A refined version of the FVA-1 was produced as the FVA-2 Blaue Maus (Blue Mouse). This aircraft followed the arrangement and construction of the FVA-1, with a lower seating position to reduce drag, increased span/area to reduce wing loading and reduced empty weight. Several were produced to order and at least one of these aircraft was fitted with a wheeled undercarriage replacing the main skids and one other was used by Wolfgang Klemperer to research glider launching from balloons. The attempt was unsuccessful as the aircraft entered a flat spin and did not recover before hitting the ground.
