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Viper Jet MKII Composite
Viper Jet MKII Composite
Specifications
Material:
Length:
Wing Span:
Wing Area:
All Up Weight:
Wing Loading:
EDF:
Recommended Motor:
Recommended ESC:
Recommended Battery:
Radio System:
The World's Finest Electric Aircraft
Assembly Manual
Assembly Manual
Composite Fuselage, Balsa Wings
39.9 in
40.2 in
1.91 ft²
54 - 65 oz
28 - 34 oz/ft²
70mm with 5 Blade Fan
2842MB1 @ 3200KV (1100W)
80A+
LiPo, 4s 3300 - 3700 mAh
5 - 6 Channel (optional retracts)
www.SapacAmerica.com
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Table of Contents
Related Manuals for Sapac Viper Jet MKII Composite
Summary of Contents for Sapac Viper Jet MKII Composite
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Page 1: Specifications
Viper Jet MKII Composite Viper Jet MKII Composite Assembly Manual Assembly Manual Specifications Material: Composite Fuselage, Balsa Wings Length: 39.9 in Wing Span: 40.2 in Wing Area: 1.91 ft² All Up Weight: 54 - 65 oz Wing Loading: 28 - 34 oz/ft²... - Page 2 IN ANY WAY CONNECTED WITH THE PRODUCT, WHETHER SUCH CLAIM IS BASED IN CONTRACT, WARRANTY, NEGLIGENCE, OR STRICT LIABILITY. Further, in no event shall the liability of Sapac exceed the individual price of the Product on which liability is asserted. As Sapac has no control over use, setup, final assembly, modification or misuse, no liability shall be assumed nor accepted for any resulting damage or injury.
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Page 3: Table Of Contents
Connect Remaining Air Lines and Test Retract Operation ............27 Rudder and Elevators .................... 28 Attach Control Horns ......................28 Hinge Rudder and Elevators ....................29 Wing and Elevator Attachment ................30 Bond Horizontal Stabilizers ....................30 Viper Jet MKII Composite... - Page 4 Before You Fly ...................... 50 Set Up Center of Gravity and Verify Control Throws and Directions ......... 50 Check Power System ......................50 Range Check Your Radio ..................... 51 Flying Characteristics ......................51 Parts Cross Reference ................... 52 Viper Jet MKII Composite...
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Page 5: What's In The Box
Mounting Tubes o o o o E – Stabilizers (Elevators) o o o o H4 – Control Horns & Control Rods o o o o R – Rudder o o o o C – Cockpit & Canopy Viper Jet MKII Composite... -
Page 6: Main Hardware Bag Contents [H1]
– Wing Servo Hardware o o o o M2 – EDF Unit Shroud o o o o H5 – Spare Hinges o o o o D – Decals o o o o T – Wheels & Tires Viper Jet MKII Composite... -
Page 7: Additional Required Components
Building supplies and tools (as noted in individual assembly steps). ® ® ® ® Battery Eliminator Circuit (BEC) (optional). ® ® ® ® Retractable Landing Gear (optional). ® ® ® ® Control Rod connectors such as Linkage Stoppers or E/Z connectors (optional). Viper Jet MKII Composite... -
Page 8: Available Optional Components
Viper Jet and will fit the mounting areas perfectly. With torques and speeds in the highest ranges for their class these are the best option for your SAPAC model. [MS-A65 P/N MPOMSA65] [MS-D65M P/N MPOMSD65M]. -
Page 9: Wing Control Surfaces
} } } } Tip: the hinges can be held in position with T- pins if they shift when inserting the control surface. Remember to remove the T-pins before bonding the hinges. Viper Jet MKII Composite... -
Page 10: Prepare Servo Slots And Servo Covers
Remove covering from servo arm slots } } } } Using a hand drill with a bit slightly larger in diameter than the mounting screws, drill holes in the corners of all the servo covers (marked by a laser dot). Viper Jet MKII Composite... -
Page 11: Mount Aileron And Flap Servos To Servo Covers
Test and center your servos Drill pilot holes in servo mounting posts Viper Jet MKII Composite... -
Page 12: Attach Control Horns
Dry fit the control horns } } } } Once you have a good fit bond the control horns to the control surfaces using epoxy adhesive. Viper Jet MKII Composite... -
Page 13: Make Control Rods And Mount Servos
Remove the aileron servo cover, thread the control rod through the control horn and the servo arm and re-mount the flap servo cover with all four screws. Feed the servo wire through the channel provided in the wing. Viper Jet MKII Composite... -
Page 14: Main Gear, Fixed (Optional)
Cut away covering } } } } Use one of the main gear covers to mark the additional area on the wing you will need to trim for a proper fit. Viper Jet MKII Composite... -
Page 15: Prepare Gear Mount Covers
Make any necessary adjustments to the opening. } } } } Remove the gear mounts; you will drill them for mounting screws in the next step. Drill pilot holes through gear cover into gear mount Viper Jet MKII Composite... -
Page 16: Bond Main Gear
Reassemble and dry fit in the wing, check for and fix any clearance issues. Gear mount bonded in position } } } } Before the epoxy dries test fit the main gear covers to ensure there are no clearance issues; if necessary make adjustments. Viper Jet MKII Composite... -
Page 17: Main Gear Final Assembly
Completed main gear assembly } } } } Mount the tires to the main gear struts using the supplied collets. Use thread locking compound on the set screws in the wheel collets. Viper Jet MKII Composite... -
