Space Wolf Omnibus pg. 15

He reached down and grasped the handle on the top of the turret with both hands then braced himself. He strained with all the strength of his enhanced muscles and tugged. Nothing happened. He threw more and more power into the servo-motors of his armour until the muscle fibres were almost overloaded and the maintenance readouts superimposed on his field of vision were far into the red. Slowly at first, with an awful grinding sound, the hatch began to come away from its hinges. Ceramite buckled under the terrible strength of the Space Wolf. Ragnar almost overbalanced as the hatch cover came free in his hands.