private static List <ISpaceCraft> BuildScaledBfrGto(IMassiveBody planet, MissionConfig config, string craftDirectory)
        {
            var carousel = new Carousel(craftDirectory, planet.Position + new DVector2(0, -planet.SurfaceRadius) + config.PositionOffset, planet.Velocity, config.PayloadMass);

            var ship = new ScaledBFS(craftDirectory, DVector2.Zero, DVector2.Zero, 0, 823000);

            var booster = new ScaledBFR(craftDirectory, DVector2.Zero, DVector2.Zero);

            carousel.AddChild(ship);
            ship.SetParent(carousel);
            ship.AddChild(booster);
            booster.SetParent(ship);

            return(new List <ISpaceCraft>
            {
                carousel, ship, booster
            });
        }