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BVM PNP VIPER
1/9M
Length: 74" (1880mm), Wing Span: 73.7" (1872mm)
Weight: 22Lbs (10kg) Dry
Fuel Capacity: 2.5L
Smoke Capacity: .60L
CONSTRUCTION AND OPERATING MANUAL
Version 1.1
June 2017
Vne 175 MPH
Limit Thrust to 23Lbs
Equipped with HV Servos and should not be operated below 7.2 volts
3481 State Road 419 • Winter Springs, FL 32708 USA
tel. 407-327-6333 • fax. 407-327-5020
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Summary of Contents for BVM PNP VIPER
- Page 1 BVM PNP VIPER 1/9M Length: 74" (1880mm), Wing Span: 73.7" (1872mm) Weight: 22Lbs (10kg) Dry Fuel Capacity: 2.5L Smoke Capacity: .60L CONSTRUCTION AND OPERATING MANUAL Version 1.1 June 2017 Vne 175 MPH Limit Thrust to 23Lbs Equipped with HV Servos and should not be operated below 7.2 volts 3481 State Road 419 •...
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Page 2: Table Of Contents
NOTE FOR INTRODUCTION ....................3 INTRODUCTION ........................3 DISCLAIMER ........................... 3 Notice: ............................. 3 BVM Products ........................4 Recommended Accessories ....................4 Required Tools........................5 List of Adhesives/Lubricants/Heat Shield+ ................5 Available Options ......................... 5 ... - Page 3 First Flight Profile ........................28 Pilot’s Notes: ........................30 BVM®2017 06/20/2017...
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Page 4: Unpacking
INTRODUCTION Thank you for purchasing the BVM PNP Viper Jet. This model represents the latest in manufacturing technology and completion for the R/C jet enthusiast. The factory has expertly crafted and thoroughly inspected all aspects of the model. Only a small amount of work is required to complete the assembly of your Viper Jet. -
Page 5: Bvm Products
BVM Products Received with the Instruction Package that is sent from BVM Assembly and Operating Manual Package Recommended Accessories You may have some of these products in your shop, but if not, refer to this list. #2 x 7/16 SSSH (Servo Screws) -
Page 6: Required Tools
BVM Collar Tool (# PA-SR-0095) Slo-Zap (# PT20) Pacer Z-42 (#PT42) Super O-Lube (BVM #5779) BVM Thin Lube for “O” Rings (BVM # 1945) Axle Super Lube (BVM # 5784) BVM Dry Lube (BVM # 1947) BVM Collar Tool (# PA-SR-0095) -
Page 7: Wing And Main Gear
2.5mm Hex wrench to loosen the strut in the aluminum pivot block in the retract unit. Set the tow-in as desired then securely tighten the screw. Use a Dremel drum sander to enlarge the clearance in the strut well to accept the landing light. BVM®2017 06/20/2017... -
Page 8: Servicing And Lubricating The Main Gear Retract System Including Axle Bearings And "O"Ring Brakes
This is a convenience item. SERVICING AND LUBRICATING THE MAIN GEAR RETRACT SYSTEM INCLUDING AXLE BEARINGS AND "O"RING BRAKES. Remove the 6 Phillips Head wood screws that retain the retract unit and lift it out of the pocket. BVM®2017 06/20/2017... - Page 9 The metal-to-metal sliding and rotating parts can receive the perfect lubricant for ease of operation and long term use. Use a small brush to apply BVM "Dry Lube" #1947 to these parts. Use a 2.5mm Hex Wrench to remove the wheel, brake hub, and axle.
- Page 10 Inject a small amount of axle Super Lube (BVM#5784) into the wheel bushing and onto the axle. Note the thin Teflon washers and reinstall them as they were factory placed. Reassemble everything, making sure the clear brake tubing is on the aft side of strut.
