Compact on-board starter - RC Universe

1
High-quality accessories
for the ambitious
model maker
25 YEARS
· MODELLTECHNIK
www.fema-modelltechnik.de

2
General information
Contents:
3 Description on-board starters
4-5 Electric on-board starters for glow plug engines with single cylinder
6-7 Electric on-board starters for glow plug engines with 2-4 cylinders
8-13 <strong>Compact</strong> on-board starters for Titan/Zenoah engines
14 Accessories for on-board starters
15 Solid tires and axles
16 Balancing machines for propellers and rotor blades
17-20 Retractable undercarriages for big-scale models
Shipping
Shipping of all items in this catalog is subject to availability,
which may change without notice. We do not accept
any liability for printing errors.
Disclaimer
We do not compensate for liability loss and consequential
damages that arise from the operation of items from our
product range as a proper deployment or operation cannot
be monitored on our part.
www.fema-modelltechnik.de

Elektro-Bordanlasser
Electric on-board starter
With the FEMA on-board starting system a dream of
many innovative model makers has come true.
3
The on-board starting systems can basically be deployed
in two operation modes:
Functional description:
With the FEMA on-board starting systems all common
internal combustion engines can be started safely by
radio control on ground as well as in the air. For the universal
use there are two different variations of on-board
starting systems:
Universal on-board starting system
For this model, only the starting device is attached
directly to the internal combustion engine. The starter
engine is placed separately from the internal combustion
engine inside the fuselage (depending on balance point or
space requirements). The power from the starter engine
to the starting device at the internal combustion engine is
transmitted via a cardan shaft with variable length.
<strong>Compact</strong> on-board starting system
Starting of the internal combustion engine via the radio
control
With this operation mode, the internal combustion
engine can be started on the ground as well as in the air
via the radio control. In this case the NC-storage battery
is placed inside the model.
Safe starting of the internal combustion engine is only
possible on ground
This operating mode only requires the attachment of the
starting device and the starter engine inside the model.
The starter storage battery (glow plug engines additionally
require a plug heater) is placed in a starting box.
The on-board starter is manually switched on and off via
micro switches.
Control of electric on-board starting systems
The electric on-board starter is controlled via micro switches
operated from an IC-servo. For the secure starting
of the internal combustion engine it is necessary that
the starter engine starts at the activation of the engine
immediately with full power to prevent the kick-back of
the combustion engine. (Please do not use electric controllers)
For glow plug engines you also need a plug warmer (stock
number 9593 B) which is switched on and off directly by
the receiver via a channel or mixer.
Current supply of the electric on-board starter
The current supply of the starter engine and of the heater
plug only requires a starter storage battery to which also
the electric plug warmer is connected.
Recommendation for starting storage batteries
For starting storage battery you have to use highamperage
(16 A) NC, NiMh or LiPo batteries that are
also deployed in electric flying model aircrafts. Every kit
contains detailed assembly instructions and a manual
for the trouble-free assembly of your electric on-board
starting system.
If you don‘t find a suitable on-board starter for your
internal combustion engine in our product range, please
contact us. Due to the modular design of the on-board
starting systems we can assemble an individual onboard
starter for you.
Different to the universal on-board starting system, the
starting device and the starter engine of the compact onboard
starter are attached directly to the internal combustion
engine. Thus the internal combustion engine and the
on-board starter form a compact unit.
We hope you will enjoy your hobby with our on-board
starting systems!
www.fema-modelltechnik.de

