FACTOID # 120: Nepal’s flag isn’t square or rectangular. It’s a double triangle.
 
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Encyclopedia > Skip reentry

Skip reentry is a reentry technique involving successive "skips" off the atmosphere to slow the spacecraft to a reasonable speed before entering, which greatly decreases the huge amount of heat that is usually generated on faster descents. It is difficult to predict how many skips will be needed before reentry with this technique, which makes it hard to plan for the final landing.


  Results from FactBites:
 
SOYUZ! (3786 words)
The Vostok design was dropped (its pure ballistic reentry vehicle would impose crushing G loads on return from a circumlunar mission).
After the death of Khruschev, Chelomei's patron, a revised decision was made to accomplish the circumlunar mission with a single launch of a lightened Soyuz (designated "L1") atop a Proton booster for a loop around the moon.
It used aerodynamic lift during reentry to reduce G loads on the crew and fly to a designated recovery area.
Solar Skiff (14169 words)
Most reentry vehicles make use of a "blunt" or "lifting body" concept, in which a detached shock wave forms at some distance from the vehicle itself.
This allows most of the heat of reentry to be carried away from the vehicle, without ever coming in direct contact with the vehicle's skin.
During reentry the heat shield would char and flake off, carrying this remaining heat away from the spacecraft in a process known as ablation.
  More results at FactBites »


 

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