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Hangar 9 Christen Eagle II 90 ARF

LIMITATION OF LIABILITy

HORIZON SHALL NOT BE LIABLE FOR SPECIAL, INDIRECT, 

INCIDENTAL OR CONSEQUENTIAL DAMAGES, LOSS OF 

PROFITS OR PRODUCTION OR COMMERCIAL LOSS IN ANY 

WAY, REGARDLESS OF WHETHER SUCH CLAIM IS BASED 

IN CONTRACT, WARRANTY, TORT, NEGLIGENCE, STRICT 

LIABILITY OR ANY OTHER THEORY OF LIABILITY, EVEN 

IF HORIZON HAS BEEN ADVISED OF THE POSSIBILITY OF 

SUCH DAMAGES. Further, in no event shall the liability of 

Horizon exceed the individual price of the Product on which 

liability is asserted. As Horizon has no control over use, 

setup, final assembly, modification or misuse, no liability 

shall be assumed nor accepted for any resulting damage or 

injury. By the act of use, setup or assembly, the user accepts 

all resulting liability. If you as the purchaser or user are 

not prepared to accept the liability associated with the use 

of the Product, purchaser is advised to return the Product 

immediately in new and unused condition to the place of 

purchase.

LAW

These terms are governed by Illinois law (without regard to 

conflict of law principals).  This warranty gives you specific 

legal rights, and you may also have other rights which vary 

from state to state.  Horizon reserves the right to change or 

modify this warranty at any time without notice.

Warranty Services

QUESTIONS, ASSISTANCE, AND SERvICES

Your local hobby store and/or place of purchase cannot 

provide warranty support or service. Once assembly, setup 

or use of the Product has been started, you must contact 

Horizon directly. This will enable Horizon to better answer 

your questions and service you in the event that you may 

need any assistance. For questions or assistance, please 

direct your email to [email protected], or 

call 877.504.0233 toll free to speak to a Product Support 

representative. You may also find information on our website 

at www.horizonhobby.com.

INSPECTION OR SERvICES

If this Product needs to be inspected or serviced, please 

use the Horizon Online Service Request submission process 

found on our website or call Horizon to obtain a Return 

Merchandise Authorization (RMA) number. Pack the Product 

securely using a shipping carton. Please note that original 

boxes may be included, but are not designed to withstand 

the rigors of shipping without additional protection. Ship 

via a carrier that provides tracking and insurance for lost 

or damaged parcels, as Horizon is not responsible for 

merchandise until it arrives and is accepted at our facility. 

An Online Service Request is available at http://www.

horizonhobby.com under the Support tab. If you do not have 

internet access, please contact Horizon Product Support to 

obtain a RMA number along with instructions for submitting 

your product for service. When calling Horizon, you will be 

asked to provide your complete name, street address, email 

address and phone number where you can be reached during 

business hours. When sending product into Horizon, please 

include your RMA number, a list of the included items, and a 

brief summary of the problem.  A copy of your original sales 

receipt must be included for warranty consideration. Be sure 

your name, address, and RMA number are clearly written on 

the outside of the shipping carton.

Notice: Do not ship LiPo batteries to 

horizon. If you have any issue with a LiPo 

battery, please contact the appropriate 

horizon Product Support office.

WARRANTy REQUIREMENTS 

For Warranty consideration, you must include 

your original sales receipt verifying the proof-

of-purchase date. 

Provided warranty conditions have 

been met, your Product will be serviced or replaced free 

of charge. Service or replacement decisions are at the sole 

discretion of Horizon.

NON-WARRANTy SERvICE

Should your service not be covered by warranty 

service will be completed and payment will be 

required without notification or estimate of the 

expense unless the expense exceeds 50% of 

the retail purchase cost. 

By submitting the item 

for service you are agreeing to payment of the service 

without notification. Service estimates are available upon 

request. You must include this request with your item 

submitted for service. Non-warranty service estimates will 

be billed a minimum of ½ hour of labor. In addition you 

will be billed for return freight. Horizon accepts money 

orders and cashiers checks, as well as Visa, MasterCard, 

American Express, and Discover cards. By submitting any 

item to Horizon for service, you are agreeing to Horizon’s 

Terms and Conditions found on our website http://www.

horizonhobby.com/Service/Request. 

UNITED STATES

(Electronics and engines)

Horizon Service Center

4105 Fieldstone Rd

Champaign, Illinois

61822 USA

[email protected]

877-504-0233

Online Repair Request visit:

www.horizonhobby.com/service

(All other products)

Horizon Product Support

4105 Fieldstone Rd

Champaign, Illinois

61822 USA

[email protected]

877-504-0233

Summary of Contents for Christen Eagle II 90 ARF

Page 1: ...Christen Eagle II 90 ARF Assembly Manual ...

