In our tests, this set up has proved the most efficient for the PRIMA-C model:

Elevator- neutral position:
Leading edge and trailing edge of elevator are on the same line as the trailing edge of the wings

Rudder: 12 mm right // 12 mm left

Elevator: 15 mm up// 18 mm down

Ailerons: 20 mm up// 5 mm down, resp. 10 mm up // 2 mm down (dual rate)

Flaps for "speed": 2 mm up and and at the same time elevator 1 mm down
Flaps for "slow flight" : 3 mm down and at the same time elevator 2 mm up

Landing with "Butterfly": flaps 20 mm down, ailerons 20 mm up and elevator 7 mm down

Center of Gravity : from 65 to 75 mm from leading edge

Paľo LIŠHÁK - RIVA models