Question about E-Flite Rc Helicopter Eflite Blade Mcx 2 Landing Skid Sets

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This regards my blade mcx2 helicopter... the heli always wants to fly in a toilet bowl pattern when hovering no matter how the trims are set..... i loosened the flybar retaining screw as much as possible and this is no help???????

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Posted on Jan 02, 2017

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SOURCE: heli max hicro helicopter just keeps spinning in circles

Make sure you used the right blades, the top and bottom blades are different parts and if you try to replace an upper blade with a lower blade it will mess up the flight. The two sets of blades are reversed, the leading edge is on the opposite side because they spin in opposite directions.

If you are sure you have the correct blades, try to eliminate vibrations, especially in the upper rotor. Vibrations can throw off the gyro sensor and cause the helicopter to spin. If it isn't vibrating then you need to adjust the trim. If it is just a slight spin, you can try using the horizontal trim adjustment on the left stick. If this is not able to correct the spin, set the horizontal trim on the left stick to center and then remove the plastic canopy. On the circuit board you will see two screw adjustments labeled "SENS" and "SCALE". First, draw a mark on both of them with a marker making sure to touch both the screw and the plastic or board. This mark will be used to reset the knobs to their original positions if you mess up. The "SENS" (sensitivity) knob adjusts how hard the helicopter responds to the gyro. The "SCALE" (rotor scale) adjusts the balance between the two rotors. If it is a smooth rotation (as opposed to a skittish, jumpy, or erratic rotation), you need to adjust the SCALE knob as one rotor is consistently faster than the other. On the other hand, if it is erratic and jumpy, randomly spinning in quick bursts, you should adjust the SENS knob. Erratic spinning is a result of the gyro detecting vibrations and overcompensating, throwing the helicopter in a circle. Play with these knobs, try just slight adjustments and keep going until it flies right. Have common sense, don't turn the knobs too far at once, just small adjustments will make it easier. Also if turning the knob one direction makes it worse, go the other direction. If you turn the SCALE knob too much you may lose lifting power because it will reduce the maximum power of one of the motors.

Posted on Jun 02, 2009

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SOURCE: My Havoc Heli is really hard to control and I need help.

You have to keep tapping the right trim button. Keep tapping it until it stops spinning. If the spinning stops and it just turns, Use the the left right moving analog un til it flies straight.

Posted on Jun 30, 2009

  • 1 Answer

SOURCE: crashed blade 400 repaired it unsure of servo settings helicopter tilts forward and tends to spin around

dude is your swash plate levle if it is not it will cause your heli to drift
or if not go on youtube and reset your dx6i settings

Posted on Sep 29, 2009

Bruce Boogie
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SOURCE: i have a helix 360.

Probably need a gentle bend back to its original position. Can you look at a friends or a shop one to see exactly what it should look like before a crash? Crashes usually bend something. Good luck.

Posted on Feb 13, 2011

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SOURCE: My new Syma S107 flies in a circle when hovering.

You will need this:

The problem usually is caused because plastic is bended over, or metal pin holding the balance bar is inserted badly and it damaged main rotor head (which is on the picture above).

Posted on Apr 09, 2011

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Tail rotor blade is bent and helicopter wont fly forward or backwards

Fixing Your RC Helicopter - The Basics + Tips / Tricks ...

? 3:26
Jan 16, 2011 - Uploaded by Live2Fly94
i have a heli and the tail rotor will spin right but not left .... im having problems with my silverlit nano copter the tail ...

Frequently Asked Questions - RC Helicopter Wiki
Probably the best way to learn to fly is to find a group of like minded people locally and ask their advice. ... The tail rotor should rotate so that the blades come 'up' towards the front of the heli. ... My helicopter won't stop spinning! ... still flying awesome but now tail vibrate and it issues backward forward. what should i do ?

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Helicopter not stable

Hi, I had a toilet bowl effect after changing the blades on my s107g. After making sure the shaft was seated properly, I simply adjusted the tension on the screws holding the blades in position and after a bit of trial and error tightening and loosening: it's as good as new!

Jan 21, 2013 | SYMA Toys industrial New Syma S107 Radio...

1 Answer

My helicopter will not hover!

If I understand what you're describing, the heli will fly properly at the start of each flight then becomes non-responsive and crashes. When you begin again, the same thing happens.

