It finally rolled over and sank at dawn on June 7, bringing an end to the battle. At the Battle of Midway, Japan lost four carriers, a cruiser, and 292 aircraft, and suffered 2,500 casualties. The U.S. lost the Yorktown, the destroyer USS Hammann, 145 aircraft, and suffered 307 casualties.
Cutting edge probably refers to the sharp edge of a knife or sword. This sharp edge is what goes first and cut through obstructions so the knife can go to vital target. â¦   Something or someone who is referred to as being on the cutting edge is someone who leads the way in a new direction or a new purpose.
A straight leading edge may be swept or unswept, the latter meaning that it is perpendicular to the longitudinal axis of the aircraft. As wing sweep is conventionally measured at the 25% chord line an unswept wing may have a swept or tapered leading edge.