~~The SdKfz 2, better known as the Kleines Kettenkraftrad HK 101 or Kettenkrad for short (Ketten = chain/tracks, krad = military abbreviation of the German word Kraftrad, the administrative German term for motorcycle), started its life as a light tractor for airborne troops. The vehicle was designed to be delivered by Junkers Ju 52 aircraft, though not by parachute. The vehicle had the advantage of being the only gun tractor small enough to fit inside the hold of the Ju 52, and was the lightest mass-produced German military vehicle to use the complex Schachtellaufwerk overlapped and interleaved road wheels used on almost all German military half-track vehicles of World War II.
Steering the Kettenkrad was accomplished by turning the handlebars: Up to a certain point only the front wheel would steer the vehicle. A motion of the handlebars beyond that point would engage the track brakes to help make turns sharper. It was also possible to run the vehicle without the front wheel installed and this was recommended in extreme off-road conditions where speed would be kept low.
The SdKfz 2 was designed and built by the NSU Werke AG at Neckarsulm, Germany. First designed and patented in June 1939, it was first used in the invasion of the Soviet Union in 1941. Later in the war Stoewer from Stettin also produced Kettenkrads under license, accounting for about 10% of the total production.
Most Kettenkrads saw service on the Eastern Front, where they were used to lay communication cables, pull heavy loads and carry soldiers through the deep Russian mud. Later in the war, Kettenkrads were used as runway tugs for aircraft, especially for the Me 262 jet fighters. In order to save aviation fuel, the aircraft would be towed to the runway, rather than taxiing under their own power.
The vehicle was also used in the North African theater and on the Western Front.
The Kettenkrad came with a special trailer (Sd.Anh.1) that could be attached to it to improve its cargo capacity.
Being a tracked vehicle the Kettenkrad could climb up to 24° in sand and even more on hard ground, as long as the driver had the courage for it.
Only two significant sub-variations of the Kettenkrad were constructed, and production of the vehicle was stopped in 1944, at which time 8,345 had been built.
~~The 8.8 cm Raketenwerfer 43 (German: "Püppchen" = "dolly") was an 88 mm calibre reusable anti-tank rocket launcher developed by Nazi Germany during World War II.
It was given to infantry to bolster their anti-tank capability. The weapon was fired from a small two-wheeled gun carriage which fired a rocket-propelled, fin-stabilized grenade with a shaped charge warhead, similar to the grenade of the Panzerschreck but not the same. Approximately 3,000 units were completed from 1943 to 1945. It was made in much smaller numbers than either the Panzerschreck, which was based on the American Bazooka, or the Panzerfaust, which was a disposable recoilless rifle firing an anti-tank grenade. This is partly because it was realized that a simple hollow tube with an ignition device was all that was needed to launch the 88 mm rocket, rather than an elaborate miniature artillery piece with carriage and breech. Due to the carriage and better sights, the accuracy was better, and the range more than double that of the Panzerschreck.
