British sounding rocket. Petrel was a larger sounding rocket built by Bristol Aerojet using the same launch technique as Skua. Three Chick rockets blasted the upper stage and payload out of a 10-m long launch tube. The 4.5 kN Lapwing second stage burned for 30 seconds. A unique aspect was that the Chick boosters could be recovered and reloaded with propellant.
AKA: Petrel. Payload: 18 kg (39 lb). Thrust: 20.00 kN (4,496 lbf). Gross mass: 130 kg (280 lb). Height: 3.34 m (10.95 ft). Diameter: 0.19 m (0.62 ft). Apogee: 140 km (80 mi).