Manual LOGO 14 - Mikado Model Helicopters GmbH · Manual LOGO 14 Carbon Page 10 ©Mikado Modellhubschrauber 2x M3 #2072 2x M3x8 #1915 #2499 3 Motor Installation 3.1 Motor Adaptor

© Mikado Modellhubschrauber, V2.0

www.mikado-heli.de

LOGO 14Carbon

Mikado Modellhubschrauber • Friedrich-Klausing-Straße 2 • 14469 Potsdam • GermanyPhone +49 (0)331 23749-0 • Fax +49 (0)331 23749-11 • www.mikado-heli.de

Manual

Manual LOGO 14 Carbon Page 2 ©Mikado Modellhubschrauber

Index

1 Main Frame ......................................... 51.1 Motorplate 51.2 Main Frame 61.3 Bearing Case 71.4 Mounts for Landing Bow 82 Landing Gear ..................................... 83 Motor Installation ............................. 103.1 Motor Adaptor Plate 103.2 Motor Attachment 114 Main Gear .......................................... 124.1 Main Gear Hub for 2-Pole Motors 124.2 Main Gear Hub for 4-10 Pole Motors 144.3 Adjusting Gear Backlash 165 Tail Rotor ............................................ 175.1 Tail Rotor Shaft 175.2 Vertical Fin 185.3 Tail Pitch Slider 195.4 Tail Rotor Lever 205.5 Tail Rotor Hub 216 Tail Boom ........................................... 236.1 Tail Boom Assembly 236.2 Tail Boom Holder 246.3 Tail Drive Pulley 256.4 Tail Control Rod 266.5 Installation 276.6 Tail Rotor Blades 276.7 Tail Boom Brace 287 Finished Main Frame & Tail Boom . 298 Preparation for Servo Installation .. 308.1 120° CCPM 308.2 Servo Arms 308.3 Servo Centering 318.4 Linkage 319 Servo Installation ............................. 329.1 Tail Rotor Servo 329.2 Aileron Servo right 339.3 Aileron Servo left + Elevator Servo 34

10 Canopy ............................................ 3610.1 Trimming and Taping 3610.2 Decals 3711 Swashplate ..................................... 3811.1 Swashplate Assembly 3811.2 Swashplate Guide 3912 Wash-Out ......................................... 4012.1 Assembly 4012.2 Installation 4113 Main Rotor Head ............................ 4213.1 Blade Grips 4213.2 Mixing Arms 4213.3 Yoke 4313.4 Seesaw 4413.5 Flybar Control Bridge 4513.6 Flybar 4613.7 Flybar Paddles 4713.8 Final Assembly 4813.9 Rotor Head Linkage 4914 RC Installation ................................ 5014.1 Battery 5014.2 Receiver, Gyro, Speed Controller 5115 RC Programming ........................... 5216 Final Pre-Flight Check................... 5816.1 Direction of Main and Tail Rotation 5816.2 Blade Tracking Adjustment 5817 Control Movements ....................... 5917.1 Pitch/Throttle 5917.2 Rudder 5917.3 Elevator 6017.4 Aileron 6018 Overview ........................................ 6118.1 Chassis 6118.2 Rotor Head 6218.3 Tail Boom/Tail Rotor 6319 Tuning/Accessories ....................... 64

All parts shown in the boxes are displayed in real size.


Safety InstructionsOPERATING YOUR MODEL SAFELY

Operate the helicopter in spacious areas with no people nearby.! Warning: Do NOT operate the helicopter in the following places and situations(or else you risk severe accidents):

in places where children gather or people pass throughin residential areas and parksindoors and in limited spacein windy weather or when there is any rain, snow, fog or other precipitationIf you do not observe these instructions you may be held reliable for personal injury or property damage!

Always check the R/C system prior to operating your helicopter.When the R/C system batteries get weaker, the operational range of the R/C system decreases. Note that youmay lose control of your model when operating it under such conditions.

Keep in mind that other people around you might also be operating a R/C model.Never use a frequency which someone else is using at the same time. Radio signals will be mixed and you willlose control of your model.

If the model shows irregular behavior, bring the model to a halt immediately. Turn off all power switches anddisconnect the batteries. Investigate the reason and fix the problem. Do not operate the model again as long as theproblem is not solved, as this may lead to further trouble and unforeseen accidents.

