By Cliff Lethbridge

Delta N Launch, Photo Courtesy NASA

Delta N Launch, Photo Courtesy NASA

Classification: Space Launch Vehicle

Length: 106 feet, 4 inches

Diameter: 8 feet

Date of First Cape Canaveral Launch: February 26, 1969

Date of Final Cape Canaveral Launch: September 29, 1971

Number of Cape Canaveral Launches: 4

Delta N was the designation given to the optional two-stage version of either the Delta L or Delta M. Since the Delta L and Delta M were identical with the exception of the third stage, the Delta N did not require more than one numerical designation. It was simply a Delta L or Delta M first and second stage combination with the third stage eliminated.