The Wyvern-II has three stages, and is 27.9 metres tall, 2.5 metres in diameter, and weighs about 140,000 tonnes. It is capable of luanching a satellite weighing around 1 tonne, in an orbit as high as 300 km. The Wyvern-II launched the Axiom Research Satellite Program between 2001 - 2007, and several communications satellites since.