| RAF NUMBERS | 81 | 
      
        | BUILDER | Vosper Ltd, Portsmouth | 
      
        | HULL DIMENSIONS | LOA......... 60' | 
      
        |  | Beam.......14' | 
      
        |  | Draught.... 3' 7" | 
      
        | HULL PLATING | Material........Aluminium alloy A.W.5 | 
      
        |  | Method..........Riveted | 
      
        | MAIN MACHINERY | Twin General Motors 64-HN-5 diesels each rated at 225 bhp | 
      
        | REDUCTION | 2.04 : 1 | 
      
        | PROPELLOR | Type . . . . . . . . Voith Schneider | 
      
        |  | Pitch . . . . . . . . Variable | 
      
        | MAXIMUM SPEED | 12.5 Knots | 
      
        | TOTAL FUEL CARRIED | 300 Gallons | 
      
        | RANGE | 100 Miles | 
      
        | PUMP MACHINERY | Single General Motors 64-H.N.-5 diesel | 
      
        | FIRE PUMPS | Twin Drysdale 5 Type | 
      
        | PUMP RATE | Each pump - 500 gallons water per minute | 
      
        | FOAM TANK | 2 x 50 Gallons |