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agran1021 · 11-18-2008, 04:16 PM

I have just built an Eco 8 and am having great difficulty with the setup. There's no one locally who flies heli's so perhaps someone on this forum has built one and can help.

Problem: I can't get the tail rotor to compensate for the torque of the main rotor. That is, it continues to spin counterclockwise as I apply more throttle and pitch. The tail rotor moves as far as possible to try to stop the spin, but it can't counteract the torque. I have the Purple Bull brushed motor with a 9.6v NiMH battery and the Ikarus mini gyro (the Hobby Lobby recommended setup). I'm using the mechanical mixer. Pitch is from +1 degree at zero throttle to 8 at full throttle. I've measured all of the linkages and they are within 0.1mm of the recommendations in the instructions. Originally I had the tail rotor backwards but have reversed it so that the Ikarus name on the blades is on the heli's right side.

This is such an old design, I'm sure it works. I just can't figure it out. Anyone have any ideas?

turkey999 · 01-11-2009, 07:15 PM

Hi,
I have had a couple of eco-8's flying, and one eco-8 royal still going. I haven't had that problem, but can suggest 1) Make sure the belt is tight enough and not slipping. 2)You can get different gears(different #teeth) for the tail rotor drive. One with fewer teeth will spin tail rotor faster. I have not used the mechanical mixer, but that is a separate problem. 120 deg swashplate from HL is way too expensive, one for t-rex 500 could be modified. THe stock plastic 120 deg swashplate with eco-8 royal breaks easily.

Good luck, Steve K.

Qema · 01-12-2009, 12:02 PM

does your links look like this ??

surfespacio · 11-14-2009, 03:39 PM

any of you guys have parts for this bird or know where to get any? i need a few things to try and get mine going by springtime!

thanks,

-Matt

Scott Seidler · 03-04-2010, 06:51 AM

I have a full unflown Eco8 heli thats partially assembled with upgrades, spares, original still wrapped blades, servos, Ikarus Gyro, etc etc etc.....
It more than you need to get flying less radio gear.
I dont need it and would really like to sell it.

Let me know if your interested.

My email is ScottSeidler@SecurityIntelligenceLLC.com
Thanks!

Scott

4n6days · 03-04-2010, 07:02 AM

Is your gyro direction reversed?

11-18-2008, 04:16 PM	#1 (permalink)
agran1021 Registered Users Join Date: Jul 2008	Ikarus Eco 8 Setup I have just built an Eco 8 and am having great difficulty with the setup. There's no one locally who flies heli's so perhaps someone on this forum has built one and can help. Problem: I can't get the tail rotor to compensate for the torque of the main rotor. That is, it continues to spin counterclockwise as I apply more throttle and pitch. The tail rotor moves as far as possible to try to stop the spin, but it can't counteract the torque. I have the Purple Bull brushed motor with a 9.6v NiMH battery and the Ikarus mini gyro (the Hobby Lobby recommended setup). I'm using the mechanical mixer. Pitch is from +1 degree at zero throttle to 8 at full throttle. I've measured all of the linkages and they are within 0.1mm of the recommendations in the instructions. Originally I had the tail rotor backwards but have reversed it so that the Ikarus name on the blades is on the heli's right side. This is such an old design, I'm sure it works. I just can't figure it out. Anyone have any ideas?

11-14-2009, 03:39 PM	#4 (permalink)
surfespacio Registered Users Join Date: Oct 2009	looking for eco8 parts any of you guys have parts for this bird or know where to get any? i need a few things to try and get mine going by springtime! thanks, -Matt

03-04-2010, 07:02 AM	#6 (permalink)
4n6days Registered Users Join Date: Jul 2009	Is your gyro direction reversed? __________________ "For in six days, the LORD made heaven and earth, the sea, and all that in them is" --Exodus 20:11

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01-11-2009, 07:15 PM	#2 (permalink)
turkey999 Registered Users Join Date: Sep 2008	Hi, I have had a couple of eco-8's flying, and one eco-8 royal still going. I haven't had that problem, but can suggest 1) Make sure the belt is tight enough and not slipping. 2)You can get different gears(different #teeth) for the tail rotor drive. One with fewer teeth will spin tail rotor faster. I have not used the mechanical mixer, but that is a separate problem. 120 deg swashplate from HL is way too expensive, one for t-rex 500 could be modified. THe stock plastic 120 deg swashplate with eco-8 royal breaks easily. Good luck, Steve K.

01-12-2009, 12:02 PM	#3 (permalink)
Qema Registered Users Join Date: Jan 2009	does your links look like this ??

03-04-2010, 06:51 AM	#5 (permalink)
Scott Seidler Registered Users Join Date: Mar 2010	I have a full unflown Eco8 heli thats partially assembled with upgrades, spares, original still wrapped blades, servos, Ikarus Gyro, etc etc etc..... It more than you need to get flying less radio gear. I dont need it and would really like to sell it. Let me know if your interested. My email is ScottSeidler@SecurityIntelligenceLLC.com Thanks! Scott

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