Fuel tank(s) capable of being jettisoned should be carried in the manner of the prototype. A parachute may drag a cargo from a rear door. A braking parachute may be deployed on landing cargo, if this was a feature of the prototype. The drop should be performed with the model in level flight in front of the judges.


  1. Beginning and ending of maneuver with scale operation were not called out.
  2. Tank(s) not securely attached to model, have visible oscillation in slipstream prior to release.
  3. Tank(s) do not tumble.
  4. Tank(s) do not fall clearly away from model at release.
  5. Model not in level flight at release.
  6. Fuel tanks(s) not released in front of judges.