 43 degrees, with the orbiter's nose pitched above the airflow.

Q: What happens during reentry?

As the object falls, it hits and rubs against these particles, creating friction. This friction causes the object to experience drag, or air resistance, which slows the object down to a safer entry speed.

Q: Why is reentry into Earth's atmosphere so difficult?

LOWER TEMPERATURE REENTRY — SALON Its design is much lower in density than the space shuttle, once it has used up its fuel to get into orbit. So it slows down in the atmosphere at higher altitudes on the way down.

Q: Do astronauts blackout?

There actually are simple The steady state G forces for the Space Shuttle were relatively mild. Random Vibration can be a little harsh on the solids, but cushioning can damp that out. Modern day roller coasters can subject riders to double the G forces so no one should be blacking out on the Space Shuttle.

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What is radio blackout?

radio blackout. A prolonged period of fading or faded radio communications, primarily in the HF range from ionospheric changes because of increased solar activity, in particular solar flares of the C-class level or higher on the sunlit side of Earth. Radio blackouts due to solar flares can last from minutes to hours.

What causes blackout on reentry?

The communications blackouts that affect spacecraft re-entering the Earth's atmosphere, which are also known as radio blackouts, ionization blackouts, or reentry blackouts, are caused by an envelope of ionized air around the craft, created by the heat from the compression of the atmosphere by the craft.

At what altitude does reentry begin?

While the Earth's atmosphere will initially slow the spacecraft down from 20,000 mph to 325 mph, the parachutes are needed to get to a safe landing speed of 20 mph or less. Deployed at 9,000 feet in altitude and a vehicle speed o

At what speed does the space shuttle enter the atmosphere?

As a spacecraft re-enters the earth's atmosphere, it is traveling very much faster than the speed of sound. The aircraft is said to be hypersonic. Typical low earth orbit re-entry speeds are near 17,500 mph and the Mach number M is nearly twenty-five, M < 25.

What is the angle of reentry?

Answer: Two angles are of primary importance during a safe reentry in Earth's atmosphere by the shuttle orbiter. At atmospheric entry, the alpha needs to be in the range plus 37 degrees to plus 43 degrees, with the orbiter's nose pitched above the airflow.

What happens during reentry?

As the object falls, it hits and rubs against these particles, creating friction. This friction causes the object to experience drag, or air resistance, which slows the object down to a safer entry speed.

Why is reentry into Earth's atmosphere so difficult?

LOWER TEMPERATURE REENTRY — SALON Its design is much lower in density than the space shuttle, once it has used up its fuel to get into orbit. So it slows down in the atmosphere at higher altitudes on the way down.

Do astronauts blackout?

There actually are simple The steady state G forces for the Space Shuttle were relatively mild. Random Vibration can be a little harsh on the solids, but cushioning can damp that out. Modern day roller coasters can subject riders to double the G forces so no one should be blacking out on the Space Shuttle.

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