Page 2: ... Support office This information is located in the back of this manual Specifications Wingspan 54 0 in 137cm Fuselage Length 50 8 in 129cm Wing Area total 878 sq in 56 7 sq dm Wing Area top 446 sq in Wing Area bottom 432 sq in Weight Range 8 50 lb 10 0 lb 3 85 4 50 kg Engine Motor Size 75 91 2 stroke 1 15 1 25 4 stroke E Flite Power 90 75A ESC 4S Li Po 2 Radio 4 channel with 5 servos 4 servos for ...

Page 3: ...P BAG 1 Wood battery tray 1 300mm triangle stock 1 Wood motor standoff box 4 M4 blind nuts Motor box to firewall attachment 2 M3 x 15 socket head machine screws 2 M3 steel washers 4 M4 x 25 socket head machine screws Motor box to firewall attachment 4 M4 steel washers Motor box to firewall attachment PUSHROD BAG 2 M3 x 270 double threaded rod with nuts Aileron interconnecting rods 1 12mm x 370mm a...

Page 4: ...Batteries Notes on Lithium Polymer Batteries When used improperly lithium polymer batteries are significantly more volatile than alkaline or Ni Cd Ni MH batteries used in RC applications Always follow the manufacturer s instructions when using and disposing of any batteries Mishandling of Li Po batteries can result in fire causing serious injury and damage Small Parts This kit includes small parts...

Page 5: ...870 Deep Blue HANU873 Orange HANU877 Black HANU874 Smoke Purple HANU868 Deep Red HANU871 Flame Red HANU883 Dark Yellow HANU889 Bright Yellow HANU872 Recommended Power Setups 4 Stroke Glow Saito 125 with Muffler SAIE125A or SAIE125AK Muffler Right Angle Manifold SAI125A163 Evolution 16 x 6 propeller EVO16060 Optional Hangar 9 23 4 inch aluminum spinner HAN99003 8 x 1 25mm Prop Adapter Kit HAN99052 ...

Page 6: ...e nose pliers Nut driver 4mm 7mm Open end wrench 10mm 12mm 1 2 inch Paper towels Pencil Phillips screwdriver 1 2 Pin vise Propeller reamer Rotary tool Ruler Sanding drum Scissors Side cutters Spray bottle Square Straight edge Tie wraps Toothpicks T pins Two sided tape Before Starting Assembly Before beginning the assembly of your model remove each part from its bag for inspection Closely inspect t...

Page 7: ...elage Use threadlock on the screws to prevent them from vibrating loose 3 Use medium CA to glue the landing gear cover in place on the bottom of the fuselage 4 Use hobby scissors to trim the landing gear intersection fairings Open the narrow end to allow the fairing to fit over the landing gear Trim as necessary so the fairing fits the contour of the fuselage Use silicone adhesive to glue the fair...

Page 8: ...ecure the wheel to the axle using the wheel collars remove earlier Tighten the setscrews using a 1 5mm hex wrench Make sure to use threadlock on the setscrews to prevent them from vibrating loose 10 Place the 5 16 inch metal washer then the 5 16 inch plywood washer on the threaded portion of the axle Fit the assembly into the wheel pant You may need to flex the wheel pant open slightly to fit the ...

Page 9: ... excess epoxy Use low tack tape to keep the joiner wire in position until the epoxy fully cures Use a straight edge along the hinge line to keep the elevators aligned while the epoxy cures 3 Remove the tape from the elevators Use a drill and 1 16 inch 1 5mm drill bit to drill a hole in the center of each hinge slot in the elevators and stabilizer This provides a tunnel for the CA to wick into when...

Page 10: ...elage Slide the remaining wing panel into position tightly against the fuselage The bottom wing is only installed so it can be used as a reference when installing the stabilizer Incorrectly aligning the stabilizer to the wing will produce an aircraft requiring additional trim to fly correctly and be detrimental to its flight characteristics Make sure to align the stabilizer as described 10 Slide t...

Page 11: ...paper towel and isopropyl alcohol to remove any excess epoxy before it cures Recheck the alignment of the stabilizer while the epoxy is curing to make sure it doesn t change position in the fuselage Allow the epoxy to cure before resuming building your model 16 Remove the wings from the fuselage Use a small amount of medium CA to glue the black covered balsa block in position at the rear of the fu...

