Hangar 9 35% Extra 300 ARF (3 Boxes) - Manual (Page 43)

43 35% Extra 300 ARF Assembly Manual
3. Model aircraft not fitting a specific category shall use
those pull-test requirements as indicated for Control Line
Precision Aerobatics.
4. The flying area must be clear of all utility wires or poles
and a model aircraft will not be flown closer than 50 feet to
any above-ground electric utility lines.
5. The flying area must be clear of all nonessential
participants and spectators before the engine is started.