OMP Hobby Challenger User guide

CHALLENGERCHALLENGER

OMP Hobby 49” Challenger is a sport RC model airplane built in the traditional way: balsa and film cover.
The airplane features light yet strong structure, low wing load, and abundant power, making the airplane
easy to fly and capable of a lot of advanced aerobatics, such as all P3A and a few 3D maneuvers. This
airplane performs very well in either low or high speed, with great authenticity and precision in response to
radio stick movements, ideal for pilots who graduated from trainer airplanes to the next level of skills.

The optional 49” Challenger receiver ready version is an almost completed kit in factory. Motor, ESC,
servos, Ailerons, elevator, are all installed. Landing gear is preassembled. Propeller is included in the kit. It
takes no more than an hour to put the kit together and ready for the sky.

SpecificationsandPartsRecommendations

Wingspan

49 in（1250mm）

Wing Area: 28dm² or 434 in²
(3.01 ft²)

Motor: Sunnysky X2820
1100KV Outrunner

Propeller: SunnySky Eolo
12x6.5” electric propeller

39.6 in（1006mm）

Wing Loading: 41.8g/dm²
or 13.7oz/ft²

ESC: SunnySky 40A with 5V
3A BEC

Servos: 4 of 17g OMPHOBBY
metal gear digital servos.

Length

CG: 62mm from the leading

edge of main wings

Flying Weight: 1170g or 41.3oz

Battery: 3S 11.1V LiPo,
2200mAh (optional)

Flight time: 5~10 minutes

www.OMPHobby.com www.OhioModelProducts.com

CHALLENGERCHALLENGER

Two colorschemesavailable

Packagecontents(receiverreadyversion)

1

11

10

5

1. Fuselage

2. Lefthalfwing

3. Righthalfwing

4. Horizontal

stabilizer

5. Rudder

6. Tube

7. Tailwheel

8. Linkrods

9. Adhesive

2

3

4

8

9

7

6

Velcro

10. Landinggear

11. Propeller

Thefollowingdescriptionsapplytothereceiverreadyversiononly.
Not all parts and assembly works are available in the ARF version.

*Mainlandinggearhasbeenassembledin
factory.
*Allballtierodsarepreassembled.
*Allservohornshavealreadybeeninstalled.
*Allballjointshavebeeninstalled.
*Hingeslotsarecutinfactory.

*Servoleadstapedforeasyaccess.
*ESC,motor,andservosareinstalled
infactory.

Cut off a small piece of cover film to expose the
hole used for holding the steel of tail wheel.

Installation of Horizontal
Stabilizer

Attach tail horizontal stabilizer to the fuselage.

Install the T-shaped plate to the tail and secure
it with screws.

Insert the steel wire of tail wheel through the
hole in horizontal stabilizer.

Installation of Elevator
and Tail Wheel

Drill a hole in the rudder that will hold the
steel wire of tail wheel.

Secure hinges with thin CA glue.

Align steel wire and hinges and put vertical
stabilizer and rudder together.

Landing Gear Installation

The mounting screws of landing gear are
installed on the fuselage to prevent missing
parts.

Take out the screws from the bottom of

fuselage with 2.5mm Alan screwdriver.

Align the landing gear to the hole
locations and tighten the three screws.
Application of threadlocker is highly
recommended.

1. Servo horns are installed at
center position in factory.
Hook servos to a receiver to
check center point if
necessary.

2. Level the control surfaces,
and set rudder arms at 90
degree positions.

Installation of
Servo Link Rods

4. Push the ball joint head to
the ball head by using pliers
or hand.

3. Adjust the link rod length by
turning the ball joints to
appropriate positions.

7

5. Electrify the servos to make
sure all the control surfaces
are installed in the center
positions.

Installation of
Servo Link Rods
(continued)

Installation of
Propeller

Recommended Settings of Dual Rates and

Exponentials of Control Surfaces

Lowrate Lowrateexp Highrate Highrateexp

Ailerons 60 40% 100 40%

Elevator 50 30% 100 30%

Rudder 60 30% 100 30%

Flaps 80 ~ 100 ~

ForcustomersupportintheUSA,please
contactOhioModelProductsinOhio.
Tel:+1‐614‐733‐9488 (9am‐5pm,ET)
Email:[email protected]
Website:www.OhioModelProducts.com

DisclaimerandSafety

• Thisproductisnotatoy.Itisnotrecommendedforchildrenunderage14.

• Flytheairplanebyabidingbylocallawsandrules.

• Flytheairplaneinadesignatedlocation,andalwaysmaintainvisualcontactoftheaircraft.

• Avoidflyingdirectlyoverunprotectedpeople,movingvehicles,andoccupiedstructures.

• ReadthesafecodeofAMAbeforeflight.Theguidelinecanbedownloadedfromthefollowinglink:

www.modelaircraft.org/files/100.pdf

ForcustomersupportoutsideoftheUSA,
pleasecontactOMPHobby inChina.
Tel:+86‐755‐8672‐4337
Email:[email protected]
Website:www.OMPHOBBY.com