This is an electric free flight class flown on a fixed power
system to provide a level playing field for small field competition.
Models must have a maximum 20" projected wing span (not flat
span) and a maximum 20" overall length including propeller.
Any airframe design is permitted within the above limits.
Models must fly with a specified motor, propeller and timer.
For the 2019 competitions these will be: - GWS
CN12-RXC 7.2V or N60 25500RPM 6-7.2V 12mm brushed can motor
- 3x2" direct drive prop
- Peterborough FET fixed motor run timer (details here.)
Battery must be a minimum of 2S 180mah Lipo.
Motor run will be fixed at approximately 8 seconds. The
timekeeper is responsible for ensuring the motor run in flight is 8 seconds or
less.
Models must have a dethermalizer fitted.
No minimum or maximum model weight.
Competition comprises of three flights to a max decided on
the day (up to 60 seconds.) A flight of less than 10 seconds will be considered
an attempt.
For 2019 the motors are available to PMFC members on proof of a
viable model. The recommended battery is a Turnigy Nanotech 2S 180mah
(25-40C)
Open E20
This is electric free flight development class where
experimenting with different power systems is encouraged.
Models must have a maximum 20" projected wing span (not flat
span) and a maximum 20" overall length including propeller.
Any airframe design is permitted within the above limits.
Any motor, propeller and timer is permitted.
The flight battery must be sized so as to be capable of
three motor runs.
Motor run will be less than 8 seconds.
Models must have a dethermalizer fitted.
No minimum or maximum model weight.
Competition comprises of three flights to a max decided on
the day (up to 60 seconds.) A flight of less than 10 seconds will be considered
an attempt.
'Peterborough E20' class models are eligible for the Open class.
A single 'Peterborough' model may be flown in both competitions but the same
flight score cannot be used in both. Competitor must designate beforehand which
competition a flight is for.