Introducing a new SPARK Evolution II.

During a process of new Evolution, we have focused on F3A FAI sequence P-15 and F-15 which are going to be flown in 2014-2016.
Our goal was to increase rudder authority and redesign the shape of fuselage ( new canopy with a canaliser, new motor cowl and new rudder), and increased aileron response. All these changes were done to improve knife edge flight and snap rolls (F-15) Important was a development of canaliser, which is to be used on Spark for the first time.  We have tested few different wing designs and shapes. 

It was a long way, but we are convinced we reached the best set up. Canaliser is very effective.




KRILL MODEL is also introducing a revolutionary cooling system for “classic”el. motors and also for motors with gear boxes . One a air nozzle is for cooling the speed controller also.  Our “ AIRBOX” is very effective and combined with a low weight  (12gr) is a must for F3A model.


A short comparison Evo I and Evo II and differences from other F3A planes:
 

•  ailerons are center hinged – no more ail. Differential and whistle during flight

•  AIRBOX – a unique box developed for motor cooling ( special order only - no.: 2019115-14 )  It can be integrated into a new cowl

• new elevator – smaller, new shape and airfoil

• new wing with more effective, central hinged ailerons

• optional use of counter rotating props

• very fine rudder authority

• absolutely straight knife edge flight