Page 12: ...uselage for the bottom hinge on the rudder Tail Wheel and Control Horn Installation Required Parts Fuselage assembly Control horn backplate 2 Control horn 2 M2 x 12 machine screw 6 Tail wheel assembly Steering bracket N2 nut M2 x 15 machine screw M3 x 12 self tapping screws 2 1 Locate the items for this section of the manual 2 Use a 1 Phillips screwdriver to attach the rudder and elevator control ...

Page 13: ...er Make sure to use threadlock on the nut to prevent it from vibrating loose Slide the wheel collar against the tail wheel bracket and use a 1 5mm hex wrench to tighten the setscrew securing the position of the wheel collar Radio Installation Required Parts Fuselage assembly Receiver Receiver battery Switch harness Servo with hardware 3 3 inch 76mm servo extension 2 1 Remove the canopy from the fu...

Page 14: ...o the servos using the screws provided with the servos and a 1 Phillips screwdriver 5 With the radio system on and the elevator servo centered attach the clevis to the outer hole of the elevator control horn Adjust the clevis so the elevator is aligned with the stabilizer Once the clevis is set slide the silicone retainer over the forks of the clevis to keep the clevis from opening accidentally Ap...

Page 15: ...3 nut 4 Servo with hardware 2 3 inch 76mm servo extension 2 Bottom wing right and left 3mm metal clevis with silicone tubing 4 3mm x 70mm threaded rod 2 M2 x 12 self tapping screw 6 1 Locate the items for this section of the manual 2 Hinge the aileron following the procedure found in the section Tail Installation Fit the aileron to the wing Before gluing the hinges make sure the ends of the ailero...

Page 16: ...rfere with the operation of the servo The clevis for the aileron pushrod will attach to the hole on a 4 way servo horn that is 19 32 inch 15mm from the center of the horn 8 Tie the string located in the wing around the end of the aileron servo extension Use the string to pull the extension and servo lead through the wing Secure the aileron servo and cover to the wing using the M2 x 12 self tapping...

Page 17: ...ing loose Slide the silicone retainers over the forks of the clevises so they don t open accidentally in flight Cabane Strut Installation Required Parts Fuselage assembly Cabane strut right and left M3 nut 2 M3 washer 4 Upper wing center rib M3 x 10 socket head screw 6 1 Locate the items for this section of the manual 2 Use a hobby knife with a 11 blade to remove the covering on the top of the fus...

Page 18: ...engine template Triangle stock 300mm Motor battery 2 Speed control with connectors Tie wraps not included 9 inch 228mm servo extension Hook and loop tape not included Power 90 motor with hardware M4 x 25 socket head screw 4 M3 x 15 socket head screw 2 1 Locate the items for this section of the manual 2 Place the two hook and loop straps on the wood tray 3 Place the wood tray in the fuselage guidin...

Page 19: ...r to the wood box using the hardware included with the motor Make sure to use threadlock on all metal to metal fasteners to prevent them from vibrating loose 9 Solder any necessary connectors on the speed control Mount the speed control following the suggestions included with the speed control Connect the speed control to the motor Use a 9 inch 228mm servo extension to connect the lead from the sp...

Page 20: ...re up 2 inches 51mm and over 13 16 inches 30mm Use a drill and 5 32 inch 4mm drill bit to drill the hole for the throttle pushrod 5 Attach the right and left engine mounts to the firewall using four M4 x 30 machine screws four M4 washers and four M4 blind nuts Note the position of the mounts as shown in the photo with the rails toward the left side of the fuselage Use a 2 Phillips screwdriver to t...

Page 21: ... 9 Attach the engine to the engine mount using four M4 x 30 machine screws four M4 lock nuts and eight M4 washers Place the washers between the head of the bolts and engine mounting lugs and between the mount rails and nuts Use a 2 Phillips screwdriver and 7mm nut driver to tighten the hardware Fuel Tank Installation Required Parts Fuselage assembly Fuel tank Stopper assembly Clunk Fuel tubing 550...

Page 22: ...s screwdriver to tighten the screw to secure the stopper Do not over tighten the stopper and distort or split the neck of the tank Add fuel tubing to reach bottom 5 Cut three 41 2 inch 114mm pieces of fuel tubing Attach the fuel tubing to the tubes on the tank 6 Prepare the plywood fuel tank former by drilling a hole that is 7 8 inch 22mm from the side and 17 16 inch 32mm from the bottom using a p...

Page 23: ...d standoff 1 5mm x 750mm rod with nylon housing Pushrod connector with setscrew and m2 nuts 1 Locate the items for this section of the manual 2 Use medium sandpaper to sand three sections that are 1 4 inch 6mm wide on the pushrod tube The first is the end of the pushrod The next two are 51 2 inches 140mm and 91 4 inches 324mm from the end as shown This will allow the CA to adhere to the pushrod wh...

