Air Craft Data Page

 
MP Jet Brushless Motors
These new brushless motors from MP Jet have very high Kv ratings, so they remain efficient at high amperage levels.  The "300" replacement motor for example, AC 25/35-20, is most efficient at 4A to 8A - numbers twice as high as brushed equivalents - and it runs very well at 10A+ in S400 models.  At that level aerobatics are spectacular in a 16oz (450g) model.

Due to the high Kv, the "300" motor works best with 6-8 cells, or Lithium Polymer 2-cell packs. That's good, because your motor controller's BEC circuit prefers to stay at 8 cells or less. The "400" motor can use 7-9 cells HEcell 1100NiMh to Sanyo 1950AUP, or up to 3S2P E-Tec 1200 packs in larger aerobatic models to 18A peak.

Ball-bearing inner-driven gearboxes and gold connectors are included, so these motors not only deliver stunning performance but are also an amazing bargain.

"300" AC 25/25-26
(MPJ20124)		 "400" AC 25/35-20
 (MPJ20104)
Cells 6-8 6-10
Kv (rpm/V) 4100 2650
Max continuous RPM 45,000 40,000
Max efficiency (%) 81 82
Max efficient current range (A) 4-8 7-15
Max current (A) 15 25
Internal Resistance  (mW) 145 100
Rotor measurements (Dia-Length mm) 25/25 25/35
Motor Shaft Diameter (mm) 2 3
Gearbox Output Shaft Diameter (mm) 3 3
Weight with gearbox (g) 59 92
Suggested Propellers APC Slowfly 7x4 to 9x6 APC "E" 8x4 to 12x8
Gearbox Ratio 5:1 4:1
Ready-to-fly model weight 300-700g (10oz-24oz) 400-1000g (15-32oz)
Castle Creations Speed Controller Phoenix 10 Phoenix 25
Prop Adapters MPJ-8030 for SF props, MPJ-8031 for "E" or spinner

 
"300" AC 25/25-26 (MPJ20123)
"400" AC 25/35-20 (MPJ20103)