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hi danny i seen on heli proz web site that jr does not recomend 8411@8411sa servos in helis is horizon still upgradeing to 8311 at no charge .and how long does it take to get them back .please let me know the address to send them to .i have these in my vigor and dont want to fly it till they get changed dont want to take any chances thanks ray

dsnyder

That is correct, we do not recommend the 8411/8411SA for helicopter applications. Yes, we are still doing the update to the 8311 for helicopter users. Right now we are holding for motors to update them, as soon as we receive the motors we will get them out as quickly as possible. Send them to the address below, and also state if you want us to just check over the existing gear train, or swap the gear train to the all nylon gear train of the 8311. If you have any further questions please feel free to contact one of our techs at 877-504-0233.

Horizon Service Center
Attn: 8411 update
4105 Fieldstone Rd
Champaign IL 61822