Page 24: ...dio to move the servo to the fully open position Move the linkage to open the carburetor Use a 2mm hex wrench to tighten the setscrew securing the pushrod wire Check the operation of the carburetor using the radio system to make sure the throttle moves freely from open to closed Use the ATV setting in the radio if necessary to make small adjustment 8 Use medium CA to glue the pushrod standoff to t...

Page 25: ...bit to drill the holes in the cowl mounting blocks for the cowl mounting screws 6 Use a 1 Phillips screwdriver to thread an M3 x 8 self tapping screw in each hole Remove the screw then apply 2 3 drops of thin CA in each hole to harden the surrounding wood The following steps are only necessary if your are installing a glow engine in your aircraft If you have elected to install the EP option skip t...

Page 26: ... the cowling for glow plug access or use a remote adapter so it can be accessed remotely The adapter is shown here eliminating the need for a hole in the cowling for the glow plug The additional weight of the adapter may require tail weight to achieve the desired center of gravity 12 Use card stock to locate any items that may need to be accessed from the outside of the cowl 13 Slide the cowl on t...

Page 27: ...pin 8 3mm x 270mm threaded rod Metal clevis with silicone tubing 4 M3 x 10 socket head machine screw 3 Wing transport frame with rubber bands 2 Bottom wing panel right and left Top wing panel right and left 1 Locate the items for this section of the manual 2 Insert two 2 6mm x 16mm aluminum pins in the bottom of the interplane strut Use a very small amount of medium CA to secure the pins Make sure...

Page 28: ...nterplane strut into position then secure it using an M3 x 45mm machine screw and 1 Phillips screwdriver 9 Install the remaining top wing panel Use an M3 x 45 machine screw and 1 Phillips screwdriver to secure the interplane strut The right and left upper wing panels are connected using an M3 x 12 socket head machine screw and M3 washer Tighten the screw using a 2 5mm hex wrench 10 Thread a clevis...

Page 29: ...wings 14 Repeat Steps 12 and 13 to remove the remaining wing panels from the fuselage To reattach the wings simply perform Steps 12 through 14 in reverse order Center of Gravity Required Parts Top wing assembly Bottom wing assembly Fuselage assembly An important part of preparing the aircraft for flight is properly balancing the model CAUTION Do not inadvertently skip this step 1 Attach the wings ...

Page 30: ... the right the rudder should also move right Reverse the direction of the servo at the transmitter if necessary 2 Check the movement of the elevator with the radio system Moving the elevator stick toward the bottom of the transmitter will make the airplane elevator move up 3 Check the movement of the ailerons with the radio system Moving the aileron stick to the right will make the right aileron m...

Page 31: ... battery voltage of the transmitter battery Do not fly below the manufacturer s recommended voltage To do so can crash your aircraft When you check these batteries ensure you have the polarities correct on your expanded scale voltmeter 2 Check all hardware linkages screws nuts and bolts prior to each day s flight Ensure that binding does not occur and that all parts are properly secured 3 Ensure a...

Page 32: ...ides tracking and insurance for lost or damaged parcels as Horizon is not responsible for merchandise until it arrives and is accepted at our facility An Online Service Request is available at http www horizonhobby com under the Support tab If you do not have internet access please contact Horizon Product Support to obtain a RMA number along with instructions for submitting your product for servic...

Page 33: ...or with gaseous boosts except for helicopters operated under the provisions of AMA Document 555 h Not operate model aircraft while under the influence of alcohol or while using any drug which could adversely affect the pilot s ability to safely control the model i Not operate model aircraft carrying pyrotechnic devices which explode or burn or any device which propels a projectile or drops any obj...

Page 34: ...ly in accordance with the procedures outlined in AMA Document 550 C FREE FLIGHT 1 Must be at least 100 feet downwind of spectators and automobile parking when the model aircraft is launched 2 Launch area must be clear of all individuals except mechanics officials and other fliers 3 An effective device will be used to extinguish any fuse on the model aircraft after the fuse has completed its functi...

Page 35: ...35 Hangar 9 Christen Eagle II 90 ARF Building and Flying Notes ...

Page 36: ...ademarks or registered trademarks of Horizon Hobby Inc The Spektrum trademark is used with permission of Bachmann Industries Inc Saito is a trademark of Saito Seisakusho Co Ltd Japan Aviat Aviat Aircraft and Eagle II are trademarks or registered trademarks of Aviat Aircraft Inc All other trademarks service marks and logos are the property of their respective owners ...

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