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What makes Ada the language of choice for the ISS's safety-critical systems?
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78 votes

This Wikibooks link lists its strong points, some of which are: An extremely strong, static and safe type system, which allows the programmer to construct powerful abstractions that reflect the ...

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Are there any rocket engines in current or former use that aren’t normally restarted in flight, but have the capability for an emergency restart?
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4 votes

The Lunar Module Ascent Engine. This document on page 66 states: 3-4. 4. ASCENT PROPULSION SECTION The ascent propulsion section consists of a constant-thrust , pressure-fed rocket engine , one fuel ...

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