Canon Facts  Backstage Info  Speculation
The TR-116 was developed by Starfleet for use in areas where normal phasers would be useless - within dampening fields or radiogenic environments, for example. The weapon was designed to be as simple and foolproof as possible - it used a chemical explosive to fire a Tritanium bullet and had no electrical or optical systems at all. The performance was poor by the standard of phaser weapons - range was limited to around one kilometre at most, and the largest feasible magazine was only capable of carrying thirty or forty rounds. However, in the kinds of environments the rifle was designed to operate in most opponents would be completely unarmed, while species like the Klingons would be reliant on swords and knives. Against that kind of opposition the TR-116 was more than adequate.

The development of regenerative phasers which can also operate within energy-hostile environments made the TR-116 obsolete, and Starfleet dropped the program as soon as they were confident of its replacement. For some years the design remained merely a forgotten replicator pattern, but in 2375 a modified TR-116 was used to commit three murders on board Deep Space Nine.

The altered weapon included two major changes. First, it was fitted with a microtransporter; when the bullet was fired the transporter beamed it to within less than 10 centimetres of the target. By using an exographic targeting sensor the killer was able to scan through many layers of bulkheads, allowing the TR-116 to be fired through walls or flooring. Chief O'Brien reproduced these alterations on another TR-116, which Lieutenant Dax subsequently used to find and capture the murderer. Operating the weapon is simplicity itself; the targeting scanner is located on the rifle, transmitting its viewpoint to a headset worn by the user. A simple thumb control moves the viewpoint forwards and backwards, allowing it to pass through walls as needed. The targeting graphic cues the user to fire whenever a target is in the line of fire.

Some thought has been given to producing the modified TR-116 as a field weapon, but while the displaced targeting system is ingenious the basic limitations of a projectile weapon remain. Since phaser beams can be transported on the way to the target much as bullets can, displaced firing is likely to become a feature of phaser weapons in the future.

Last updated : 3rd October 1999.
This page is Copyright Graham Kennedy 1998.

Star Trek et al is Copyright Paramount Pictures 1996/97.
No Copyright  infringement is intended and this page is for personal use only.
All  of the above classes of weapons and all of the
named ships are copyright Paramount 1996/97.