This is the .30 Brushless Electric Motor from O.S. Motors.            
                                                                               
    #OS51012000    
                                                                              
FEATURES: For .25 - .30 size airplanes                                        
          Stainless steel prop shaft                                          
          Rigid rear mounting design                                          
          Centrifugal fan design with angled ventilation holes draws air      
            through the motor and across the windings and magnets for improved
            cooling                                                           
                                                                              
INCLUDES: .30 Brushless Electric Motor with Backplate and Gold Plated Female  
            Plugs                                                             
                                                                              
REQUIRES: 60A brushless ESC                                                    
                                                                              
SPECS:    Rated Power: 590W                                                   
          Rated Voltage: 14.8 - 18.5V                                         
          Rated Current: 35 - 40A                                             
          Maximum Current (10 sec): 75A                                       
          No Load Current: 2.0A                                               
          Phase Resistance: 31. miliohms                                      
          Maximum Efficiency: 85%                                             
          kV: 750                                                             
          Poles: 14                                                           
          Shaft Diameter: 0.20" (5mm)                                         
          Shaft Length: 0.45" (11.5mm)                                        
          Weight: 6.7oz (190g)                                                
          Lead Wire Length: 3.5" (90mm)                                       
          Length of Motor Can: 1.9" (48.3mm)                                  
          Diameter of Motor Can: 1.47" (37.5mm)                               
          Length/rear of Motor Can to Prop Washer: 2.5" (63mm)                
          Prop Washer Diameter: 0.87" (22mm)                                  
          Thickness of Motor Mount: 0.12" (3mm)                               
          Width of Motor Mount: 1.96" (50mm)                                  
          Height of Motor Mount: 1.96" (50mm)                                 
                                                                              
          Performance for this motor with different props and LiPo cells is as
            follows (all data with 60A ESC):                                  
          Prop Size              Max Electric Current      LiPo Cells         
          12 x 8E                      37A                     4S             
          13 x 8E                      43A                     4S             
          14 x 7E                      46A                     4S             
          14 x 7E                      30A                     3S