MOTOR TEST DATA

All this data was prepared by an independent third party and it has been published in the Free Flight Digest

Motor: AX-1806N-2500 Kv *Weight: 24.7 gms. Battery: TP 325 mAh 70C charged to 8.4 V.
Date: 1/04/14 Test 05   No. of magnets (poles):  12 Ambient temp: 
PROPELLER VOLTAGE AMPS WATTS RPM THRUST (oz.) THRUST (gms.) **CASE TEMP (F)
Graupner 6 x 3 folder 7.00 8.05 56 11,800 8.2 232  
Graupner 7 x 4 folder 6.79 10.5 71 9700 11.3 320  
Graupner 7.5 x 4 folder 6.85 11.3 77 9500 12.4 352  
Graupner 8 x 4.5 folder 6.75 12.4 84 8500 13.4 380  
Graupner 9 x 5 folder 6.71 14.0 94 7000 13.1 371  
  approx. RPM at max. power: 8253      
*includes motor mount and 2 mm connector pins   ** after 15 seconds of running
Motor: C20-2050 Kv   *Weight: 30.0 gms. Battery: TP 325 mAh 70C charged to 8.4 V.
Date: 1/10/14 Test 07   No. of magnets (poles):  12 Ambient temp:
PROPELLER VOLTAGE AMPS WATTS RPM THRUST (oz.) THRUST (gms.) **CASE TEMP (F)
Graupner 6 x 3 folder 7.18 7.0 50 11,600 9.7 275  
Graupner 7 x 4 folder 6.90 9.5 65 9900 11.2 318  
Graupner 7.5 x 4 folder 6.86 10.2 70 9600 12.0 340  
Graupner 8 x 4.5 folder 6.81 11.3 77 8800 13.6 386  
Graupner 9 x 5 folder 6.44 13.2 85 7600 15.9 451  
  approx. RPM at max. power: 6471      
               
Motor: TEXAS Red Max-2500 Kv *Weight: 28.2 gms. Battery: TP 325 mAh 70C charged to 8.4 V.
Date: 1/15/14 Test 08   No. of magnets (poles):  12 Ambient temp:  62 deg.
PROPELLER VOLTAGE AMPS WATTS RPM THRUST (oz.) THRUST (gms.) **CASE TEMP (F)
Graupner 6 x 3 folder 6.73 11.3 76 13,250 11.3 320 68
Graupner 7 x 4 folder 6.29 14.3 90 10,900 14.4 408 80
Graupner 7.5 x 4 folder 6.20 14.8 92 10,400 15.4 437 82
Graupner 8 x 4.5 folder 6.08 16.5 100 9200 17.3 490 91
Graupner 9 x 5 folder 5.97 18.5 111 7900 18.9 536 93
  approx. RPM at max. power: 7303