Flex innovations FlexJet Pro 90 mm Instruction Manual Download Page 3

 

The 

FlexJet Pro 90 mm

 combines fast jet performance with modern aerodynamics. The stiff and clean airframe 

excels at traditional jet aerobatics, while the modern aerodynamics with features such as Leading Edge Root 

eXtensions (LERX’S), and Dog Too

th leading edges allow an extended angle of attack range. 

The trailing-link landing gear is forgiving on takeoffs and landings. And the wing spar carries through the fuselage 
making the aircraft stiff and strong.  

The carefully engineered full flow ducting is efficient at high and low speeds 

Specifications: 

Wing Span 

 

  

1127mm (44.4  in.) 

Length   

 

 

1486mm (58.5  in.) 

Weight (without battery) 

4.9kg (10lb 13oz)  With 8S 6200 40C Battery 

Radio Transmitter 

 

6*-9 Channel 

 
*Retracts (CH5) and Flaperons (CH6) are considered standard. 
 
(4 Servos for LG Doors and Nose Wheel Steering and 3 Retracts with high quality trailing-link Struts and a 
Sequencer are included.) 
 

Non-Aura

 users can also program transmitter for dual elevators for a 7

th

 channel. Optional Wheel Brakes are an 

8

th

 channel. 

 

Aura

 users would typically use 7 transmitter channels (8 with wheel brakes).  

*Aura users can fly with a 6 channel transmitter and put flaperons on a flight mode (and use the same transmitter 
channel (6)/Tx Switch for Aura Flight Modes and Flaperons. Wheel brakes would not be practical with 6 channels. 
Aura users need a minimum of a six channel receiver with working serial output. Receiver ports for Throttle and 
Retract Landing Gear will be used, other flight controls can be plugged directly into Aura. 
 

NOTE:

 the recommended 90mm EDF  range is 8S and about 2800 to 3600 Watts. 6S setups are likely possible, but 

have not been evaluated by Flex Innovations as of this writing. Higher Wattage setups have not been tested and 
would void any and all actual or implied warrantees. 
 

Required Equipment: 

Transmitter:     

 

6* channel (7-9+ channel preferred) 

Receiver: 

 

 

6*-9+ channel HV capable (8+ channel with serial output recommended) 

Servos:   

 

 

5 high performace mini servos: (2) Flaperons, (2) Stabs/Elevator, (1) Rudder 

 

 

 

 

 

7-10kg/cm torque, metal gear, digital.  (FPZDS11106BLHV recommended) 

 

Receiver Battery: 

 

2S LiPo 1400-2200 15C+.  (FPZBR20002S55 recommended) 

90mm EDF Unit: 

 

As chosen  (FPMDFJP908S Flex 8S 90mm by JP - recommended) 

ESC: 

 

 

 

As Required for your power system 
(V-Good 120A HV 

 recommended (FPZEDFVG8S120BEC) -Disable BEC) 

Power Battery:   

 

As chosen 
8S 6200 mAh 40C 

 highly recommended (FPZB62008S40C)  

8S 4000 mAh 75C 

 also works if you have available (FPZB40008S75C) 

 

Miscellaneous: 

(3) 

24” servo extension leads (Elev, Elev, Rudd)

 

Summary of Contents for FlexJet Pro 90 mm

Page 1: ...1 Instruction Manual...

Page 2: ...Y OF YOUR AIRCRAFT PLEASE VISIT OUR WIKI SUPPORT SITE FOR THE LATEST PRODUCT UPDATES FEATURE CHANGES MANUAL ADDENDUMS AND FIRMWARE OR CONFIG FILE CHANGES FOR THE AURA PROFESSIONAL ADVANCED FLIGHT CONT...

Page 3: ...flaperons on a flight mode and use the same transmitter channel 6 Tx Switch for Aura Flight Modes and Flaperons Wheel brakes would not be practical with 6 channels Aura users need a minimum of a six...

