Re: [RCSE] Constant trim drift with new radio set
What brand servos are you using? A lot of us here in NZ are having this exact problem. I'm pretty sure it's not the Rx as some use Futaba, some JR, some PCM, some FM. The one thing in common is that all the servos have blue cases... I have 4 hitec HS85MG servos in the wings, and two hitec HS85BB servos in the fuse to drive the V-tail via dubro cables. Any chance that your flaps have some slop in the linkages? I am assuming that they are gap sealed with tape? On launch its quite possible that your servos do no thave sufficient torque to maintain the flap as you set it. This kit (Sierra 2.5) uses the hitec universal housings, (short round cylinders that insert into cylindrical wing cavities)...the linkage on the wings is very short (about 3 inches)... and there's no slop... HS85MG's are supposed to be reasonably strong... RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED]
Re: [RCSE] Constant trim drift with new radio set
Jeff Reid wrote: I just got my first full-house glider, a Hobby Shack Sierra 2.5, it's flying OK, but when I first start a session I have to keep sub-trimming one or two out of the six servos, usually the flaps, in order to get them "re-centered". Hi Jeff, I'd put money on the servos if all linkage and the servos are fixed solidly. I fly a 9Z with the 148 receivers. In my 2Meter Sisu I have HS85's on the flaps and the subtrimming is a constant task. Although they seem to be strong and fairly reliable I don't think they are as good as the JR 341/351 or some of the others. I don't have the problem with my JR servos or Volz. Darwin N. Barrie Scottsdale AZ RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED]
Re: [RCSE] Constant trim drift with new radio set
Im having this excact problem with my HS85MG servos. Great servos for the buck, but theire accuracy is "what you pay for". The best way to reduce the problem is to make the linkages so that you use the hole (or at least as much as possible) of the servo travel to get youre preferred throw. This makes the problem smaller, but I have to adjust the center pos on mine each time I go flying. Regards Kjelli From: Jeff Reid [EMAIL PROTECTED] To: [EMAIL PROTECTED] Subject: Re: [RCSE] Constant trim drift with new radio set Date: Thu, 30 Mar 2000 20:01:13 -0800 What brand servos are you using? A lot of us here in NZ are having this exact problem. I'm pretty sure it's not the Rx as some use Futaba, some JR, some PCM, some FM. The one thing in common is that all the servos have blue cases... I have 4 hitec HS85MG servos in the wings, and two hitec HS85BB servos in the fuse to drive the V-tail via dubro cables. Any chance that your flaps have some slop in the linkages? I am assuming that they are gap sealed with tape? On launch its quite possible that your servos do no thave sufficient torque to maintain the flap as you set it. This kit (Sierra 2.5) uses the hitec universal housings, (short round cylinders that insert into cylindrical wing cavities)...the linkage on the wings is very short (about 3 inches)... and there's no slop... HS85MG's are supposed to be reasonably strong... RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED] __ Get Your Private, Free Email at http://www.hotmail.com RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED]
Re: [RCSE] Constant trim drift with new radio set
In a message dated 3/31/00 12:30:09 AM Central Standard Time, [EMAIL PROTECTED] writes: Im having this excact problem with my HS85MG servos. Great servos for the buck, but theire accuracy is "what you pay for". I have to disagree, I have no less than 12 Hs-85s in service (about half metal gear) for about a year and a half withou ever having this trouble. I fly them in everything from electrics to Scale to TD ships without any problems. Kristopher RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED]
Re: [RCSE] Constant trim drift with new radio set
Then maybe you got a good "batch" of them. In our club we have around 50 of these servos (as I know of), some got the problem, some don´t. We have just accepted this for a fact with these servos. And use them for smaller planes and 1,5m slopeplanes. Use the whole servotravel and the problem is minimal. Put som Zap in those linkages to remove slop. Most of us in our club have the same TXs and RXs. Fact is, cheap servos are cheap for a reason. Kjelli. From: [EMAIL PROTECTED] To: [EMAIL PROTECTED] Subject: Re: [RCSE] Constant trim drift with new radio set Date: Fri, 31 Mar 2000 01:38:14 EST In a message dated 3/31/00 12:30:09 AM Central Standard Time, [EMAIL PROTECTED] writes: Im having this excact problem with my HS85MG servos. Great servos for the buck, but theire accuracy is "what you pay for". I have to disagree, I have no less than 12 Hs-85s in service (about half metal gear) for about a year and a half withou ever having this trouble. I fly them in everything from electrics to Scale to TD ships without any problems. Kristopher RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED] __ Get Your Private, Free Email at http://www.hotmail.com RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED]