! Warning: In order to prevent accidents and personal injury, be sure to observe the following:

Before flying the helicopter, ensure that all screws are tightened. A single loose screw may cause a major accident.Replace all broken or defective parts with new ones, as damaged parts lead to crashes.Never approach a spinning rotor. Keep at least 10 meters/yards away from a spinning rotor blades.Do not touch the motor immediately after use. It may be hot enough to cause burns.Perform all necessary maintenance.

PRIOR TO ADJUSTING AND OPERATING YOUR MODEL, OBSERVE THE FOLLOWING

! Warning: Operate the helicopter only outdoors and out of people’s reach as the main rotor operates at high rpm!! Warning: While adjusting, stand at least 10 meters/yards away from the helicopter!

Novice R/C helicopter pilots should always seek advice from experienced pilots to obtain hints with assemblyand for pre-flight adjustments. Note that a badly assembled or insufficiently adjusted helicopter is a safety hazard!In the beginning, novice R/C helicopter pilots should always be assisted by an experienced pilot and never flyalone!Throttle channel should be in motor OFF position while powering up.When switching the R/C system ON or OFF, always proceed in the following order:

When switching ON:Position the throttle control stick (on transmitter) to a position where the LOGO 14 Carbon motor does not operate.Turn on the transmitter.Turn on the receiver.Connect the motor battery.Operate your model.

When switching OFF:Turn off the motor (move throttle control to a position where motor does not operate).Wait until the rotor head has stopped spinning.Disconnect the motor battery.Turn off receiver.Turn off transmitter.


Speed-controller

Tools for Assembly & R/C Equipment

Scissors

Rubber Hammer

Drill with1.5mm bit(.059 in)

Marker

Screwdrivers(plus and minus)

Hex Wrenches1.5/2.0/2.5/3.0 mm

(.055/.079/.098/.118 in)

Radio with Heli-Software

4x ServosReceiver Battery(>1,000 mAh)

Bat

tery

Pac

k

Receiver (Graupner DS 19 or SMC 19 SPCM)

Gyro (Futaba GY240 or GY401)

Fast Charger(Schulze isl 6-330d or isl 6-636+)

Motor + Speed Controller (check the Mikadowebpages for recommended motors)

Alle shown products are examples. You may use different brands.

Ball link pliers

Threadlock

BEC, replacesreceiver battery

Gre

ase

Pitch Gauge


#2379

1x 10x19x5 #1329

6x M3 #2072

1 Main Frame1.1 Motorplate

Bag 1 • Bag 10


#730

4x M3x10 #1953

2x M3x14 #1955

#710

#733

#703

#732

#737

#706

#741

#742

M3x14

1 Main Frame1.2 Main Frame

Bag 1 • Bag 4 • Bag 12

Note: Because the individual partsof the chassis must fit very tightly to-gether, they may be slightly difficultto assemble. The reason is that thefinished chassis of LOGO 24 will bevery rigid for optimal flying properties.Where necessary, please remove asmall amount of excess material atthe edges of braces #807 to #811with a file or a sharp knife.

Note: The mainframes have an inside andan outside surface! When assembling, thecountersinks in holes of the left and rightmainframes must point inwards.


#2380

1x 10x19x5 #1329

6x M3x10 #1953

3x 48 mm #716

2x 19 mm #2371

4x M3x22 #1916

#731

#718

#717

10x

M3x14

1 Main Frame

1.3 Bearing CaseBag 1 • Bag 10 • Bag 12

Note: The mainframes havean inside and an outsidesurface! When assembling,the countersunks in holes ofthe left and right mainframesmust point inward.

Note: The twocountersunks inthe battery platemust point up-ward.


#2495

#2775

4x M3x10 #1953

2x M3x12 #1954

2x M3x14 #19552x

50 mm #715

2x

44 mm #728

2x 4,8 mm #1574

#814

M3x14

M3x12

1 Main Frame1.4 Mounts for Landing Bow

Bag 1 • Bag 12

Align the skids and secure themwith superglue.

2 Landing GearBag 8


4x M3x12 #1954

4x M3 #2074

4x 3x7x0,5 #2012

2 Landing GearBag 8 • Bag 12


2x M3 #2072

2x M3x8 #1915#2499

3 Motor Installation3.1 Motor Adaptor Plate

Bag 1

Some electric motors (e.g. Kontro-nik, Plettenberg motors) are construc-ted such that they cannot be movedalong the motor plate. If you are usingone of these motors, please use themotor adaptor plate #2499. The plateis not needed for Hacker motors.

