@misc{indiciae1d1813a8d51b,
  title = {A model propulsion simulator for evaluating counter rotating blade characteristics},
  author = {Delaney, B. R. and Balan, C. and West, H. and Humenik, F. M. and Craig, G.},
  year = {1986},
  url = {https://ntrs.nasa.gov/citations/19870045333},
  note = {Source identifier: 19870045333}
}