RocHobby Critical Mass (standard speed) 1100mm - PNP "discontinued-product" The Carbon-Z P2 Prometheus biplane

The Carbon-Z P2 Prometheus biplane is capable of performing Skip's signature moves with power spare and the kind of control authority that's a pilot's dream

Broncos continue service as firefighting aircraft and flying specialized evaluation missions against ISIS

It also ensures that a range of realistic sound and light effects (headlights

more enjoyable flight

and installed for you

RocHobby Critical Mass (standard speed) 1100mm - PNP "discontinued-product" The Carbon-Z P2 Prometheus biplaneRocHobby Critical Mass Receiver Ready ROC 012 The RocHobby Critical Mass has become one of our favorite planes. This plane not only looks fantastic but it a true joy to fly. We think you will enjoy the split flaps, servoless electric retracts, and great all around flight characteristics. Unlike many stock planes, this one is not underpowered and has decent vertical. The Critical Mass is very well mannered and capable of aerobatics that would leave