Schutzhaubes are protective covers for mine units of the BM series mines. They are bolted on over the mine units to protect them from shock due to impact. The design of the covers differed according to the types of units used in the BM 1000 mines.

SH 1 and 2.

Type - a truncated cone, rounded at its after end and fitted with a flange at its forward end. It is 26 inches in diameter at the flange, 20 inches in maximum diameter on the conical section, and 16 inches long. It is secured to the charge case by 10 studs. Magnetic needle, acoustic, or acoustic-pressure units may be fitted.

SH 8 and 9.

Type - a truncated con with a cylindrical base, rounded at its after end and fitted with a flange at its forward end. It is 26 inches in diameter at the flange, 19 inches in maximum diameter on the conical section, and 19 inches long. It is secured to the charge case by 10 studs. Ten equally-spaced drogue-securing lugs are fitted around the after end of the dome and a metal ring, 8 inches in diameter, is welded to this end. Magnetic needle, acoustic, or acoustic-pressure units may be fitted.

Figure 81 – BM 1000 Mine wiht SH 8 and 9

SH 7.

Type - hemisphere, 26 inches in diameter, fitted with eight holes, 3-1/5 inches in dia-meter, around its periphery. These holes give access to the eight studs which secure the dome to the charge case. It is fitted with eight equally-spaces brackets for securing the tail section. Only magnetic-acoustic units may be fitted.

Figure 82 – BM 1000 Mine with SH 7

SH 11.

Type - a truncated cone with a cylindrical base, rounded at its after end and fitted with a flange at its forward end. It is 26 inches in diameter at the flange, 19 inches in maximum diameter on the conical section, and 19 inches long. It is secured to the charge case by 10 studs. Magnetic needle, acoustic, or acoustic-pressure units may be fitted.

Figure 83 – Schutzhaubes