Please check from the Mikadowebsite which pinion works best withthe motorset you have (onwww.mikado-heli.com go to LOGO14 Carbon and click “Motorization”).When a wrong pinion is chosen, theperformance of your electric helicop-ter will deteriorate and the motor orspeed controller can be damaged.

Do not tighten the set screw fully untilthe final position of the pinion on themotor shaft is determined. This isdone after installing the main gear.

There are two options for attachingthe pinion:

1. For securing the pinion, you mayflatten the motor shaft where the setscrew meets the motor shaft - withoutmaking a flat surface on the motorshaft.

2. Alternatively, you may screw theset screw directly onto the motorshaft. For this it is required that theset screw has an appropriate rim forengaging the motorshaft (all Mikadopinions have this rim). Note, however,that after attaching the set screwonce, the rim becomes blunt and maynot be used again.

Pinion notincluded in kit.


2x M3x12 #1954

2x 3x7x0.5 #2012

3 Motor Installation3.2 Motor Attachment

Bag 1 • Bag 12

When installing the motor, tightenthe socket head cap screws onlyslightly, making sure that the motorcan still be moved on the motor pla-te.


4x M3x8 #1915

4x M3x14 #1913

1x

10x18x5.5 #738

1x 10x16x0.5 #2010

#2731

#2725

#2732

#2725

4 Main Gear4.1 Main Gear Hub for Hacker 2-Pole Motors

Bag 2

It is essential that the two gears areperfectly aligned. There is only oneposition which allows for this align-ment. In order to find the correct po-sition, you must proceed as follows:Place the gears on top of each otherand fasten them with two screws inopposite position. Now check thealignment of the teeth. If the teeth ofthe two gears are not perfectly alig-ned, turn the top gear 90 degrees andcheck again. When you have foundthe correct position, fasten all fourscrews. Very important: Do not fas-ten the screws too tightly, as this willwarp the gears. Any such distortionwould be seen in a gap between thegears. This has to be avoided.

For the double main gear, you mustuse special motor pinions (not inclu-ded in the kit):#3053 - 13 teeth, module (pitch) 0.5#3054 - 14 teeth, module (pitch) 0.5

apply grease


#2385

#3040

1x M2,5x8 #1940

1x M3x18#1965

1x M3 #2074

4 Main Gear4.1 Main Gear Hub for Hacker 2-Pole Motors

Bag 2


8x M3x8 #1915

1x

10x18x5.5 #738

1x 10x16x0.5 #2010

#2731

#3000

#2732

#2725

4 Main Gear4.2 Main Gear Hub for 4-10 Pole Motors

(Plettenberg, Kontronik, all outrunner motors)Bag 2

For the main gear with 138 teeth,module (pitch) 0.7, the following mo-tor pinions are available (not includedin the kit).#3010 - 10 teeth, module (pitch) 0.7#3011 - 11 teeth, module (pitch) 0.7#3012 - 13 teeth, module (pitch) 0.7#3013 - 14 teeth, module (pitch) 0.7#3014 - 15 teeth, module (pitch) 0.7#3015 - 16 teeth, module (pitch) 0.7#3017 - 17 teeth, module (pitch) 0.7#3018 - 18 teeth, module (pitch) 0.7

apply grease


1x M2,5x8 #1940

1x M3x18#1965

1x M3 #2074

#2385

#3040

4 Main Gear4.2 Main Gear Hub for 4-10 Pole Motors

(Plettenberg, Kontronik, all outrunner motors)Bag 2


4 Main Gear4.3 Adjusting Gear Backlash

The gear backlash must be adju-sted (see drawings). Excess back-lash can cause premature wear of themain gear and will lead to shorter flighttimes.

too much backlash correct backlash too little backlash


# 2442

#2465

#2475

#2466

#2442

#2444

1x 2x8mm #2468

2x 5x10x4 #2470

2x 5x10x0.1 #2004

5 Tail Rotor5.1 Tail Rotor Shaft

Bag 5 • Bag 10

Should you have difficulty mountingthe 2x8 mm pin, carefully tap it with arubber hammer, or use a vice. The5x10x4 bearings can also be moun-ted on the rotor shaft using a vice andtapping the shaft softly with a rubberhammer. If the tail rotor shaft showsaxial play after closing the two hal-ves of the tail rotor case, use one ortwo of the 5x10x0.1 washers whichare included in the bag.


