Grob G 120TP - Remote control toy ROBBE - Free user manual and instructions

USER MANUAL Grob G 120TP ROBBE

Building and Operating Instructions -Grob G 120TP Nano-Racer No.2598

Dear customer,

Congratulations on your choice of a factory-assembled model aircraft from the robbe Modellsport range. Many thanks for placing your trust in us.

The model can be ready for the air when you have completed just a few simple procedures. Please read right through these instructions and the separate information sheets before attempting to assemble and fly the model, as this will make it much easier to complete the tasks required.

Please study the illustrations and the brief instructions to obtain a clear understanding of the individual stages of construction. All parts must be trial-fitted "dry" (without glue) before you reach for the glue. Assign the individual components to the various stages of assembly.

The servos are already installed, and connected to the control surfaces.

The model

Like the full-size machine and our large Grob G120TP 1700 mm ARF model, this nano-model is extremely fast and fully aerobatic, while its broad speed range is also ideal for realistic flying in the scale style. The model's aerobatic repertoire can be expanded by installing the optional rudder servo and linkage. The aeroplane is based on a one-piece painted foam moulding incorporating fuselage and wings. The wing features a carbon fibre spar for additional strength, making it capable of withstanding extreme loads in racing and aerobatic flying.

We constantly strive to update our products to reflect the latest developments. You can find details of technical improvements, updates and revised documentation on the Internet by calling up the appropriate product description at our website: www.robbe.com.

Specification:

Total surface area approx.: 9 dm
All-up weight approx.: 370 g
Wing loading approx.: 43.3 g/dm
Length approx.: 660 mm
Wingspan approx. 735 mm
Scale: 1:14

RC functions:

Elevator, aileron, throttle, rudder (optional)

Notes regarding the radio control system:

For this model you require a radio control system with at least four channels.

The receiving system is powered by the speed controller's integral BEC system.

Set contents:

• Set of painted EPO foam components, with decals applied
  (fuselage / wing, fin, tailplane, fuselage hatch incl. cockpit)
  Painted plastic cowl
  Factory-fitted brushless motor and speed controller
• 5.5 × 4.5 propeller, spinner and driver
• 3 x servos installed
  Multi-lingual assembly instructions

Essential accessories:

Description Order No.

Adhesive: Robbe Speed Type 2 5063

Optional accessories:

Rudder upgrade kit for Nano-Racer 2600

Please see the robbe main catalogue for details of tools and accessories.

Servo leads with differing colour codes are used in the model:

Signal: white/orange

Positive wire: red / red

Negative wire: black / brown

Please bear this in mind when connecting or extending the leads. Before you check the model's working systems, set the control surfaces to neutral from the transmitter (transmitter sticks and trims central).

When you wish to fly the model always move the throttle stick to the "motor stopped" position before switching the transmitter on. Only then connect the battery. To switch off, first disconnect the flight pack from the speed controller, and only then switch the transmitter off. When installing or setting up the receiving system components, including the speed controller and motor, be sure to read and observe the instructions supplied with them. You should also read right through the instructions and safety information supplied with the battery pack and charger before using these items for the first time.

Preparing the glued joints:

Use 240-grit abrasive paper to sand the paint from all joint surfaces before applying the glue.

All directions, such as "right-hand", are as seen from the tail of the model, looking forward.

Replacement parts:

Order No. Description

25980001 Grob G 120TP Nano-Racer cowl

25980002 Grob G 120TP Nano-Racer linkage set

25980003 Grob G 120TP Nano-Racer spinner

25980004 Grob G 120TP Nano-Racer motor mount set

25980005 Grob G 120TP Nano-Racer canopy

25980006 Grob G 120TP Nano-Racer decals

Fig. 4

Glue the fin to the fuselage, taking care to set it exactly at right-angles to the tailplane (see Fig. 2).

Fig. 1

Fig. 3

Referring to Fig. 3, glue the horizontal strake to the fin, keeping it exactly central. The swept face of the strake faces aft.

• Glue the two dummy exhausts in the recesses on the underside of the fuselage (see also Fig. 5).

Fig. 6

• Position the airborne components such as the flight battery (Article No.: 6603 or 6605) and receiver as shown in Fig. 6; this will ensure that the model balances at the stated Centre of Gravity.

Fig. 7

• Glue the fuselage extension in the appropriate slot in the rear of the canopy (see also Fig. 8).

• The Centre of Gravity is located 40mm aft of the leading edge at the wing root.

Fig. 9

Fig. 10 (control surface travels)

- The control surface travels are measured at the inboard end of the control surface.
- The stated control travels are just a guide for the first few flights. Every pilot has to make fine adjustments to suit his personal flying style.

