minicopter Acrobat User manual

Rheinstahlring 47
34246 Vellmar
Fon: [phone] Fax: [phone]
www.minicopter.de
[email protected]
Germany
Date: 02/22/05
Version 4
Manual
Ord.-No. 3000

minicopter
Rheinstahlring 47
34246 Vellmar
Fon.: [phone]
Fax.: [phone]
e-mail: i[email protected]
www.minicopter.de
Congratulations on the purchase of your Acrobat -helicopter.
With this model you have a high power helicopter in your hands, which not only has a
very good power to weight ratio for extreme aerobatics but also has a relatively low
centre of gravity for good hovering. The Acrobat is manufactured to the highest
quality standards which means that you have purchased a helicopter with a long life
expectancy. So flying and servicing will give you a great deal of fun for a long time.
The manual contains many detailed graphics so that you should have no problems
when building the helicopter. Please take a little time to study the manual before
beginning. Then you get an overview of the building process.
The kit contains some hexagon wrenches. Additionally you need the following tools:
Tools:
Thin walled socket wrenches to fit 5,5 and 7 mm nuts.
Open wrench 4,5/5,5 mm
Hexagon wrenches for 2/2,5/3 mm bolts
Hexagon wrench 4 mm a.f. (2 required for the feathering spindle)
Sharp tongs with 45° cranked head
Phillips screwdriver small
Screwdriver flat
Screw lock Loctite 243 blue
Special Tools:
Special open wrench 5,5mm for restricted access to the nuts Ord.-No. 707
Ball joint tongs e.g. Robbe S 1360
Pitch gauge e.g. Robbe S1366
Paddle gauge e.g. Robbe S1368
Lubricants:
Axial bearings: normal machine lubricant (from tool suppliers)
Autorotation coupling: grease or synthetic motor oil
The gear wheels and the belt drives don’t use lubricant.
Recommended RC-equpiment:
Receiver: Dual conversion PCM-system
RC-battery: 4 cells Sanyo KR 1700AU or cells with similar capacity
Swash-plate servos: Futaba S9252, S9206, S9202 or similar
Throttle-Servo: Futaba S 9202 or similar
Governor (if needed): Futaba GV-1
Gyro: Futaba GY 401 with servo S9253/4 or GY 601 with servo S9251
If you have problems when building your model please contact us. We will help you!
And now: Much fun by building your Acrobat !

Safety rules:
Radio controlled helicopters are not toys. Incorrect use of such models can cause
accidents with severe injuries.
Therefore please bear the following rules in mind:
-Do not make running tests on your workbench or in your hobby room! High
risk of injury and of poisoning from exhaust fumes!
-For the first motor run remove the complete main rotor-head including all
rods and the tail-rotor blades. Make sure that nothing can come into contact
with the tail-rotor. Only when you are sure that the clutch is engaging
correctly should you re-fit these components.
-After starting the motor leave the danger areas of main-and tail-rotor as
soon as possible.
-If you don’t have experience with the handling of glow engines please
contact a modeller who does.
-In hovering flight please keep a distance of at least 5 metres from the
helicopter.
-Don’t fly near other people or animals and keep a security distance of at
least 20 metres.
-Don’t leave the secure area for autorotations if you tend to fly the tank to
empty, if you can’t autorotate set a timer on your transmitter.
-Always keep a check on the tank contents while flying. A 90 size engine has
a large fuel consumption and in extreme cases the tank can be empty in less
than 10 minutes.
-The Acrobat has an extreme power to weight ratio. This means an
experienced pilot can fly extreme manoeuvres with ease. But please always
maintain sufficient safety distance especially if you are in training.
Remember that even a small control error can very quickly lead to a very big
deviation from the intended (safe) flight line.
-Do not overstretch yourself in training and avoid too much pressure to
perform. Do your exercises with a systematic aim. A few well prepared
flights bring more progress than monotonous figure training.
Liability exclusion:
We can’t control correct assembly, adjustment, maintenance and usage.
So no safety guarantee is possible.
Vellmar, in november 2003


1
741
745
(4x)
(2x)
(2x)
187.5
55
94
(4x)
8
(4x)
26(4x)
(Bohren Ø1.8) L742
= use Loctite
L
manual


2
410
416
8
(2x)
(8x)
8 = locknut M3
14 = hexagon socket screw M3 x 8
(4x)
(5x)
14
26
420
L
26 = hexagon flat head screw M3 x 10
manual
= use Loctite
L


3
8(4x)
417
442
421 433
16
15(2x)
14
(3x)
L
16 = hexagon socket screw M3 x 12
15 = hexagon socket screw M3 x 10
14 = hexagon socket screw M3 x 8
8 = lock nut M3
= use Loctite
L
manual
Do not tighten Part.-No. 15 and 16 yet!