Page 18: Main Gear, Retractable (Optional)
Locate the cutout for the retractable landing gear } } } } Use an erasable pen to trace around the template defining the location of your cutout. Viper Jet MKII Composite... -
Page 19: Mount Gear And Connect Air Lines
} } } } This is a good time to test the retract units; you the fuselage. Attach them to the retract units. can do this by temporarily attaching your retract pump to the retract unit airline. Viper Jet MKII Composite... -
Page 20: Retractable Landing Gear Final Assembly
Test the retract motion and make any adjustments to ensure smooth operation. You may have to trim the landing gear opening to match your strut. Bend and test the struts and trim the opening Viper Jet MKII Composite... -
Page 21: Nose Gear, Fixed (Optional)
Note: The servo mount goes on the opposite are shown in their assembly orientation; the side of the strut mount. curved corners face the servo side of the mount Strut mount components Servo mount components Viper Jet MKII Composite... -
Page 22: Mount Servo And Steering Arm
Steering servo mounted in position } } } } It will be easier to assemble the steering arm before it is installed in the steering arm box. Slip a collet over the short strut element. Viper Jet MKII Composite... -
Page 23: Installation Of Nose Gear Mount And Nose Gear
} } } } Test the assembly before installation to ensure specifically to receive it. there are no problems with the steering motion. If there is any space between the nose gear Viper Jet MKII Composite... - Page 24 Complete the assembly by attaching the long section of the strut to the long collet and attaching the nose wheel to the strut using the last collet. Use thread locking compound to ensure the collets does not come loose. Viper Jet MKII Composite...
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Page 25: Nose Gear, Retractable (Optional)
This will make the lines more visible and the cut easier. Nose wheel cutout complete } } } } Once the opening has been cut clean up any edges and corners using needle files. Viper Jet MKII Composite... -
Page 26: Mount Servo And Nose Gear Retract Unit
Mount the servo in the final location using the screws supplied with the servo. Servo and retract unit mounted and air line connected } } } } Dry fit the nose wheel retractable landing gear unit in the location provided (as shown in the Viper Jet MKII Composite... -
Page 27: Mount Strut And Test Retract Motion
2.- Feed the cable through the arm. 3.- Feed the cable back through the crimp. 4.- Loop the cable around and feed it back through the crimp sleeve in the same direction (see image for detail). Viper Jet MKII Composite... - Page 28 When you are happy with the position of the nose wheel attach the set screw with thread locking compound to ensure it doesn’t vibrate loose. Viper Jet MKII Composite...
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Page 29: Air Retract Mechanism (Optional)
} } } } The following image shows an example of the air line connections for a retract installation in the Viper Jet. Actuator valve with air lines; blue for gear and red for tank and fill valve Viper Jet MKII Composite... -
Page 30: Mount Air Tank
If you would like to the servo using the screw supplied with the to do this just plan your air line runs servo. accordingly. Viper Jet MKII Composite... -
Page 31: Connect Remaining Air Lines And Test Retract Operation
This will allow you to connect the air lines for the main } } } } In case of air system failure the SAPAC gear and test the retract motion. retractable landing gear will automatically... -
Page 32: Rudder And Elevators
Separate rudder from vertical stabilizer and remove the covering from the control horn slot } } } } Dry fit the control horn in the slot, make any adjustments as necessary. Viper Jet MKII Composite... -
Page 33: Hinge Rudder And Elevators
CA adhesive on both sides of all hinges. Set aside to dry. } } } } Repeat the same steps for the other elevator and for the rudder. Viper Jet MKII Composite... -
Page 34: Wing And Elevator Attachment
Dry fit the horizontal stabilizer assembly (the longer tube goes aft). If the stabilizers don’t seat properly, trim the tubes slightly until the desired fit is achieved. Apply adhesive to the fuselage and to the stabilizer tubes Stabilizer mounting tube locations Viper Jet MKII Composite... - Page 35 Ensure the horizontal stabilizers are parallel and level in all directions. Tape the stabilizers in place while the adhesive dries ensuring the alignment is still true after taping. Slide the horizontal stabilizer into position Horizontal Stabilizers held in place while adhesive dries Viper Jet MKII Composite...
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Page 36: Bond Wings
Use the wing for reference to determine where to cut the hole. Bond the wing with epoxy adhesive Apply adhesive to the fuselage and wing tube If you are using retracts, cut openings for gear clearance Viper Jet MKII Composite... - Page 37 Main Gear, Retractable (Optional) Slide the wing into position ensuring the servo Air Retract Mechanism (Optional) wires and air lines are routed properly Viper Jet MKII Composite...