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Universal/compact on-board starter
Abb. 1 Abb. 2
Stock number 9500 Basic kit for 7.5-14 ccm engines
Stock number 9512 Basic kit for 15-35 ccm engines
Stock number 9514 Complete kit for OS-Max BGX-1,
OS-Max 160 FX, Moki-25, Magnum XL180AR, Laser
200, MVVS-35 (Glow)
The universal on-board starting system of figure I for
aircraft engines can be attached to all common single
cylinder glow plug engines. In addition to the basic kit
each motor type requires an adapter kit. The complete
set contains the adapter set for the respective motor
type.
For the operation of the glow plug you also need the plug
warmer (stock number 9593B) which is not included in
the kit.
If you use the plug warmer you only require one storage
battery for the operation of the on-board starter from
which the starter engine and the glow plug are fed.
The basic kit and the complete kit include all mechanical
and electric components that are necessary for the
operation of the on-board starter. The universal on-board
starting system can also be attached as a compact version
(see figure II). The holder plate is not included in
the delivery, you can build it on your own or purchase it
from us.
Stock number 9500/15 holder plate for 9500, 100x100x4mm*
Stock number 9512/15 holder plate for 9512, 125x125x4mm*
Stock number 9514/15 holder plate for 9514, 150x150x4mm*
*with borings, without outline
Adapters for 7.5 - 35cc aircraft and naval engines*
In addition to the basic kit, an adapter is necessary for each
engine type. Adapters can be combined individually for internal nut
combustion engines that are not listed above. Please specify with
your order thread = d1 and diameter = d2
Available clamping rings and thrust washers:
d2: 6.0, 7.0, 8.0, 9.5, 10, 12(mm)
Available nuts:
d1: M6, M7, M8, 1/4-28UNF, 5/16-24UNF, 3/8-24UNF, M8x1, M10x1
holder disc
clamping ring
thrust washers
9532 OS-Max-FS60/61, 70, 80, 90/91 (4-Stroke) – OS-Max 61/91 FX (2-Stroke)........................5/16“UNF-24 .........9,5 mm
9537 Saito, FA 45, FA 50, FA 56, FA 65, FA 72, FA 80 (4-Stroke)...........................................................M6 .........8,0 mm
9539 Enya 60-4C, 80-4C (4-Stroke).......................................................................................................M7 ......7/9,5 mm
9540 OS-Max-FS120 (4-Stroke), – OS-Max-90/91, 104RX, 140 RX (2-Stroke) ............................5/16“UNF-24 .......10,0 mm
Magnum XL-70AR, XL-80AR, XL-90/91AR, XL-120AR, XL-180AR (4-Stroke)
9541 Webra-Speed 91, 120 Aero (2-Stroke) – Saito FA 90/91, 100, 120, 150, 180, 220 (4-Stroke) ........... M8........10,0 mm
9543 OS-Max FS 40, FS 48, FS 52 Laser 70 (4-Stroke) .............................................................1/4“UNF-28 ......8/6,3 mm
9545 Enya 46-4C, 53-4C (4-Stroke)..........................................................................................1/4“UNF-28 ...6,3/8,0 mm
9546 Enya 90-4C (4-Stroke).............................................................................................................M7/28 ...7,0/9,5 mm
9548 Magnum XL108A, XL120A, OS-Max 108 FSR (2-Stroke) ....................................................3/8“UNF-24 .......10,0 mm
9549 Enya 120-4C (4Stroke)........................................................................................................... M8 x 1 ....8,0/12 mm
9550 MVVS-26 (Glow).................................................................................................................. M10 x 1 .......10,0 mm
The engines: Magnum, ASP and SC are identical.
Additionally required parts that are not included in the kit:
1 plug heater, stock number 9593B
1 starter storage battery 9.6 Volt, min 1.0 Ah for engines up to 18 cc
1 starter storage battery 10.8-12 Volt, min 1.0 Ah for engines over 18cc
www.fema-modelltechnik.de

Universal/compact on-board starter
Spare parts for 9500 9512 9514
Support, 2 units 9500/01 9512/01 9512/01
Plate 9500/02 9512/02 9514/01
Bearing 9500/03 9500/03 9500/03
Freewheeling gear, 60/76/92 teeth, m=0.8 9500/05 9512/05 9712/04
Bevel, 10 teeth, m=0.8 9500/06 9500/06 9500/06
Coupling 9500/07 9518/07 9712/07
Cardan shaft 9515/07 9515/07 9515/07
Starter engine with gearbox 9580/01* 9570/01* 9572/01*
Gearbox, single 9580/02 9570/02 9570/02
Starter engine with bevel, 12 teeth, m = 0.5 9580/05 9570/05 9575/03
Aluminium gear with output shaft 9580/04 9570/04 9570/04
Bevel for starter engine, 12 teeth, m = 0.5 9570/03 9570/03 9570/03
Micro switch, single 9560/04 9560/04 9560/04
Board switch, 16A 9560/07 9560/07 9560/07
Small parts kit (not shown) 9500/12 9512/12 9514/12
Thrust washer 9530/35
Clamping ring 9530/26
* Dimensional drawings see page 14
Dimensional drawing: basic kit, stock number
Spare parts for 9500, 9512, 9514
9500/ 9512/ 9514
plate
support
bevel
bearing
5
»A«
B
5
micro switch
A
D
cardan shaft
9,6
freewheeling gear coupling thrust washer
cone ring
C
on-board switch
starter engine
with bevel
aluminium gear
with output shaft
gearbox
single
F
View »A«
starter engine with gearbox
E
Table with dimensions (dimensions in mm ) / weight (without starter storage battery)
type A B C D E F
9500 29,0 24,0 68,0 48,0 25,0 37,0
9512 35,0 24,0 76,0 60,8 25,0 40,0
9514 42,0 26,0 90,0 73,6 30,0 50,0
weight
320 gr.
380 gr.
440 gr.
www.fema-modelltechnik.de

