 After sharing another Albatros two-seater on 20 August, Pentland led a raid on Marcke aerodrome, home of Baron von Richthofen's "Jasta" 11, on 26 August.On the way, he helped bring down a DFW C.V, then achieved complete surprise at the airfield, which he and his flight proceeded to shoot up.On the return journey, he strafed an enemy train until his guns jammed and then, having managed to clear them, engaged two more German scouts.