Seagull Models Grove GR7 Madness, Assembly Manual

Page 1: ... ASSEMBLY MANUAL Specifications Wingspan 70 9in 180cm Wingarea 582 8sq in 37 6sqdm Weight 7 1lbs 3 2kg Length 47 1in 119 6cm Engine 0 55cu in 2 stroke 0 72cu in 4 stroke Radio 4channelswith5 servos Electricconversion optional Flyingskilllevelintermediate advanced ...

Page 2: ...struction manual is designed to help you build a great flying aeroplane Please read this manual thoroughly before starting assembly of your GROVE GR7 MADNESS Use the parts listing below to identify all parts WARNING Please be aware that this aeroplane is not a toy and if assembled or used incorrectly it is capable of causing injury to people or property WHEN YOU FLY THIS AEROPLANE YOU ASSUME ALL R...

Page 3: ...e steps that follow using a high quality thin C A glue 2 Remove each hinge from the wing panel and aileron and place a T pin in the center of each hinge Slide each hinge into the aileron until the T pin is snug against the aileron This will help ensure an equal amount of hinge is on either side of the hinge line when the aileron is mounted to the wing panel Note 1 Carefully remove the aileron from...

Page 4: ...ld lightly contact the wing during this procedure Ideally when the hinges are glued in place a 1 64 gap or less will be maintained throughout the lengh of the aileron to the wing panel hinge line The hinge is constructed of a special material that allows the C A to wick or penetrate and distribute throughout the hinge securely bonding it to the wood structure of the wing panel and aileron Note Hin...

Page 5: ...poxy Elevator control horn Install the elevator control horn using the same method as same as the aileron control horns INSTALL ELEVATOR CONTROL HORN Fiberglass control horn Position the Control horn on the Aileron and use 30 minute Epoxy Epoxy Epoxy INSTALL RUDDER CONTROL HORN 1 Locate the hardware necessary to install the control horns for the rudder Fiberglass control horn 2 Position the Contro...

Page 6: ... fuel line Connect one end of the line to the weighted fuel pick up and the other end to the nylon pick up tube Vent tube Fuel pick up tube Fuel fill tube ENGINE MOUNT INSTALLATION 1 Locate the items necessary to install the engine mount included with your model 2 Use four 4x30mm head bolts and four 4mm washers to attach the engine mount rails to the firewall Tighten the screws Make sure to use th...

Page 7: ...e the tank is installed inside the fuselage it may be difficult to determine which is which FUEL TANK INSTALLATION 7 Slide the fuel tank into the fuselage Guide the lines from the tank through the hole in the firewall Fuel tank 8 Use plywood template to hold in place the fuel tank with C A glue to secure the fuel tank inside the fuselage Vent tube Fuel pick up tube Fuel fill tube 9 Connect the lin...

Page 8: ...e drive washer 110mm forward of the firewall as shown Throttle servo Elevator servo Rudder servo THROTTLE SERVO ARM INSTALLATION Install adjustable servo connector in the servo arm as same as picture below Machine screw M3x25mm Pushrod wire 7 Slide the throttle pushrod wire into the tube Position the engine between the mounts Use four M3x25mm machine screws to secure the engine to the mount as sho...

Page 9: ...ith the marks you made on the fuselage then trim and cut as shown Because of the size of the cowl it may be nec essary to use a needle valve extension for the high speed needle valve Make this out of suf ficient length 1 5mm wire and install it into the end of the needle valve Secure the wire in place by tightening the set screw in the side of the needle valve Trim and cut Trim and cut Trim and cu...

Page 10: ... as shown not included with your model 3 Attach the motor to the front of the electric motor box using four 3mm blind nut four M3x15mm hex head bolts to secure the motor Please see picture shown M4x20mm Machine screw M3x10mm Needle valve 3 Install the muffler and muffler extension onto the engine and make the cutout in the cowl for muffler clearance Connect the fuel and pressure lines to the carbu...

Page 11: ...11 www seagullmodels com 4mm 4mm Blind nut Battery Balsa stick Electric motor Epoxy 110mm Epoxy M3x15mm ...

Page 12: ...on the blocks 2 Use drill bit in a pin vise to drill the mouting holes in the blocks INSTALLING THE SPINNER Speed control 4 Attach the speed control to the side of the motor box using two sided tape and tie wraps Connect the appropriate leads from the speed control to the motor Make sure the leads will not interfere with the operation of the motor Install the spinner backplate propeller and spinne...

