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[2] The Talos saw relatively limited use due to its large size and dual radar antenna system; few ships could accommodate the large missiles with the AN/SPW-2 missile guidance radar and the AN/SPG-49 target illumination and tracking radar. [3] The 9.9-meter-long, 3½-ton missile was comparable in size to a small fighter aircraft. [4]
A guidance system is usually part of a Guidance, navigation and control system, whereas navigation refers to the systems necessary to calculate the current position and orientation based on sensor data like those from compasses, GPS receivers, Loran-C, star trackers, inertial measurement units, altimeters, etc.
The guidance system is unstabilized in roll, relying on bang–bang control like the Pavewave II, and the cruciform tail assembly provides maneuverability. [13] LT-3 is a sophisticated upgrade of LT-2. The LT-3 has a dual-mode seeker, combining a satellite / inertial guidance tail kit with a gimbaled laser guidance module.
The GBU-8 consists of a contrast seeker in the nose section, four cruciform tailfins with flying surfaces for control, strakes connecting the tailfins with the nose section, and a 2000 lb Mk. 84 low-drag general-purpose bomb. The same type of guidance kit was also attached to a 3000 lb Mark 118 bomb, where it was designated GBU-9. [3] [2]
Command guidance has the advantage of isolating most of the equipment for the missile guidance at the launcher, where size and weight are significantly less important. In these systems, the radar that provides guidance is on the ground or ship and the missile lacks an independent guidance system. Typically two radars are used, one tracking the ...
On 18 November 2015, the U.S. Navy tested the AGM-84N Harpoon Block II+ missile against a moving ship target. The Block II+ incorporates an improved GPS guidance kit and a net-enabled data-link that allows the missile to receive in-flight targeting updates. Introduction of the Block II+ was achieved in 2017 on the F/A-18E/F followed by the P-8A ...
The M1156 Precision Guidance Kit (PGK), formerly XM1156, is a U.S. Army-designed precision guidance system to turn existing 155 mm artillery shells into smart weapons. [2]
Since so many types of missile use this guidance system, they are usually subdivided into four groups: A particular type of command guidance and navigation where the missile is always commanded to lie on the line of sight (LOS) between the tracking unit and the aircraft is known as command to line of sight (CLOS) or three-point guidance.