This is the Acro Drive 350+ 5:1 Ratio Gear Drive System from Simprop.
Designed for use with the Park Flyer airplanes or other models that
require a speed 280BB motor and a 5:1 gear ratio gearbox.
FEATURES: Light weight, easy to use power system for park flyers.
Pre-assembled nylon gear box with bushings.
Ball bearing motor.
INCLUDES: One Acro Speed 280BB ferrite motor with 10 tooth pinion gear
One Acro Drive 350+ 5:1 ratio red gear box with 8mm output shaft
One 8mm red nylon prop nut
One APC 9 x 6 slo-fly propeller (APCQ5013)
Three motor capacitors
Two 2 x 6.5mm gearbox mounting screws
One instruction sheet
REQUIRES: Park Flyer aircraft
Electronic speed control
Fine-point felt-tip pen for marking motor placement in the gearbox.
Small phillips screwdriver
COMMENTS: Electric flight facts:
Higher gear ratio: Propeller spins faster, but has less power.
Lower gear ratio: Propeller spins slower, but has more power and
allows the use of a larger propeller.
Smaller propeller: The airplane will go faster, but has less power.
Larger propeller: The airplane will go slower, but has more power.
Larger pinion: The airplane will have more speed, but will not climb
as well.
Smaller pinion: The airplane will have more power, which is used for
aerobatics.
Ball bearings give better performance and run smoother than bushings.
Drive units from Simprop are listed here from "basic" up to
"high performance" aerobatic.
GPMG0251 Econo Drive 300+ 5:1 Ratio (Basic, not aerobatic)
GPMG0250 Parc Drive 300+ 4:1 Ratio (More powerful, not aerobatic)
GPMG0253 Power Drive 350+ 5:1 Ratio (More powerful than the 300+
gear drive because it has a stronger motor. It has more
aerobatic capabilities.)
GPMG0252 Acro Drive 350+ 5:1 Ratio (Has ball bearings in the motor)
GPMG0254 Acro Drive 350+ BB 5:1 Ratio (Has ball bearings in the
motor and the gearbox.)
JAL 1/5/01
ir/jl
