TECHNICAL DESCRIPTION, OPERATING, MAINTENANCE AND REPAIR MANUAL
1.6.10.8.1 Fuel tank draining
The objective is to drain off debris absorbed in the fuel tank drain pocket. The drains
are on the botton of the wings, each fuel tank has ist´s own drain. Draining procedure:
1. Place a suitable bottle below the draining outlet
2. Open the cap of fuel tank filler neck.
3. Drain off a small quantity of fuel by pushing of drain cock shank (DC)
4. Close the drain cock.
1.6.10.9 Heating
The air for the heating is taken in at the inlet, hose (EO) and passes through a casing (UM)
around a muffler. Hot air is piped through the hose (SCH) to a heating flap (RKL)
controlled by a cable from a cockpit.
1.6.10.10 Ventilation
There are the following cockpit ventilation systems:
• A ram-air ventilation. The ram-air through a NACA catcher on a side of a
cockpit canopy blows through the canopy frame which is shaped as a hollow
laminated profile to the adjustable venting nozzles on both cockpit sides..
• A side sliding window on the left-hand side of the canopy with a venting air flap.
1.6.11 Electrical system
The electric system of WT-9 Dynamic aeroplane is single-wire type with the negative
connected to the chassis. As a power source serve the single-phase generator integrated
to the engine and the 12V/16Ah maintenanceless battery. The electric system has two
electric buses located on the engine bed and on the instrument panel, another one for
model with a retractable undercarriage is located in the cockpit below a left pilot seat.
The wiring system depends on instrumentation ( FLYdat or a conventional aircraft
instruments ) or other electric equipment of individual aeroplane according to a
customer’s desire. See this Manual Appendices for wiring diagram of your aeroplane.
The fuse box contains the fuses for following equipment:
Date:
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