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SAB Heli Division Head HPS3 - H0489-K Goblin 500 Manual

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Swashplate
[H0475-S]
- 1 x Swashplate Assembly.
- 1 x Bearings 30x
37x4mm.
- 6 x Uniballs M3x4
5 H3.
- 1 x Uniball M3x4
5 H18.
- 7 x Socket Head Cap Screws M2x5mm.
- 3 x Swasher
2x
5x0.5mm
Radius Arm
[H0474-S]
- 1 x Center Hub.
- 1 x Socket Head Cap Screws
M3x12mm.
- 1 x Socket Head Cap Screw
Shouldered M3x20mm.
- 1 x Metric Hex Nylon Nut M3.
Center Hub
[H0473-S]
- 2 x Radius Arms.
- 2 x Spacer Arm
- 1 x Spacer Hex.
- 1 x Uniball Radius Arms.
- 2 x Socket Head Cap Screws M3x12mm.
- 2 x Socket Head Cap Screws M2.5x8mm.
- 2 x Flanged Bearings
2.5x
6x2.5mm.
- 4 x Flanged Bearings
3x
7x3mm.
Linkage
[H0237-S]
- 2 x Linkages M2.5x33mm.
- 4 x Plastic Ball Links.
Damper Derlin
[H0425-S]
- 2 x H0425.
- 2 x Orings.
- 4 x Steel Shims Ø8xØ14x0,2mm.
Recommendations
- These parts should be used only with models SAB Goblin
- Please follow all the instructions shown in the Goblin main manual. In this manual please read Chapther 2, Important notes
- Use Loctite on all threads.
- Put a small amount of grease inside the hub and the O-Ring.
- Check for axial play of the spindle at least after the first 10 flights and add shims if necessary.
- Firmly tighten the blades before flight.
About HPS
HPS stands for "High Precision System". This head has been
developed in order to increase the usable rotor RPM range without
having to change the rigidity of the dampening system.
The new head is developed specially to limit the teetering effect of
the spindle by means of dampening achieved by a special
technopolymer material.
The maximum teetering amount can be adjusted based on the
amount of play shown in figure "A" of the drawing. The O-ring is
necessary to create a radial and axial preload.
The preload can be kept relatively low, thanks to the mechanical
locking properties of the technopolymer dampeners.
With this solution, finding the correct preload is less complex.
This solution is safer because there is a physical "stop" of the
teetering effect with the technopolymer dampers, also with low
axial preload.
The change of preload will serve exclusively to customize the
response of the model.
Furthermore, the spindle can only move vertically thanks to the
elongated hole shown in section "B" of the drawing.
This solution allows an optimal control of the geometry even when
large amounts of torque are introduced into the system.
The head is very accurate and reliable.
Spare Parts
- 2 x Main Blade Grip.
- 2 x
Thrust Bearing
8x
14x4mm.
- 4 x
Bearing
8x
14x4mm.
- 2 x Washer
11x
13.8x0.5mm.
Blade Grip
[H0202-S]
- 2 x Blade Grip Arm.
- 2 x Socket Head Cap
Screw M3x8mm.
- 2 x Uniball M3.
Blade Grip Arm
[H0203-S]
Spindle Shaft
[H0471-S]
- 2 x Spindle Shaft.
- 2 x Pin 4mm.
- 4 x Socket Head Cap M2x5mm.
- 2 x Socket Head Cap
M6x10mm.
- 2 x Washer Ø8xØ10.2x0.5mm.
ABOUT HPS3
For safety reasons we suggest to not exceed.
2500 rpm Goblin 500
2400 rpm Goblin 570
In the KIT, you will find a bigger tail blades. This size is optimazed for
to counteract the additional torque in troduced by 3rd rotor blade.
TIPS:
Left Side
Right Side
* To remove the dampeners, you
can use a flathead screwdriver
through the hole as shown.
* Clock-wise, counter clock-wise thread
* By turning the linkages you can adjust
tracking.
SPARE PARTS
RECOMMENDATIONS
These parts should be used only with models SAB Goblin.
· Goblin 500 (recommended blades SAB 3BL465, max 500 mm)
· Goblin 570 (recommended blades SAB 3BL540, max 550 mm)
- 3 blades rotor head requires a much lower cyclic gain on
flybarless systems.
We recommend that you set your gain at least 30% lower than the gain
you normally use on your 2 blade rotor head helicopters.
You can start increasing the gain after you complete your first flight.
Running too high of a gain can induce a violent oscillation that can
potentially cause damage to your helicopter in flight.
- Please follow all the instructions shown in the Goblin main manual.
In this manual please read Chapter 2, Important notes
- Use Loctite on all threads.
- Put a small amount of grease inside the hub and the O-Ring.
- Check the spindle for axial play at least after the first few flights and add
shims as necessary, slight axial preload is optimal.The blade grips must
move freely, but they should not move just under their own weight.
- Firmly tighten the blades before flight.
Detail B
Goblin 500 = Tail Blade BW5095
Goblin 570 = Tail Blade BW5104
Page 2
HPS3 ROTOR HEAD
[
H0489-K Goblin 500, H0490-K Goblin 570
]
2


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