4a
8(8x)
410
14(8x)
15(2x)
16L
420
Do not tighten Part.No. 15 and 16 yet!
15 = hexagon socket screw M3 x 10
8 = lock nut M3
14 = hexagon socket screw M3 x 8
16 = hexagon socket screw M3 x 12
manual
= use Loctite
L


4b
(4x)
8
(4x) 450
(2x)OS (21Z) 418
WEBRA (20Z) 439
16
(4x)
2
(4x)
7
74
L
450 = hexagon socket screw M4 x 10
74 = joint bolt M2 x 4
2 = washer M3
7 = lock nut M2
8 = lock nut M3
16 = hexagon socket screw M3 x 12
= use Loctite
L
manual


5
358
38
69
423
747
751
748
752
488
72
746
446
manual


6
425
409
8
(4x)
(5x)
72
434
470
16
89
4(4x)
414
16 = hexagon socket screw M3 x 12
4 = washer M3 large
8 = lock nut M3
72 = ball bearing with flange F10x19x7
manual
First mount shaft in
gear block!


7a
19
76
448
429
428
63
51
18
449
430
411
427
385
469
8(2x)
(2x)
(4x)
(5x)
L
L
51
469 = hexagon socket screw M2.5 x 12
76 = joint bolt M3 x 4
63 = ball bearing with flange F3 x 8 x 4
18 = hexagon socket screw M3 x 20
41 = ball joint 2.5
8 = lock nut M3
19 = hexagon socket screw M3 x 25
51 = shim 3 x 6 x 1
manual
= use Loctite
L


7b
412
18
17
63
430
51
76
449
8
(2x)
(2x)
462
716
472 L
L
14(2x) L
475
(6x)
441
Bearing may NOT run with the belt during normal usage!!
Distance between bearing and belt about 0.2-0.3mm!
fitted! Use shims 3x6x0.1 for the right distance to the belt!
Bearing carrier should be tightened up after the belt is
= use Loctite
L
76 = joint bolt M3 x 4
63 = ball bearing F3 x 8 x 4
14 = hexagon socket screw M3 x 8
18 = hexagon socket screw M3 x 20
8 = lock nut M3
17 = hexagon socket screw M3 x 16
51 = shim 3 x 6 x 1
manual


8
64 = ball bearing 3 x 10 x 4 = use Loctite
L
14
(4x)
419
424
432
L
19
51(3x)
(2x)
64
497
496
8
Fit the belt idling roller after fittimg
the belt (page14) and adjust so
manual
that it exerts only light pressure
(high rpm)!
51 = shim 3 x 6 x 1
19 = hexagon socket screw M3 x 8
14 = hexagon socket screw M3 x 8
8 = lock nut M3


9
489
426
(2x)
21(16x)
8(16x)
(2x)
499
467
No screw in this hole!
8 = lock nut M3
21 = hexagon socket screw M3 x 35
manual


8(4x)
10
436
(2x)
132
(2x)
15
(2x)
457
(2x)454
490
279
L
8 = lock nut M3
15 =hexagon socket screw M3 x 10
manual
= use Loctite
L
file fillet rectangular!
holes in frame a little bit.
threads holes in bearing plate, eventually file
check concentricity of holes in lower frame to
remove screws from bearing plate 421 and
After mounting of upper and lower frame


41
(4x) 11a
8
(4x)
(2x)
7
(2x)74
156
(2x)
(4x)
16
2(4x)
ca.77.5
8 = lock nut M3
16 = hexagon socket screw M3 x 12
7 = lock nut M2
2 = washer M3
41 = ball joint 2.5
manual
46 mm long


11b
ca 58.5
8(4x)
7(2x)
756
2(4x)
(2x)
524
(2x) 41(4x)
494(2x)
17
(2x)
8 = lock nut M3
16 = hexagon socket screw M3 x 12
7 = lock nut M2
2 = washer M3
41 = ball joint 2.5
manual
26 mm long


11c
ca. 57
2(4x)
(2x)
712
(4x)
7
756
8
(2x)
(4x)
494(2x)
524 41(4x)
(2x)
17
(2x)
8 = lock nut M3
16 = hexagon socket screw M3 x 12
7 = lock nut M2
2 = washer M3
41 = ball joint 2.5
manual
26 mm long


12a
2 1
:1 1 :
355
(2x)
1210
L86
356
L
359
76
(3x)
77
480(2x) L
FAI/3D-soft 3D-hard (US-style)
76 77
51(2x)
8
4
manual
= use Loctite
L
77 = joint bolt M 3 x 6
76 = joint bolt M 3 x 4
78 = joint bolt M 3 x 9
120°-mode (recommended) 140°-mode
51 = washer 3 x 6 x 1
Screw the jount balls 480
with care!


12b
41(4x)
ca. 59
(2x)
529
41 = ball joint 2.5
manual
links are in bag 11!
31 mm long