E-FLITE UMX Ultrix - Assembly

or soccer fields. Consult local laws and ordinances before choosing a location to fly your aircraft.
Hand Launching
To hand launch the aircraft, pinch the wing from the rear between the vertical stabilizers with your thumb on top. We
recommend launching in SAFE flight mode. Advance to full throttle and release the aircraft with a gentle forward toss,
slightly up (510 degrees above the horizon), and directly into the wind. After the model gains altitude and speed,
decrease the throttle as you desire.
Landing
Always land into the wind. During the flare, keep the wings level and the aircraft pointed into the wind. Slowly lower
the throttle while easing back on the elevator to bring the aircraft gently down for a belly landing.
TIP: We recommend belly landings on a soft surface. If hard surfaces are your only option for landings, consider
installing the optional nose skid.
NOTICE: Always fully lower the throttle at the touch down when landing the aircraft to prevent damage to the
propellers and motors.
Failure to lower the throttle stick and trim to the lowest possible positions during a crash could result in damage to the
ESC in the receiver unit.
Over-Current Protection (OCP)
The aircraft is equipped with over-current protection. OCP protects the ESC from overheating and stops the motor
when the transmitter throttle is set too high and the rotor cannot turn. OCP will only activate when the throttle is
positioned just above 1/2 throttle. After the ESC stops the motor, fully lower the throttle to re-arm the ESC.
Repairs
Crash damage is not covered under warranty. Repair this aircraft using foam-compatible CA glue or clear tape. Only
use foam-compatible CA glue as other types of glue can damage the foam. When parts are not repairable, see the
Replacement Parts List for ordering by item number.
Post Flight Checklist
1. Disconnect the flight battery from the ESC.
2. Power of the transmitter.
3. Remove the flight battery from the aircraft.
4. Recharge the flight battery.
5. Repair or replace all damaged parts.
6. Store the flight battery apart from the aircraft and monitor the battery charge.
7. Make note of the flight conditions and flight plan results, planning for future flights.
Service of Power Components Replacement Parts List
Disassembly
CAUTION: DO NOT handle the motor while the flight battery is connected. Personal injury could result.
1. The motor covers are secured to the wing using clear tape.
2. Disconnect the motor connector from the receiver.
3. Cut the tape and decals on the fuselage and carefully remove the motor covers.
4. Remove the 2 screws from the motor mount to remove the motor mount and motor from the wing.
5. Remove the 3 screws from the back of the motor to remove it from the mount.
6. The propeller is a press-fit, hold the motor and pull the propeller at the hub to remove it.
Assembly
Assemble in reverse order, connecting the motor covers to the wing with clear tape.