what's the cycle of bipropellant rocket engines with no less than 2.9e+06 thrust at sea level?
(AND spaceflight.rocket_engine_cycle (JOIN (R spaceflight.bipropellant_rocket_engine.engine_cycle) (ge spaceflight.rocket_engine.thrust_sea_level 2.9e+06^^http://www.w3.org/2001/XMLSchema#float)))