Page 4: ...cause serious or fatal injury All instructions warranties and other collateral documents are subject to change at the sole discretion of Flex Innovations LLC For up to date product literature please v...

Page 5: ...re every flight 7 If you are not an experienced pilot or have not flown a high performance model before it is recommended that you seek assistance from an experienced pilot in your R C club for your f...

Page 6: ...carefully remove the covering in the area around the horns as shown 3 Glue the 3 horns into the 3 surfaces with 15 minute epoxy Be sure to use a small stick to coat the inside of the hole thoroughly...

Page 7: ...nds force on each control surface to confirm it is secure 7 Repeat steps 4 to 6 to install the Rudder onto the Fin The gap at top between the fin and the rudder balance tab is about 2mm 8 Select arms...

Page 8: ...ng the slot orientation above and just below Use the correct drill for your servo screws typically about 1 16 or 1 5mm to drill the servo mounting holes Screw the servo to the inside of the hatch usin...

Page 9: ...and longer lasting threads 15 Fit the missile rails to the wing tips Secure them lightly with 3mm x 12mm socket head cap screws After fitting you can disassemble it an apply thin CA to the screw s hol...

Page 10: ...until the doors are well closed but without binding or stalling If any binding stalling is suspected power down and disconnect the doors servo leads reinstall them one at a time while adjusting the l...

Page 11: ...he right air intake is recommended 2 Mount the receiver and antenna s according to your manufacturer s recommendations We suggest mounting the receiver with hook and loop tape This will allow access l...

Page 12: ...it cannot be unplugged TIP Use dental floss to tie the servo lead extension junction together 2 Fit the elevator servos into the servo mounts in the aft fuselage as shown in steps below noting that i...

Page 13: ...cular shim over each stab axle 6 Check the balance of the stab It has leading edge weight applied at the factory The stab should balance level or pivot slightly to the nose leading edge If it needs we...

Page 14: ...assembly The arm typically can be removed later if desired by removing the screw and gently flexing the arm back and forth 13 Connect the stab linkages making sure the length is properly adjusted You...

Page 15: ...ing back the center red wire on the ESC s throttle lead A 2S LiPo will be used to power the receiver and accessories 4 Assemble the included plywood ESC mounting parts 5 Temporarily fit the plywood ba...

Page 16: ...d back edges to allow easier installation 3 Remove the fans aft center body fairing and set aside On the JP made fans this is a normal thread 4 Remove the fans front bell mouth if equipped and store i...

Page 17: ...fans 8 Plug the Motor and ESC wires together The wire basically wraps around from the above top the duct at the front to below bottom the duct at the back 9 Connect the radio and flight batteries and...

Page 18: ...nd 4 3mm washers Install the Tailpipe 1 Re install the fan s center body fairing Some users prefer to save the weight and run without it 2 Fit the tailpipe over the OUTSIDE of the fan unit Temporarily...

Page 19: ...hen the fin and the covering adhesion 6 Apply 15 minute epoxy to the mating surfaces and assemble with the fixture Let cure thoroughly 7 You may optionally apply clear vinyl tape to the bottom of the...

Page 20: ...e to the model and mark it on both sides of the fuselage for the balancing process After first flights pilots can adjust the CG fore and aft up to 6mm per their preference 2 Temporarily install your p...

Page 21: ...attery as required 8 Slide the mount into the slot in the nose of the model and secure the aft end with the forward battery mount screw It can easily be removed for charging with one screw 9 The motor...

Page 22: ...mitter channels are available Aura Config files on the Wiki will have additional notes Flight Tips We recommend using the Flaperons On landing they will allow a slower speed at a lower angle of attack...

Page 23: ...istered trademarks of Horizon Hobby LLC Futaba is a registered trademark of Futaba Denshi Kogyo Kabushiki Kaisha Corporation of Japan Jeti UDI and Jeti Model are trademarks or registered trademarks of...

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