<strong>Compact</strong>/universal on-board starter
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Stock number 9710 compact on-boars starter for
OS-Max FT 120/160
Stock number 9711 compact on-board starter for
OS-Max FF 320 »Pegasus«
Stock number 9712 compact on-board starter for
OS-Max FT 240/300
Stock number 9720 compact on-board starter
for Magnum XL 160 FT
The on-board starters for boxer engines are designed as
compact on-board starters. The kit contains all mechanical
components as well as the starter engine with
all-metal gearbox and all electric components that are
necessary for the assembly of the on-board starter in the
model.
If there is no room for the compact on-board starter under
the cowl the starter engine can also be attached separately
inside the fuselage. The kits include the components
that are required for both assembly types.
For the operation of the glow plug you also need the plug
warmer (stock number 9593B) which is not included in
the kit. If you use the plug warmer you only require one
storage battery for the operation of the on-board starter
from which the starter engine and the glow plug are fed.
Additionally required parts that are not included in the
kit:
1 starter storage battery 9.6 Volt, min 1.0 Ah for
9710,9711, 9720
1 starter storage battery 10.8-12 Volt, min 1.0 Ah for
9712.
Spare parts for 9710, 9711, 9712, 9720
bevel
bearing
cardan shaft
engine support
freewheeling gear coupling thrust washer
cone ring
on-board switch
starter engine
with bevel
aluminium gear
with output shaft
plate for bevel bearing
micro switch
gearbox
single
dowel pin/bearing
starter engine with gearbox
www.fema-modelltechnik.de

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<strong>Compact</strong>/universal on-board starter
Spare parts for 9710 9711 9712 9720
Thrust washer 9530/33 9530/33 9530/35 9530/34
Clamping ring 9530/23 9530/23 9530/26 9530/24
Plate for bevel bearing 9518/03 9711/01 9712/02 9518/03
Engine support plate 9710/01 9710/01 9710/01
Carrier for electric motor (not shown) 9712/05
Al/bolt/bearing, 2 units 9518/05 9712/03 9720/05
Freewheeling gear 76/92 teeth, m=0.8 9512/05 9512/05 9712/04 9512/05
Coupling 9518/07 9518/07 9712/07 9518/07
Bearing 9500/03 9500/03 9500/03 9500/03
Bevel 10 teeth, m=0.8 9500/06 9500/06 9500/06 9500/06
Cardan shaft 9515/07 9515/07 9515/07 9515/07
Starter engine with gearbox 9580/01* 9570/01* 9570/01* 9580/01*
Gearbox single 9580/02 9570/02 9570/02 9580/02
Starter engine with bevel, 12 teeth, m=0.5 9580/05 9575/03 9575/03 9580/05
Aluminium gear with output shaft 9580/04 9570/04 9570/04 9580/04
Micro switch, single 9560/04 9560/04 9560/04 9560/04
On-board switch, 16A 9560/07 9560/07 9560/07 9560/07
Small parts kit (not shown) 9710/12 9711/12 9712/12 9720/12
*Dimensional drawings see page 14
Dimensional drawings: 9710 / 9711 / 9712 / 9720
9,6 Ø
F
E
C
D
A
»A«
B
G
View »A«
Table with dimensions (dimensions in mm ) / weight (without starter storage battery)
Type A B C D E F G
9710 35,0 24,0 44,0 60,8 28,0 60,0 8,0
9711 35,0 24,0 44,0 60,8 28,0 60,0 8,0
9712 42,0 26,0 50,0 73,6 35,0 70,0 16,0
9720 35,0 24,0 44,0 60,8 28,0 60,0 8,0
Weight
400 gr.
450 gr.
500 gr.
400 gr.
www.fema-modelltechnik.de

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<strong>Compact</strong> on-board starter
Stock number 9400A <strong>Compact</strong> on-board starter for:
Zenoah G 239/260 RC
Stock number 9402A <strong>Compact</strong> on-board starter for:
Zenoah G 270 RC
These on-board starters were developed especially for
the use in ZENOAH engines with a cubic capacity of
20-29 cm² and are universally suitable for park-flyers,
helicopter, car and ship models.
The on-board starters are designed as compact onboard
starters, i.e. the starting device and the starter
engine are mounted directly to the internal combustion
engine. Thus the internal combustion engine and the
on-board starter form a very compact unit.
The complete driving unit can also be easily attached to
vibration absorbing elements in the model. The choice
for the best suited on-board starter for your model
simply depends on your combustion engine and the
available space in your model.
Stock number 9420A <strong>Compact</strong> on board starter for:
Titan ZG 23/26, ZG 231/260,
Zenoah G 230/260 PU, G 231/260 PUH
the free-wheel separates the combustion engine from
the on-board starter.
Assembly kits:
The kits contain all mechanical components as well as
the starter engine with metal gearbox and all electric
components required for the integration of the on-board
starter into the model.
The starter storage battery is not included in the kit.
Stock number 9400A Fits in all helicopters produced
by Vario and AeroTec as well as for all helicopter
and car models if there is enough space in your model.
Stock numbers 9420A, 9421A, 9713A, 9714 and
9715A Designed for the universal usage in park-flyers,
helicopter and car models.
Stock number 9613A A special design for the use in
ship models.
Functionality:
The mechanical construction of the on-board starters is
similar for all models. The power is transmitted from the
starter engine to the crank shaft of the internal combustion
engine via the gear reduction with integrated freewheel.
When the internal combustion engine is running
Stock number 9412A <strong>Compact</strong> on-board starter for:
Titan ZG 20,
Zenoah G 200 PU
www.fema-modelltechnik.de