#2493

2x

M3x25 #1958

1x M3x10 #1953

3x M3 #2074

2x 3x5x4 #924

5 Tail Rotor5.2 Vertical Fin

Bag 5 • Bag 12


#2455

#2452

2x 6x10x2,5 #1440

#3030

2x7mm

5 Tail Rotor5.3 Tail Pitch Slider

Bag 5 • Bag 10

It is important that the tail pitch pla-te #2450 is aligned properly on thecontrol sleeve #2455. In the case ofmisalignment, the control sleeve maybecome deformed.

The mounted tail pitch plate shouldbe able to move on the tail rotor shaftwith little resistance.


2x 3x6x2,5 #2330

1x M3x14 #1955

1x M2x8 #1902

1x #1570

1x 3x5x5 #2448

1x 3x5x0,5 #2002

#2449

5 Tail Rotor5.3 Tail Pitch Slider

Bag 5 • Bag 12

The mounted tail rotor lever shouldbe able to move with little resistance.

5.4 Tail Rotor LeverBag 5 • Bag 10 • Bag 12


#2462

#2458

2x M3x12 #1954

2x 3x5x2 #2463

4x 3x8x3 #2423

1x M3x3 #1920

5 Tail Rotor5.5 Tail Rotor HubBag 5 • Bag 10 • Bag 12


5 Tail Rotor5.5 Tail Rotor Hub

All movable parts of the tail rotorblade holders should be able to movewith little resistance. When there istoo much resistance, the tail rotor willnot react to subtle input and the gyro’smaximum sensitivity cannot be fullyexploited.


#2480

#2482

6 Tail Boom6.1 Tail Boom Assembly

Bag 6 • Bag 11

Note that the two tail rotor pushrodguides are different in height.

The tail boom has two round cut-outs on one end. These should be fit-ted into the matching shapes in thetail rotor case.

short

long


#2485

6 Tail Boom6.2 Tail Boom Holder

Bag 6

Turn the tail drive belt 90° degrees(clockwise).


#2728

1x 4x13x5 #937

1x 4x9x4 #2489

2x 4x8x1 #2013

1x 3x5 #1921

1x M3x18 #1965

1x M3 #2074

#2488

!

6 Tail Boom6.3 Tail Drive Pulley

Bag 6 • Bag 10 • Bag 12

Important: Check belt tensionprior to every flight. Incorrect belttension can cause disturbancesfor your model R/C system.Incorrect belt tension can lead toa situation where you lose controlof the tail rotor of your helicopter.

For tightening the belt, pull the tailboom holder toward the front. Belttension is fixed with the M3x18 so-cket head cap screw for tighteningthe tail boom holder to the tail boom.The belt should be tight. When pres-sing with your fingers, both sides ofthe belt should not come in contactwith each other.


#1560 #2483 (635 mm)

6 Tail Boom6.4 Tail Control Rod

Bag 11 • Bag 12

Screw the two 2 mm ball links ontothe control rods. Their exact positi-ons are of no importance at this point.The ball ends are attached to the ballsmore easily when the text on them ispointed away from the helicopter.


8x

M3x22 #1916

8x 3x7x0,5 #2012

2x 19 mm #2371

2x 26 mm #2371

2x M3x14 #1955

2x M3 #2074#2461

#719

#720

6 Tail Boom6.5 Installation

Bag 6 • Bag 12

6.5 Tail Rotor BladesBag 5 • Bag 12

Tighten the screws holding the tailrotor blades, but ensure that the bla-des move easily in the tail rotor hol-ders under centrifugal force.


2x M3x30 #1962

2x M3 #2074

4x 4,8 mm #15744x

M2,5x30 #2770

#2441

#2781

#722

#1565

6 Tail Boom6.7 Tail Boom Brace

Bag 6 • Beutel 12

5 min epoxy

The ball links should be screwedonto the control rod such that one isturned at 90 degrees with respect tothe other.


7 Finished Main Frame & Tail Boom


120°

1x M2x8 #19023x M2x10 #1903

7x M2 #2070

4x 4,8 #1570

14-15 mm.551-.591 in

20 mm.787 in

8 Preparation for Servo Installation8.1 120° CCPM

The swashplate in the LOGO 14Carbon is designed to be operatedby three servos. The transmitter pro-vides for electronic mixing.

8.2 Servo ArmsBag 1 • Bag 5 • Bag 12

Rudder Servo Elevator Servo Aileron Servo Aileron Servo


45 m

m (

1.77

1 in

)

39 m

m (

1.53

6 in

)

14 m

m(.

551

in)

#1586 #1586

#2770

8 Preparation for Servo Installation8.3 Servo Centering

Connect the servo wires to the re-ceiver and set all channels in yourtransmitter to neutral. Now attach theservo arms perpendicular to the ser-vos.

