1. Introduction
This manual provides essential information for the safe and effective operation of your E-flite UMX F-86 Sabre 30mm EDF RC Jet. Please read this entire manual before assembly, setup, or use to ensure proper function and to avoid damage or injury. This model is a replica of one of the world's first jet-powered fighter aircraft, designed for an engaging flying experience.

Image 1.1: The E-flite UMX F-86 Sabre 30mm EDF RC Jet, showcasing its detailed silver finish and yellow accents.
1.1 What's in the Box
- E-flite RC Airplane UMX F-86 Sabre 30mm EDF BNF Basic (Model EFLU7050)
Note: Transmitter, battery, and charger are not included and must be purchased separately.
1.2 Safety Information
WARNING: Read the ENTIRE instruction manual to become familiar with the features of the product before operating. Failure to operate the product correctly can result in damage to the product, personal property, and cause serious injury.
This is a sophisticated hobby product. It must be operated with caution and common sense and requires some basic mechanical ability. Failure to operate this Product in a safe and responsible manner could result in injury or damage to the product or other property. This product is not intended for use by children without direct adult supervision. Do not use with incompatible components or alter this product in any way outside of the instructions provided by Horizon Hobby, LLC. The product manual contains instructions for safety, operation, and maintenance. It is essential to read and follow all the instructions and warnings in the manual, prior to assembly, setup or use, in order to operate correctly and avoid damage or serious injury.
2. Setup
The E-flite UMX F-86 Sabre is factory-assembled, requiring minimal setup before flight. This section details the necessary steps to prepare your aircraft.
2.1 Pre-Flight Inspection
- Inspect the airframe for any damage from shipping.
- Ensure all control surfaces (ailerons, elevator, rudder) move freely and are centered.
- Check that the landing gear is securely attached and functional.

Image 2.1: Detail of the nose landing gear, which should be checked for secure attachment.
2.2 Binding the Receiver
This Bind-N-Fly (BNF) Basic model is equipped with a Spektrum 2.4GHz DSMX receiver. You will need a compatible Spektrum DSMX/DSM2 aircraft transmitter to operate this model. Follow your transmitter's instructions for binding to a new receiver.
The aircraft features AS3X (Artificial Stabilization – 3-axis) technology and optional-use SAFE Select flight envelope protection. No programming is required for these features; they are built into the receiver.

Image 2.2: AS3X and SAFE Select logos, indicating advanced flight stabilization features.
SAFE Select Features:
- Pitch and Bank Angle Limits: These limits prevent the airplane from rolling or pitching upside down and help prevent excessive climb or dive angles.
- Automatic Self-Leveling: The airplane instantly returns to and holds level flight when the sticks are released and centered. This assists in keeping the wings level during takeoffs, launches, and landings.
- Easy Switch Assignment: For UMX models like this one, SAFE Select is automatically assigned to channel 5 (Gear). You can turn it on and off with any switch assigned to that channel (typically switch A on most Spektrum computer transmitters).
2.3 Battery Installation
The UMX F-86 Sabre requires a compatible 4S LiPo battery (not included). Ensure the battery is fully charged before installation. Carefully insert the battery into the designated compartment, securing it to prevent movement during flight. Proper battery placement is crucial for maintaining the aircraft's center of gravity (CG).

Image 2.3: Side profile of the F-86 Sabre, showing the fuselage where the battery compartment is located.
3. Operating Instructions
This section outlines the procedures for flying your E-flite UMX F-86 Sabre.
3.1 Pre-Flight Checks
- Confirm battery is fully charged and securely installed.
- Verify transmitter battery level is sufficient.
- Perform a range check according to your transmitter's manual.
- Check control surface response and direction relative to stick inputs.
- Ensure SAFE Select is enabled or disabled as desired for your flight conditions and skill level.

Image 3.1: A pilot holding the UMX F-86 Sabre, demonstrating a typical hand-launch position.
3.2 Takeoff
The UMX F-86 Sabre can be hand-launched or take off from a smooth surface using its landing gear.
- Hand Launch: With the motor at full throttle, firmly toss the aircraft forward and slightly upwards into the wind. Maintain a level attitude with the elevator.
- Ground Takeoff: Position the aircraft on a smooth, flat surface facing into the wind. Gradually increase throttle to full. Apply slight up elevator as speed increases to lift off.
3.3 Flight Controls and Characteristics
The F-86 Sabre is a jet model and exhibits different flight characteristics compared to propeller-driven aircraft. It is fast and responsive. Utilize the AS3X stabilization for smooth flight and SAFE Select for added stability, especially if you are less experienced with EDF jets.

Image 3.2: The UMX F-86 Sabre in stable flight, showcasing its agility.

Image 3.3: The F-86 Sabre in flight, highlighting its AS3X and SAFE Select capabilities.
3.4 Landing
Approach for landing should be gradual, reducing throttle to manage speed. Maintain a slight nose-up attitude to bleed off speed and gently touch down. For grass fields, a belly landing without landing gear can be performed by cutting power and gliding to a gentle touchdown.

Image 3.4: Rear view of the F-86 Sabre, illustrating the 30mm EDF unit.
4. Maintenance
Regular maintenance ensures the longevity and performance of your E-flite UMX F-86 Sabre.
4.1 Post-Flight Inspection
- Check for any damage to the airframe, wings, or control surfaces.
- Inspect the EDF unit for debris or damage to the fan blades.
- Ensure all linkages and servos are functioning correctly and are free from binding.
- Allow the motor and battery to cool before storing.
4.2 Cleaning and Storage
- Clean the aircraft with a soft, dry cloth. Avoid using solvents.
- Store the model in a cool, dry place, away from direct sunlight and extreme temperatures.
- Remove the battery for long-term storage.
5. Troubleshooting
This section addresses common issues you might encounter with your UMX F-86 Sabre.
| Problem | Possible Cause | Solution |
|---|---|---|
| Aircraft does not respond to transmitter. | Not bound, low transmitter/receiver battery, incorrect model memory selected. | Re-bind the aircraft, charge batteries, select correct model on transmitter. |
| Aircraft will not take off or lacks power. | Low flight battery, damaged EDF unit, incorrect CG, motor issue. | Charge flight battery, inspect EDF for damage, verify CG, check motor connections. |
| Aircraft flies erratically or is difficult to control. | Control surfaces not centered, damaged servo, incorrect trim, wind conditions. | Check and adjust control surface centering, inspect servos, adjust trim, fly in calmer conditions. |
| Motor makes rattling noises or smokes. | Damaged EDF fan, motor failure, foreign object in EDF. | Immediately cut power. Inspect EDF for damage or obstructions. Motor replacement may be necessary. |
6. Specifications
Detailed specifications for the E-flite UMX F-86 Sabre 30mm EDF RC Jet.
- Product Dimensions: 20.2 x 8.3 x 20.9 inches
- Item Weight: 4.51 pounds
- Model Number: EFLU7050
- Manufacturer Recommended Age: 14 months and up (Note: RC aircraft typically require higher skill levels than implied by this age; adult supervision is essential.)
- Manufacturer: Horizon Hobby
- First Available: April 25, 2024
7. Warranty and Support
For warranty information and technical support, please refer to the official E-flite or Horizon Hobby website. Keep your proof of purchase for any warranty claims.
Horizon Hobby provides comprehensive support resources, including FAQs, troubleshooting guides, and contact information for customer service. It is recommended to register your product on their website.
For additional resources and product information, visit the E-flite Store on Amazon.