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<strong>Compact</strong> on-board starter
Stock number 9713A <strong>Compact</strong> on-board starter for:
Titan ZG 23/26, ZG 231/260 Heli,
Zenoah G 230/260 PU, G 231/260 PUH
Note:
The compact on-board starters with stock number
9400A, 9421A, 9713A, 9715A and 9613A can be
attached directly to the standard engine support plate of
the engine. The engine support plate contains all threads
that are required for the assembly. If you use a combustion
engine without engine support plate you can order it
here (see spare parts list).
Stock number 9715A <strong>Compact</strong> on-board starter for:
Titan ZG 20,
Zenoah G 200 PU
The engine support plate is included in the kit for the
compact on-board starters with stock number 9420A
and 9714.
Additionally required parts that are not included in the
kit:
1 starter storage battery, 9.6-10.8 Volt, min. 1.0 Ah for:
9400A, 9420A, 9421A, 9713A, 9715A.
1 starter storage battery, 10.8-15 Volt, min. 1.0 Ah for:
9613A and 9714
Stock number 9714 <strong>Compact</strong> on-board starter for:
Titan ZG 38,
Zenoah G 380 PU
Stock number 9613A <strong>Compact</strong> on-board starter for:
Titan ZG 23/26 Marine,
Zenoah G 230/260 PUM
www.fema-modelltechnik.de

<strong>Compact</strong> on-board starter
10
Ersatzteile für 9400A 9420A 9421A 9613A 9713A 9714 9715A
Spare parts for 9420/08 9715/08* 9420/08* 9420/08* 9520/01 9715/08*
Engine support plate 9530/32 9530/33 9530/32
Thrust washer 9400/10 9400/10 9400/10 9400/10 9400/10 9500/07 9400/10
Tappet 9400/11 9400/11 9400/11 9400/11 9400/11 9400/11
Freewheeling gear,
76 teeth, m = 0.8mm
9400/12 9420/12 9420/12 9410/12 9410/12 9512/05 9410/12
Gearbox support with bevel, 10
teeth and aluminium gear
9400/16 9420/16 9420/16 9713/02 9713/02 9714/02 9715/02
Carrier for electric motor 9400/15 9420/15 9420/15 9713/04 9713/04 9714/04 9715/04
Starter engine with bevel 9400/04 9420/04 9420/04 9575/03 9580/05 9575/03 9580/05
Small parts kit 9400/07 9420/07 9421/07 9613/12 9713/12 9714/07 9515/07
Fan wheel with reconditioning 9400/08
Nut M8x1 left 9520/02
Clamping ring 9530/24
Micro switch, 16A
9560/05 suitable for all on-board starters
On-board switch, 16A
9560/07 suitable for all on-board starters
2 core cable 1.6 mm 9560/08 suitable for all on-board starters
Weight without starter storage battery in g. 375 375 375 450 375 450 375
bevel
engine support plate
tappet
carrier for electric motor
clamping ring
freewheeling gear,
76 teeth, m = 0.8mm
thrust washer
holder disc
on-board switch, 16A
gearbox support with bevel,
10 teeth and al. gear
starter engine with bevel
nut M8 x 1
left

<strong>Compact</strong> on-board starter
11
37,5
Dimensional drawing
9400A
75
54
Dimensional drawing
9420A/9421A
54
29 Ø
74
16
36
20
Zenoah
G-231PUH
6
29Ø
54
Fan housing, Zenoah G230/260 RC
75
75
60
60
40
74
75
30
30
Dimensional drawing
9613A, 9713A, 9715A
60
36
15
40
24
52/60*
6,5
31
75
62
14
30 44
ø 36
starter engine
9570/05
9575/03
94
105
*engine support plate (provided at the
engine) Stock number 9519/01
Dimensional drawing
9714
44 40
14
5
24
40
60
5,4
48
36
15
60
ø 36
starter engine
9575/03
70
100
engine support plate
Best.Nr. 9520/01
www.fema-modelltechnik.de

