Rotary cutting deck with asymmetric rear discharge opening

A rotary cutting deck, comprising:

• a circular inverted dish-shaped cutting chamber;
• a hydrostatic motor mounted to a recess in a top surface of the deck;
• the motor turning a rotary cutting blade attached to a generally vertically aligned spindle extending from the motor under the deck;
• a framework supporting the cutting chamber and carrying a front pair of rollers and a rear roller;
• and
• an asymmetric rear discharge opening in a rear wall of the cutting chamber;
• a second end of the opening having a different shape than a first end of the opening;
• the opening adjacent the second end having a larger cross sectional area than the opening adjacent the first end;
• and a portion of the rear wall of the cutting chamber forming a band below the opening..

A rotary cutting deck, comprising:

• an inverted dish-shaped cutting chamber covering a rotary cutting blade rotating in a generally horizontal plane and powered by a hydrostatic motor;
• the cutting chamber having a rear wall with an asymmetric rear discharge opening that increases in height and cross section in the direction of rotation of the rotary cutting blade;
• and
• a band integral with and extending around the rear wall of the cutting chamber in the generally horizontal plane of the rotary cutting blade.