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Cobra Helicopter Goblin 500 Manual

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Summary of Contents for Cobra Helicopter Goblin 500

  • Page 2 Goblin 500 Manual Release 1.0 - February 2013 SAB HELI DIVISION S.R.L. Via San Crispino, 47 47030 San Mauro Pascoli (FC) - ITALY Copyright@2013 - SAB Heli Division - All rights reserved...

  • Page 3: Specifications

    Chapter 1, Serial Number The Goblin is a high performance radio controlled helicopter. The design is original, moving away from traditional schemes, searching rationality for simplicity. Our goal was to create a simple, high performance helicopter, with a minimum of mechanical components, and simple maintenance.
  • Page 4 Chapter 2, Important Notes IMPORTANT NOTES *This radio controlled helicopter is not a toy. *This radio controlled helicopter can be very dangerous. *This radio controlled helicopter is a technically complex device which has to be built and handled very carefully. *This radio controlled helicopter must be built following these instructions.
  • Page 5 Chapter 3, In The Box ADDITIONAL COMPONENTS REQUIRED TOOLS, LUBRICANTS, ADHESIVES *Electric Motor: 6S – 900 / 1400Kv *Generic pliers maximum diameter 52mm, *Hexagonal driver, size 1.5, 2, 2.5, 3,4 mm maximum height 53mm, pinion shaft diameter 5 - 6mm *4mm T-Wrench *Speed controller: *5.5mm Socket wrench (for M3 nuts)
  • Page 6 Chapter 4, Carbon Frame The manufacturing process of the carbon parts often leaves micro-burrs and sharp edges. We 4-Carbon Frame recommend de-burring the edges to minimize the risks of electrical wire cuts, etc. Page 4 Copyright@2013 - SAB Heli Division - All rights reserved...
  • Page 7 Chapter 4, Carbon Frame Main Frame Assembly NOTE: We recommend drilling 4 holes (approximately 2.5 - 3 mm) to facilitate the installation of the ESC ( See page 20 ). Battery Block (H0256-S) Main Frame (H0240-S) Button Head Cap Screw M2x5mm (HC005-S) Detail A...
  • Page 8 Chapter 4, Carbon Frame Seft Tapping Hex Socket Screw M3x10mm Finishing Washer M3 (HC136-S) (H0007-S) CF Red Landing Gear (H0285-S) Seft Tapping Hex Socket CF Yellow Landing Gear (H0241-S) Screw M3x10mm (HC136-S) Landing Gear Support Finishing Washer M3 (H0262-S) ..x2 Seft Tapping Hex Socket Screw M3x10mm ..x2...
  • Page 9 Chapter 5, Transmission Assembly 5-Transmission Assembly Page 7 Copyright@2013 - SAB Heli Division - All rights reserved...
  • Page 10 Chapter 5, Transmission Assembly Column 18T Pinion (H0263-S) (H0210-S) Bearing 16x5mm (HC419-S) Socket Head Cap Screw M2.5x15mm (HC028-S) Metric Hex Nylon Nut M2.5H3.5 Bearing 19x5mm Secondary Shaft (HC200-S) (HC422-S) (H0221-S) Main Shaft (H0222-S) Main Structure 62T Main Gear (H0212-S) (H0209-S) Socket Head Cap Screw Shouldered M3x22mm Metric Hex Nylon...
  • Page 11 Chapter 5, Transmission Assembly 48T Pulley Assembly Flanged Bearing 12x3.5mm (HC418-S) Swashplate Anti-Rotation Guide (H0244-S) One Way Bearing 12x12mm (HC440-S) 48T Pulley (H0214-S) Socket Head Cap Screw M2.5x8mm (HC020-S) Finishing C Washer M2.5 (H0255-S) Sensor Support (H0224-S) Metric Hex Nylon Nut M8 H6.5 (HC224-S) 48T Pulley...
  • Page 12 Chapter 5, Motor Assembly Bushing 6x18mm (H0266-S) (Needed with 5 mm motor shaft) Metric Hex Nylon Nut M4H5 (HC212-S) Set Screw M4x4mm 18T Pulley Washer 4.3x 11x1mm (HC152-S) (H0215-18-S) (HC184-S) (See page 19 for additional pulleys available) Spring de 5 / df 0.3 / LL6 (HC316-S) Flat Head Cap Screw M3x5mm...
  • Page 13 Chapter 6, Head 6-Main Rotor Copyright@2013 - SAB Heli Division - All rights reserved Page 11...
  • Page 14 Chapter 6, Head Radius Arm ... x 2 Center Hub Assembly Uniball Radius Arm ... x 2 Assembly Assembly Oring Spacer Arm Radius Arm (HC330-S) 2.5x4x6.3mm (H0204-S) (H0253) Spindle (H0213-S) Spacer Arm 3x5x2.7mm (H0134) Flanged Bearing Center Hub 2.5x 6x2.5mm (H0206-S) (HC400-S) Flanged Bearing...
  • Page 16 Chapter 7, Tail Tail Rotor Hub Assembly Tail Pitch Slider Assembly Tail Pitch Slider 02 (H0233-S) Tail Pitch Slider 01 Oring (H0233-S) (HC334-S) Spindle Shaft (H0220-S) Tail Shaft (H0227-S) Flanged Bearing 11x3mm (HC416-S) Tail Pitch Slider 03 (H0233-S) Socket Head Cap Screw M3x6mm Note: (HC044-S) It is a normal for the tail to feel a bit tight after initial...
  • Page 17 Chapter 7, Tail Tail Side Plate Assembly Bell Crank Lever Assembly Bell Crank Support (H0229-S) Tail Side Plate (H0243-S) Flanged Bearing 2.5x 6x2.5mm Tail Case Spacer (HC400-S) (H0216-S) Tail Pin (H0264-S) Spacer Arm 2.5x 4x6.3mm (H0253-S) Bell Crank Lever (H0234-S) Socket Head Cap Screw M2.5x6mm Uniball...
  • Page 18 Chapter 8, Installation Of Tail Servo 15-17mm The distance between the center of the horn and the ball should be between 15-17 mm. Tail Servo Assembly Uniball M2 Tail Servo (H0064-S) Servo Spacer (H0075-S) Socket Head Cap Socket Head Cap Screw M2.5x12mm Screw M2x6mm (HC026-S)
  • Page 19 Chapter 8, Servos Installation Of The Swashplate Servos The distance between the center of the horn and the ball should be between 16-18 mm (Figure 1). Select the carbon fiber servo mount that is suitable for the size of servos to be used (Figrure 2). 16-18mm H0245 H0246...

