The First ESR-73 Hot Fire Test

Aerojet Rocketdyne performed the first hot fire test of its ESR-73 solid rocket motor, at the company’s Engineering, Manufacturing and Development (EMD) facility in Camden, Arkansas. According to Aerojet Rocketdyne, eSR-73 is ~132 cm (52 inches) in diameter and weighs roughly 3538 kg (7,800 pounds), being designed as “an upper stage that can function as a second or third stage for a variety of large solid rocket motor applications”.

Credit: Aerojet Rocketdyne