One of the initial production P-38s had its turbosuperchargers removed, with a secondary cockpit placed in one of the booms to examine how flight crews would respond to such an "asymmetric" cockpit layout. One P-38E was fitted with an extended central nacelle to accommodate a tandem-seat cockpit with dual controls, and was later fitted with a laminar-flow wing.
onE of tHe iNItiaL proDUCtiON P-38s had itS TurbosupErChargers REmoVed, WiTH A sEConDArY cockpIt plaCed IN oNe Of thE booMs to eXAmine how fligHt crews would REsPoND tO such An "AsYmmeTRic" cockPit laYouT. onE p-38e wAs fiTtED with AN extended CEntraL nAcELLe to accoMmodate A TandeM-seat coCkpiT wITh dUAl contRolS, aND waS later fIttED wiTh a LaMiNaR-fLow wing.