  • Page 20: Swashplate Assembly

    Chapter 9, Assembling The Modules Swashplate Assembly Uniball M3x4 5H18 (H063-S) Socket Head Cap Screw M2.5x12mm (HC026-S) Swashplate Metric Hex Nylon Assemly Nut M3 (H0201-S) (HC206-S) Socket Head Cap Screw M2.5x12mm Uniball M3x4 (HC026-S) Socket Head Cap Screw (H065-S) Shouldered M3x20mm (HC082-S) Swashplate Assemly...
  • Page 21 Chapter 10, Gear Ratios TRANSMISSION SETUP It is important to choose the right reduction ratio to maximize efficiency based on your required flight performance. The Goblin has many possible reduction ratios at your disposal. It is possible to optimize any moror and battery combination. It is recommended to use wiring and connector appropriate for the currents generated in a helicopter of this class.
  • Page 22 Chapter 11, Installation Of The ESC & BEC De-Burr The Side Frames We recommend de-burring the edges of the carbon parts in areas where electrial wires run. ESC Installation The electronic speed control (ESC) is intalled in the front part of the helicopter. If you have drilled the 4 holes (Fig 1) as suggested on page 5, you can easily fasten the ESC with cable ties as shown in figures 2 and 3.
  • Page 23 Chapter 12, Motor Belt Motor Belt Tension - Install the motor and pulley to the motor mount plate. - Place the motor assembly in position. - Compress the springs by pushing the motor towards the main shaft. - At max compression, tighten one of the slide screws temporarily. - Put the belt around the motor pulley first, then put it around the big pulley.
  • Page 24 Chapter 13, Installation of FBL System FBL System Installation We recommend the use of a one unit flybarless system, i.e. Mini vBar, Microbeast, etc. However, a two unit flybarless system can also be installed. For one unit systems, the unit is installed as shown in position 1 (Fig 1) Two unit systems can be installed as follows: control unit in position 1 and sensor in position 2 or vice-versa.

