| HMCS Nipigon underway during NATO Exercise Ocean Safari '85. | 
| Class overview | 
|---|
| Name | Annapolis class | 
| Builders |  | 
| Operators |  | 
| Preceded by | Mackenzie class | 
| Succeeded by | Iroquois class | 
| Built | 1960–1964 | 
| In commission | 1964–1998 | 
| Planned | 2 | 
| Completed | 2 | 
| Retired | 2 | 
| General characteristics | 
|---|
| Type | Destroyer escort | 
| Displacement | 3,420 long tons (3,474.9 t) full load | 
| Length | 366 ft (112 m) | 
| Beam | 42 ft (13 m) | 
| Draught | 23.5 ft (7.2 m) | 
| Propulsion |  | 
| Speed | 28 kn (51.9 km/h; 32.2 mph) | 
| Complement | 228 | 
| Sensors & processing systems
 | 
Original:
1 × SPS-12 air search radar1 × SPS-10B surface search radar1 × Sperry Mk.2 navigation radar1 × URN 20 TACAN radar1 × SQS-501 high frequency bottom profiler sonar1 × SQS-502 high frequency mortar control sonar1 × SQS-503 hull mounted active search sonar1 × SQS-504 VDS medium frequency active search sonar1 × UQC-1B "Gertrude" underwater telephone1 × Mk 60 GFCS fire control with SPG-48 tracker (GUNAR) DELEX:
1 × Marconi SPS-503 air search radar1 × Raytheon/Sylvania SPS-502 surface search radar1 × Sperry Mk.127E navigation radar1 × URN 25 TACAN radar1 × SQS-505(V) or SQS-510 hull mounted active search sonar1 × SQS-504 VDS medium frequency active search sonar1 × SQR-19(V) CANTASS towed array sonar1 × UQC-1B "Gertrude" underwater telephone1 × Mk 60 GFCS fire control with SPG-48 tracker (GUNAR) | 
| Electronic warfare & decoys
 | 
Original:
1 × ULQ-6 jammer1 × WLR-1C radar analyzer1 × UPD-501 radar detector1 × SRD-501 HF/DF DELEX:
1 × SLQ-501 intercept (CANEWS)1 × ULQ-6 jammer1 × SRD-501 HF/DF | 
| Armament | 
Original:
1 × FMC 3-inch/50 Mk.33 twin gun1 × Mk. NC 10 Limbo ASW mortar1 × Mk.4 thrower with homing torpedoes DELEX:
1 × FMC 3-inch/50 Mk.33 twin gun2 × triple Mk.32 12.75-inch torpedo tubes firing Mk.44 or Mk.46 Mod 5 torpedoes | 
| Aircraft carried | 1 CH-124 Sea King ASW helicopter | 
| Aviation facilities | Midships helicopter deck and hangar with Beartrap. | 
The Annapolis-class destroyer escort was a two-ship class of destroyer escorts that saw service with the Royal Canadian Navy and Canadian Forces from the 1960s to the 1990s. The final version of the St. Laurent-class design, the class was used extensively for anti-submarine warfare purposes. Both ships were sunk as artificial reefs after being retired, one on each coast of Canada.