Any being that looks at this ship will notice its immediate resemblance to the blockade runner. Just like many other Corellian ships of this era, this ship was manufactured to meet a specific need. Many planets in the Outer Rim were having problems with pirates in their systems. These pirates showed an uncanny ability to arrive in system, cause a lot of problems and disappear in to hyperspace many times without a shot being fired. Many of the interplanetary governments recognized the need for a fast, heavily armed ship that could patrol their relative sectors, and respond to threats with equal or greater force. The DP-20a was just what they were looking for.
The most attractive attribute to this vessel is its cost. Unfortunately, the rather cheap cost is also apparent in the construction. These are no frills battle ships. It is commonplace to find metal seats, without any cushions throughout the entire ship. Also, many of the components used are somewhat dated. The communications suite and navigational systems are only second generation, and tend to require very skilled officers to make up for this shortcoming.
The DP20a line of gunships seem to be plagued with a number of defects in engineering, a common problem with the first build of any type of craft. One common problem is the cabling from the power generator to the laser cannons. The cable is of an insufficient gauge, causing occasional laser failure at inopportune times. That is not to say that these ships are ineffective. Within their element, they are one of the best patrol craft out there today. The DP-20a is one of the fastest corvettes in existence, at sub-light speeds, and with twenty heavy laser cannons, it can cause a lot of problems for light freighters and a moderate number of fighters. The cost alone makes it an affordable option for sector patrols or convoy security for smaller governments. Consequently, the DP-20a is a common sight throughout the galaxy.