That's right mate, the Rolls-Royce RZ-2, one of a pair (collectively known as RZ-12) that powered the Blue Streak ICBM and later the (every time successful) first stage of the European ELDO Europa space launch vehicle. Not many rocket engines achieve a 100% success rate, pity it was let down by short sighted politicians as usual
The engine shown was recovered from the Simpson Desert after a test flight from Woomera
Lightning Mate has control 