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It was supposed to be 30 minutes long.

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Wiki User

13y ago
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5mo ago

The radio blackout on Apollo 13 lasted about 1.8 minutes during re-entry when the spacecraft entered Earth's atmosphere at high speeds. This blackout period was due to the plasma sheath surrounding the spacecraft, which prevented radio signals from getting through.

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Q: How long was the radio black out on Apollo 13?
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