The C-B4 sensor developed by UTC Aerospace achieves better performance than existing sensors by tracking a few selective spectral bands, rather than just one band or too many bands. It combines attributes of multispectral and full-motion video sensors. By prioritizing only the most useful spectral bands like green, red, near-infrared, and short-wave infrared, the C-B4 provides high performance while being small, lightweight, low power and low cost. Initial flight tests of the 48-pound C-B4 sensor have been successful, and it is scheduled to launch on tactical unmanned aerial vehicles in early 2013.