Outer Planet Missions with Electric Propulsion Systems—Part I

Figure 8

Ratio $m_f/m_i$ and $\mathrm{\Delta }V$, considering REP for a mission to Pluto, with effective specific power $(P)=6.67$ W/kg, TOF = 10 years, $V_{\inf \hspace{0.17em}}=\mathrm{\hspace{0.17em}\hspace{0.17em}}6$ km/s.