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Page 38: Fan And Thrust Duct Installation
CA adhesive; press on the edge to keep it down. Bond the tabs to the duct using Completed thrust duct the same process. Work your way down the entire length of the thrust duct. Viper Jet MKII Composite... -
Page 39: Mount Fan Unit And Thrust Duct
If you Required Parts are using the SAPAC 70MM EDF unit the duct o o o o Fuselage [F] clearance is set at the factory. If you are using... - Page 40 } } } } Fit the thrust duct inside the fan shroud and place the unit back in its final position. It is important the EDF unit be pushed as far forward Bonding the fan shroud Viper Jet MKII Composite...
- Page 41 } } } } Tighten the zip ties around the fan unit by hand until they are snug. Don’t over-tighten the zip ties as this may deform the fan housing, potentially causing the fan blades to rub against Viper Jet MKII Composite...
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Page 42: Wire And Mount Esc And Attach Fan Access Hatch Cover
ESC. } } } } Trim the fan access hatch cover to size using the inscribed panel lines. Test fit the fan access hatch cover; make any necessary adjustments at this time. Viper Jet MKII Composite... -
Page 43: Radio Installation
The mounting process is the same for the other servos; pre-drill the mounting holes and reinforce them with thin CA adhesive before Elevator and rudder servos mounted in position mounting the servos with the screws supplied with the servos. Viper Jet MKII Composite... -
Page 44: Assemble Elevator And Rudder Control Rods
Completed servo installation Compress the spring to latch or un-latch the clips Viper Jet MKII Composite... -
Page 45: Mount Bec And/Or Receiver Battery
If you will be using a single radio channel for the flaps you will need a reversing Y-harness, a servo match box or one reversed servo. This will allow the servos to operate in opposite directions. Viper Jet MKII Composite... -
Page 46: Test Radio Installation And Set-Up Control Throws
Take-off Flap Control Throw: 20mm. } } } } Landing Flap Control Throw: 30mm. } } } } This is also a good time to test all other systems such as the retractable landing gear and the power system. Viper Jet MKII Composite... -
Page 47: Fins, Cockpit, Canopy And Decals
There are three types of fins for the Viper Jet } } } } The location and orientation of the fins is shown in the images below: Ventral fin locations Fuselage fin location Fin panel lines Viper Jet MKII Composite... -
Page 48: Install Pitot Tube
If you desire to do that, mount the tube supplied with the data collection system in the hole in the nose of the fuselage. Alternately you can connect the air pressure hose to the supplied Carbon Fiber tube. Bond the fins with 5-minute epoxy Viper Jet MKII Composite... -
Page 49: Install Main Cockpit
Trim the cockpit to the panel lines } } } } Lay the cockpit on the fuselage and make any adjustments to the cockpit until you get a good fit. Bond the front pin assembly to the cockpit Viper Jet MKII Composite... -
Page 50: Bond Main Canopy To Cockpit
Bond the canopy to the cockpit using canopy glue (or equivalent). Bond the canopy to the cockpit using canopy glue Viper Jet MKII Composite... -
Page 51: Install Front Cockpit And Canopy
Bond the front canopy assembly to the fuselage using canopy glue } } } } Test fit the full canopy to ensure there is no interference between the front canopy components and the main canopy components. Viper Jet MKII Composite... -
Page 52: Apply Decals
} } } } Remove the backing from the decal. Remove the backing from the decal } } } } Place the decal on the fuselage in the desired position. The decals are water-slide decals so if you like Viper Jet MKII Composite... - Page 53 Decal placed in position } } } } Remove the low tack tape. Remove tape } } } } The following image shows the decal positions for the Viper Jet. Decal locations Viper Jet MKII Composite...
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Page 54: Before You Fly
} } } } The minimum recommended battery for the behind the leading edge of the wing where it SAPAC Viper Jet Composite is a 4S 3300mAh meets the fuselage. Make sure your center of 25C LiPo Battery. You can get extended flight... -
Page 55: Range Check Your Radio
Practice as much as you can on a flight simulator before attempting to fly advanced aircraft. Congratulations, your SAPAC ViperJet MKII Composite build is now complete! We hope it gives you many hours of enjoyable flight. Viper Jet MKII Composite... -
Page 56: Parts Cross Reference
No Decals SAP12454 Optional 3200KV MB1 Motor and 70mm Fan Unit SAP30732 Optional Rz180 Retractable Landing Gear SAP14000 Optional Sz180-v Scale Struts SAP12601 Optional M-Power MS-A65 Analog Servo MPOMSA65 Optional M-Power MS-D65M Digital Metal Gear Servo MPOMSD65M Viper Jet MKII Composite... - Page 57 Safety, Precautions and Warnings As the user of this product, you are solely responsible for operating it in a • Never operate the model out into the street or populated areas for any manner that does not endanger yourself and others or result in damage to reason.
- Page 58 Please contact your local dealer for support Please contact your local dealer for support SAPAC America The World’s Finest Electric Aircraft 3071 NW 64 Ave. Sunrise, FL 33314 1.800.976.7004 www.SapacAmerica.com...