howdy yall, I had 3 (three) problems preventing me from continuing on and once again they were of an electronic nature. One was that I could hear a grinding, slipping noise everytime that I would operate the ballast tank servo. This I correctly assumed was the internal gears of that servo slipping. Also everytime you would operate that servo the sternplane servo would jitter uncontrolably back and forth. If you were operating the motors for propulsion at the same time they would cut out. Not happy with current events I set out to fix it. Mind you it took a little time but we finally got it. You see the fine speed control that I installed, although a good controller, has a weak BEC circuit. So when the stern plane servo jittered back and forth in concert with the use of the ballast servo , it was too much for the BEC circuit and the speed control would momentarily cut out. The ballast tank servo is a HITEK HS-81. In this servo they sacrificed efficiency for power as it pulls 800 ma while a standard servo like a Futaba 3003 only pulls 300ma. Well the servo needed to be changed anyway so I set out to do just that.
Here you see the offending Hitek HS-81 servo. I dislike Hitek as you can probably tell.
And here is its replacement. surprise, surprise it looks identical. It probably is made by the same people with just a different label.Now getting the old one out wasnt so bad , but getting the new one in was going to be a trip.
This is the d&e 3" mod 2 and the servo is a long way inside.
As you can see my hand is too big to get inside for proper placement of the new servo, so I will have to bring out a special tool for this job.
Its a little hand and it belongs to " Nathan " Oh , Let me put a face to the name.
I had to bribe him to get him to help me, you know, food , clothing , shelter. Ok now that that was done the next step was to install the new BEC.
You see it here face up
And now face down
And here it is installed next to the Sabertooth speed control that I keep raving about. Both are Dimmension Engineering products.
There are OLD pilots and there are BOLD pilots but there are very few OLD BOLD pilots. MAG