Very Low-Power Actuation Devices

A munition comprising:

• a control surface actuation device comprising:
• an actuator comprising two or more pistons, each of the pistons being movable between an extended and retracted position, the retracted position resulting from an activation of each of the two or more pistons;
• and
• a movable rack having a portion engageable with a portion of the two or more pistons to sequentially move the rack upon activation of each of the two or more pistons;
• and
• a control surface operatively connected to the rack such that movement of the rack moves the control surface;
• wherein the portion of the rack is a plurality of spaced portions and the portion of the piston is an end portion of the piston exposed when the piston is in the extended position.

A munition comprising:

• a control surface actuation device comprising:
• an actuator comprising two or more pistons, each of the pistons being movable between an extended and retracted position, the retracted position resulting from an activation of each of the two or more pistons;
• and
• a movable rack having a portion engageable with a portion of the two or more pistons to sequentially move the rack upon activation of each of the two or more pistons;
• and
• a control surface operatively connected to the rack such that movement of the rack moves the control surface;
• wherein the movable rack is linear and moves linearly.