TY  - RPRT
TI  - A technique using a nonlinear helicopter model for determining trims and derivatives
AU  - Ostroff, A. J.
AU  - Downing, D. R.
AU  - Rood, W. J.
PY  - 1976
UR  - https://ntrs.nasa.gov/citations/19760017177
ID  - 19760017177
ER  -