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FMS Pilatus PC-21 1100mm PNP Performance Flight

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Derick Aquino

This is the performance flight of my new FMS Pilatus PC21 1100mm PNP. An absolutely gorgeous plane, on the ground and in the air. Not particularly fast with the stock 5bladed prop.. but if modified with any of the readily available FMS 10.5 x 8 4bladed props, can boost it's performance by 2025% and still keep it within the operating parameters of the stock motor and ESC. I also added a 2mm nylon washer around the hex portion of the motor / prop adapter to provide clearance for the motor to spin the Strega Spinner without any rubbing to the fuselage. I took a nylon washer and reamed it out to fit over the hex of the prop adapter, and the hex part still has enough comfortable bite for the spinner and prop when tightened. Then I dynamically balanced the whole assembly so that the prop throttle up is ultra fine smooth.

Overall, an extremely smooth pattern plane with jetlike qualities and sharp precision when tuned correctly. It is so very satisfying to fly and carries a lot of presence in the air.. eye candy for the RC Pilot and Spectator.

GENERAL INFO
Transmitter: Spektrum DX8 (G2)
Receiver: Spektrum AR630 (AS3XEnabled)
Battery: Pulse 4S 2250mAh 45C Lipo (234 Grams)
CG: Range is 9095mm (Flown at 92mm)
Flight Timer: 4:00 Minutes
Total Flight Time Spent: 3:57 Minutes
PostFlight Battery Status: 38% at 15.26 Volts (~3.815 Volts / Cell)
Pilot: Me
Cameraman: Brad Lupher
Shot with iPhone 6 with 1080p 60fps
Music: Fly For Your Life by Gunship

MODIFICATIONS
FMS / RocHobby 10.5 x 8 x 4 Critical Mass Propeller (Adds ~2025% increase in thrust and speed over the stock 10 x 7 x 5 Propeller)
FMS / RocHobby Strega Spinner
(This setup is with the stock 750KV Motor and stock 40a ESC. Max Static Amps is measured to 38.4a and within operating parameters. ESC and motor are cool to the touch after each flight.)

RATES & SERVO TRAVEL USED
Ailerons: 100% Rate with 22% Expo
Elevator: 100% Rate with 26% Expo
Rudder: 100% Rate with 0% Expo
Servo Travel: 100% All Surfaces

CONTROL ARM SETTINGS USED
Ailerons: Outermost Hole on Servo / Middle Hole on Horn
Elevator: Outermost Hole on Servo / Outermost Hole on Horn
Rudder: 2nd From Outermost Hole on Servo / Middle Hole on Horn
Flaps: 2nd From Outermost Hole on Servo / Outermost Hole on Horn

FLAP SETTINGS USED
Flaps Up: 100% with 0% Down Elevator
Mid Flaps: 30% with 7% Down Elevator
Full Flaps: 20% with 11% Down Elevator
Flap Deployment Speed: 3.0 Seconds

Thanks for watching!

posted by ulhetoe5q