background image

-  Wingspan: 2,350 mm (92.52 in).
-  Length: 1,730 mm (68.11 in).      
-  Weight: 6 - 6.4 kg (13.2 - 14.1 lbs).
-  Wing area: 80.7 dm .
-  Wing loading: 74.35g/dm .
-  Wing type: Naca Airfoil.
-  Servo mount: 42mm x 21mm.
-  Gear type: Oleo struts for main gear 
   and spring wire for tail gear (included). 
-  Spinner: 80mm.

Parts listing required (not included):

-  Radio: 06 channels.
-  Servo: 08 standard high torque servos.
-  Engine: 120 - 2 stroke, 20 - 30cc Gas.
-  Motor: Brushless outrunner 1800-2300W, 450KV. 
-  Propeller: Suit with your engine.

Recommended motor and battery set up (not included): 

-  Motor:  Admiral GP20 6320-295kV
-  Lipo cell: 6-8 cell (1 x 6 or 2 x 4 cells), 4000-5000mah

 

 

-  ESC: 90-120A
-  Receiver battery: 6V/ 800 - 1200mAh (2 packs).

Made in Vietnam.

Instruction Manual Book

Item code: BH72

SPECIFICATION:

95% ALMOST READY TO FLY

OLEO STRUTS LANDING GEAR.

ALL BALSA - PLY WOOD CONSTRUCTION.
COVERED WITH ORACOVER

®

Summary of Contents for RYAN BH 72

Page 1: ...nnels Servo 08 standard high torque servos Engine 120 2 stroke 20 30cc Gas Motor Brushless outrunner 1800 2300W 450KV Propeller Suit with your engine Recommended motor and battery set up not included...

Page 2: ...ty precaution 3 Important bulding notes 3 Suggestion 3 Flight warnings 3 Covering tools 4 Adhesives and required tools 4 Academy of Model Aeronautics National Model Aircraft Safety Code 4 Parts listin...

Page 3: ...s Always wear safety goggles a particle mask and rubber gloves when grinding drilling and sanding fiberglass parts Vacuum the parts and the work area thoroughly after working with fiberglass parts IMP...

Page 4: ...ncluding fuel of 55 pounds unless in compliance with the AMA Large Model Airplane program AMA Document 520 A f Ensure the aircraft is identified with the RYAN and address or AMA number of the owner on...

Page 5: ...Documents 922 and 923 6 With the exception of events flown under official AMA Competition Regulations excluding takeoff and landing no powered model may be flown outdoors closer than 25 feet to any in...

Page 6: ...pencil to mark Wire cutters Hex Wrench Threadlocker screw cement Hand or electric drill cm 1 2 3 4 5 6 7 8 9 10 Straight edge ruler Some more tools Assorted drill bits Masking tape Paper towels Rubbin...

Page 7: ...15b Wood motor mount Wing struts set Decal sheet Spinner 9 10 11 12 13 13 14 14 15 16 17 18 19 1 2 3 4 5 7 7 6 8 1 3 2a 2b 4 5 6 7b 7a 7 6a 6b 12 RYAN STA N3772 N3772 N3772 N3772 N3772 2 3mm Wheel Col...

Page 8: ...y Apply pressure over sheeted areas to thoroughly bond the covering to the wood Flap Aileron 8 67mm Pinned hinge 10 44mm Pinned hinge Make certain the hinges are adequately secured with glue If they c...

Page 9: ...he thread as a guide and using masking tape tape the servo lead to the end of the thread carefully pull the thread out When you have pulled the servo lead out remove the masking tape and the servo lea...

Page 10: ...vos 2 Screw 1 5 mm 3x12mm Cap Screw 3x15mm Tp Screw 3mm Hex Nut 3mm Flat Screw Horn Horn 3x12mm Tp Screw 2 For Flap 3mm Hex Nut 3mm Flat Washer 3x12mm Cap Screw 2 For Flap 2mm Ball link Plastic 2 6x85...

Page 11: ...mm Flat Washer 3mm Hex Nut 2 Aileron 2 6x90mm Cut off shaded portion carefully Assemble left and right sides the same way Pay close attention here Drill holes using the stated in this case 1 5mm 1 5mm...

Page 12: ...12mm Cap Screw Aileron 3x15mm Tp Screw Aileron Aileron Aileron Aileron Flap Flap Flap Assemble left and right sides the same way C A Apply instant glue C A glue super glue C A Cut off shaded portion c...

