SecondStage constructor
SecondStage({})
Implementation
SecondStage({
required ThrustSeaLevel
thrust, // Make sure 'ThrustSeaLevel' constructor requires 'kN' and 'lbf' parameters
required Payloads payloads,
required bool reusable,
required num engines,
required num fuelAmountTons,
required num burnTimeSec,
}) {
this.thrust = thrust;
this.payloads = payloads;
this.reusable = reusable;
this.engines = engines;
this.fuelAmountTons = fuelAmountTons;
this.burnTimeSec = burnTimeSec;
}