@misc{indiciae8358e30fa464,
  title = {Rotor performance characteristics from an aeroacoustic helicopter wind-tunnel test program},
  author = {Hoad, D. R. and Elliott, J. W. and Orie, N. M.},
  year = {1986},
  url = {https://ntrs.nasa.gov/citations/19860015194},
  note = {Source identifier: 19860015194}
}