<strong>Compact</strong> on-board starter
12
Stock number 9724
<strong>Compact</strong> on-board starter for Titan ZG-62, Zenoah G62
Stock number 9725
<strong>Compact</strong> on-board starter for Titan ZG-45, Zenoah G45
Stock number 9730A
<strong>Compact</strong> on-board starter for Titan ZG-80, Zenoah G80
Stock number 9724/10
Electronic unit for adjustment of ignition point.
These on-board starters are designed as compact onboard
starters, i.e. the starting device and the starter
engine are mounted directly to the internal combustion
engine. Thus the internal combustion engine and the onboard
starter form a compact unit. The kit contains all
mechanical components as well as the starter engine with
metal gearbox and all electric components required for
the integration of the on-board starter into the model. The
FEMA engine support plate for ZG 45/62 and the engine
support for ZG-74/80 are included in the kit.
The engine support for ZG-74/80 has the same dimensions
and fi xing holes as the standard engine support
made from sheet steel. You can also mount the ZG-62/45
in connection with the »Hydro-Mount-System Pitts« of
company Toni Clark. You can order the engine support
plate and all required fi xing holes under stock number
9724-02 directly from us.
To reduce the danger of a backstroke for the Titan/
Zenoah engines with magneto ignition we recommend
the assembly of the electronic unit with stock number
9724110. The electronictlnit functions without auxiliary
energy and provides an adjustment of the ignition
point at starting and stopping the combustion engine.
There is no danger of a backstroke if the engines are
equipped with a microprocessor ignition PCI of the
company Tony Clark (www.toni-clark.com).
Spare parts 9724, 9725, 9730
9730-01 9724-01
9724-09 9724-06
9724-04/9730-05
9724-05
9530/34
9730-03
9725-03
9724-03
9560-04
9724-10
9724-07 9575-03
9730-04 9724-04
9530/35
9530/34
www.fema-modelltechnik.de

<strong>Compact</strong> on-board starter
Name 9724 9725 9730
Engine support plate/support* 9724/01 9724/01 9730/01*
Engine support »Hydro-Mount-System Pitts« 9724-02 9724-02 -
Coupling 9724/06 9725/06 9730/06
Freewheeling gear, 76 teeth, m = 0.8 9524/04 9524/04 9524/04
Thrust washer 9530-35 9530-35 9530-35
Nut M10x1 / M8x1 9724/03 9725/03 9730/03
Bevel support plate 9724/04 9724/04 9730/04
Bevel bearing 9724/05 9724/05 9724/05
Bevel 10 teeth 9500/06 9500/06 9500/06
Aluminium gear with 90 teeth, m = 0.5 9724/09 9724/09 9724/09
Carrier for electric motor 9724/07 9724/07 9724/07
Starter engine Speed 600, with bevel 12 teeth 9575/03 9575/03 9575/03
Micro switch, 16A 9560/04 9560/04 9560/04
On-board switch, 16A 9560/07 9560/07 9560/07
Electronics 9724/10 9724/10 9724/10
Small parts kit (not shown) 9724/12 9725/12 9730-12
13
Dimensional drawing 9724, 9725 / weight (without engine support and starter storage battery) ca. 500 gr.
55
9724/01
70
100
120
58
Dimensional drawing 9730 / weight (without engine support and starter storage battery) ca. 500 gr.
9
60
80
120
100
54
98
84
58
60
80
36 Ø
25
60
starter engine
9575/03
10
50
64
54
98
84
58
36 Ø
36 Ø
9
9730/01 *9730/01
60
Anlassmotor starter engine
9575/03 9575/03
60
70
Additionally required parts that are not included in the kit: 1 starter storage battery 10.8-15 Volt, min 1.0 Ah.
www.fema-modelltechnik.de

14
Accessories for on-board starters
Dimensional drawing:
Starter engine with gearbox Stock number 9580-01
54
50
40
29 Ø
5
1.45
Stock number 9593B glow control for 1-2 glow plugs.
22
38
45
The plug warmer GlowControl 1-2 OAS by rainbowtronic
is designed to start the engine on ground and in
the air and provides a proper operation of the engine in a
slow speed range. The plug warmer is simply connected
via a Y-cable or a free receiver channel parallel to the gas
servo. It is based on the latest microprocessor technology
in industrial quality and is designed for the deployment
in methanol engines with 1 or 2 cylinders with on-board
starting systems.
Technical data 9593B
Input supply voltage: 8.4-12 Volt
Plug voltage: 1.4-2.0 Volt
Plug current: 1-10 Ampere
8
28
Dimensional drawing:
Starter engine with gearbox Stock number 9570-01
19,5
20
L= 52mm(9570-01)
L= 60mm(9572-01)
36 Ø
30
36
15
34
Gas springs:
For the universal implementation in model
making, i.e. undercarriages, self launch system, cockpit
canopy, etc. Borehole of 6.1mm on both sides
Stock number 9598 top performance fat
For the lubrication of the freewheel we recommend this
top performance fat.
Best.Nr. resilience spring deflexion L
910 50N/ 5kg 20 mm 106,5
911 100N/ 10kg 20 mm 106,5
912 150N/ 15kg 20 mm 106,5
913 200N/ 20kg 20 mm 106,5
914 300N/ 30kg 20 mm 106,5
915 400N/ 40kg 20 mm 106,5
Best.Nr. resilience spring deflexion L
920 50N/ 5kg 40 mm 146,5
921 100N/ 10kg 40 mm 146,5
922 150N/ 15kg 40 mm 146,5
923 200N/ 20kg 40 mm 146,5
924 300N/ 30kg 40 mm 146,5
925 400N/ 40kg 40 mm 146,5
6,1 6,1
Ø 6
Ø 15
spring deflexion
L
www.fema-modelltechnik.de

15
Solid tires/Axles for Models
Solid tires with GFRP-rims and Alhub
with 6.1 mm boring (expandable
to 8.1 mm).
These high-quality tires are the ideal
completion to our undercarriages,
lf the model weighs more than
about 4 kg solid tires are the only
alternative to the well-known model
air tires. Solid tires stand up to the
highest demands and am suitable
for both grant sail planes and
models with engine. The tires are
extremely tough with an optimum
damping. Extreme stress caused by
the weight of the model does not,
even at hot temperatures, lead to a
flat tire. Though the tires are very
sturdy they are also really light. You
don’t have to worry about the valves
or about inflating our solid tires!
Stock no. diameter wheel width hub width weight hub boring
9910/70*.............. 70 mm .......................24 mm....................... 18 mm ...................30 gr.......................5,1
9910/82*.............. 82 mm .......................28 mm....................... 20 mm ...................45 gr.......................5,1
9910/90 ................ 90 mm .......................34 mm....................... 40 mm ...................95 gr.......................6,1
9910/100 ............ 100 mm ......................37 mm....................... 40 mm ..................105 gr......................6,1
9910/112............. 112 mm ......................39 mm....................... 40 mm ..................135 gr......................6,1
9910/127 ............ 127 mm ......................43 mm....................... 44 mm .................. 180 gr .....................6,1
9910/140 ............ 140 mm ......................50 mm....................... 44 mm .................. 225 gr .....................6,1
9910/152 ............ 152 mm ......................54 mm....................... 44 mm ..................300 gr......................8,1
9910/165 ............ 165 mm ......................50 mm....................... 44 mm ..................350 gr......................8,1
9910/178 ............ 178 mm ......................58 mm....................... 44 mm ..................380 gr......................8,1
*without Al-Hub
Axles for models with engine
9940......... 2 pcs Tempering steel axles 6mm for models up to a weight of 12 kg.
9942......... 2 pcs Tempering steel axles 8mm for models up to a weight of 20 kg.
We deliver axles for models with engine made out of
high-quality tempering steel that match our solid tire
wheels of a diameter of 90-178 mm and a hub diameter
of 6.1/8.1mm. The threaded length is measured in such
a way that it is possible to attach also the wheel cover.
A nut secures the attachment of the wheel. The bearing
of the axle is made out of high-quality aluminium and
has a diameter of 10/12 mm. The axle is attached to
the smooth stem in order to avoid a notch effect that is
common at an attachment at the thread.
d1
d2
B
A
C
D1
D2
Maßtabelle/Gewicht (Maße in mm)
Typ A B C d1 d2 D1 D2 Gewicht
9940 85 68 13 6 M6 10 M10 55 gr.
9942 95 75 16 8 M8 12 M12 95 gr.
www.fema-modelltechnik.de

Balancing machine · blade rotor head
16
Stock 9270
Universal balancing machine for propellers of a diameter of 12” (300mm)
to 40” (1000mm) and borings of 8.0/10.0/12.0 and 20 mm in diameter.
The maximum hub thickness of the propeller is 48mm.
The FEMA-balancing machine is world-wide the only one
that lets you balance-out the propellers lengthways and
sideways to the rotor blades. Due to the simple handling
and to the high-precision display, every model maker
can now balance-out exactly the propellers on his own.
A propeller that is perfectly balanced-out protects the
internal combustion engine and the radio control from
harmful vibration and also reduces the noise development
to a minimum.
Stock 9280A
Blade rotor head with a fastening boring of 3, 4, 5, and 6 mm
Using this rotor blade balancer equipped with a level, rotor
blades can be statically balanced with great precision.
The reading is accurate to as low a value as 0,05g at a
distance of 20cm. This is achieved with the aid of the
built-in level in conjunction with practically friction-free
pendulum-type bearing
Prior to bolting a pair of rotor blades onto the blade holder
the centre of gravity of each blade has to be established
first and, if necessary, corrected, The c.o.g. position of the
pair of blades, too, must be identical. It is only then that
a pair of blades can be balanced with the unit.
In ease of 3-bladed or multi-bladed rotors the heaviest of
the rotor blades has to be found first; the lighter ones have
then to be brought up to the weight of the heavier one
- one by one - by applying lengths of pressure sensitive
tape at the centre of gravity of the blades.
The Blade rotor head ist prepared for blades with 3, 4,
5, and 6 mm.
www.fema-modelltechnik.de
02/05/06

EZFW-Programm
17
FEMA-Retractable undercarriages for models
in the scale 2,0-4,5.
Optional: With springs and wheel brake.
New, weight-optimized design.
Basis-chassis
for fixed mounting
between two fuselage bulkheads
Option: supplement sets
for spring-loaded mounting
Option:
Highly effective wheel brake
FEMA-Retractable undercarriages for
big-scale models set new graduations
concerning quality and price!
www.fema-modelltechnik.de

18
Retractable undercarriages
The retractable undercarriages are available
in four sizes:
Stock number 9800A
for models at a scale of 2.0 – 2.8
for wheel diameters of 165, 152 and 140mm
Stock number 9810A
for models at a scale of 2.5 – 3.2
for wheel diameters of 127 and 112mm
Stock number 9820A
for models at a scale of 3.3 – 3.7
for wheel diameters of 100 and 90mm
Stock number 9830A
for models at a scale of 3.8 -4.5
for wheel diameters of 70 and 82mm
A retractable undercarriage is essential for scale
and semi-scale models. The “FEMA retractable
undercarriages” are being used successfully for years
and have demonstrated their ability in flight practice.
Mr Gardemin wrote in his test report about retractable
undercarriages:
»FEMA retractable undercarriages are without any
technical paraphernalia but they are designed 100%
functional and sturdy.«
We still feel obliged to this statement, now and in future.
The new generation of FEMA retractable undercarriages
for large sail-planes is a logical development of the
proven undercarriages which we have been producing
since 1988. The retractable undercarriages are designed
modularly and thus can be adapted perfectly to different
conditions. The undercarriages can be installed either
firmly between two fuselage bulkheads or spring-loaded.
If they are used together with FEMA solid tires, these
retractable undercarriages withstand even extreme
strains. The inflexible mounting between two bulkheads
of the fuselage is perfect for standard models. It is
advisable to use spring-loaded carriages for really soft
touch-downs. The gas pressure spring makes the best
Wheel cover from glass fibre reinforced plastics.
The wheel cover is an ideal splash guard and protects
the inside of the fuselage against spraying water
and dirt during take-off and landing. You just have to slide
the wheel cover between the rocker arms of the retractable
undercarriage and attach it with silicone adhesive.
The wheel cover is retrofittable for all FEMA undercarriages,
that have been previously delivered.
possible damping even on the roughest runways. The
damping can be adjusted to the weight of the model
by three damping variations all of them available for
immediate delivery. The required springiness of the gas
pressure spring can be calculated as follows:
Springiness (N)=model weight in kg x 40 (1kg~t10N)
Gas pressure springs are available with a springiness of
200N, 300N, 400N. Models of more than 10kg require
the attachment of 2 springs, more than 20kg require the
attachment of three springs.
We have made the mounting of the springloaded
version considerably easier and also made room for
the attachment of the moulded seat.
The additional kit for spring-loaded mounting includes
two stable aluminium angles with borings for the
mounting. They are attached to the fuselage bulkhead
with the same screws as the retractable undercarriage.
This makes it possible to prepare the fuselage bulkhead
as shown in the illustration and you obtain enough room
for building in the moulded seat.
For the safety of your model, we recommend the
attachment of a wheel brake independently of whether
the undercarriage is attached firmly or spring-loaded.
The wheel brake is operated by a servo and it can be
applied extremely sensible though its high brake power.
If the retractable undercarriage is attached firmly, the
brake-servo can be mounted on the front fasteningbulkhead
or directly on the chassis of the undercarriage.

Retractable undercarriages
If it is attached spring-loaded, the brake-servo has to be
attached to the chassis of the undercarriage in order to
ensure the safely functioning of the wheel brake when the
retractable undercarriage is spring deflected. If the brakeservo
is attached to the chassis of the undercarriage,
an additional reversing lever (stock number 9890/22) is
necessary.
The retractable undercarriages have the following
outstanding features:
● Reliable functions - Bolt mechanisms on both final positions.
● Highly efficient wheel brake - safety for model and operator.
● Spring-loaded installation - for really soft touch-downs.
● Robust attachment in the fuselage - between two
plywood bulkheads.
● Installation height in the fuselage is relatively variable .
● Installation of 1 to 4 servos is easily possible
in connection with the servo holder (landing gear rudder,
vertical rudder and elevator rudder)
● The wheel frame made out of spring steel ensures a safe
function of the ventral flaps.
● A detailed instruction manual makes the installation as
easy as possible. With these retractable undercarriages,
we set new standards concerning quality, modularity and
price.
We are looking forward to equipping your sail plane
with a FEMA-retractable undercarriage.
19
Degree picture: masses in mm
servo-holder
hanger
Part number A B C D E F Weight* Model-weight
9800A 272 80 68 140 - 165 66 92 680 g 12 - 25 kg
9810A 220 72 60 110 - 127 56 68 420 g 8 - 16 kg
9820A 196 62 50 90 - 100 46 60 350 g 5 - 10 kg
9830A 172 54 44 70 -80 36 54 200 g 3 - 7 kg
*without wheel, servo-holder and wheelbow

20
Retractable undercarriages
Retractable undercarriages for wheel diameter 165, 152 and 140mm, for models to a scale of 2,0 to 2,8 - model weight 12-25kg
Stock number
9800A ..............assembled completely without wheel and bow
9801A ..............assembled completely with VG-wheel 140mm diameter and bow
9802A ..............assembled completely with VG-wheel 152mm diameter and bow
9803A ..............assembled completely with VG-wheel 165mm diameter and bow
9800/10..........wheel brake for wheel diameter of 140mm
9800/11 ..........wheel brake for wheel diameter of 152mm
9800/12..........wheel brake for wheel diameter of 165mm
9800/14..........Wheel cover from glass for wheel diameter of 140-165mm
9800/15..........additional kit for spring-loaded mounting without gas pressure spring
9800/16..........axels with accessories
Retractable undercarriages for wheel diameter 127 and 112mm, for models to a scale of 2,5 to 3,2 - model weight 8-16kg
9810A ..............assembled completely without wheel and bow
9813A ..............assembled completely with VG-wheel -112 mm diameter and bow
9814A ..............assembled completely with VG-wheel -127 mm diameter and bow
9810/10..........wheel brake for wheel diameter of 112 mm
9810/11 ..........wheel brake for wheel diameter of 127 mm
9800/14..........Wheel cover from glass for wheel diameter of 112-127mm
9810/15..........additional kit for spring-loaded mounting without gas pressure spring
9810/16..........axels with accessories
Retractable undercarriages for wheel diameter 100 and 90mm, for models to a scale of 3,3 to 3,7 - model weight 5-10kg
9820A ..............assembled completely without wheel and bow
9823A ..............assembled completely with VG-wheel -90 mm diameter and bow
9824A ..............assembled completely with VG-wheel -100 mm diameter and bow
9820/10..........wheel brake for wheel diameter of 90 mm
9820/11 ..........wheel brake for wheel diameter of 100 mm
9800/14..........Wheel cover from glass for wheel diameter of 90-100mm
9820/15..........additional kit for spring-loaded mounting without gas pressure spring
9820/16..........axels with accessories
Retractable undercarriages for wheel diameter 82 and 70mm, for models to a scale of 3,8 to 4,3 - model weight 3-7kg ........
9830A ..............assembled completely without VG-wheel and bow
9833A ..............assembled completely with PVC-wheel 70mm diameter and bow
9834A ..............assembled completely with PVC-wheel 82mm diameter and bow
9830/10..........wheel brake for wheel diameter of 70 mm
9830/11 ..........wheel brake for wheel diameter of 82 mm
9800/14..........Wheel cover from glass for wheel diameter of 70-82mm
9830/15..........additional kit for spring-loaded mounting without gas pressure spring
9830/16..........axels with accessories
Accessories, suitable for all retractable undercarriages
9890/200 .......gas pressure spring, 200N springiness
9890/300 .......gas pressure spring, 300N springiness
9890/400 .......gas pressure spring, 400N springiness
9890/20..........servo holder, suitable for all retractable undercarriages
9890/22..........reversing lever for wheel brake, suitable for all retractable undercarriages
9890/25..........wheelbow (with order indicate the wheel diameter)
9890/26..........Actuating lever (plastics), borehole of 4mm
9890/27..........Actuating lever (metal), borehole of 5mm
9890/28..........Actuating lever (metal), borehole of 6mm
Böhler GmbH · Obere Rebbergstr.11 · D-77709 Wolfach · Tel.07834/303 · Fax 07834/47735
www.fema-modelltechnik.de
24/07/09