If that's correct, then it sounds to me like the heli is flying out of range of the transmitter. Check the batteries in the transmitter. If the batteries are ok, then check the distance to be sure you're staying within range. If you are within range, are you remembering to turn on the transmitter before connecting the heli battery? Did you properly bind the heli to the transmitter? Any other flyers in the area that could be causing interference? Power lines nearby?

Another thing, if it does fly out of range, and if your heli is properly trimmed, it should stop and hover. If it's not doing that, then check that your controls are in the proper position before connecting the battery.

Hope this helps.

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Aug 08, 2012 | Align T-rex 100x Microhelicopter Super...

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My S107 does not hover very well. It moves in a large circle on its own. It isn't the trim as it doesn't spin around the axis of the rotor. It points in the same direction but slowly moves left, back,...

The upper shaft 'T' head has a broken pin in it (the part that holds the blades. You can flip the heli upside down and slightly rotate the blade housing back and forth and IT SHOULDN'T do that. Another way to instantly identify it is dislocate the rotor head links and the upper blade housing should instantly separate) It's made of plastic.

Anyway, It's also called the "T.B.E." Toilet Bowl Effect. It's not 'really' what's taking place, it's move of a cyclic issue but the effect looks like it's swirling in a toilet bowl... You need to replace the inner shaft basically on the upper rotor. They cost anywhere from $4-7.00 bucks. It took me about 2 days of researching and purchasing another one to finally figure it out. There was another website that says the balance bar is it or the gyro has gone bad; this simply isn't true.


Jan 05, 2011 | SYMA Toys industrial New Syma S107 Radio...

1 Answer

My son's helicopter just spins around and won't lift up anymore. It has been sitting for about a month, but worked fine before that. Any solutions? Could the blades have been bent? They don't look like...

replace batteries with new ones and then you let it spin while you trim it out by pushing rotor button ,for heli that spins clockwise push trim button on left side and a heli that spins counter clockwise push trim button on right side continue pushing the corrective button until spining slows and eventually your sons heli will fly straight again these instructions are in the owners manual

Nov 28, 2010 | Air Hogs Havoc Heli Helicopters

1 Answer

My helicopter wont fly the main propellers on top of the helicopter stopped working

either stripped the main gear inside the heli or the main blades where they slide on the shaft. you should be able to buy a replacement set of blades. try that and see if it'll fly.

Apr 01, 2010 | Air Hogs Havoc Heli Helicopters

1 Answer

How do i fly my spin master air hog rc helicopter all it does is go in circles

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.

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1 Answer

Will not stop spinnig to the left

The heli will do that if you hover less than 1meter from the floor ! or you may need to adjust the swash plate screws Look at them very carefully and draw a diagram if you remove a screw and replace screw into another hole , in case you want to put it back as it was?,Also remove two of those little [8]shaped hooks that tie the blades to the main shaft. Remove one from the top A set of blades and one from the Lower B set of blades You dont need to have all four connected at once.If you click on this link it has the complete operating manual of your apache model in Pdf form (U Will need to download Adobe reader)

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3 Answers

Heli max hicro helicopter just keeps spinning in circles

Spinning is caused by one of the main propellers rotating faster than the other. If both propellers are secured tightly to their drive shafts, the spin control knob on the remote control can be used to stop the spin. However, if one prop is slipping with respect to the other, the spin control knob will not fix the problem.
I've found that the set screws holding the propellers to the drive shafts tend to loosen after a while. If one prop is a bit loose and the other is tight, the relative slippage will cause the helicopter to spin.
To check, turn off helicopter power and manually rotate each propeller separately, watching the nylon gears in the body. If the propeller is moving and its drive shaft gear isn't, the propeller is slipping because its set screws are not applying enough pressure on the propeller's drive shaft.
Carefully tighten the set screw and the problem should be fixed. DON'T OVERTIGHTEN, or the plastic threads for the set screw will be stripped and the propeller assembly will be ruined.

Apr 10, 2009 | Max Heli- Axe CX Micro Electric Rc Mini...

1 Answer

My heli wont hover, takes a large spiral downward, always to left

You either need to charge the battery, or just keep tapping the r trim button.

Mar 06, 2009 | Air Hogs Havoc Heli Helicopters

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