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E-flite Sobré 3D Profile Assembly Manual

Preflight

Check Your Radio

Before going to the field, be sure that your batteries are fully 

charged per the instructions included with your radio. Charge 

both the transmitter and receiver pack for your airplane. Use the 

recommended charger supplied with your particular radio system, 

following the instructions provided with the radio. In most cases, 

the radio should be charged the night before going out flying.
Before each flying session, be sure to range check your radio. 

See your radio manual for the recommended range and 

instructions for your radio system. Each radio manufacturer 

specifies different procedures for their radio systems. Next, start 

the motor. With the model securely anchored, check the range 

again. The range test should not be significantly affected. If it is, 

don’t attempt to fly! Have your radio equipment checked out by 

the manufacturer.

Note

: Keep loose items that can get entangled in 

the propeller away from the prop. These include 

loose clothing, or other objects such as pencils and 

screwdrivers. Especially keep your hands away from the 

propeller.

Double-check that all controls (aileron, elevator, rudder and 

throttle) move in the correct direction.
Check the radio installation and make sure all the control 

surfaces are moving correctly (i.e. the correct direction and with 

the recommended throws). Test run the motor and make sure 

it transitions smoothly from off to full throttle and back. Also 

ensure the engine is installed according to the manufacturer’s 

instructions, and it will operate consistently.
Check all the control horns, servo horns, and clevises to make 

sure they are secure and in good condition. Replace any items 

that would be considered questionable. Failure of any of these 

components in flight would mean the loss of your aircraft.

Flying the Sobré

Flying the Sobré is about as fun as it can get at the park. A very 

light wing loading and extreme control throws make for some 

exciting 3D flying. Verify that your CG is at the correct location 

as per the manual and that you have your rates set up to your 

liking. Verify that all control throws are in the correct direction 

and the motor spins in the correct direction as well.
Point the model into the wind and add some throttle trim until 

the motor begins to turn. This will be your flight idle. Now, apply 

power slowly. You will find the model will become airborne very 

quickly and at a low speed. This model excels at flying slow and 

easy, as well as slow and extreme. Trim the model for level flight 

at half throttle. Only use full throttle for maneuvering. Do not fly 

this model fast or at full throttle in level flight. Doing this will result 

in the flight controls fluttering and a potential catastrophic failure 

of the airframe.
You will find you can adjust the CG to your liking by moving the 

battery pack fore or aft on the wing.
To land the Sobré just reduce the throttle to idle and feed in up 

elevator until the model settles into a slightly nose high attitude. 

Gently fly the model down to the landing spot with a final flair at 

touchdown. You will find the model will have a very short roll out. 

We hope you enjoy the Sobré as much as we do.
Happy landings.

Summary of Contents for Sobre 3D Profile

Page 1: ...pan 33 25 in 845mm Length 34 5 in 875mm Wing Area 260 sq in 16 8 sq dm Weight w o Battery 6 25 7 5 oz 175 215 g Weight w Battery 7 5 9 25 oz 215 260 g Sobr 3D Profile Assembly Manual Designed by Georg...

Page 2: ...d and to provide breaks between each major section In addition check boxes have been placed next to each step to keep track of each step completed Steps with a single circle are performed once while s...

Page 3: ...interference free Spektrum DX6 2 4GHz DSM 6 channel system which includes a micro receiver and 4 sub micro 7 5 gram servos If using your own transmitter we recommend the use of a JR SPORT 6 channel U...

Page 4: ...p System EFLM1210HS Park 370 BL Outrunner 1200Kv w 4mm Hollow Shaft EFLA1010 10 Amp Pro Brushless ESC THP7303SJPL 730mAh 3 Cell 11 1V Li Po JST EFLC3005 Celectra 1 3 Cell Li Po Charger Optional Access...

Page 5: ...SER This warranty covers only those Products purchased from an authorized Horizon dealer Third party transactions are not covered by this warranty Proof of purchase is required for warranty claims Fur...

Page 6: ...our local hobby store and or place of purchase cannot provide warranty support or repair Once assembly setup or use of the Product has been started you must contact Horizon directly This will enable H...

Page 7: ...following address Horizon Product Support 4105 Fieldstone Road Champaign Illinois 61822 Please call 877 504 0233 with any questions or concerns regarding this product or warranty Safety Precautions an...

Page 8: ...ide the horizontal fuselage into the vertical fuselage starting at the opening for the wing radio equipment Use care not to damage any of the alignment tabs on the vertical fuselage 2 Locate the wing...