120° CCPM

Rudder ServoElevator ServoAileron Servo left Aileron Servo right

Linkage measurements for 3Dpitch range (-12° to +12°)Important: Remove bridge

8.4 LinkageBag 7 • Bag 12


4x M2,5x10 #1938

7x M2,5 #2071

4x

9 Servo Installation9.1 Tail Rotor Servo

Bag 1 • Bag 12

With LOGO 14 Carbon side-fra-mes you can use two different sizesof tail rotor servos. A larger standard-size tail rotor servo can be mountedto the left side-frame, a smaller miniservo is mounted to right side-frame.

For determining the appropriateposition for mounting the tail rotorservo, place the servo against thechassis and mark the holes for at-tachment with a pen or needle. Thendrill where you have made the mar-kings. The ball links are attachedmore easily when the text on them ispointed away from the helicopter.


4x M2,5x10 #1938

4x M2,5 #2071

4x M3x6 #1951

1x M3 #2074

3x 5x48mm #716

#736

4x

9 Servo Installation

9.2 Aileron Servo rightBag 1 • Bag 4 • Bag 12

Swashplate servo installation

When microservos(13 mm) are used, the li-nikages should be alig-ned as close as pos-sible to vertical.

When using larger ser-vos (15 mm) the linka-ges should be aligned asclose as possible to ver-tical or have the sameangle.

Incorrect! Incorrect!


8x M2,5x10 #1938

8x M2,5 #2071

#716

#7364x

4x

9 Servo Installation

9.3 Aileron Servo left + Elevator ServoBag 1 • Bag 4 • Bag 12


4x M3x6 #1951

1x M3 #2074

9 Servo InstallationBag 1 • Bag 12


2x M3x10 #1910

2x M3 #2074

2x 4x11x5mm #2503

#743

#729

10 Canopy10.1 Mounting

Bag 1

The canopy does not yet have anyholes for attaching it to the helicop-ter. In order to fit the canopy properlyto your model, please proceed as fol-lows: First, use rod no. 743 for mar-king where the holes will be cut out.Push the rod through the mainframe,as shown in the picture. Then positi-on the canopy exactly like you wantit to be attached to your helicopter.The lower end of the canopy will al-most touch the tail boom. Close thecanopy with tape, letting the two hal-ves overlap slightly.

Now apply light pressure to thecanopy in the area of the two ends ofthe rod. In this way you will obtainround marks just where you need todrill the holes for attaching the cano-py. Drill two holes with 8mm diame-ter each. After drilling, place a cano-py fixing ring no. 2503 into each hole.


#3064

10 Canopy

10.2 Decals

10.1 MountingBag 1

Slide the lower part of the canopyat the bottom of the heli between themainframe and the landing bow.

For closing the backs of the cano-py properly, attach the velcro tape tothe overlapping area.


#1004

#997

#1005

#2364

11 Swashplate11.1 Swashplate Assembly

Bag 3Secure all pivot bolts with threadlock.Important: Tighten the pivot boltscarefully. Do not overtighten them, asthey will break off.


#856

#855

#2383

11 Swashplate11.2 Swashplate Guide

Bag 1


2x 2x8mm #9802x M2x8 #1902

2x Ø4,8 mm #1570

4x 3x7x3 #930

2x 3x5x2,1 #2463

2x M3x14 #1955

2x 3x5x0,5 #2002

� �

� �

� � �

#979#981

#972

#1570

12 Wash-Out12.1 Assembly

Bag 3 • Bag 10 • Bag 12

The Y-rods #981 must be able tomove easily on the wash-out.


12 Wash-Out Hub12.2 Installation

The wash-out hub must be able tomove up/down easily on the rotorshaft.


4x 8x16x5 #954

4x 3x7x3 #930

2x 3x5x12 #3090

4x 4,8 #15704x M2x8 #1902

2x

M3x35 #1961

2x M3 Stopp #2074

#915

2x

#3082

2x

2x

2x

13 Main Rotor Head13.1 Blade Grips

Bag 7 • Bag 10

13.2 Mixing ArmsBag 7 • Bag 10 • Bag 12


#845

4x 7x3 mm #951

2x 8x11x1 mm #952

2x 11,5x15,8x0,8 mm

#841

2x 8x16 #840

2x 5,3x15 #1982

2x

M5x12 #1980

#910

#1982

13 Main Rotor Head13.3 Yoke, Spindle Shaft

Bag 7 • Bag 10

largeinner Ø

apply grease

smallinner Ø

Tuning: #3092 extra harddampening, not included

#2756 regular dampening,included in the kit


#935

#939

2x 5x13x5 #725

2x 4x10x4 #726

4x M2x8 #19022x M2x3 #1900

13 Main Rotor Head13.4 Seesaw

Bag 7 • Bag 10 • Bag 12


#935

6x M2x10 #1939

4x M2 #2070

#713

13 Main Rotor Head

13.5 Flybar Control BridgeBag 7

Notice: The four M2 x 8 screwsare tightened more easily whena little bit of grease is applied.


