Improved Orion
Improved Orion is the designation of an American
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...

 sounding rocket
Sounding rocket
A sounding rocket, sometimes called a research rocket, is an instrument-carrying rocket designed to take measurements and perform scientific experiments during its sub-orbital flight. The origin of the term comes from nautical vocabulary, where to sound is to throw a weighted line from a ship into...

. It has a maximum flight altitude of 85 km, a liftoff thrust of 7.00 kN, a total mass of 400 kg, a core diameter of 0.35 m and a total length of 5.60 m.
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