Guidance
The Nike Hercules was a guided missile controlled from a groundstation. The guidance and control area (Integrated Fire Control, IFC) was located at a distance (about 1 mile) from the area from where the missile was launched (Launching Area, LA). The IFC had a low power acquisition radar (LOPAR) to detect (enemy) aircraft. After detecting and identifying a hostile aircraft with the aid of a Identification friend or foe system, this aircraft was followed or tracked in elevation, azimuth and range by a Target Tracking Radar (TTR). An analog (later digital) computer computed continually a point in the sky where the missile and target should meet (intercept point) after a potential launch of the missile. After the missile was actually launched by the Battery Control Officer (BCO), a Missile Tracking Radar (MTR) tracked the missile and the computer constantly updated the intercept point even if the hostile aircraft performed evasive actions. Steering corrections were sent to the missile by the MTR. When the missile neared the intercept point a command signal was sent to the missile to explode. To measure the range to the target under jamming conditions the IFC was also equipped with a Target Ranging Radar (TRR). Some IFC’s were equipped with a high power acquisition radar (HIPAR) to augment the initial detecting range of hostile aircraft. For command and control the sites were linked with a digitally communication system (initial the AN/MSQ-18 system).
On the IFC the system was operated by a crew of about 9 operators under command of the BCO. Locking on to the target had to be done manually by varying the range, elevation and azimuth of the TTR. For this the LOPAR provided the rough initial azimuth and range. After a 'lock-on' the system could track the missile and target automatically However a manual tracking mode was available in case an automatic track could not be established. The firing of the missile was done manually by the BCO based on the rules of engagement. The crew on the LA, also under command of the BCO, was responsible for preparing and erecting the missile.
Read more about this topic: MIM-14 Nike-Hercules
Famous quotes containing the word guidance:
“Now narrow minds can develop as well through persecution as through benevolence; they can assure themselves of their power by tyrannizing cruelly or beneficently over others; they go the way their nature guides them. Add to this the guidance of interest, and you will have the key to most social riddles.”
—Honoré De Balzac (1799–1850)
“Children require guidance and sympathy far more than instruction.”
—Anne Sullivan, U.S. educator of the deaf and blind. The Last Word, ed. Carolyn Warner, ch. 16 (1992)
“If Los Angeles has been called “the capital of crackpots” and “the metropolis of isms,” the native Angeleno can not fairly attribute all of the city’s idiosyncrasies to the newcomer—at least not so long as he consults the crystal ball for guidance in his business dealings and his wife goes shopping downtown in beach pajamas.”
—For the State of California, U.S. public relief program (1935-1943)