E-flite P-38/2 Motors/2 ESC Combo User Manual
E-flite Air equipment
Park 450 Brushless Outrunner Instructions
Thank you for purchasing the E-flite Park 450 Brushless Outrunner motor. This motor is an ideal
choice for the E-flite Mini Ultra Stick and small profile balsa 3D airplanes. The motor will provide great
performance on the scale planes such as the E-flite P-47 and sport 3D performance for planes such
as the Mini Funtana and Mini Edge.
Park 450 Brushless Outrunner Features:
• Ideal for 3D park flyers 15- to 25-ounces and scale park flyers 20- to 30-ounces using 2- to 3-cell
1200–2100mAh Li-Po battery packs
• High Torque alternative to inrunner brushless motors
• Includes mount, prop adapters, and mounting hardware
• Quiet, lightweight operation – just 2.5 ounces (72 g)
• External rotor design, 4mm shaft can easily be reversed for alternative motor installations
• High quality construction with ball bearings and hardened steel shaft
• Slotted 12-pole outrunner design
Park 450 Specifications
Diameter: 28mm (1.1 in)
Case Length: 33mm (1.3 in)
Weight: 72g (2.5 oz)
Shaft Diameter: 4mm (.16 in)
EFLM1400
Kv: 890 (rpms per volt)
Io: .69A @ 8V (no load current)
Ri: .20 ohms (resistance)
Continuous
Current:
14A*
Max Burst Current: 18A*
Cells: 6-10 Ni-MH/Ni-Cd or 2-3S Li-Po
Recommended Props: 9x6 to 11x3.8 ‘Slow Flyer’ or 10x5 to 12x6 ‘Electric’
Brushless ESC: 20-Amp (EFLA311B)
* Maximum Operating Temperature: 220 degrees Fahrenheit
* Adequate cooling is required for all motor operation at maximum current levels.
* Maximum Burst Current duration is 15 seconds. Adequate time between maximum burst intervals is
required for proper cooling and to avoid overheating the motor.
* Maximum Burst Current rating is for 3D and limited motor run flights. Lack of proper throttle
management may result in damage to the motor since excessive use of burst current may overheat
the motor.
Battery Choices:
There are many Li-Po battery brands on the market with several choices for consumers. We
recommend either E-flite or Thunder Power batteries and list some possible choices for the Park 450
Brushless Outrunner motor, all depending on the airplane application.
EFLB1011 7.4V 1200mAh 2-Cell LIPO,16GA
THP13202SPL
1320mAh 2-Cell 7.4V LIPO,16GA
EFLB1016 11.1V 1200mAh 3-Cell LIPO,16GA
THP13203SPL
1320mAh 3-Cell 11.1V LIPO, 16GA
EFLB1021 7.4V 1800mAh 2-Cell LIPO,16GA
THP19002S
1900mAh 2 cell 7.4V LIPO,16GA
EFLB1025 11.1V 1800mAh 3-Cell LIPO,16GA
THP19003S
1900mAh 3-Cell 11.1V LIPO, 16GA
EFLB1031 7.4V 2100mAh 2-Cell LIPO,16GA
THP21002SPL
2100mAh 2-Cell 7.4V LIPO,16GA
EFLB1035 11.1V 2100mAh 3-Cell LIPO,16GA
THP21003SPL
2100mAh 3-Cell 11.1V LIPO,16GA
Examples of Airplane Setups:
E-flite Mini Edge 3D ARF (EFL2225)
Comments – Sport 3D and aerobatic performance with good vertical power and top speed. Also
allows the use of the lightweight THP13203SPL battery for improved power to weight ratio.
Weight w/Battery: 26 oz (735g)
Prop: 12x6 Electric (APC12060E) or 11x3.8 Slow Flyer (APC11038SF)
Battery: 1320mAh 3-Cell 11.1V LIPO (THP13203SPL) or 2100mAh 3-Cell 11.1V Li-Po
(THP21003SPL)
ESC: 20A Brushless (EFLA311B)