Hi,
as I know,the Hansa-Brandenburg KDW appeared in three variants at first,then developed into KDW/2,KDW/3,KDW/4 & KDW/5 or V,what
is the differences ?.
The KDW was essentially a float plane variant of the KD or D I single seat fighter. A total of 58 KDW fighters (incl. prototypes) were built, in five production batches with little differences between them.
All were called KDW, and designations such as KDW/2, KDW/3, … didn't exist. All were classified as ED seaplanes, except those of the last batch which were E2MG.
The prototype was Marine Nr. 748 with a Benz Bz.III, 150 hp.
The 1st production batch (Marine Nr. 783-784), also with Benz Bz.III, 150 hp, were additional prototypes.
The 2nd production batch (Marine Nr. 912-921) had the Maybach IR (Mb.III), 160 hp.
The 3th production batch (Marine Nr. 1067-1076) was built with the Benz Bz.III, 150 hp, or with the Daimler (Mercedes) D.III, 160 hp.
The 4th production batch (Marine Nr. 1380-1394) had the Maybach IR (Mb.III), 160 hp, and additional interplane struts.
The 5th production batch (Marine Nr. 1554-1573) had the Maybach IR (Mb.III), 160 hp, and additional interplane struts, but also a fixed fin, and was armed with two machine guns (hence E2MG).