\documentclass[10pt,border=1pt,crop,multi=false,tikz,class=scrartcl]{standalone} \usepackage[T1]{fontenc} \usepackage[utf8]{inputenc} \usepackage{lmodern} \usepackage{setspace} \usetikzlibrary{calc, positioning, arrows} \renewcommand*{\familydefault}{\sfdefault} \renewcommand*\printatom[1]{\ensuremath{\mathsf{#1}}} \tikzset{ vbox/.style = {draw, rectangle, rounded corners, text centered, black, text width=7.5em} } \makeatother \begin{document} \begin{tikzpicture}[node distance=3.75cm, thick, >=stealth'] \node (a1) [vbox] {Wright cyclone\\ R--1820\\9-cylinder air-cooled radial,\\ca.\ 1931}; \node (b2) [vbox, below = 1.2cm of a1] {Shvetsov\\ M--25\\ 9-cylinder air-cooled radial,\\ca.\ 1934. 13,888 built}; \node (b1) [vbox, left = 1.5cm of b2] {Shvetsov\\ M--80\\ 14-cylinder twin-row, air-cooled radial,\\ca.\ 1939. Cancelled}; \node (b3) [vbox] at ($(b2)+(3.5cm,-1cm)$) {Bazarov\\ M--65\\ 9-cylinder air-cooled radial,\\ca.\ 1939. Cancelled}; \node (b4) [vbox] at ($(b2)+(7cm,0)$) {Shvetsov\\ M--70\\ 18-cylinder, air-cooled radial,\\ ca.\ 1938. Cancelled}; \node (c1) [vbox, below of=b1] {Shvetsov\\ M--81\\ 14-cylinder twin-row, air-cooled radial,\\ca.\ 1940. Cancelled}; \node (c2) [vbox, below of=b2] {Shvetsov\\ M--62\\ 9-cylinder air-cooled radial, two-speed GCS\\ca.\ 1939. 40,361 built}; \node (c4) [vbox, below of=b4] {Shvetsov\\ M--71\\ 18-cylinder, air-cooled radial,\\ ca.\ 1942. Cancelled}; \node (d1) [vbox, below of=c1] {Shvetsov\\ ASh--82\\ 14-cylinder twin-row, air-cooled radial, two-speed GCS,\\ca.\ 1941. 57,898 built}; \node (d2) [vbox, below of=c2] {Shvetsov\\ M--63\\ 9-cylinder air-cooled radial\\ca.\ 1939. 3,087 built}; \node (d4) [vbox, below of=c4] {Shvetsov\\ M--72\\ 18-cylinder, air-cooled radial,\\ ca.\ 1945. Cancelled}; \node (e1) [vbox, below of=d1] {Shvetsov\\ ASh--83\\ 14-cylinder twin-row, air-cooled radial, \\ca.\ 1945. Small numbers}; \node (e2) [vbox, below of=d2] {Shvetsov\\ M--64\\ 9-cylinder air-cooled radial\\ca.\ 1939. Cancelled}; \node (e4) [vbox, below = 1.5cm of d4] {Shvetsov\\ ASh--73\\ 18-cylinder, air-cooled radial,\\ ca.\ 1945. 14,310 built}; \node (f1) [vbox, below of=e1] {Shvetsov\\ ASh--84\\ 14-cylinder twin-row, air-cooled radial, \\ca.\ 1945. Small numbers}; \node (f2) [vbox, below of=e2] {Shvetsov\\ ASh--21\\ 7-cylinder air-cooled radial\\ca.\ 1946. Cancelled}; \draw [-stealth] (a1) -- (b2); \fill ($(a1)!.5!(b2)$) circle [radius=2pt]; \draw [->] ($(a1)!.5!(b2)$) -| (b1); \draw [->] (b2.0) -- (b3.180); \draw [->] ($(a1)!.5!(b2)$) -| (b4); \draw [->] (b1) -- (c1); \draw [->] (b2) -- (c2); \draw [->] (b4) -- (c4); \draw [->] (c1) -- (d1); \draw [->] (c2) -- (d2); \draw [->] (c4) -- (d4); \draw [->] (d1) -- (e1); \draw [->] (d2) -- (e2); \draw [->] (d4) -- (e4); \draw [->] (e1) -- (f1); \draw [->] (d1.south east) -- (f2.north west); \draw [->] (c2.east) -- +(1cm,0pt) |- (f2.east); \end{tikzpicture} \end{document}