Javelin (Argo D-4) was the designation of an American sounding rocket. The four stage Javelin rocket had a payload of around 125 pounds (57kg), an apogee of 1100 kilometers, a liftoff thrust of 365 kilonewtons (82,100 lbf), a total mass of 3,385 kilograms (7,463 lb), and a core diameter of 580 millimeters (22.8 in).[1] It was launched 82 times between 1959 and 1976.
This vehicle consisted of an Honest John first stage plus two Nike Ajax stages plus a X-248 stage.[1] First NASA use in 1959. Could lift 45 kg (100 lb) to 800 km (500 mi).[2]
It was launched 85 times between 1959 and 1976.[1]
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