Flight and Operations Manual of ATEC 321 Faeta ultralight aircraft with Rotax 912 iS Sport
ATEC v.o.s. Libice nad Cidlinou, Czech Republic Page 40 of 56
7.7. Fuel System
The fuel system consists of two fuel tanks inbuilt in wings with a total fuel capacity of 100 litres (2 x max.
50L). The piping connection is equipped with a sediment bowl and a drain plug. The fuel supply is
assured by two independent circuits with two electrical fuel pumps (main and auxiliary). Uncomsumed
fuel returns back to the fuel tank. The fuel pressure is measured by the pressure gauge. When the fuel
indicator light turns on, the fuel reserve is 5 litres.
7.8. Instruments
The instrumental equipment consists of basic flight and engine instruments and navigation system. The
static and dynamic pressure value is taken from the Pitot tube installed on the underside of the left
wing. Instruments layout on the dashboard (individual) is shown on the picture in the Art. 7.11.
If the aircraft is equipped with SSR transponder, this must be switched-on during the flight. The
installation of SSR transponder must be provided by appropriate authorized person.
Basic transponder squawks: 2000 - controlled flight
7000 - uncontrolled flight
7500 - unlawful interference (hijack)
7600 - communication failure / radio contact loss
7700 - emergency
When setting up the new squawk, the transponder must be in “STAND-BY” mode.
7.9. Controlling Elements
Foot-operated control
By pushing the left pedal when appropriate speed is reached, the aircraft turns left when moving on the
ground or in the air, and vice versa. Pedals can be adjustable in three positions (optional equipment).
Hand-operated control
By pulling the control stick towards the pilot, the nose lifts up (the pitch increases) and the aircraft
climbs. By pushing the control stick forward, the aircraft descends. By deflecting the control stick to the
left, the aircraft banks to the left, and vice versa.
Wing flaps – mechanical option
The flaps are released to move when the release button on the control lever is pushed. By pulling the
lever upward, flaps are extending step by step to positions I, II, III, and vice versa. After the button is
released, the flaps stay in appropriate stabilized position.
Wing flaps – electric option
The flaps are actuated by linear potentiometer (flaps actuator) which adjusts them to positions I, II, III or
OFF with a help of its servo engine. Each flap position is indicated by indicator light.
Engine throttle
By pushing the throttle lever forward, the engine power increases and vice versa.
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