4x M3x3 #1920

A

B

A=B

#723

#3093

#965

13 Main Rotor Head13.6 Flybar

Bag 7


A=B

A

B

0° 0°

#2360

#712

13 Main Rotor Head13.7 Flybar Paddles

Bag 7


2x

M4x35 #1974

2x M4 #2074

2x 2x30 mm #912

1x M3x18#1965

1x M3 #2072

13.8 Final AssemblyBag 7 • Bag 12

13 Main Rotor Head


2x M2x12 #1942

2x 4,8 #15712x 2x4,5x0,5 #2018

13 Main Rotor Head13.9 Rotor Head Linkage

Next mount the length-adjusted fly-bar control linkages. The ball links areattached to the balls more easily whenthe text on them is pointed away fromthe helicopter.

Use a pair of ball link pliers, if avai-lable.


6x M3x10 #1910

6x M3 #2074

3x 3x5x4 #924

#739#739

#2425 (Ø 40 mm)

#3055 (Ø 60 mm)

14 RC Installation14.1 Battery

Bag 1 • Bag 4

Front attachment of battery

Use cable tie straps to simplify re-moval of battery fixing rings.

If you are using taller accu packs,you need battery fixing rings with lar-ger diameter: #3068


14 RC Installation14.2 Receiver, Gyro, Speed Controller

Speed Controller

Receiver

Gyro


15 RC Programming120° Swashplate Mixing (120° CCPM)The LOGO 14 Carbon swashplate is designed to be controlled via electronic CCPM. Thus the corectcontrol inputs of the three swashplate servos are automatically mixed by the R/C transmitter. If you havenever programmed 120° CCPM before, please read this introductory text carefully.

Collective (Pitch)Pitch function is used to control the lift or sink of the helicopter. When pitch input is given, all three swash-plate servos travel together in the same direction and the same amount. As a result the swash-platemoves up or down on an even level.

Aileron (Roll)Aileron (roll) is used to control the helicopter’s movements around its longitudinal axis. When aileron(roll) input is given, the two roll servos (in the front of the swashplate) travel in opposite directions. As aresult the swash-plate tilts to the right or to the left.

Roll to the right Roll to the right (view from rear)

Minimum Pitch Maximum Pitch


15 RC ProgrammingElevator (Tilt)For tilting the helicopter, use the elevator function. For tilting forward, the two aileron servos move down-ward and the backward elevator servo moves upward. The elevator servo moves twice as much as thetwo aileron servos.

Elevator forward Elevator forward (view from side)

Programming 120° CCPMAs the programming procedure varies with different types of R/C systems, it is necessary for you to referto the instruction manual of your R/C system. Here are only a few general guidelines which apply to mostsystems.

Servo Centering with Sub-Trim FunctionAs indicated in the above sections on mounting the servos, it is important that the servo arms are exactlycentered. You should use the servo sub-trim function of your R/C system for this purpose.

Activating 120° CCPMLikely, the 120° CCPM function is initially disabled in your R/C transmitter software and needs to beseparately activated. Please refer to your R/C system manual, where you will also find information onwhich channels should be used for the elevator servo and the two roll servos. It is important that you stickwith the requirements stated in the manual. Otherwise the 120° CCPM will not function properly.

Your R/C may support various different CCPM mixings. For LOGO 14 Carbon choose the 120° mixingwith two roll servos in the front and one elevator servo in the back.

Use the relevant menus for setting the mixing proportions for roll, elevator and pitch functions. Begin bysetting the mix values to 50% each. Higher mix values give higher servo travel for that function This canhave the unwanted result that the swashplate reaches its mechanical limits and causes damage to theservos or rods or to the swashplate.

If necessary, you may use the CCPM menu to reverse the direction of the function. This is necessary, forexample, if the swashplate tilts to the wrong side or the pitch function is inverted.The menu for reversing servo functions can be used for reversing the movements of individual servoarms, but not for reversing the entire control function and of all the involved servos.


