SO32 RC helicopter. It swings fore and aft while hovering in the air. If I fly forward and stop it accentuates the swing, hard to control. Same if I fly backwards, when I stop in the air there is a large swing for and aft and the aircraft plunges forward.
My landing gear is broken, have fixed it while waiting for a new set. I did it with light wood. Could it be too heavy? seems to me it is not much heavier than the original gear and nowhere near the total weight of the aircraft.
Also a very slight wobble in the whole chopper when in the air, but I can not detect a bend in one of the driveshafts. It spins very true when I look from above at idle speed on the ground.
Unfortunately during the learning phase we have had some hard crashes.
Thanks
I have figured it out. The for and aft swing is due to a balance problem. The aircraft needs to be in balance around the rotor shaft. Suspend it from the roof with 2 loops of fishing line placed equal distances from the centre on the balance arm. Swing the rotors one parallel with the body, one 90 degress to the body. The rod to the tail rotor should be level. I used split shot fishing weights clipped to the tail to level it out. Once you have rough balance hover it without engaging the tail rotor. If it flys forward you need more weight on the tail, if it flys backwards then less weight on the tail. I held the split shot in place with thermal glue, squeezind them onto the fin was not enough.
The rough vibration was due to the tail rod being loose. I could wiggle it. There is a screw underneath to tighten it, I also used a loop of 24 ga. wire looped around the rod and an the body, twisted tight to stop vibration.
Both problems fixed.I have figured it out. The for and aft swing is due to a balance problem. The aircraft needs to be in balance around the rotor shaft. Suspend it from the roof with 2 loops of fishing line placed equal distances from the centre on the balance arm. Swing the rotors one parallel with the body, one 90 degress to the body. The rod to the tail rotor should be level. I used split shot fishing weights clipped to the tail to level it out. Once you have rough balance hover it without engaging the tail rotor. If it flys forward you need more weight on the tail, if it flys backwards then less weight on the tail. I held the split shot in place with thermal glue, squeezind them onto the fin was not enough.
The rough vibration was due to the tail rod being loose. I could wiggle it. There is a screw underneath to tighten it, I also used a loop of 24 ga. wire looped around the rod and an the body, twisted tight to stop vibration.
Both problems fixed.
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? 4:22
https://www.youtube.com/watch?v=R65JJYwSH50
Jun 28, 2010 - Uploaded by R/C 101
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? 3:26
https://www.youtube.com/watch?v=Gxst73zE0VY
Jan 16, 2011 - Uploaded by Live2Fly94
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Air Hogs remote control aircraft are designed to be easy to fly and use, and rarely have flying issues. However, there are the occasional issues that the company can't really predict. Some Air Hogs helicopters, for example, have a hard time flying forward without some assistance. If you're having this problem with your helicopter, this can be annoying, but it is not the end of the world. There is as solution, and it's easier than you might think.For more information:
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Batteries are available online (amazon and many others) and change easily with only small screwdriver. Overcharging is not the issue. Nearly impossible with PCB (overcharge prevention circuit) hard wired into battery AND in charger. Problem is likely UNDERcharging, overDIScharging, or improper battery care. Battery MUST be allowed to cool 10 minutes after flying. Charge until light on charger doesn't get any brighter when helicopter is unplugged... light comes on (dim at first) well before full charge. 10 minute cool-down after charge also a MUST. And, most important, when flying, as soon as you are unable to maintain altitude, land helicopter and power it off. Li/Po batteries should never be fully drained. Even one full discharge can cripple or ruin entirely your helicopter's battery.
If its a Reflex twin rotor Heli use the trim wheel on top to counteract the spin and at least stabilize the craft at hover. Then use the right/left froward backward fans to control flight, (right joystick on the controller). These fans are not very powerful so don't expect alot from them other than turning the craft right left and reverse. Seems there is too much down draft from the rotors to effectively move the Heli forward. Not a real good design. The Sharpshooter is easier to fly but uses the batteries in the controller as a charger so they don't last real long.
I have figured it out. The for and aft swing is due to a balance problem. The aircraft needs to be in balance around the rotor shaft. Suspend it from the roof with 2 loops of fishing line placed equal distances from the centre on the balance arm. Swing the rotors one parallel with the body, one 90 degress to the body. The rod to the tail rotor should be level. I used split shot fishing weights clipped to the tail to level it out. Once you have rough balance hover it without engaging the tail rotor. If it flys forward you need more weight on the tail, if it flys backwards then less weight on the tail. I held the split shot in place with thermal glue, squeezind them onto the fin was not enough.
The rough vibration was due to the tail rod being loose. I could wiggle it. There is a screw underneath to tighten it, I also used a loop of 24 ga. wire looped around the rod and an the body, twisted tight to stop vibration.
Both problems fixed.
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