Quad City Ultralight Aircraft Challenger — Douglas_White_Quad_City_Ultralight_Aircraft_Challenger

Preflight Inspection Cockpit Ignition OFF Master Switch ON Fuel Gauges CHECK Master Switch OFF Primary Flight Controls CHECK Flaps CHECK Baggage STOWED Required Papers ON BOARD Parking Brake ON/As Required Nose Section General Condition CHECK Nose Gear Tire CHECK Nose Wheel Strut Proper Inflation (3”) Windshield CLEAN Left Wing Chock and Tie Down REMOVED Surface Condition CHECK Wing Tip CHECK Lights CHECK Flaperon and Hinges CHECK/Neutral Landing Gear and Tire CHECK Brake Block and Disk CHECK Fuselage (left side) General Condition CHECK Fuel Quantity CHECK Fuel Cap CLOSE and SECURE Antennas CHECK Prop and Spinner CHECK Air Filter CHECK Spark Plugs & Electrical wiring CHECK Engine Fuel Lines CHECK Carburetors CHECK Float Chambers Fan Belt CHECK For Tightness Motor Mounts CHECK For Cracked Rubber Fuel Tank Sump CHECK For Water Right Wing Check as Left Wing Empennage General Condition CHECK Hinges and Attachments CHECK Rudder & Elevator Rods CHECK Fuselage (Right Side) General Condition CHECK Exhaust &Springs CHECK/SECURE

Before Starting Engine Cockpit Doors AS REQUIRED Seats ADJUSTED AND LOCKED Seat Belts & Harnesses FASTENED Parking Brake SET

Starting Engine (COLD) Prime 5 PUMPS Throttle Advance 1/2 Master Switch ON Choke OFF Area and Propeller “CLEAR” Starter ENGAGE Throttle ADVANCE SLIGHTLY

Starting Engine (Hot) Prime 3-4 PUMPS Throttle Advance 1/2 Master Switch ON Choke OFF Area and Propeller “CLEAR” Starter ENGAGE Throttle ADJUST

Starting Engine (Flooded) Throttle OPEN FULL Master Switch ON Choke OFF Area and Propeller “CLEAR” Starter ENGAGE Throttle (warm up) 2000 to 3000 RPM Idle 2000 RPM

Before Taxi Intercom HEADSETS CHECKED Radios ON Taxi Area CLEAR Brakes RELEASED/CHECK Steering CHECK

Run Up Brakes ON Throttle 6600 RPM Magnetos 175 Max. Drop/ 50 Diff. EGT CHECK CHT CHECK Throttle IDLE

Before Takeoff Master Switch CHECK ON Flight Instruments CHECK Fuel Quantity CHECK Choke OFF Engine Gauges CHECK Belts/Harness FASTENED Empty Seat Belt FASTENED Flaperons NEUTRAL Controls FREE Doors LATCHED (If Attached)

Takeoff Accelerate (6800 RPM) 45 MPH Back Pressure to Rotate to Climb Attitude Climb Speed (6600 RPM) 55 MPH

Short Field Takeoff, Obstacle Clearance Accelerate 45 MPH Back Pressure to Rotate to Climb Attitude Accelerate (until over obstacle) 50 MPH Accelerate (after over obstacle) 55 MPH

Short Field Takeoff, No Obstacle Accelerate 45 MPH Back Pressure to Rotate to Climb Attitude Accelerate (after breaking ground) 55 MPH

Soft Field Takeoff, With or Without Obstacle Accelerate and lift off nose as soon as possible. Lift off at slowest possible airspeed. Accelerate just above ground to 50 MPH to climb past obstacle height (if present). Accelerate (after over obstacle) 55 MPH

Climb VX – Best Angle of Climb Speed 50 MPH VY – Best Rate of Climb Speed 55 MPH

Cruise Normal Max. Power 6600 RPM Cruise Power 5700 RPM

Approach and Landing Belts/Harness FASTEN Final Approach Speed 55 MPH Landing Speed 45 MPH

Engine Shutdown Radios OFF Magnetos CHECK GROUND Throttle FULL AFT Choke FULL ON Magnetos OFF Master Switch OFF Parking Brake SET Control Stick SECURED WITH BELT Flaperons NEUTRAL Wheel Chocks IN PLACE Tie Downs SECURE

Aircraft Performance Speeds VS0 – Landing configuration stall at gross weight, power off 35 MPH VS1 – Cruise configuration stall at gross weight, power off 35 MPH Best Glide 55 MPH VREF (Short/Soft) 55 MPH VX – Best Angle of Climb Speed 50 MPH VY – Best Rate of Climb Speed 55 MPH Cruise Speed 75-85 MPH Top Speed 90-100 MPH VNO – Red Line 110 MPH VNE –– Never Exceed 120 MPH VL/D 55 MPH Max. X-wind 30 MPH

Aircraft Specifications Maximum Gross Weight 1041 LBS Basic Empty Weight (N548SL) 451 LBS Useful Load (N548S) 500 LBS Max. Front Seat 250 LBS Min. Front Seat 170 LBS Fuel Capacity (useable) 15 GALS Fuel Consumption 4.5 GPH Cruise Speed 85 MPH

Aircraft Weight and Balance Quad City Challenger | Weight | Arm | Moment 2: N548SL Basic Empty Weight 451 | 104 | 47016 Pilot 250 | 50 | 12500 Co-Pilot 180 | 77 | 13860 Fuel Gal. (15 Max) 90 | 103 | 9270 Total (M.G.W.= 951 lbs) 971 | 85.1 | 82646 Fuel (10 gal) 60 | 103 | 6180 Total (M.G.W.= 951 lbs) 941 | 84.5 | 79556 Acceptable moment arm for takeoff weight and balance is 80 to 90 inches The Challenger generally stalls with wings level, nose level, but altitude descent of 500 FPM. Listen for a propeller “Growl”. Practice stalls and slow flight at 2000AGL