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This section describes our recommendations to help you in deciding which types of accessories to purchase for your new
Model Tech Magic Formula 3D ARF.
Please read through this entire section very carefully. We have provided you with tips
and recommendations that, if followed, will result in a great flying airplane. Failure to follow our recommendations may
result in a poor flying airplane.
SECTION 1: OUR RECOMMENDATIONS
What Engine Should I Use?
The airplane is designed to use a .46- .61 size two-stroke engine or a .61 - .70 size four-stroke engine.
The airplane flies well using engines within the recommended size ranges, although for the best
aerobatic performance we suggest using an engine at the upper end of the size range. For 3D-style
flying, we've found that the airplane flies best when matched with a lightweight,
yet powerful engine, such as the Magnum XL .70 four-stroke engine. For this
style of flying, we suggest using a large diameter, low pitch propeller suited for
your engine.
Whether you're using a two-stroke engine or a four-stroke engine, the
engine will be mounted inverted. The airplane has been designed to
allow the fuel tank to sit lower than normal to help prevent flooding and erratic engine tuning. Your
engine's stock muffler will be able to be used, regardless of the type of engine chosen.
If you're flying at higher altitudes, we recommend using an engine at the high end of the size range.
What Radio System and Servos Should I Use?
To get the most out of the airplane, we suggest using a four or more channel computer
radio system with mixing capabilities. Since there are two separate aileron servos
used, they can be plugged separately into the receiver, allowing you the capability of
flaperon and spoileron mixing, differential mixing and flaperon/spoileron to elevator
mixing. Because of the large control surfaces, using ball bearing servos is a must. For
crisp, positive control, we suggest using high-quality, dual ball bearing servos with a
minimum of 45-55oz/in of torque on the flight control surfaces. For throttle control, a
standard ball bearing servo can be used. Although you would lose mixing capabilities, the airplane can be flown using a basic
four-channel radio control system. If you do this, you will need to use a servo Y-Harness to join the two aileron servos together.
The airplane uses two separate elevator servos that are mounted offset, so no servo reverser is necessary. You will, however, need
a standard Y-Harness to connect the servos together.
What Else Do I Need?
There really isn't much else that you'll need to finish the airplane. Most of the hardware is included
in the kit, so about the only thing else you'll need is a remote fueling valve, four servo extension
leads and two Y-Harnesses. You'll also need typical modeling supplies, such as foam rubber to
protect your receiver and battery, and fuel tubing.
QTY. 1
210945
Magnum XL .70RFS Four-Stroke Engine
QTY. 1
609288
APC 13 x 6 Composite Propeller
QTY. 5
759573
Hitec HS-475HD Deluxe Ball Bearing Servos
QTY. 1
444104
Cirrus CS-36 Standard Servo
QTY. 4
444713
Cirrus 12" Servo Extensions
QTY. 1
115559
Thunderbolt # 3 Performance Glow Plug
QTY. 1
237500
Magnum Fueling Valve
QTY. 1
115923
Global XX Silicone Fuel Tubing
QTY. 1
868638
Dubro 1/4" Protective Foam Rubber
QTY. 1
867903
Dubro 3/8" Heat-Shrink Tubing
Here's a List of What We Used to Finish Our Magic Formula 3D ARF
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IMPORTANT
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The part number for the Cirrus servo is compatible with all name-brand radio control systems. This servo uses a universal
connector. The part number for the Hitec servos and the Cirrus servo extensions are compatible with Hitec and JR radio control systems. These
items are also available with connectors that are compatible with Futaba and Airtronics radio control systems.
Summary of Contents for Magic Formula 3D ARF
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