Eli5: how are ICBM tested for their range without causing false alarms?

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Say the usa and soviet union in cold war. History has records of incidents were dalse alarms (including one from the sun) almost started nuclear armageddon.

How did they keep testing missiles (ICBM) with longer and longer ranges without it being detected as a real missle?

Not to mention there are still states that are neighbored by hostile countries and still manage to do their ICBM tests with ranges encompassing multiple continents. How do they manage it?

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6 Answers

Anonymous 0 Comments

Presumably quite a bit of it can come down to relatively straightforward maths too. If you know you’ve got a rocket design that has been tested to a certain range then you develop a propellant which burns with the same thrust for 20% longer you can work out what the additional burn time means for the range and validate with static testing, none of which require a full blown launch.

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