| 000 | 00673pam a2200205a 44500 | ||
|---|---|---|---|
| 005 | 20200623144354.0 | ||
| 008 | 200623b xxu||||| |||| 00| 0 eng d | ||
| 040 | _cIIT Kanpur | ||
| 041 | _aeng | ||
| 100 | _aO'Bryan, Thomas C. | ||
| 245 | 1 |
_aAn investigation of effect of downwash from a vtol aircraft and helicopter in the ground environment [NASA TN D-977] _cThomas C O'Bryan |
|
| 260 |
_bNasa _c1961 _aWashington, D.C. |
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| 300 | _a19p | ||
| 440 | _aNational aeronautics and space Administration (NASA) | ||
| 500 | _aBound With Nasa Tn D-971-976,978-980 | ||
| 505 | _aTechnical Note D-977 | ||
| 650 | _aInvestigation | ||
| 650 | _aAircraft | ||
| 942 | _cREF | ||
| 999 |
_c399185 _d399185 |
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