junderhi

My Feedback: (2)

I am new to the brushless rc world. I have a few questions and im hoping they can be answered without making me look to ignorant. I just purchased an Eflite Power 25 brushless motor, and an Eflite 60 Amp esc. I would like to know what battery to use. I know i need a lipo, but i am a little cramped on space. I want a battery with more than enough power that will give me excellent performance, aswell as longer flights. I can alter the battery area to make up for any size. My plane is the Precision aero Crazy Thing. It is recommended to have a .15 glow to a .21 size glow engine. The guys at the hobby shop said to use the power 25, and said it would have more than enough power. I also would like to know if anyone has the same electric set up and how long they were able to fly. What Charger and balancer do you recommend? Let me know what you think.

junderhi

My Feedback: (2)

Also what size prop for this motor.

jdetray

Below is the info about your motor from the Horizon Hobby web site.

- Jeff

Power 25 BL Outrunner Motor, 870Kv

Key Features
Equivalent to a 25-size glow engine for sport and scale airplanes weighing 3–5.5 lb (1.4–2.5 kg)
Ideal for 15-size 3D airplanes up to 3.5 pounds (1.6 kilograms)
Ideal for models requiring up to 600 watts of power
High-torque, direct-drive alternative to inrunner brushless motors
Includes mount, prop adapter and mounting hardware
External radial rotor designβ€”6mm shaft can easily be reversed for alternative motor installations
Slotted 12-pole outrunner design
High-quality construction with ball bearings and hardened steel shaft
Quite, lightweight operation

Overview
The Power 25 is designed to deliver clean and quiet power for 25-size glow engine for sport and scale airplanes weighing 3 to 5.5 pounds (1.4 to 2.5 kilograms), 15-size 3D airplanes up to 3.5 pounds (1.6 kilograms), or models requiring up to 600 watts of power. It's an especially good match for 4- to 5-pound scale airplanes on the market and models such as the Sig Kadet LT-25, Sig Frazer, Lanier Extra 3.25, Global Tequila Sunrise 25 and Great Planes Taylorcraft 20.

Specs
Type:Brushless outrunner
Size:Replacement for 25-size glow engine
Bearings or Bushings:Ball bearings
Wire Gauge:14
Recommended Prop Range:11x8 to 14x7
Voltage:12–16.8
RPM/Volt (Kv):870
Resistance (Ri):.03 ohms
Idle Current (Io):2.40A @ 10V
Continuous Current:32A
Maximum Burst Current:44A (30 sec)
Cells:3S-4S Li-Po or 10–14 Ni-MH/Ni-Cd
Speed Control:40–45A brushless
Weight:190 g (6.7 oz)
Overall Diameter:35mm (1.40 in)
Shaft Diameter:5mm (.20 in)
Overall Length:54mm (2.10 in)
Needed to Complete
40–45A brushless ESC
3S–4S Li-Po or 10- to 14-cell Ni-MH/Ni-Cd
11x8 to 14x7 prop