Expo settings

Elevator -40%; aileron -60%

• The Expo settings should also be adjusted to suit the pilot's preference.

Building and Operating Instructions -Grob G 120TP Nano-Racer No.2598

Routine pre-flight checks

Check the channel assignment at the receiver, and swap the plugs over if necessary.

• Set the transmitter sticks and trims to centre.
  The control surfaces should now also be at centre (neutral). Adjust the clevises if necessary.
• Make any fine corrections required at the transmitter.

• Check the direction of rotation of the servos.
• Stand behind the model. When you move the rudder stick to the right, the rudder (if fitted) should also deflect to the right.
• Pull the elevator stick back towards you, and the rear edge of the elevator should rise.
• When you move the aileron stick to the right, the trailing edge of the right aileron must rise, the left aileron fall.
• If any function works the wrong way round, correct it using your transmitter's servo reverse facility.
• Set the control surface travels to the stated values, referring to the radio control system instructions.

Checking the power system

Hold the model in such a way that the propeller is free to rotate. Caution: Whenever you are working on the power system (for installation, set-up or maintenance), keep well clear of the rotational plane of the propeller - injury hazard.
- Check the direction of rotation of the motor. The propeller must turn anti-clockwise when viewed from the front. If this is not the case, swap over two of the three power wires between the motor and the speed controller.
- After landing, and after every test-run, always disconnect the flight battery from the speed controller first, then switch the transmitter off.

Balancing the model

The Centre of Gravity (C.G.) is located 40mm aft of the leading edge at the wing root (see Fig. 9).
Support the model at the marked points and allow it to hang freely. Ideally the model will now balance level, with the nose inclined slightly down.
- Adjust the position of the flight battery if necessary.
- Mark the battery location in the fuselage, so that you can be confident of replacing it in the same position after removing it.

Operating the model

If you are using a robbe/Futaba radio control system please reverse the throttle channel before operating the model for the first time.

Test-flying, flying notes

• Read the sections in the Safety Notes entitled "Routine pre-flight checks" and "Flying the model" before attempting to fly the model for the first time.
• For your initial test-flight please wait for a day with no more than a gentle breeze.
• A good flying site consists of a large, flat, open grassy field, devoid of trees, fences, high-tension overhead cables etc.
• Repeat the check of all the working systems.
• The model is designed to be hand-launched.
• The model must always be launched directly into any wind.
• Ask an experienced modelling friend to hand-launch the aircraft for you. He should be capable of giving the model a reasonably strong, flat launch.
  With the motor running at full-throttle, give the aeroplane a firm launch directly into any breeze, with the fuselage and wings level.
• Keep the model flying straight and level at first; don't initiate a turn while it is still close to the ground.
• Adjust the control surface trims if necessary, so that the model files straight with a reasonable rate of climb "hands off".
• Check the model's response to control commands. You may need to increase or reduce the control surface travels after the first landing.
• Check the aeroplane's stalling speed at a safe height.
• Keep the model's speed well above the stall for the landing approach.
  If you needed to adjust the trims during the test-flight, correct the length of the appropriate pushrod once the model is back on the ground, then return the transmitter trims to centre so that full trim travel is available to both sides of neutral for subsequent flights.

Building and Operating Instructions -Grob G 120TP Nano-Racer No.2598

Be sure to read these Safety Notes before you operate your model. Always keep to the procedures and settings recommended in the instructions.

If you are operating a radio-controlled model aircraft, helicopter, car or boat for the first time, we recommend that you enlist an experienced modeller to help you.

Safety Notes

Radio-controlled models are not toys in the usual sense of the term. Young persons under fourteen years should only be allowed to operate them under the supervision of an adult.

Building and operating these models requires technical expertise, manual skills, a careful attitude and safety-conscious behaviour.

Errors, negligence and omissions in building or flying these models can result in serious personal injury and damage to property.

Since the manufacturer and vendor are not in a position to check that your models are built and operated correctly, all we can do is bring these hazards expressly to your attention. We deny all further liability.

Aircraft propellers, and all moving parts generally, constitute a constant injury hazard. It is essential to avoid touching such parts.

Please bear in mind that motors and speed controllers may become hot when operating. It is essential to avoid touching such parts.

Do not stand close to the hazard area around rotating parts when an electric motor is connected to the flight battery.

You must also take care to keep all other objects away from moving or rotating parts.

Observe the instructions provided by the battery manufacturer.

Overcharged or incorrectly charged batteries may explode. Take care to maintain correct polarity.

