Page "MGM-1 Matador" Paragraph 5

In 1954, the USAF started to develop the YTM-61C version which was equipped with the new Shanicle ( Short Range Navigation Vehicle ) guidance system.

It became operational in 1957 and used ground-based microwave emitters to generate hyperbolic grids for range and azimuth, which were used by the missile steering system to navigate.

Now the guided range could be extended to the maximum flight range of the missile, about.

Anecdotal evidence indicated that the Shanicle system was very accurate, with stories of one missile flying into the ground in the same crater left by a previous missile during an early exercise in North Africa.

These may or may not be true, but in any case the Shanicle system was soon discontinued on operational missiles.

By the late 1950s, all were using the MSQ-1 ( called " MisCue-1 " by the crews ) ground-based guidance system.