TY  - RPRT
TI  - Charts for estimating downwash behind rectangular, trapezoidal, and triangular wings at supersonic speeds
AU  - Haefeli, Rudolph C
AU  - Mirels, Harold
AU  - Cummings, John L
PY  - 1950
UR  - https://ntrs.nasa.gov/citations/19930082761
ID  - 19930082761
ER  -