 Nyorai kuenderera mberi kweiyi ndima - MuAmerican Revolutionary War ya1775 kusvika 1783, Admiral Keppels kusiya basa panguva yedambudziko rakatevera Hondo yeUshantmuna 1778 akasiya nzvimbo isina vanhu yokuva mutungamiriri weChannel Fleet. Musi wa 23 Ndira 1778 Darby akaitwa rear-admiral uye musi wa 19 Kurume 1779 akasimudzirwa kuva vice-admiral, nekuda kwekubatana kwake naLord Sandwich, First Lord weAdmiralty, panguva yedare rehondo raAdmiral Palliser. Nokudaro nenzira isingakarirwi akauya kuzoraira Channel Fleet muna 1780 panguva yenjodzi huru youmambo. 