[Dan_San_Abbott]

Hi Mode one:
I to like the Pfalz D.III/IIIa design, along with the Nieuport 28c1. In my humble opinion, they were the two most beautiful fighters of WW1. The both have the elegance of line and porportion, they were esthetically a delight to the eye.
I sure would like to see the drag coefficients of the Alb.D.III, D.V, Pfalz D.III and D.XIIIa and the Fok.D.VII. For comparison to the Sopwith 1F1 Camel, SPAD IIIc1 and the S.E.5a, geared Hisso and Viper. The difference in radiators would have an effect on the drag coefficient.
The Allies had the advantage in the Power to weight ratios for the Hisso powered SPAD XIIIc1 and the S.E.5a. both airplanes had a smaller footprint, so the drag coefficient would be lower.
The Hisso was such a suberb engine, I still wonder why they did not copy it, instead of designing V-8 engines with individual steel cylinders with welded on sheet steel water jackets.
Blue skies Mode one,
Dan-San
Dan-San