In an attempt to speed up the
Siemens-Schuckert D.III and reduce its cooling problems, the
Siemens-Shuckert D.IV featured a reduced-chord wing and a cut-away engine cowl (which was also used on late-model D.IIIs). The D.IV attempted to increase the D.III's speed with narrow-chord wings, which reduced drag at the cost of decreased climbing capability. Though seen only in small numbers, it was probably the best German fighter at the end of the war, from a technical standpoint.
The D.IV has an unusual feature: the left wings are some 7cm longer than the right to compensate for propeller torque.
This product comes in several scales: 1:144, 1:200, and 1:285/6mm/1:288.
At 1:285 there are two aeroplanes. They come with a seperable, translucent propeller disk rather than propeller blades, which are difficult to print at this scale. They are joined by disposable links to keep the price down, since single-part models are more affordable. You can break the links with nail clippers, wire cutters, or similar.
DESIGNER NOTE:
Models at scales smaller than 1:144 may no longer be available. Shapeways discontinued the material for which they were designed, and the newer materials require that each and every model be adjusted to thicken surfaces like wings. If you are interested in a particular model in a small scale, please let me know and I will prioritize it higher in the queue.
For more details and gaming information on the D.IV, see
https://linen.miraheze.org/wiki/Siemens-Schuckert_D.IV.