The Flexjet Pro 90mm ARF Jet

Maybe we should refer to the ARF jet as an ARF+ Jet, as it does include a lot of parts that are usually extra for a normal ARF.

Flexjet Pro 90mm EDF ARF+

Photo Gallery




Flexjet Pro 90mm EDF ARF+
Flexjet Pro 90mm EDF ARF+
Flexjet Pro 90mm EDF ARF+
Flexjet Pro 90mm EDF ARF+
Flexjet Pro 90mm EDF ARF+
Flexjet Pro 90mm EDF ARF+
Flexjet Pro 90mm EDF ARF+
Flexjet Pro 90mm EDF ARF+
Flexjet Pro 90mm EDF ARF+
Flexjet Pro 90mm EDF ARF+
Flexjet Pro 90mm EDF ARF+
Flexjet Pro 90mm EDF ARF+
Flexjet Pro 90mm EDF ARF+
Flexjet Pro 90mm EDF ARF+
Flexjet Pro 90mm EDF ARF+
Flexjet Pro 90mm EDF ARF+
Flexjet Pro 90mm EDF ARF+
Flexjet Pro 90mm EDF ARF+
Flexjet Pro 90mm EDF ARF+
Flexjet Pro 90mm EDF ARF+
Flexjet Pro 90mm EDF ARF+
Flexjet Pro 90mm EDF ARF+
Flexjet Pro 90mm EDF ARF+
Flexjet Pro 90mm EDF ARF+



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Features




  • Professionally painted fiberglass fuselage and wood-built wings for clean, pro-class performance
  • Expertly engineered inlet lips and full ducting provides incredible thrust while remaining clean and efficient
  • Modern aerodynamics such as leading-edge root extensions (LERX’s) and ball bearing supported all-moving stabilizers for high performance and easy handling, even at lower air speeds
  • The included and installed retracts, gear door servos and nose gear servo save hours of build and setup time and are also designed to work with high voltage power systems (8.4V)
  • Included and installed CNC-machined trailing link struts provide excellent ground handling, even on grass or rough fields
  • Large battery compartment with easy-access top hatch provides great access to the flight battery and other key electrical components
  • (4) DS16HV gear door servos included and installed
  • Ball bearing supported and mass-balanced, all-moving stabilators
  • Custom painted and covered in a high-visibility, military-inspired trim scheme
  • Oracover Colors:   21-011 – Grey, 21-060 – Orange, 21-010 – White, 21-071 – Black
  • UltraCote Colors:  HANU882 – Light Gray  HANU877 – Orange  HANU870 – White  HANU874 – Black



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Specifications

Flexjet Pro ARF Jet

  • Wingspan: 44.4" (1127mm)
  • Length: 58.5" (1486mm)
  • Wing Area: 320 sq."(20.65dm sq.)
  • Weight:10lbs 13 oz(173oz)(4.9kg)-inc. 8S 6200mAh battery
  • Wing Loading: 77.85oz/sq.ft.(237.5g/dm sq.)
  • Fan-90mm diameter- 12 blade
  • Power system-8S 4000-6200mAh+40C+
  • Receiver battery: 1500-2000 mAh 15C+ 2S
  • ESC- 120A 8S capable high voltage
  • Electronic retractable main gear and steerable nose gear with all metal shock absorbing struts
  • Ailerons-Yes
  • Elevator-Yes
  • Rudder-Yes
  • Flaps-Yes (Flaperons)
  • Lights-no
  • Hinge Type- CA material
  • Material-Fiberglass and balsa and ply surfaces (Film covered)
  • Skill Level-New or experienced jet pilot
  • Recommended Environment-Outdoor 300 ft. min runway or short grass




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Parts Included




  • Fiberglass fuselage-painted (1)
  • Wing panel, film covered (1-LH & 1 RH)
  • All flying tail plane, film covered (1-LH & 1RH)
  • Rudder (1)
  • Retracts installed, with gear doors and steering servos installed. (A total of 4 servos)
  • Removable cockpit hatch 



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Extras Required




  • 8+ Channel transmitter and receiver



90mm EDF Unit

JP Hobby/Flex Innovations 90mm 8S EDF unit and motor.

JP Hobby/Flex Innovations 90mm 8S EDF unit and motor is the recommended EDF for this ARF jet.

Please click here, to visit the Flex Innovations site for full information.

The price is $279.99 USD





ESC Unit

V-GOOD 120A ESC.

The recommended matching ESC unit is the V-GOOD 120A 8S ESC with 5,5-8A SBEC by Flex innovations.

Click here to visit the page on their site.

Note:Disable BEC by taping back the Red throttle lead wire for use in the FlexJet Pro, then use 2S LiPo flight pack as recommended.

The current price is $149.99 USD.





Receiver Battery Pack

2S 2000MAH 15C LIPO RECEIVER PACK.

2S 2000mAh 15C Lipo receiver pack.

Click here to visit the page on the Flex Innovations site.

The price is $24.99 USD + shipping.




Flight Battery

8S 6200 mAh 40C Lipo battery/

The flight battery should be an 8S 6200mAh 40C Lipo.

