E-flight
04-10-2007 | 10:26 AM
#1
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From: Coon Rapids,
MN
E-flight
I have e-flight heli I flew it acouple of times in my basement but the last time I hit a chair the to blade came off when i re installed it and tried to fly it again all it will do is go in a circle on the ground can anybody tell me what to do to correct this issue I'm new at heli's. Thanks
04-10-2007 | 12:39 PM
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From: Maineville,
OH
RE: E-flight
The reason it is spinning is that you do not have the reverse torque to counter the main blade spinning. IE if you have 2 rotors the top is not spinning as fast as the other one (one of the blades spins the opposite way)/check your motors/verify the bottom gear is level with the pinion that drives it(if you pull up on the flybar and it moves at all the gear is probably out of align with the pinion.
If you have a single rotor with tail rotor, the tail motor/connections to the tail blade need to be checked.
The only other thing I can think of is the pitch of one or both of the blades is too high or low. Ie one blade is \ and the other is -- one has tons of torque the other has none. On the other side if both blades or one blade is too low then you'll never get off the ground.
BUT
As the other guy said, you need to tell us what model you have so to better isolate the issue. E-Flite makes many models. We're looking for CX/CX2/CP/CP Pro or other.
If you have a single rotor with tail rotor, the tail motor/connections to the tail blade need to be checked.
The only other thing I can think of is the pitch of one or both of the blades is too high or low. Ie one blade is \ and the other is -- one has tons of torque the other has none. On the other side if both blades or one blade is too low then you'll never get off the ground.
BUT
As the other guy said, you need to tell us what model you have so to better isolate the issue. E-Flite makes many models. We're looking for CX/CX2/CP/CP Pro or other.
04-14-2007 | 10:39 AM
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From: Maineville,
OH
RE: E-flight
OK there's a few things to check on a CX.
1. Check the linkages on the lower head make sure the metal or plastic nubs sticking out are inside the linkages. The lower head is actually 2 pieces not just 1 sometimes the screw loosens and the lower head moves a little bit and the nubs pop out of the linkages.
2. Verify the top head does not move up and down when you pull up on the flybar, this indicates the pinion and gear below the chopper are not in full alignment.
3. Try to see which blade is spinning slower if at all possible to isolate futher which blade is having issues.
4. Check your motors by unplugging (note the old location and cable orientation) one of the blades and throttling about 3/4 up, see if the blade is wobbly, slow,etc...
5. Repeat for other motor.
6. Replace motor if bad, maybe replace both at this point.
7. Look for extreme vibration, could be bent shaft. Look at all pitch linkages verify they are are attached. Check your flybar to top blade linkage and make sure the head head has not come off.
8. Check the servos do they move up down when you give input.
9. Verify that you do not have full proportional set on the reciever, this should not affect actual flight, but may help explain the spinning. You could have a mix of issues, set this back to 50% and begin troubleshooting this.
10. Check the pitch linkages to verify they are not too long/too short. One blade may have too much pitch.
11. Check the swash plate does it move other than up/down left right on the shaft, it should not spin.
12. Remove the blades and verify the nubs are still there that hold the blades on, these are easily broken on the stock plastic heads.
I'd say the best course if this doesn't help is taking it to the LHS for help, they'll be more than happy to help, especially if you at least buy some blades or something.
1. Check the linkages on the lower head make sure the metal or plastic nubs sticking out are inside the linkages. The lower head is actually 2 pieces not just 1 sometimes the screw loosens and the lower head moves a little bit and the nubs pop out of the linkages.
2. Verify the top head does not move up and down when you pull up on the flybar, this indicates the pinion and gear below the chopper are not in full alignment.
3. Try to see which blade is spinning slower if at all possible to isolate futher which blade is having issues.
4. Check your motors by unplugging (note the old location and cable orientation) one of the blades and throttling about 3/4 up, see if the blade is wobbly, slow,etc...
5. Repeat for other motor.
6. Replace motor if bad, maybe replace both at this point.
7. Look for extreme vibration, could be bent shaft. Look at all pitch linkages verify they are are attached. Check your flybar to top blade linkage and make sure the head head has not come off.
8. Check the servos do they move up down when you give input.
9. Verify that you do not have full proportional set on the reciever, this should not affect actual flight, but may help explain the spinning. You could have a mix of issues, set this back to 50% and begin troubleshooting this.
10. Check the pitch linkages to verify they are not too long/too short. One blade may have too much pitch.
11. Check the swash plate does it move other than up/down left right on the shaft, it should not spin.
12. Remove the blades and verify the nubs are still there that hold the blades on, these are easily broken on the stock plastic heads.
I'd say the best course if this doesn't help is taking it to the LHS for help, they'll be more than happy to help, especially if you at least buy some blades or something.