Page 13: ... 4 Use dental floss to secure the connection so they cannot become unplugged 6 Apply 1 2 drops of thin C A to each of the mounting tabs Allow the C A to cure without using accelerator 7 A string has been provided in the wing to pull the aileron lead through to the wing root Remove the string from the wing at the servo location and use the tape to attach it to the servo extension lead Pull the lead...

Page 14: ...0mm 100mm Aileron AILERON PUSHROD HORN INSTALLATION INSTALLING LANDING GEAR 1 Locate items necessary to install Spring Landing Gear 2 Ínstall Spring Landing Gear into Wings 9 Set the aileron hatch in place and use a Phillips screw driver to install it with four wood screws M2x10mm ...

Page 15: ...15 www seagullmodels com Epoxy Epoxy 3 Install Fiberglass Wheel Pants into Wings 2mm M3x15mm Drill 2mm ...

Page 16: ...ABILIZER 1 Using a ruler and a pen locate the centerline of the horizontal stabilizer at the trail ing edge and place a mark Use a triangle and extend this mark from back to front across the top of the stabilizer Also extend this mark down the back of the trailing edge of the stabilizer Drill 4 2mm ...

Page 17: ...s a guide carefully remove the covering from between them using a model ing knife 6 Using a modeling knife carefully re move the covering that overlaps the stabilizer mounting platform sides in the fuselage Re move the covering from both the top and the bottom of the platform sides 4 With the stabilizer held firmly in place use a pen and draw lines onto the stabilizer where it and the fuselage sid...

Page 18: ...d realign Double check all of your measure ments once more before the epoxy cures Hold the stabilizer in place with T pins or masking tape and remove any excess epoxy using a paper towel and rubbing alcohol Allow the ep oxy to fully cure before proceeding INSTALLING VERITICAL FIN 1 Using a modeling knife remove the covering from over the precut hinge slot cut into the lower rear portion of the fus...

Page 19: ...seagullmodels com MOUNTING THE TAIL WHEEL 1 Locate the items for this section of the manual M3x12mm HINGING THE RUDDER Glue the rudder hinges in place using the same techniques used to hinge the ailerons Epoxy ...

Page 20: ...evator control rod Thread the horns on until they are flush with the ends of the con trol rods ELEVATOR PUSHROD HORN INSTALLATION 1 Install the elevator control horn using the same method as with the aileron control horns 2 Position the elevator control horn on the both side of elevator Rudder control horn Elevator control horn C A glue C A glue Elevator control horn Plastic part M2 lock nut M2 cl...

Page 21: ...s com Control horn Elevator pushrod RUDDER PUSHROD HORN INSTALLATION M2 lock nut M2 clevis 580mm 620mm Control horn Elevator pushrod Rudder pushrod A Elevator pushrod A C A glue Rudder pushrod A C A glue Elevator pushrod ...

Page 22: ... canopy and onto the fuselage using a felt tipped pen APPLY THE DECALS 1 If all the decals are precut and ready to stick Please be certain the model is clean and free from oily fingerprints and dust Position decal on the model where desired using the photos on the box and aid in their location C A glue C A glue If you are going to install a pilot figure please use a sanding bar to sand the base of...

Page 23: ... your airplane be balanced correctly Improper balance will cause your plane to lose control and crash THE CENTER OF GRAVITY IS LOCATED 67 MM BACK FROM THE LEADING EDGE OF THE WING AT THE WING ROOT 2 Mount the wing to the fuselage Using a couple of pieces of masking tape place them on the top side of the wing 67 mm back from the leading edge of the wing at the wing root 3 Turn the airplane upside d...

Page 24: ...iment by shifting the balance up to 10mm forward or back to change the flying characteristics Moving the balance forward may improve the smoothness and arrow like tracking but it may then require more speed for take off and make it more difficult to slow down for landing Moving the balance aft makes the model more agile with a lighter and snappier feel In any case please start at the location we r...

Page 25: ...aileron on the right wing half Move the aileron stick to the right The right aileron should move up and the other aileron should move down If it does not flip the servo reversing switch on your transmitter to change the direction PREFLIGHT CHECK 1 Completely charge your transmitter and receiver batteries before your first day of flying FLIGHT PREPARATION A Check the operation and direction of the ...