Page 13: ...INSTALLING THE MAIN LANDING GEAR 4mm Spring Washer 4mm Flat Washer 4x20mm Cap Screw Bottom view Bottom view B A Apply epoxy glue B A Assemble left and right sides the same way L R L R L R 13 4mm Sprin...

Page 14: ...ruction manual RYAN Item code BH72 3x10mm 3x10mm 3x15mm 3x15mm L R L R Bottom view Bottom view 2 5mm 2 5mm 2 5mm 14 Drill holes using the stated in this case 2 5mm 2 5mm Assemble left and right sides...

Page 15: ...Instruction manual RYAN Item code BH72 Bottom view Bottom view 15...

Page 16: ...rim the tray if necessary to fit your servos 2 Mount the servo to the tray using the mounting screws provided with your radio system Throttle servo Elevator servo Elevator servo Rudder servo o 90 o 90...

Page 17: ...ilizer mounting platform sides in the fuselage Insert the stabilizer in place and re align Double check all of your measurements one more time before the epoxy cures Remove any excess epoxy using a pa...

Page 18: ...Instruction manual RYAN Item code BH72 Top side B A Apply epoxy glue Cut off shaded portion carefully B A C A Apply instant glue C A glue super glue C A 18...

Page 19: ...Instruction manual RYAN Item code BH72 Top side RUDDER INSTALLATION 5 67mm Pinned Hinge Pinned Hinge Cut off shaded portion Apply epoxy glue 19...

Page 20: ...lat Washer INSTALLING THE RUDDER LINKAGES BOTTOM VIEW 2 6 x 965mm Push rod 3mm Hex Nut Horn 1 3x12mm Cap Screw 2 2 3x15mm Tp Screw 3x12mm Cap Screw Horn 3x15mm Tp Screw 2 5mm Aluminum ball Cut off sha...

Page 21: ...installing the aileron linkages 2 6 x 965mm Push rod 2 2 Aluminium ball 4 2 4 3mm Flat Washer 3mm Hex Nut Horn 3x12mm Cap Screw 4 4 3x15mm Tp Screw Top side 3mm Hex Nut 3x12mm Screw Servo arm 3mm Flat...

Page 22: ...72 Assemble left and right sides the same way BOTTOM VIEW Cut off shaded portion carefully The number of times the same way Assembly in this case twice 2 2 2 2 3x15mm Tp Screw Horn 3x12mm Cap Screw Al...

Page 23: ...2mm Screw Servo arm 3mm Flat washer Ball link Push rod Elevator Servo Elevator Servo Elevator Pushrod Elevator Pushrod INSTALLING THE TAIL GEAR 3mm Collar 3x12mm Tp Screw 3mm Collar Setscrew 2 2 2 23...

Page 24: ...nual RYAN Item code BH72 Bottom view B A Bottom view Mark Bottom view 3x12mm Tp Screw Bottom view 2 5mm B A Apply epoxy glue Cut off shaded portion carefully 24 Drill holes using the stated in this ca...

Page 25: ...es onto the fire wall for installing the engine mount for SIZE 120 or DLE 20CC O S 22CC INSTALLING THE ENGINE OR May be you also need to trim some wood from the tri angle wood for the installation is...

Page 26: ...Pushrodchoke Pushrodgas Pushrodchoke Pushrodgas Top side Top side 4mm Spring Washer 4 4x25mm Cap Screw 8 4mm Hex Nut Size 120 500mm Pushrod wire 1 4 4mm Flat washer 8 4 M4 Blind Nut 4x25mm Cap Screw 4...

Page 27: ...Instruction manual RYAN Item code BH72 Top side 4x25mm Cap Screw 4mm Flat Washer 4mm Hex Nut Top side 145mm 27 Apply threadlocker screw cement...

Page 28: ...Item code BH72 Rubber Rubber Aluminium Aluminium 30mm Screw INSTALLING THE STOPPER Cut off shaded portion Bend 400 degree Bend 400 degree 40 degree bend 400 400 9mm 12mm 6mm Inflame Do not overheat i...

Page 29: ...fe If flashing is present make sure none of it falls into the tank 5 When satisfied with the alignment of the stopper assembly tighten the 3mm x 20mm machine screw until the rubber stopper expands and...

