Tech Tip Categories:
Cars & Trucks
Airplanes
Helicopters
Boats
Mini-Z
dNaNo
Peak Racing
Rt246
|
Caliber 120 FAQ
Caliber 120
There are several characteristics on the Caliber 120 that you should be aware of. They are normal and can be improved if the following recommendations are followed. Read all of the following notes as they relate to each other. As a staring point it is important to keep in... (read more)
All Nexus Series - What is the maximum length blades I can use?
On any version of the Nexus whether it is the 30, 46 or Legato the maximum blade length that can be safely used without any tail blade interference is 535mm. ... (read more)
Caliber 5 - Clutch is slipping and does not engage at a low RPM
If you have flown the model for a while and the clutch has previously worked fine there is a good chance that the clutch lining is wearing out and needs to be replaced. If the clutch has always engaged at a higher RPM it is possible there is excessive... (read more)
Concept 30 - Tail pitch plate conversion
If you have the Concept 30DX or SE the original white plastic pitch plate is no longer in production. You can replace this part with CA3065. CA3065 threads directly on to the brass sleeve that was previously used on the original pitch plate. If the threads appear... (read more)
Can I buy individual control rods?
Kyosho only sells control rods as a package that includes all the rods for a specific assembly on the helicopter. If you want individual rods you can make your own. The process is quite simple and cost effective. This requires you to use a 2-56 die to... (read more)
Caliber 400 - Why is there a hole in the center of the head and axle?
There are 2 purposes for the hole in the axle of the Caliber 400 head. When installing and uninstalling the bolt that holds the blade grips on the axle you can use the hole to keep the axle from turning. You can insert a 1.5mm rod or bolt... (read more)
Caliber 400 - What pinion gears can I use?
The Caliber 400 uses a .4 module metric gear however the 64 pitch pinions that are available at most hobby shops will fit perfectly. Even though the 64 pitch is not metric the gear tooth is so close there is no issue with pre-mature wear or fit. The... (read more)
Caliber 400 - Motor is turning backwards
When using a brushless motor system there are 3 leads from the motor that connect to the speed control. If you find that the motor is turning backward it is necessary to reverse any of the 2 leads to change the direction of the motor. Even it the... (read more)
All Caliber Series - Clutch shaft removal
The easiest way to remove the clutch on the Caliber series helicopters is to first remove the clutch bell and reinstall the starter shaft screws tightly. This is important as you will use them as a removal device. Next remove the backing plate on the motor and place... (read more)
Caliber 5 - The drive belt is too loose, is this a problem?
The Caliber 5 drive belt does run loose and this will not cause any problem. The system is designed where the clutch bell keeps the drive belt from dropping down too far and the drive pulley keeps the belt from riding up too high. Some pilots may choose... (read more)
How do I set the pitch curve for the novice?
For any helicopter it is important to make sure that the pitch curve is set correctly to optimize performance. The first step for the proper setup of pitch is to determine the range that is needed for your skill level. For the beginner it is important to make... (read more)
Why is the tail is starting to wag but I didn't change anything?
Once the initial gyro settings have been made and the system is working properly there is typically a couple of things that will cause a change in performance and therefore allow the tail to start to wag. With long term use the tail rotor blade grip bearings can start... (read more)
M-24 - Servo gear set
If you have a stripped gear set on either the aileron or elevator the replacement gear set to be used is a Futaba S-3103. You will need to uninstall the control unit and remove the screws that hold it together. Once this is done you need to carefully split the... (read more)
Concept/Nexus - Main Gear backlash too loose
It is common with longer term use for the main gear to develop excessive backlash. When this happens it is possible for the bevel pinion gear to jump or skip teeth on the main gear. The reason this happens is there is a constant downward pressure on the one-way housing... (read more)
Caliber 400 - Fin buzzes at high RPM
If the fins are buzzing the tail rotor is out of balance. This condition can be caused by either a bent tail shaft or tail blades that are out of balance. First you need to inspect the tail shaft to determine if it is running true. If so then you... (read more)
Caliber 400 - Tail shakes in hover
There are different types of vibration in a helicopter. If the tail is shaking up and down in a hover this is a condition created by an imbalance in the main rotor system. It can be any component of the head that is not in proper balance. The easiest thing... (read more)
Caliber 5 - How can I get more steering rate?
The Caliber 5 is designed with adjustable ratio mixing arms. The part number CA5104 is shipped from the factory with the pivot ball attached to the inside hole. This typically will give a cyclic pitch change between 6 to 7 degrees of deflection at full stick. If the pivot ball... (read more)
Caliber 400 - Tail Shakes
If you are experiencing a tail shake it is being caused by either out of balance main rotor system or a bent main shaft. First you will need to measure the flybar to make sure it is centered in the head. You also need to make sure it is not... (read more)
Caliber M-24 - Can I use Lithium batteries or a different motor for better performance?
The Caliber M-24 is designed to use an 8-cell metal-hydride battery pack. The controller on the M-24 is capable of using different batteries however we recommend metal-hydride packs as they are more forgiving and easier to take care of. If the pilot chooses to use an alternate battery it is... (read more)
Caliber 30 or Caliber 5 - The clutch has spun off the crankshaft when I tried to start the engine
This problem can occur when the engine has fuel that has filled up the head and caused a fuel lock condition. In this case it is best to remove the glow plug and turn the engine over to clean out the fuel. In order to keep this condition from occurring... (read more)
Caliber 30 - The control rods for the elevator and pitch control are too short
The only reason this will occur is the levers are installed in the wrong mounting hole in the frames. There are 2 holes on each side frame that can be used for the pitch and elevator levers. The hole closest to the front is to used for the MMS mixing... (read more)
Caliber 30 - When I move the throttle stick the swashplate does not track straight up and down
The Caliber 30 can be built either using EMS or MMS. In the manual page 14 shows the assembly using EMS and page 15 show assembly using MMS. It is common for the first time builder to follow the instructions for EMS but not have the radio configured for this... (read more)
EP-M24 - Helicopter seems difficult to trim
This is a common statement from beginner pilots. When the helicopter is in ground effect the downwash of the blades causes turbulence that is inconsistent and therefore it is not possible to accurately trim the model. This is typical of any helicopter until you are out of ground effect. Ground... (read more)
EP-M24 - Tail drifts right when full power is applied
This is normal for the tail to drift to the right when full power is applied. If the battery is getting weak or you are towards the end of the battery capacity, this condition is worse. There is not any solution other than recharge or cycle the battery and if... (read more)
Concept 30 - DX/SE Tail Pitch Lever Conversion
Concept 30 DX/SE Tail Pitch plates are no longer available and can be replaced with part number H3123 which is the pitch plate set for the Concept 30 SRX. The brass sleeve that is used from the DX/SE will be used in the conversion. Once this is done all other... (read more)
Concept 30 - DX/SE Blade Grip Conversion
Concept 30 SE/DX blades are no longer available. These machines require an 8mm root and no manufacturer makes a blade with that root thickness anymore. The blades grips must be upgraded to the Concept SR blade grip. The part number that is needed to complete this conversion is H3114. All... (read more)
|
