Aircraft or Helicopters (7/7) List item Submitted to "7 Possible Explanations for Crop Circles" Approved by Jadelynx March 3, 2018, 8:16 pm 13 Views Share Tweet Pin No one has ever been able to duplicate a crop circle using human made aircraft or helicopters. MoreReport Item navigation Previous submission Next submission View full list Share Tweet Pin Written by Jadelynx pinterest twitter