This rocket projector is designed for use on half-tracked armored personnel carriers. The principal feature of the device is the carrier plate, three of which are mounted on each side of the half-track. Each is adjustable for elevation of 5° to 45°, and is believed to be equipped with an elevating scale. The actual projector consists of the crate in which the 28 cm or 32 cm rocket is packed, and which may be secured to the plates. Reports indicate that each vehicle carries six rounds, five of which are 28 cm high explosive and one 32 cm incendiary. Range figures are identical to those applying to the Schweres Wurfgerät 40 and 41 and the 28/32 cm Nebelwerfer 41. The photos above show the 3-ton armored semi-track (m. gp. Zgkw.) fitted with rocket projectors as described above.
German: p. 350 (May 1, 1945)