The Fun World is a great sport/3D plane. You can fly long pattern aerobatics or
switch to 3D. It tracks very well and has neutral handling characteristics. It is
also difficult to stall this plane even with the CG way back. As a kit, it comes
very complete and takes very little time to assemble.
One of the next phase improvements will be the use of new Lithium Polymer
cells. Test with the same power system delivered the same output with 1lb
reduction in weight and more than 20 mins of flight time.
Hacker motors are available from
Master 48 Series
Hacker /AeroModel Motor mount
30 cell, Sanyo 2600 Nimhs zapped
1 inch diameter Carbon Fiber Tube – from PBG Composite
JR - DS3421: small, lightweight, high torque digital servos
Dubro Giant Scale plastic hinges.
The ARF is very complete and easy to assemble. Follow instructions for basic
assembly. For lighter weight, you can use smaller high torque servos as well as
a carbon fiber wing tube. In addition, I’ve used giant scale hinges to help
with high deflections on control surfaces for 3D flight.
Complete all the hinging and mount all servos except for the rudder servo. I
needed to lower the rudder servo tray to make it possible to slide the battery
pack into the fuse. The Fun World has a very large hatch that makes it very easy
to load and unload the battery. My battery pack is 1-16 cell and 1-14 cell set taped
together (see photo below). You can adjust your CG by moving the pack.
The Fun World will not stall so you can move the CG well behind the factory
location without worry. Just be careful on landing as the plane will balloon as you
slow and cut power. You need a little down elevator to keep the nose level.