It's always said that Germany was the country with the most advanced rocket science in WWII, but it also seems that they weren't as successful in the practical applications. I've always been mystified by the Wurfgranate 21, those huge rockets often mislabelled as mortars underslung in large pipes under the wings of German airplanes. Despite their impressive size, they look so clumsy when compared to the rockets carried by a Typhoon or Sturmovik that one wonders why they didn't just copy them.
Well, I just came across this website,
http://www.tarrif.net/wwii/guides/a2g_rockets.htm
looking for the above rocket, and made some startling discoveries:
The site is poorly organized, you have to continue reading until the last page and you find a parent directory with scanned images from a paper
http://www.tarrif.net/wwii/img/manua..._rocket_study/
you have to download each page and view it on an image viewer to read it.
Summing it up:
-Rockets are horribly unaccurate weapons, in fact allied rockets sucked, and it was the Germans the ones that improved on the design with the R4M wich fortunately came too late.
-The myth of the Typhoon as a tank buster. In fact, fighter bomber contribution in Normandy was "interdiction" of roads rather than actual destruction. The real success was in destroying the truck transport rather than armored vehicles. Germans and Soviets realized rockets were no good and switched to cluster bombs.
-Nothing could beat a Stuka in precision bombing. Even the late war Typhoons and Thunderbolts were unable of diving so steeply and bomb with such precision. The Stuka failure is that it was unable to defend itself and needed air supremacy to operate, but the concept was a valid one and the accuracy unmatched until modern guided bombs were developed. And the Ju87G was a much better tank buster than the Typhoon, probably the Henschel 129 as well.