Hypergolic propellant. Despite the low solubility of O 3 F 2 in liquid oxygen, it has been shown to be hypergolic with most rocket propellant fuels. The mechanism involves the boiling off oxygen from the solution containing O 3 F 2, making it more reactive to have a spontaneous reaction with the rocket fuel. The degree of reactivity is also ...

The LR87 was an American liquid-propellant rocket engine used on the first stages of Titan intercontinental ballistic missiles and launch vehicles. Composed of twin motors with separate combustion chambers and turbopump machinery, it is considered a single unit. The LR87 first flew in 1959. The LR87 was developed in the late 1950s by Aerojet.: 82,319 It was the first …