Perhaps the most tell-tale distinguishing feature between the EI/EII and EIII was the shape of the cowl cheeks. On the the earlier models they look squarish but on the EIII they were given the curved tapering looks we've come to expect on an eindecker. The SR model has the curved cowl cheeks. Another different is that the EI and EII used the 7 cyclinder Uberursal rotary while the EIII used the slightly more poweful 9 cylinder. Oh and to off-set the weight of the larger engine, the rear of the fuse was lengthened by about a foot or so which gives the EIII a longer, sleeker look. This may have been the main reason for SR choosing the "E1" designation for their kit.

In the end though it doesn't matters much what they call it. The differences between this sports scale kit and the actual eindecker are greater than any minor differences between the EI/EII and EIII. It's still a great looking model though and ought to be tons of fun at the field.