15 RC ProgrammingServo TravelIt may be the case that all swash-plate servos do not travel the same distance at maximum deflection.Even small differences between the 3 servos can prevent the swash-plate from being level duringcollective pitch inputs and cause the heli to drift.

In order to correct such servo travel differences, you must increase or decrease the servo travel settingaccordingly. Use the menu ATV for adjusting the end points, if necessary. Do not get this menu mixed upwith Dual/Rate. (Dual/Rate menu allows using multiple servo travel ranges and toggling between themduring flight.)

Example:If during maximum pitch the elevator servo travel is slightly smaller than travel of the two aileron servos,then the swash-plate will be tilted backwards, causing the heli also to drift backwards. In this case youshould increase the travel of the elevator servo.

Setting Pitch ValuesPlease choose from two different pitch settings, depending on your flying style. The two settings areillustrated below. The standard range is for beginners and for pilots who will do some aerobatic flightwithout extended periods of inverted flight.

The final pitch values must be tested during test flying. Once set, the values will work with the rotorblades you used. In case you change over to a different set of rotor blades, the pitch values will have tobe adjusted to the properties (size, profile etc.) of the new set.

Increase servo travel ofelevator servo on one side

All servos travel the samedistance at maximum deflection


0°

0°

0°

15 RC Programming

Pitch Values

Maximum PitchMinimum Pitch 0° Pitch

If you are an experienced pilot and plan on flying inverted, select the 3D settings:

For setting the respective pitch values, please use a pitch gauge. The values for minimum and maximumcan be specified in the menus of the transmitter.

Application Low Pitch Stick Centered High. Pitch

3D – 10º bis – 12º 0º 11º to 12º

Application Low Pitch Hovering (Stick Centered) High Pitch

Standard – 3º 7º to 8º 11º to 12º

The center position of the sticks in your R/C radio corresponds to 0° pitch of the rotor blades. At 0° pitch,all levers (servo arms, washout lever, mixing arms) should be in horizontal position. At 0° pitch, theswashplate is in center position, allowing the same travel in upward (positive pitch) and downward(negative pitch) direction. This setting results in a linear pitch curve, which is ideal for 3D-style flying.Pilots who wish to fly with less negative pitch should reduce the pitch curve to approx. -3° pitch. Note thatwith this latter set-up the sticks are not at center position for hovering.


15 RC ProgrammingAileron and Elevator Travel

The travel range of the aileron and elevator servos are limited by the swash-plate’s mechanical limits.Please take care that the swash-plate does not hit the maximum of its travel. This can have the unwantedresult that the swashplate reaches its mechanical limits and causes damage to the servos or rods to theswash-plate itself.If you desire more agility for your helicopter, use lighter flybar paddles.

Tail rotor settings

When the servo arm of the tail rotor servo is in the center, the tail rotor lever and the servo arm should beperpendicular with respect to each other. The tail rotor pitch lever should never reach its mechanicallimits.

In case the servo travel is too large, you have the following options for correcting this:1. Move the ball end of the tail rotor servo closer to the center of the servo arm.2. Reduce the servo travel in your R/C system using ATV.3. Reduce the servo travel in your gyro (not all gyros have this option).

In case the servo travel is too small, you have the following options for correcting this:1. Move the ball end of the tail rotor servo further away from the center of the servo arm.2. Increase the servo travel in your R/C system using ATV.3. Increase the servo travel in your gyro (not all gyros have this option).

Ensure that the tail rotor servo turns in the correct direction. If necessary, reverse the direction of the tailrotor servo function in your R/C system.

Revo-Mix/Gyro

It is necessary to compensate for the torque created by the motor during flight (but not during autorotation).This compensation is done by adjusting the tail rotor pitch. There are two options for achieving this:

1. Using normal gyro modePlease refer to your R/C system manual for activating the revolution mixing function and for setting allparameters correctly. Final settings should be trimmed during test flights.

Adjust the tail rotor linkage inlength such that the tail rotor servoarm and the tail rotor lever are at90 with respect to each other.All parts serving the tail rotormovements must move smoothly.When there is too much resis-tance, the tail rotor will not reactto subtle input and the gyro’smaximum sensitivity cannot befully exploited.


15 RC Programming

2. Using a gyro in Heading-Hold modeThe Heading-Hold gyro mode compensates automatically the deviation caused by the motor torque.Therefore, if Heading-Hold mode is used, revo-mix should not be programmed additionally.