Page 9: ...rovide clearance of the alignment hole 4 Align the wing with the horizontal fuselage Use foam compatible CA to glue the wing to ONLY the horizontal fuselage Hint Use the holes for the aileron servos t...

Page 10: ...levator tip on each side of the airframe The measurements will be the same when the stabilizer elevator has been aligned with the wing Use T pins to hold the stabilizer in position for the next step 6...

Page 11: ...ieces until the mount rests flush against both 8 Apply foam compatible CA to the joint between the vertical and horizontal fuselage pieces from the leading edge of the wing to the front of the fuselag...

Page 12: ...Note It is important that each carbon rod attaches to the next and to the carbon blade spars on the edges of the foam This is necessary to provide the stiffest airframe possible 1 Locate the two 4 6 i...

Page 13: ...L 4 3 inch 110mm M 3 9 inch 100mm S 3 75 inch 95mm 4 With the airframe upright check that the stabilizer is parallel to the wing Lightly twist the fuselage as necessary for alignment 5 Use side cutte...

Page 14: ...e the rods in position The wing should be flat and parallel to the horizontal stabilizer while also being perpendicular to the vertical fuselage Use side cutters to trim away any excess carbn rod Radi...

Page 15: ...vos Drill a 1 16 inch 1 5mm hole in the end of all four of the servo arms Note We then suggest using the longest servo arms available for your servo to help achieve maximum control throws for 3D flyin...

Page 16: ...as shown Note the direction of the arms on the servos 7 Use hot glue to install the aileron servos Note The servo arms face toward the tips of the wing and the output shaft of the servo is toward the...

Page 17: ...the hole in the control horn closest to the aileron for the greatest amount of throw Moving the pushrod outward away from the aileron will result in gradually decreasing the control throws 10 Install...

Page 18: ...epending on how your aircraft balances Motor and Battery Installation Required Parts Airframe Plywood motor mount Motor w hardware Electronic speed control Propeller 2 x 8mm or 3 x 8mm wood screw incl...

Page 19: ...felt tipped pen making sure the holes you mark do not interfere with the carbon spars the mount will glue into Hint If the hole in your mount matches the diameter of the hole in the plywood mount use...

Page 20: ...motor as shown to allow the use of the propeller adapter Make sure to secure the shaft using instructions included with your motor 4 Attach the mount to your particular motor 5 Attach the motor to th...

Page 21: ...ors to your speed control Plug the speed control into the throttle channel of the receiver and to the motor Use hook and loop to secure the speed control to the fuselage Note It is suggested to secure...

Page 22: ...on on the bench with the propeller installed The plane could move and cause serious injury Always check the motor without the propeller to avoid injury 9 Install the propeller using the instructions p...

Page 23: ...1 Install the pitch servo as shown Take your time to make sure the servo horn and linkage does not bind against the fuselage Also check that the linkage is not being put under a load when connected Us...

Page 24: ...ight or flying from very rough surfaces it is suggested to skip this section 1 Locate the landing gear strut two wheel retainers and the wheel Use Foam compatible CA to install the wheel retainer onto...

Page 25: ...parallel or have slight toe in Use foam compatible CA to glue the struts to the fuselage and each other Make sure the wing is sitting parallel to the ground so the wheels are located at the same heig...

Page 26: ...an on saving weight or flying from very rough surfaces it is suggested to skip this section 1 Locate the upper side force generator Position the SFG on the wing aligning it with the two holes that hav...

Page 27: ...oam compatible CA to glue the carbon rods to each other and to the wing 4 Repeat Steps 1 through 3 for the remaining upper and lower SFG installation Battery Installation Required Parts Battery Hook a...

Page 28: ...uidelines measured from our own flight tests and those of Jon Leyland You can experiment with higher rates to match your preferred style of flying The following are the control throws suggested by Geo...

Page 29: ...your radio before each flying session This is accomplished by turning on your transmitter with the antenna collapsed Turn on the receiver in your airplane With your airplane on the ground and the engi...

Page 30: ...rding to the manufacturer s instructions and it will operate consistently Check all the control horns servo horns and clevises to make sure they are secure and in good condition Replace any items that...

Page 31: ...established in front of which all flying takes place with the other side for spectators Only personnel involved with flying the aircraft are allowed at or in front of the flight line Intentional flyi...

Page 32: ...10242 2007 Horizon Hobby Inc 4105 Fieldstone Road Champaign Illinois 61822 877 504 0233 horizonhobby com E fliteRC com...

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