Click here to visit the page on the Flex Innovations website.

The current price is $199.99 USD +shipping cost.





Flight surface servos




The DS 11106BLHV brushless mini servo, by Potenza.

The DS 11106BLHV brushless mini servo, by Potenza, has been developed specifically for the use in the Flexjet Pro ARF jet. 5 units are required (Ailerons/flaps-2,elevators -2, rudder-1.)

Click here to visit the page on the Flex Innovations website.

The current price is $109.99 USD each.





3 Axis Gyro-Optional




The Aura 8 AFCS Gyro.

This is a basic gyro-the Aura 8 AFCS. Compatible with most popular radios and can be used on any fixed wing RC airplane.

The price of this unit is $119.99 USD.

Click here, to visit the page on the Flex Innovations website






Gyro: Aura Professional-Optional




The Aura Professional Gyro.

If you are using a turbojet to power the Flexjet Pro ARF jet, then you should definitely consider using the Aura Professional.  

The sound generated by a turbojet can interfere with some gyros, and the Aura Professional solves this problem. 

An 8 port model is available at a price of $269.99 USD and a 12 port model is $319.99 USD.

Click here to visit the Flex Innovations website, for full information.








Aura Pro Remote Sensor-Optional




The Aura Pro Remote Sensor.

Flex Innovations has done considerable research to find the solution to Turbojet noise interfering with the Aura Pro gyro. This remote sensor can be mounted remote from the turbine.

The price of this unit is $69.99 USD.

Click here to visit the page, on the Flex Innovations website, for full details.






Flex/JP 55MM Wheels, Brakes & Brake Controller-Optional

Flejet Pro wheel brakes.

If you fly your ARF jet from a hard-topped runway, then you will find that electric wheel brakes will help to shorten the landing run.

The price for  new wheels, with brakes and a controller is $99.99 USD. 

Click here to visit the page on the Flex Innovations website.





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Videos




Good video, but no construction details, in fact I could find no videos that showed unboxing or a build sequence.




Hard to see, but good comments on the EDF version.




This is a Flex Innovations official video, showing the EDF version




This one shows a turbine version (Kingtech K45), but no internal details.




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Manual




An excellent manual with lots of photographs.

Click here or on the image to see a PDF version, that can be downloaded.




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Pros




  • High quality construction
  • Fiberglass molded fuselage
  • Balsa and ply constructed flying surfaces, covered in film.
  • Profesionally spray painted fuselage
  • No foam!
  • Easier to repair than a foam model
  • Full, effecient ducting to the EDF unit gives maximum thrust
  • Fully installed retracts, doors and servos
  • Great flying performance (See videos)



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Cons




  • CA type hinges, could be a source of problems and do not belong on this class of ARF jet. At least consider replacing them or at least pinning them with toothpicks.
  • I would prefer separate flaps rather than "flaperons" 
  • On the expensive side-If you have to purchase the kit, EDF unit, batteries etc., the cost is pushing $1500.00 USD
  • There is no build video
  • There is no list of items included in the box of this ARF jet
  • The wing loading is high, but there may be some lift generated by the fuselage, that could help. The performance in the videos certainly looks very good. 




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Unique Features




  • Fiberglass fuselage, with professionally applied spray finish
  • Fully ducted EDF unit, from custom engineered inlets to outlet
  • Landing gear, doors and door servos installed
  • Ball bearing supported and mass-balanced, all-moving stabilators







Development




Flexjet-g2-90mm-edf-super-pnp

The Flexjet Pro was directly developed from the Flexjet G2 90mm Super PNP. 

This was an all EPO foam and composite construction ARF jet. that was a little smaller and uses 6S lipos(as compared to 8S used in the Pro)

Click here to see full details








Competition




Competing RC airplanes are 90mm EDF powered sport jets. They should fly better than scale jets, as they are designed, as models, from the ground up. 




All foam composite construction, with 6S lipo power.




All foam composite construction, with 6S lipo power.




All balsa and ply construction (including the fuselage), with film covering.

8-12S power







Modifications




  • Add a pilot figure
  • Make a hole in the canopy to relieve heat build-up
  • Prevent nose wheel steering jamming




Turbine Conversion

FlexJet Pro Turbine mounting parts

3mm thick laser cut parts are available, for mounting the Kingtech K45 turbine.

Price of the parts is $22.99USD. Click here to visit the page on the Flex Innovations website.





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Review Notes









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Purchasing




We have listed 3 possible sources for this ARF jet. Please note that we do not receive any commission from any vendor. Links are provided for your convenience. Remember to check shipping costs from each vendor.  






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Conclusion




  • The Flex Innovations Flexjet Pro 90mm EDF ARF+ is a true state-of-the-art ARF Jet. With its fiberglass fuselage with mounted landing gear and balsa and ply, film covered flying surfaces, it should last a long time.
  • Keep those landings smooth and any repairs should be easy, for the experienced modeler.
  • The price may be on the high side, but the quality of construction and finish are second to none.
  • As the videos show, the flight performance is very smooth and the 8S power system gives lots of thrust.



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