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Page 11: Wing Servos
You can use a 2.0mm hex wrench to check the security of the nylon/aluminum ball/socket linkages. The nylon/aluminum ball/socket linkages can receive a bit of BVM Dry Lube (BVM #1947) applied to the mating parts. Do this for all similar linkages on the model. -
Page 12: Winglet Attachment
If the bolt does not easily thread into the peg, it may be necessary to sand away paint or a putty droplet to allow a perfect fit. Here a piece of #180 grit sandpaper is used. BVM®2017 06/20/2017... -
Page 13: Hatch Work
HATCH WORK Apply BVM Aeropoxy to the internal junction of the engine access hatch pins and the fiberglass flange. Accomplish the same for the pins at the forward end of the canopy hatch frame. To reduce any affect of residual heat... -
Page 14: Fin
The same tool can be used to open the hole in the plywood rib. This will help the fin attachment when stuffing the electrical connectors inside. As previously shown, apply BVM Dry Lube (BVM #1947) to the linkage ball/socket joints. Use a small countersink tool to chamfer the hole that receives the aft fin/stab mounting bolt. -
Page 15: Stabilizer And Elevators
Remove the 2 set screws in each elevator, apply a drop of Z-42 then insert and tighten in both elevators. NOTE: BVM checked the temperature inside the space between the servo mounting plate and outer tailpipe shield. It was accurately measured to be 10F above ambient with the engine running. -
Page 16: Stab And Fin Mounting
ENGINE INSTALLATION AND OPERATION The BVM Viper Jet was introduced to the market in June 2017. It is lighter in weight that earlier Jet Legend offerings and intended to be an easy to assemble, medium performance model with many small items such as access to components considered in the new product. -
Page 17: Center Of Gravity
Insert the 24mm diameter aluminum tube into the receiving fiber tube in the fuse. There should be about 7-1/8" extended outboard of each side of the fuse wing fairing. Use a black marking pen to identify the intersection with the fuse side. BVM®2017 06/20/2017... - Page 18 (2) forward and (2) aft. The bolts are 3mm X 13mm S.H.C.S. FLAPS - A plywood Flap Gauge is provided. Position it on top of the wing adjacent to the fuse joint. 30 Take Off Flaps BVM®2017 06/20/2017...
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Page 19: Nose Gear Access
Use a Dremel Drum Sander. To remove the nose gear first remove the (4) socket head bolts. Use a 2.5mm hex wrench. Then remove the (4) Phillips head wood screws. BVM®2017 06/20/2017... -
Page 20: Engine Mounting
The pneumatic and electrical will follow. Once they are disconnected the retract unit can be serviced or replaced. NOTE: Apply BVM Dry Lube (BVM#1947) to all mating parts before reinstalling the nose gear system. NOTE: Before removing the nose gear unit, check the routing of the pneumatic and electrical wires relative to the side of the fuse so they can be reinstalled as originally placed. -
Page 21: Smoke Tube Mounting
It is located below the engine. TAILPIPE AND ITS' INLET LIP The double walled stainless steel tailpipe comes installed. To gain access to the ventral fin mounting in the fuselage, remove the screws and pull the tailpipe forward and up. BVM®2017 06/20/2017... -
Page 22: Forward Battery Tray
Apply finish to both sides of the pump mount. NOTE: Sand top of plywood with #320 before and after applying finish. See also: Forward Battery Tray later in this manual. The parts in your model will be one or the other. BVM®2017 06/20/2017... -
Page 23: Optional Installation
Velcro. Apply matching Velcro to bottom of batteries. Receiver batteries shown here are Duralite EXB 3000mAh 7.4 Volts. BVM stocks these very reliable and safe batteries. Batteries shown attached to the tray. The battery on the right side must be close to fuse skin to allow nose gear steering servo to clear upon retraction. -
Page 24: Ecu And Smoke Pump Tray
Batteries shown installed and tray is secured with (2) #4 wood screws and washers. ECU AND SMOKE PUMP TRAY OPTIONAL INSTALLATION The pumps are held securely to the pump tray with 8" tie wraps. NOTE: The smoke tank is located below the engine. BVM®2017 06/20/2017... - Page 25 A 1" X 1" X 4.5" piece of dense packaging foam is placed on top of the receiver batteries about where it is shown here. Here it is shown tucked away. NOTE: For standard LiPo 4 cell batteries, this foam retainer will vary in dimensions. BVM®2017 06/20/2017...
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Page 26: Forward Fuselage Details
View of left side aft 1/3rd of forward fuse. See Header Tank with orange Velcro strap, fuel pump, fuel tubing, and fuel filter mounted vertical. View of right side. See Ultimate Air Trap, remote receivers, and fuel tubing. BVM®2017 06/20/2017... - Page 27 See receiver (12 channel), remote receiver, pneumatic solenoid valves. Label these valves "Brakes", "Gear Up", "Gear Down". View of forward section. See Velcro on plywood deck. NOTE: Apply a Zap or epoxy finish to the plywood before pressing Velcro into position. Batteries Installed BVM®2017 06/20/2017...
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Page 28: Control Travels
Crow Set-Up: Positioning the Ailerons (up) with landing Flaps down. This adds stall protection during the approach. NOTE: The BVM Demo plane is setup using the above Expo percentages. Positive values are used on Spektrum and JR radios, Futaba uses negative. -
Page 29: Dx18 And Dx18Qq Transmitter File
Flight Time – There is 9+ minutes of fuel on board. The BVM demo model’s transmitter timer was set for 7 min for a “Top Gun” routine. On the first flight, land a few minutes early to check fuel consumption. Adjust the flight timer accordingly. - Page 30 The use of the smoke pump will consume more mAh per flight. (2) 3000 mAh batteries are the minimum BVM recommends. BVM is synonymous with “Success Jets.” It is very important to us that you are successful with our products. This extensive manual reflects our sincerity. As always, your comments and suggestions on BVM products are appreciated.
- Page 31 Pilot’s Notes: BVM®2017 06/20/2017...
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