Static alignment - the Schill way
Tilt alignment - simpler than ever...
Typically, just tell our Aligner 308 Ship Alignment System what tilt sensor is mounted on what weapon station and the Aligner 308 will lead you step by step through the alignment procedure for each weapon station. All measurements are made relative the MRP or the ship's gyro.
The results are given in roll and pitch (and as a tilt vector) and are entered into the weapon control system as correction values.
By slaving directors and guns to simulated targets the Aligner 308 enables an immediate verification of the weapon control system while still in harbor.
Azimuth and elevation alignment -
- enabled by theodolite
By using a special theodolite adapter and a tilt sensor, the Aligner 308 provides the possibility to tilt align a theodolite to the MRP or ship's gyro. After having aligned the theodolite also to the fore-aft-line, the theodolite is ready for azimuth and elevation alignment of any weapon station aboard.
Using the same method and two theodolites, angles can be transferred from one position to another aboard a ship afloat.
Azimuth alignment -
- without line-of-sight
The traditional way
The traditional way of transferring an angle between two positions with no line-of-sight by using two theodlites, repeatedly moved, is cumbersome and time consuming. Especially so between decks through steep and narrow staircases onboard a naval vessel.
The Schill way
With the Aligner 308 an angle can be transferred between any two positions with no line-of-sight and without theodolites. The only prerequisite is that the ship is heeled (by pumping fuel) 2-3 degrees from side to side. Cross-correlation between two 2-axis tilt sensors located on any two positions aboard will give the relative azimuth.
The traditional way:
Requires Line-of-sight between stations and/or target
Stations with different tilt and Z-coordinates => azimuth errors
The Schill way:
Line-of-sight between stations not required
2 measurements with different heeling
Relative azimuth given by the cross-correlation in roll/pitch
Gyro performance test - Stability checking
Ship's gyro checking -
- simple, accurate, fast and extensive
Using electrical output
Traditionally, the heading and attitude reference unit, i.e. the ship's gyro, has been aligned using opto-mechanical methods. With the Aligner 308 you simply connect to the electrical output of the gyros instead. A number of possible error sources are hereby eliminated. It is fast, simple and accurate.
Tilt and azimuth
In addition to tilt measurement, azimuth measurement can be made using the advanced azimuth measurement method described above. Other azimuth alignment methods are also available.
Gyro performance testing
In addition to the alignment features, the Aligner 308 also provides functions for performance testing of the gyro. The ship's gyro, one of the most vital functions aboard, can thus be checked in its natural dynamic environment, with ease and accuracy.