Important: Check to ensure that the tail rotor assembly moves smoothly and without play. Otherwise thegyro and servo will not compensate the torque properly.

Rotor Head RPM control

LOGO 14 is designed to be flown with constant rotor head speed. Irrespective of flight attitude (ascending,descending, hovering), rotor speed should be kept roughly constant. There are two different methods forobtaining constant rotor speed:

Rotor speed control with speed controllerAll speed controllers can be used in this mode. With speed controller it is necessary to program a throttlecurve (see manual). Programming of throttle curve requires that you associate a given throttle value witha particular pitch value. In this way, the rotor speed is held almost constant with all pitch values.

Throttle curve programming depends on the type and quality of the R/C system. Simpler, inexpensive R/C systems designed for model helicopters usually have a 3-point throttle curve. High-end R/C systemstypically have throttle curves with more configurable points (up to 9). Fine tuning of throttle curves will benecessary during test flights.

Note that an incorrectly programmed throttle curve reduces performance and can lead to overheating ofthe motor and the speed controller.

Rotor speed control with governor (RPM regulation mode)A speed controller with governor function keeps the rotor head speed constant, independent of flightattitude (ascending, descending, hovering). It is not necessary to program a throttle curve. The headspeed is simply controlled on the radio transmitter using a switch or lever.Important:1) Governor mode must be activated in the speed controller first (see manual of the speed controller)2) In governor mode, the servo wire of the speed controller must not be connected to the throttle channel.Use a free channel in your radio to connect the servo wire.


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16 Final Pre-Flight Check16.1 Direction of Main and Tail Rotation

Prior to the first flight the trackingof the rotor blades needs to be ad-justed. If the tracking is not adjustedproperly, this can cause vibrationsand lead to instability of the helicop-ter.

Apply colored tape to the tip of oneof the rotor blades. Apply tape of adifferent color to the tip of the otherrotor blade. When you are ready foryour first flight, increase the rotorspeed to just before lift-off. From asafe distance, check the rotor diskat eye-level. Very likely, one rotor bla-de will move below the other.

Make a note of the color of the low-moving blade. Then turn off the mo-tor and wait until the rotor head hascome to a halt. Lengthen the linkage(1) of the rotor blade which was mo-ving low by unscrewing the ball linkssomewhat. Repeat the checking pro-cedure until both rotor blades moveon the same level.

Prior to the first flight double-checkthe direction of rotation of the mainrotor head and the tail rotor.

16.2 Blade Tracking Adjustment

OKIncorrect


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17 Control Movements17.1 Pitch/Throttle

17.2 Rudder

You may want to program a diffe-rent stick mode than the one shown.Please check which stick mode isused by other local pilots. Use thesame one, so fellow pilots can assistyou on the field.

Important: Flying a model helicop-ter requires many hours of training.During your first attempts, while fa-miliarizing yourself with the differentcontrol movements, keep the heli-copter low above the ground (just afew centimeters/a couple of inches.)


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17 Control Movements17.3 Elevator

17.4 Aileron


18 Overview18.1 Chassis


18 Overview18.2 Rotor Head


18.3 Tail Boom/Tail Rotor

18 Overview


19 Tuning/Accessories

Carbon tail boom #829Alu washout unit #973 Tail rotor hub withthrustbearings #3052

Alu frame for bearing case #3066 Alu frame for tail boom #3067

Carbon tail rotor upgradeset #3062

Alu motorplate #3061

Tail boom for 600 mmrotor blades #2479

Heavy stabilizer paddles #3063

Carbon rotor blades 550 mm #1049 Carbon rotor blades 580 mm #1047 Carbon rotor blades 600 mm #1050


19 Tuning/Accessories

gear muffler #3065 Servo frame pre-drilled forJR/Graupner DS3728/DS342

#3057

Servo frame pre-drilled forFutaba S9650 digital #3058

Servo frame, not pre-drilledfor mini servos #3060

Servo frame pre-drilled forJR/Graupner DS361/DS368 #3059

Design & Rendering: Mehran Mahinpour Tirooni • Layout & Realisation: CDT-Berlin

www.mikado-heli.de

Documents

Manual LOGO 14 - Mikado Model Helicopters GmbH · Manual LOGO 14 Carbon Page 10 ©Mikado Modellhubschrauber 2x M3 #2072 2x M3x8 #1915 #2499 3 Motor Installation 3.1 Motor Adaptor