Notes on the use of dry cells:

Do not attempt to recharge dry cells, do not open them, and do not incinerate them. Remove exhausted dry cells from the transmitter after use. Escaped electrolyte may ruin the transmitter.

Ensure the equipment is protected from dust, dirt and moisture contamination. Do not subject the system to excessive heat, cold or vibration.

Use the recommended charger only, and charge the batteries only for the prescribed period.

Check your equipment for damage at regular intervals, and replace defective components with genuine spare parts.

Do not re-use any devices which have been damaged in a crash or by water, even when they have dried out again.

Send the equipment to the robbe Service Department for checking, or replace the parts in question.

Crash or water damage can result in concealed defects which may lead to failure in subsequent use.

Use only those components and accessories which we specifically recommend.

Do not carry out modifications to the radio control system components apart from those described in the instructions.

Operating the model

Caution - injury hazard:

Please keep your model aeroplane a safe distance away from you and others. Never fly over spectators, other pilots or yourself. Manoeuvres should always be carried out facing away from pilots and spectators.

• Never fly over spectators or other pilots, and safe distance from them at all times.
• Never endanger people or animals.
• Never fly close to high-tension overhead cables or residential areas.
• Do not operate your model in the vicinity of canal locks or open waterways.
• Do not operate your model from public roads, motorways, paths and squares etc.; use authorised model flying sites only.
• Never operate the model in stormy weather.

Never "point" the transmitter aerial straight at the model when operating it. The transmitter signal is at its weakest in this direction. It is always best to stand with the long side of the aerial angled towards the model.

Insurance

Ground-based models are usually covered by standard personal third-party insurance policies. In order to fly model aircraft you will need to extend the cover of your existing policy, or take out specific insurance.

Check your insurance policy (private third-party) and take out new cover where necessary.

Liability exclusion

robbe Modellsport is unable to ensure that you observe the assembly and operating instructions, or the conditions and methods used for installing, operating and maintaining the model components.

For this reason we accept no liability for loss, damage or costs which are due to the erroneous use and operation of our products, or are connected with such operation in any way.

Regardless of the legal argument employed, our obligation to pay compensation is limited to the invoice value of those robbe products directly involved in the event in which the damage occurred, unless otherwise prescribed by law. This does not apply if the company is deemed to have unlimited liability according to statutory regulation due to deliberate or gross negligence.

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Safety Notes

• Note the power-on sequence: always switch the transmitter on first, and then the receiver. Reverse the order when switching off.
• Observe the limits stated in the Specification.
• Maintain correct polarity in all connections.
• Take great care to avoid short-circuits.
  Install and protect the speed controller in such a way that it cannot come into contact with grease, oil or water.
• Ensure that air circulation is adequate.
• Keep well clear of the rotational plane of the propeller when the motor is running - injury hazard.

Guarantee

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During the guarantee period we will rectify any functional defects, production faults or material flaws at no cost to you. We will not accept any further claims, e.g. for consequential damage. Goods must be sent to us carriage-paid; we will pay return carriage costs. We will not accept any packages sent without pre-paid postage.

We accept no liability for transport damage, nor for the loss of your shipment. We recommend that you take out appropriate insurance. Send your device to the approved Service Centre in your country.

The following requirements must be fulfilled before we can process your guarantee claim:
- You must include proof of purchase (till receipt) with the returned product.
- You must have operated the product in accordance with the operating instructions.
- You must have used recommended power sources and genuine robbe accessories exclusively.
- There must be no damage present caused by moisture, unauthorised intervention, polarity reversal, overloading and mechanical stress.
- Please include a concise, accurate description of the fault to help us locate the problem.

Liability exclusion

robbe Modellport is unable to ensure that you observe the assembly and operating instructions, or the conditions and methods employed for installing, operating and maintaining the radio control system components. For this reason we accept no liability for loss, damage or costs which are due to the erroneous use and operation of our products, or are connected with such operation in any way. Regardless of the legal argument employed, our obligation to pay compensation is limited to the invoice value of those robbe products directly involved in the event in which the damage occurred, unless otherwise prescribed by law. This does not apply if the company is deemed to have unlimited liability according to statutory regulation due to deliberate or gross negligence.

robbe Modelsport GmbH & Co. KG hereby declares that this device conforms to the fundamental requirements and other relevant regulations of the corresponding EC Directive. You can read the original Conformity Declaration on the Internet at www.robbecom.com: click on the "Conformity Declaration" logo button which you will find next to the corresponding device description.

This symbol means that you should dispose of electrical and electronic equipment separately from the household waste when it reaches the end of its useful life.

Take your unwanted equipment to your local council collection point or recycling centre. This requirement applies to member countries of the European Union as well as other non-European countries with a separate waste collection system.