Fly Fly Hobby 1:6.5 Scale ASK 21 Electric Motor Glider variant, based on the RF-97 Sailplane model.
This variant is based off of the RF-97 Sailplane model, and was the predecessor to the version I submitted that was based off the E-Flite UMX ASK-21 model.
The model was modified to represent the Fly Fly Hobby 1:6.5 Scale ASK 21, AIR CADETS Electric Motor Glider. It has numerous features, and has been extensively tuned to fly exceptionally well.
The model has a 103.5" (2.689 m) wingspan, and an all up flight weight of 5.496 lb.
The motor represents a nose mounted, Turnigy 540S V-Spec Inrunner w/Impeller, 1100 kv brushlesss electric motor.
The propeller represents an 11 x 7 cam folding type, but is not displayed, since there wasn't one in the original RF-97 model.
The Battery represents the Turnigy nano-tech 3000mAh 25-50C battery.
The speed controller represents the Turnigy dlux 40A ESC with data logging.
The model has functional flaps, even though the full scale, real ASK-21 glider didn't have flaps.
MODEL FEATURES
- The model has separate servos for left and right ailerons and flaps, and uses 8 channels total for control.
- The main wing has an Eppler 203 airfoil, which is a 13.64% thickness at 30.7% chord, low Reynolds number, low camber (2.3% at 54.1% chord) airfoil.
- Typical airspeed is 34-35 mph (Flaps retracted i.e. Speed mode), with a steady state sink rate of 2-3 ft/sec.
- The aileron servos have been set up to provide 50% left /right differential (100% up / 50% down down deflection).
- The flap servos have been set up to deflect 50% of the aileron deflection for enhanced roll response.
- The ailerons have been mixed to the flaps to deploy in butterfly mode when the flaps are deployed for additional landing speed control.
With full flap deployment, steady state glide air speed should reduce to 25 mph, which is about 1-2 mph above stall speed.
- Elevator control has been mixed with flap control to help maintain level flight as flaps are deployed (speed dependent).
- Elevator control has been mixed with throttle position to help manage climb rate to reasonable levels at all throttle positions.
- Aileron control has been mixed with throttle position to help manage roll caused by motor torque.
- The model has three functional inline wheels (Nose, Main, and tail) but only the main and tail wheels are displayed,
which were the only ones in the RF-97 model.
- The model has several additional cameras.
CONTROLS
(Channel 1) Aileron
(Channel 2) Elevator (Down elevator (right stick forward) also applies brakes to the main wheel)
(Channel 3) Throttle
(Channel 4) Rudder
(Channel 5) Dual rates - Aileron, Elevator, and Rudder
(Channel 6) Not Used
(Channel 7) The main wheel can be retracted using the upper right two-position switch, deployed pushed forward, retracted pulled back).
(Channel 8) The flaps are deployed using the upper left flight mode switch, and deploy as 0 (pushed forward = Speed), 50% (middle), 100% (pulled back = Full Crow).
This channel also releases the aero tow hook 0 (pushed forward = Hook closed), 50% (Hook partially open), 100% (pulled back = Hook fully open).
Additional Cameras
F4 - Cockpit
F5 - Cockpit Left
F6 - Cockpit Right
F7 - Front
F8 - Overhead
F9 - Wing Tip - Left
F10 - Wing Tip - Right
This variant is based off of the RF-97 Sailplane model, and was the predecessor to the version I submitted that was based off the E-Flite UMX ASK-21 model.
The model was modified to represent the Fly Fly Hobby 1:6.5 Scale ASK 21, AIR CADETS Electric Motor Glider. It has numerous features, and has been extensively tuned to fly exceptionally well.
The model has a 103.5" (2.689 m) wingspan, and an all up flight weight of 5.496 lb.
The motor represents a nose mounted, Turnigy 540S V-Spec Inrunner w/Impeller, 1100 kv brushlesss electric motor.
The propeller represents an 11 x 7 cam folding type, but is not displayed, since there wasn't one in the original RF-97 model.
The Battery represents the Turnigy nano-tech 3000mAh 25-50C battery.
The speed controller represents the Turnigy dlux 40A ESC with data logging.
The model has functional flaps, even though the full scale, real ASK-21 glider didn't have flaps.
MODEL FEATURES
- The model has separate servos for left and right ailerons and flaps, and uses 8 channels total for control.
- The main wing has an Eppler 203 airfoil, which is a 13.64% thickness at 30.7% chord, low Reynolds number, low camber (2.3% at 54.1% chord) airfoil.
- Typical airspeed is 34-35 mph (Flaps retracted i.e. Speed mode), with a steady state sink rate of 2-3 ft/sec.
- The aileron servos have been set up to provide 50% left /right differential (100% up / 50% down down deflection).
- The flap servos have been set up to deflect 50% of the aileron deflection for enhanced roll response.
- The ailerons have been mixed to the flaps to deploy in butterfly mode when the flaps are deployed for additional landing speed control.
With full flap deployment, steady state glide air speed should reduce to 25 mph, which is about 1-2 mph above stall speed.
- Elevator control has been mixed with flap control to help maintain level flight as flaps are deployed (speed dependent).
- Elevator control has been mixed with throttle position to help manage climb rate to reasonable levels at all throttle positions.
- Aileron control has been mixed with throttle position to help manage roll caused by motor torque.
- The model has three functional inline wheels (Nose, Main, and tail) but only the main and tail wheels are displayed,
which were the only ones in the RF-97 model.
- The model has several additional cameras.
CONTROLS
(Channel 1) Aileron
(Channel 2) Elevator (Down elevator (right stick forward) also applies brakes to the main wheel)
(Channel 3) Throttle
(Channel 4) Rudder
(Channel 5) Dual rates - Aileron, Elevator, and Rudder
(Channel 6) Not Used
(Channel 7) The main wheel can be retracted using the upper right two-position switch, deployed pushed forward, retracted pulled back).
(Channel 8) The flaps are deployed using the upper left flight mode switch, and deploy as 0 (pushed forward = Speed), 50% (middle), 100% (pulled back = Full Crow).
This channel also releases the aero tow hook 0 (pushed forward = Hook closed), 50% (Hook partially open), 100% (pulled back = Hook fully open).
Additional Cameras
F4 - Cockpit
F5 - Cockpit Left
F6 - Cockpit Right
F7 - Front
F8 - Overhead
F9 - Wing Tip - Left
F10 - Wing Tip - Right