  • Page 25: Tail Boom Assembly

    Chapter 14, Boom Assembly Tail Boom Assembly Locking Element Tail Assembly ...x2 Locking Element Tail Metric Hex Nylon Nut M3 (H0249-S) Red/White Tail Boom ( H0276-S) (HC206-S) Yellow/Black Tail Boom (H0278-S) Note: Metric Hex Nylon Nut M3 ...x4 DETAIL A Double Sided Tape (HA022-S) Locking Element...
  • Page 26 Chapter 14, Boom Assembly Installation Of The Boom - Make sure the 4 2.5x8 screws that go in the rear section of the side frames (2 on each side) are not installed or tightened all the way. - Insert the boom in place helping enlarging the frame ( Fig 1,2 ). - Push the boom forward until the nylon bolts bottom out against the end of the slot on the boom.
  • Page 27 Chapter 15, Battery / Canopy Batteries The Goblin has a quick release battery tray system. The batteries must be installed onto the battery tray to take advantage of the quick release locking system. Install the battery to the battery tray using double sided tape and the long Velcro straps included. Make sure to find the right position of the battery to optimize the center of gravity.
  • Page 28 *The tail of the Goblin 500 is quite unique in the sense that the tail hub is dampened like the main rotor head. It is normal for the tail slider to be a bit tight in the very beginning as the tail spindle preload is usually a bit high when the helicopter is brand new.
  • Page 29 In Flight The Goblin 500 has been tested at head speeds as low as 1800 rpm and as high as 3000 rpm. However, due to the nature of the head and dampening system, the model could exhibit swaying phenomena at some lower head speeds between 1800 rpm and 2400 rpm.
  • Page 30 Chapter 18, Exploded view, Carbon Frame Main Frame Name Specification Quantity H0064 Uniball H0075 Servo Spacers Carbon Fiber H0239 Frames Spacer Aluminum H0240 Main Frame Carbon Fiber H0281 Red Landing Gear Carbon Fiber H0241 Yellow Landing Gear H0252 Battery Tray Carbon Fiber H0255 Finishing Washers...
  • Page 31 Chapter 18, Explode View, Transmission Assembly TRANSMISSION ASSEMBLY Name Specification Quantity H0207 Bearing Support H0208 Servo Support TRANSMISSION ASSEMBLY Name Specification Quantity H0209 Main Gear HC152 Cone Point Set Screws M4x4mm H0210 Pinion HC154 Cup Point Set Screws M4x15mm H0211 Motor Support HC164 Nylon Screw...
  • Page 32 Chapter 18, Exploded view, Head System Swashplate Set Swashplate Set - H0201 Servo Assembly 1, 2, 3 Head System Head System Name Specification Quantity Name Specification Quantity HC022 Socket Head Cap Screws M2.5 x 10mm H0031 Uniball Spacers 5 x 2mm HC026 Socket Head Cap Screws M2.5 x 12mm...
  • Page 33 Chapter 18, Exploded view, Tail System TAIL SYSTEM Name Specification Quantity H0007 Finishing Washer M3 Aluminum TAIL SYSTEM Name Specification Quantity H0062 Spacer 9 x 5mm H0064 Uniball H0275 White / Red Tail Boom Fiber Glass H0279 Uniball M3x4 H0276 White / Red Tail Boom Carbon Fiber H0066...
  • Page 34 Chapter 19 , Spare Parts SwashPlate Blade Grip Blade Grip Arm Radius Arm HPS [H0201-S] [H0202-S] [H0203-S] [H0204-S] - 2 x Radius Arm. - 2 x Spacer Arm 2.5x4x6.3mm. - 2 x Spacer Arm 2.5x4x3mm. - 1 x Swashplte Assembly. - 2 x Uniball Radius Arm.
  • Page 35 Chapter 19 , Spare Parts Spacer 26mm Canopy Positioner 28T Pulley Tail Spindle Secondary Shaft [H0216-S] [H0217-S] [H0218-S] [H0220-S] [H0221-S] - 1 x 28T Pulley. - 3 x Socket Head Cap Screw - 1 x Secondary Shaft. M2x8mm. - 1 x Tail Spindle. - 2 x Socket Head Cap ScrewM2.5x15mm.
  • Page 36 - 2 x Battery Tray. - 2 x Canopy Locking. - 2 x Double Side Tape. - 6 x Servo Block. - 2 x Straps Goblin 500 - 10 x Finishing Washer. Battery Block Battery Support DX Carbon Road Support...
  • Page 37 Chapter 19, Spare Parts [HC008-S] [HC014-S] [HC002-S] [HC004-S] [HC005-S] - 5 x Socket Head Cap Screws - 5 x Socket Head Cap Screws - 5 x Button Head Cap Screws - 5 x Socket Head Cap Screws - 5 x Socket Head Cap Screws M2x5mm.
  • Page 38 [HA021-S] [HA023-S] [HA904-S] - 1 x Plastic Wrench Nut - 1 x Canopy Mousse 80cm. - 5 x Canopy Grommets. - 3 x Straps Goblin 500. Manual Goblin 500 M8 & M6. [BW0500] [BW5080] - White Main Blades 500 - White Tail Blades 80...

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