\begin{tikzpicture}[>=stealth']
  \begin{scope}[rotate=30]
  \fill[blue!20] ($(-2*1.45,-2*1.45)-(7.5,0.5)$) rectangle ($(2*1.45,2*1.45)+(0.5,0.5)$);
  \draw[<->]  ($(2*1.45,-2*1.45)+(0.5,-0.5)$) --  ($(2*1.45,2*1.45)+(0.5,0.5)$) node[midway,right] {$\left(W+h\tan(\mathrm{fov/2})\right){\tan(\theta)+1\over\sqrt{\tan(\theta)^2+1}}$};
  \draw[->,ultra thick] (-6,0) -- (-3,0) node[midway,above] {wind};
  \end{scope}
  \fill[red!20] ($(-2,-2)-(0.5,0.5)$) rectangle ($(2,2)+(0.5,0.5)$);
  \fill[green!10] (-2,-2) rectangle (2,2);
  \draw[<->] (-2,0) -- (2,0) node[midway,above] {[[W]]};
  \draw[->] ($(2,-1)-(0.25,0)$) -- (2,-1);
  \draw (2,-1) -- (2.5,-1);
  \draw[<-] (2.5,-1) -- (3.5,-1) node[above] {$h\tan(\mathrm{fov/2})$};
\end{tikzpicture}
