Table: torsion_engine_specs
Columns: length_weight_of_missile
diameter_of_torsion_spring
height_of_torsion_spring
machine_length
machine_width

Question: When the torsion spring diameter is 38.4cm what would be the length or weight of the missile
SQL: SELECT "length_weight_of_missile" FROM torsion_engine_specs WHERE "diameter_of_torsion_spring" = '38.4cm'