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STEP12
Steering Servo
1
1
2.6x10mm
F/H Self-Tapping Screw
1
2
6mm(S)
Ball Stud
2
3
2.6x6mm
F/H Self-Tapping Screw
1
4
4x10mm
Socket Hex Machins Screw
2
3X4mm
5
BT Philip Machine Screw
1
5.6X3mm
6
Arm Washer
STEP12
Motor Pinion Gear
Gear Ratio Formula
Spur Gear Teeth
(
Pinion Gear Teeth
Note to insert a washer into the gap to avoid breakage of
motor mount caused by overtighten screw.
Spur Gear
Pinion Gear
Final Gear Ratio
Max. Speed
Slow
Acceleration
Good
Running Tine
Long
Fits Chassis
Fits Upper Deck
Fits Motor MNT.
Adjust the gear ratio by changing pinion gears according to the size of the track and other conditions.
1. Sparrowhawk VX at present comes with 72T spur gear and 26T pinion gear.
Thunder Tiger also provides 19T/20T/21T/22T/23T/25T racing pinion gears as optional parts.
For other gear ratios, please find optional gears with standard 48pitch from the aftermarket parts.
1.
72T/26T
2. Replace standard parts with optional chassis, upper deck and motor mount when using 30T/32T/35T pinion gears.
2.
30T/32T/35T
Hint
Pay close attention here
2
Steering Servo Type
ACE R/C S1903/ S2008MG
ACE R/C DS1015/DS1313
Airtronics / Sanwa / JR / KO
Futaba
Hitec
)
X2.6154
:1
72(48 Pitch
)
19
20
21
22
23
25
9.91
9.42
8.97
8.56
8.19
7.53
STD.
STD.
STD.
19T/20T/21T/22T/23T/25T
48P
1
Servo Horn Mount
Marked "T" for Thunder Tiger stock servo. Find the
appropriate servo horn mount for your servo from the
T
chart below. Install the servo horn arm with the stock
T
mounting screw.See the graphic for the correct neutral
T
T
angle.
A
A
" "
T
T
H
H
5
69(48 Pitch
)
26
26
27
30
32
35
7.24
6.94
6.68
6.02
5.64
5.16
Fast
Bad
Short
OPT.
OPT.
OPT.
13
Marked "T"
"T"
Back
Neutral
90
90
5
3
4
3
6
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