the fuel unsymmetrical dimethylhydrazine is used by what bipropellent rocket that has a dry mass under 3660.0?
(AND spaceflight.bipropellant_rocket_engine (AND (JOIN spaceflight.bipropellant_rocket_engine.fuel m.017q1y) (lt spaceflight.rocket_engine.dry_mass 3660.0^^http://www.w3.org/2001/XMLSchema#float)))