Kit Scale Rules
Scale Judging Sheet
Click here to view and download a copy of
the FAI Rules.
This will provide rules for all Free Flight and
Control Line scale classes. Look specifically for the following
F4A Free Flight Power Scale
F4D Indoor Free Flight Rubber Scale
F4E Indoor Free Flight CO2 Scale
F4F Indoor Free Flight Peanut Scale
F4B Control Line Scale
For Outdoor Free Flight CO2 and
Electric Low Powered Scale Use the F4E Rules with the following
1. Battery is to be a maximum of three cells, 3.8 to
3.9 Volts 110 Milliamps either Nickel Cadmium (Ni-Cd), Nickel
Metal Hydride (Ni-MH) or Lithium Polymer (LiPo).
2. Jetex motors are allowed.
For Outdoor Free Fight Rubber Scale use F4D Rules with the
Models are to have a minimum wingspan of 375 mm.
Control line scale
models. F4B Use of 2.4 GHz Wireless as a Secondary Control
2.4 GHz wireless control may be used for secondary functions,
including but not limited to throttle control, flaps and retracts.
Elevation must be controlled by one or more lines operated by the
rules for static judging are to be found in the early section of
Examples of judging
sheets for both static and flying are included in the F4A section.
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