Page 30: ...pushrod wire using wire cutters and install the servo arm retaining screw 1 Install one adjustable metal connector through the third hole out from the center of one servo arm enlarge the hole in the s...

Page 31: ...ned so the crankshaft is in the middle of the precut opening Hold the cowl firmly in place using several pieces of masking tape 4 While holding the cowl firmly in position drill four 1 6mm pilot holes...

Page 32: ...Instruction manual RYAN Item code BH72 3 mm 2m m 3x12mm Tp Screw C A 3x12mm Tp Screw C A 2m m Top side Top side 32...

Page 33: ...4mm Flat Washer 8 4mm Spring Washer 8 4 4x70mm Socket Head Cap Screw 4 4x30mm Socket Head 4x30mm Socket Head Cap Screw 4x70mm Socket Head Cap Screw Electronic Speed Controller Cap Screw 4 10x50mm 10x...

Page 34: ...ubber band or masking tape to hold the foam in place Do not permanently secure the receiver and battery until after balancing the model 1 The switch should be mounted on the fuselage side opposite the...

Page 35: ...ING THE WING FUSELAGE Top side Aluminium tube 25 25mm 797mm Test fit the aluminium tube dihedral brace into each wing haft The brace should slide in easily If not use 220 grit sand around the edges an...

Page 36: ...G STRUTS SET Top side The wings must be inserted and attached completely before fixing with crew Plastic 142mm Aluminium Wing Strut Set 8 4 2 4 4 Ball Link Machined StrutAttachment 4x12mm 4 4 3x6mm Bu...

Page 37: ...struction manual RYAN Item code BH72 7mm 7mm 2 6mm 2 6mm Drill holes using the stated in this case 2 6mm 2 6mm L R B A Apply epoxy glue B A B A 37 3x6mm Button Head Cap Screw 3x6mm Button Head Cap Scr...

Page 38: ...he rear frame on the canopy is aligned with the rear edge of the cockpit opening Use canopy glue to secure the canopy to cannopy hatch Use canopy low tack tape to hold the canopy in position until the...

Page 39: ...Instruction manual RYAN Item code BH72 Top side Top side Top side Adhesive tape B B Apply epoxy glue Adhesive tape B 39...

Page 40: ...Instruction manual RYAN Item code BH72 INSTALLING THE PROPELER SPINNER 3x12mm TP Screw 3x12mm TP Screw 4 Use the spacer suitable Fully tighten Must be purchased separately 40...

Page 41: ...ck to be sure the control surfaces move in the correct directions Low rate Ailerons 12 mm up 12 mm down Flap 25 mm down Elevator 10 mm up 10 mm down Rudder 30 mm right 30 mm left Hight rate Ailerons 1...

Page 42: ...r more information refer to radio system instruction manual Follow instruction manual of Engine and Battery Engine Throttle Servo Receiver Battery Receiver Switch Aileron Aileron Servo Elevator Ailero...

Page 43: ...Instruction manual RYAN Item code BH72 TAIL GEAR DIMENSIONAL DETAIL 77mm 67mm 35mm 2 5mm MAIN GEAR DIMENSIONAL DETAIL 243mm 115mm 46mm 60mm 60mm 21mm 53mm 28mm 1 5mm 1 5mm 11mm 43...

Page 44: ...3 Ferrari Red 21 010 White 21 011 Grey 21 071 Black Oraccover 1 2 RYAN STA N 3772 3 4 N3772 14 11 6 8 10 RYAN STA N 3772 N 37 72 N 37 72 N3772 N3772 1 5 6 7 8 2 3 9 10 11 12 13 14 4 N3772 13 9 12 7 5...

Page 45: ...mm Cap Screw 3x15mm Tp Screw 3mm Hex Nut 3x12mm Cap Screw 3x12mm Cap Screw 3x15mm Tp Screw 3mm Hex Nut Plastic 3x12mm Cap Screw 3x12mm Cap Screw 3x15mm Tp Screw Plastic 3mm Hex Nut 3x12mm Cap Screw 3x...

Page 46: ...eep all onlookers especially small children and animals well back from the area of operation This isa flying aircraft which will cause serious injury in case of impact with aperson or animal NEVER fly...

Page 47: ...s have adequate power When ready to fly first extend the transmitter aerial Switch on the transmitter OFF ON OFF ON Check that the wings are correctly fitted to the fuselage Switch on the receiver OFF...

Reviews: