High-quality accessories for the ambitious model maker

1 High-quality accessories for the ambitious model maker

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 Compact 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.

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. Compact 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!

4 Universal on-board starter figure I figure II 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. 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. For the operation of the glow plug you also need the plug warmer (stock number 9593B) which is not included in the kit. 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

Universal 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.

6 Universal on-board starter Stock number 9710 Compact on-board starter for OS- Max FT 120/160 Stock number 9711 Compact on-board starter for OS- Max FF 320»Pegasus«Stock number 9732 Compact on-board starter for Saito FG-57T The on-board starters for flat 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. Spare parts for 9710, 9711, 9732 For the operation of the glows plug you need an additional»glow Control«which is not included in the kit. Stock number 9593B for OS-Max FT-120/160 Gemini Stock number 9594B for OS Max FF-320 Pegasus If you use the»glow Control«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. Saito FG-57 comes standard with an ignition system. Additionally required products that are not included in the kit: 1 starter storage battery 9.6 12 Volt, min. 1.0 Ah for stock numbers 9710, 9711 1 starter storage battery 10.8 12 Volt, min. 1.0 Ah for stock number 9732 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

7 Universal on-board starter Spare parts for 9710 9711 9712 Thrust washer 9530/33 9530/33 9530/35 Clamping ring 9530/23 9530/23 9530/26 Plate for bevel bearing 9518/03 9711/01 9712/02 Engine support plate 9710/01 9710/01 Carrier for electric motor (not shown) 9712/05 Al/bolt/bearing, 2 units 9518/05 9712/03 Freewheeling gear 76/92 teeth, m=0.8 9512/05 9512/05 9712/04 Coupling 9518/07 9518/07 9712/07 Bearing 9500/03 9500/03 9500/03 Bevel 10 teeth, m=0.8 9500/06 9500/06 9500/06 Cardan shaft 9515/07 9515/07 9515/07 Starter engine with gearbox 9580/01* 9572/01* 9572/01* Gearbox single 9580/02 9570/02 9570/02 Starter engine with bevel, 12 teeth, m=0.5 9580/05 9575/03 9575/03 Aluminium gear with output shaft 9580/04 9570/04 9570/04 Micro switch, single 9560/04 9560/04 9560/04 On-board switch, 16A 9560/07 9560/07 9560/07 Small parts kit (not shown) 9710/12 9711/12 9712/12 *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 Weight 400 gr. 450 gr. 500 gr.

8 Compact on-board starter Stock number 9400A Compact on-board starter for: Zenoah G 230/260/270 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 Compact 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 Compact on-board starter for: Titan ZG 20, Zenoah G 200 PU

9 Compact on-board starter Stock number 9713A Compact 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 Compact 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 Compact on-board starter for: Titan ZG 38, Zenoah G 380 PU Stock number 9613A Compact on-board starter for: Titan ZG 23/26 Marine, Zenoah G 230/260 PUM

Compact on-board starter 10 Spare parts for 9400A 9420A 9421A 9613A 9713A 9714 9715A Engine support plate 9420/08 9715/08* 9420/08* 9420/08* 9520/01 9715/08* Thrust washer 9530/32 9530/33 9530/32 Holder disc 9400/10 9400/10 9400/10 9400/10 9400/10 9500/07 9400/10 Coupling 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 9715/02 9714/02 9715/02 Carrier for electric motor 9400/15 9420/15 9420/15 9713/04 9715/04 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 9715/07 Fan wheel with reconditioning 9400/08 Nut M8x1 left 9520/02 Clamping ring 9530/24 Micro switch, 16A 9560/04 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 coupling 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

Compact on-board starter 11 37,5 Dimensional drawing 9400A 75 54 Dimensional drawing 9420A/9421A 54 29 Ø 74 32 52 20 6 Zenoah G-231PUH 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* 31 75 62 14 30 44 ø 36 6,5 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

Compact on-board starter 12 Stock number 9724 Compact on-board starter for Titan ZG-62, Zenoah G62 Stock number 9725 Compact on-board starter for Titan ZG-45, Zenoah G45 Stock number 9730A Compact on-board starter for Zenoah/Titan ZG-74/80 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 on-board 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 also included in the kit. Spare parts 9724, 9725, 9730A The engine support for ZG-74/80 has the same dimensions and fixing holes as the standard engine support made from sheet steel. It is also possible to assemble the ZG-62/45 in connection with the»hydro-mount-system Pitts«of the company Toni Clark. You can order the engine support plate with stock number 9724-02 directly from us. To eliminate the risk of kickback for the engines of type Titan and Zenoah with magneto ignition we recommend to equip the engines with a micro processor ignition unit PCI of the company»www.toniclark.com«. This modification is mandatory for the operation of Titan/Zenoah ZG-74/80. 9730-01/9724-01 9724-09 9724-06 9725-06 9730-06 A 9524-04/9730-05 A 9724-05 9500/06 9730-03 9725-03 9724-03 9560-04 9724-10 9724-07 9575-03 9730-04/9724-04 9530/35 9560/07

Compact on-board starter Spare parts for 9724 9725 9730 A 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 A Freewheeling gear, 76 teeth, m = 0.8 9524/04 9524/04 9730/05 A 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.

14 Accessories for on-board starters Dimensional drawing: Starter engine with gearbox Stock number 9580-01 54 50 40 5 Stock number 9592B Glow Control for 1 glow plug Stock number 9593B Glow Control for 1-2 glow plugs Stock number 9594B Glow Control for 1-4 glow plugs 29 Ø 1.45 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. The power of the»glow-control«is supplied via the starter storage battery. The operation of the on-board starter therefore requires only one storage battery. The function of the»glow-control«is based on the latest microprocessor technology in industrial quality and is designed for the deployment in methanol engines with 1, 2 or 4 cylinders with on-board starting systems. Technical data Input supply voltage: 8.4 12 Volt Plug voltage: 1.4 2.0 Volt 8 28 Dimensional drawing: Starter engine with gearbox Stock number 9570-01 and 9572/01 19,5 20 L= 52mm(9570-01) L= 60mm(9572-01) 36 Ø 30 36 15 Gas pressure springs: For general use in model making such as undercarriages, retractable propellers, canopies etc. Boreholes of 6.1 mm on both sides. 34 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 15 Ø 6 spring deflexion L

15 Solid tires/axles for Models Solid tires with GFRP-rims and Alhub with 6.1 mm boring (expandable to 8.1 mm). Today we introduce our new wheels programme that we developed according to your needs. By means of a complex tool development in co -operation with wellknown rubber and plastics processors we managed to improve the quality notably compared to the present solid rubber wheels. Larger rims support the tire in case of lateral strain in an optimal way so that even extreme crosswind landings can be absorbed easily. All sizes are now supplied with guide grooves to keep your model on track. FEMA wheels with glass fibre reinforced rims and aluminium hubs are designed to meet the highest demands and are suited for engine models as well as for large scale gliders. The wheels are extremely resilient and have ideal damping features. Even the load of the model weight for several hours in midsummer temperatures does not lead to the dreaded flat tire. Despite their extreme stability, the wheels are very light. With FEMA wheels you don t have to worry about inflating the valves. 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 9920/90... 90 mm...32 mm... 40 mm...95 gr...6,1 9920/100... 100 mm...36 mm... 40 mm...105 gr...6,1 9920/112... 112 mm...40 mm... 40 mm...135 gr...6,1 9920/127... 127 mm...44 mm... 44 mm... 175 gr...6,1 9920/140... 140 mm...48 mm... 44 mm... 220 gr...6,1 9920/152... 152 mm...50 mm... 44 mm...270 gr...8,1 9920/165... 165 mm...53 mm... 44 mm...310 gr...8,1 9920/178... 178 mm...56 mm... 44 mm...350 gr...8,1 *without Al-Hub Axles for models with engine 9940... 2 pair Tempering steel axles 6mm for models up to a weight of 12 kg. 9942... 2 pair 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 Dimensionchart/weight (Dimensions in mm) Typ A B C d1 d2 D1 D2 Weight 9940 85 68 13 6 M6 10 M10 55 gr. 9942 95 75 16 8 M8 12 M12 95 gr.

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.

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!

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

Retractable undercarriages Spare parts for retractable undercarriages M2 35 d 8,5 10 10 If functionality, operational security and quality are decisive points for your applications, then our control arm is the right choice. The control arms have an ideal holding force (without abrading a surface on the shaft) and can be positioned very sensitively. You can use clevis M3 or spherical head M2. Stock number 9890/30... control arm with 4 mm hole Stock number 9890/31...control arm with 5 mm hole Stock number 9890/32... control arm with 6 mm hole The retractable undercarriages of series 9800A and 9810A are shipped serially with the control arm. The retractable undercarriages of series 9820A and 9830A can be shipped with the control arm at an extra charge of 5.00. Z-shaped servo mount and angled clevis, suitable for all FEMA retractable undercarriages With the Z-shaped servo mount you can avoid the problem of an oblique linkage for extending and retracting the undercarriage. The servo can be mounted horizontally which allows for the smooth linear running of servo lever and gear lever. It is recommended to operate the servo with an amplitude of 180 and thus the angled clevis is the ideal completion. The Z-shaped servo mount includes all necessary bore holes for the assembly on the retractable undercarriage and the assembly of a standard servo. Technical data: W/H/L: = 60 x 50 x 20 mm. Weight: 10 gr. Material: aluminium powder-coated. Stock number 9890/60... Z-shaped servo mount, suitable for all standard servos Stock number 9890/62... Angled clevis with threaded rod M3

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 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 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 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 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 Tuning parts for retractable undercarriages 9890/60...Z-shaped servo mount, suitable for all standard servos 9890/62...Angled clevis with threaded rod M3 9890/64...L-shaped servo mount, suitable for all standard servos Böhler GmbH Obere Rebbergstr.11 D-77709 Wolfach Tel.07834/303 Fax 07834/47735 08/09/10

Retractable undercarriages Tuning parts for retractable undercarriages 9800/16...Axle with accessories 9810/16...Axle with accessories 9820/16...Axle with accessories 9830/16...Axle with accessories 9890/25...Wheel bracket made out of stainless steal (please specify the wheel diameter when placing your order) 9890/26...Control arm made from plastics for the series 9830A and 9820A 9890/30...Control arm made from aluminium for the series 9630A and 9820A 9890/31...Control arm made from aluminium for the series 9810A 9890/32...Control arm made from aluminium for the series 9800A Examples for the assembly Courtesy of the magazine»fmt - Bauen und Fliegen«, issue from March/April 2009, page 31. Author: Lothar Beyer Courtesy of the magazine»modell«, issue from July 2007, page 74. Author: Ralph Müller