CCPM Helicopter Setup For all Quick Helicopters |
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General Instead of giving you the exact length of each linkage rod we will explain to you what you are trying to achieve. This is the same for all Quick helicopters. Another thing worth mentioning is that all controls on our helicopters are leading edge controlled. We have three such controls on our helicopter and they are, Main blades, Tail blade and flybar control arms. For example the main blade pitch arms should be mounted so they are in front of the blades in the direction of travel, clockwise if you look at the helicopter from above, see picture 4. As help during this setup your radio manual will be needed. |
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Swashplate Instead of giving you the exact length of each linkage rod we will explain to you what you are trying to achieve. This is the same for all Quick helicopters. Step 1 First set your radio up so that all servos are moving in the right direction and adjust all travel values to 100%. If you have a radio with Swash mixing values set those to 50% (Pitch, Aileron and Elevator). Now center both radio sticks (including “throttle”) and center all trim and sub-trim values. When this is done turn your receiver pack on. Now mount the servo arms at a 90deg angle towards the linkage rod. In our non push pull helis this will be horizontal. Use the mounting position on the servo arm that will be closest to 90deg, not all servos will line up 100% correct. If they are visible off from the 90deg position the use the sub-trim function in your radio for fine tuning, do not use regular trim for this, see picture 1. Now you have a good start and the rest of the setup will become easier. Step 2 Connecting the Swashplate at the right distance. This is done by moving your Pitch (throttle) stick all the way down, see picture 2. When the servos are in this position adjust the length of the linkage rods so the Swashplate is located towards the bottom, but still leaves enough room for left/right (aileron) and front/back (elevator) travel. During such travel, portions of the Swashplate will move below the Swashplate position archived during Pitch full down radio stick position. So make sure you leave enough room for this extra travel, see picture 2 for recommended height. Also make sure that all 3 linkage rods between the servo arms and the Swashplate are the same, so the Swashplate is level. It should not tilt in any direction; unless your right radio stick is moved. If it lilts, and all linage rods are the same length, then go back to step one and make sure your three servo arms have the same neutral position (horizontal on non push pull helis). Step 3 Connecting the Washout assembly. Connect the fixed length plastic “A” arms to the Swashplate, connect to the two longer pivot studs, if all four are the same length then any two will do. The next step is to adjust the length of the linkage rod between the Washout Arm and the Flybar connection point. Turn your radio and receiver back on and center both sticks. Now adjust the length of the flybar linkage so the washout arms are level (horizontal), see picture 1. Also make sure your flybar arms and flybar-paddles are level (horizontal), when adjusting the linkage. After the length is adjusted make sure that you have free travel in all directions and stick positions. When the Pitch stick is all the way up it should look like picture 3. As you can see there is still plenty of room for aileron and elevator travel. Now adjust the Washout Anti-rotation pin height so the pin is still in the guide slot of the washout base during all travel positions. For the Left/Right Washout Anti-rotation position, line the attachment point of the plastic washout “A” arm on the Swashplate up with flybar linkage connection point. The imaginary line between these points should be vertical. Now you are almost done, only one set of links left, and the length of those links will be depending on your desired setup whether it's Aerobatic or normal flying. Please refer to the Pith travel setup table for this final link length. |
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Tail First adjust the servo arm position like you did with the swash, make sure your trim and sub-trim values are centered. Attach the servo arm so it's 90deg to the tail pushrod (vertical). Now adjust your two plastic ball ends, for the push rod, so they are screwed on about half way onto the threaded pushrod guide end piece. This was you have max amount of adjustment available in both direction. When this is done cut the carbon pushrod to a length that will achieve about 3 deg of positive pith on your tail blades, when the servo is in its neutral (vertical) position. When this is done glue the two end pieces on to the pushrod with CA glue, don't forget to insert the pushrod guides first. When this is done you should have 3 deg of positive tail blade pitch. Use the outer holed on the tail blade grips for ball link attachment (on our larger machines with longer tail output shaft this is not critical). The tail should spin counter clockwise looking at the right side of the helicopter with the nose to your right and tail to your left. See pictures 5-8. |
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Throttle The throttle cure will be affected by several conditions; some of them are, motor choice, blades choice, elevation, temperature, muffler, helicopter weight and type of helicopter. So in order to explain this I will explain what you are looking for. Your goal is to achieve a constant headspeed once the helicopter is airborne. If you ad pitch (climb) you need to ad power (throttle) to compensate for the added resistance a higher blade pitch creates. If during climb your headspeed drops, then you need to add throttle to that particular stick position, and reversed if you have an increase in rpm. You should always have 100% throttle when the collective (pitch) stick is moved all the way up. If during max climb out you experience an increase in headspeed then you need to give the blades a higher pitch, do not try to adjust the max climb rpm by reducing throttle. It need to be left at 100%, if you do not leave it there you will not be able to achieve max power. There are other ways of achieving this by using cyclic mixing, however we will stay away from this for now. Follow the pitch guidelines in the table above, and if you need more pitch at max power because the rpm is increasing, then ad pitch. 10deg is just a guideline and will work in most setups, but a powerful motor or a light helicopter might need more. For rpm adjustment during anything other than full stick deflection you should use the throttle. A short recap, adjust throttle to adjust rpm during anything other than full collective. At full collective adjust the pitch. See the Throttle table for general setup. |
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Final words These are guidelines and will get you going but might not be 100% accurate in regards to all helicopters. Especially the throttle curve table should be considered initial guidelines. As mentioned before it's greatly affected by your equipment. As you become more familiar and proficient with your helicopter you can change the pitch and throttle curves to your liking. |
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