| 摘要 |
An anchor spade for fitting to the rear end of a trail leg or to a firing platform of a howitzer is described, the anchor spade being for engaging and digging into the ground under the rearward recoil forces of firing, the anchor spade comprising: a rearwardly facing blade plate having a tip for digging into the ground under the forces of recoil and a rearwardly facing top plate mounted above the blade plate so as to be generally parallel with the ground, in use, when the blade plate is embedded in the ground, the spade blade angle lying in the range from 35 DEG to 55 DEG and the spade forward angle lying in the range from 70 DEG to 110 DEG . |
