That could be. All will be told when I look with the scope. The bec is running on 15 volts putting out 6 volts and it's a Castle 10 amp BEC. It still could be what you say. The weird thing is it only happens on channel 3. It's like the collector on the output transistor is weak. I wish I had a schematic. No chance of that unless I decide to trace it out and I'm not that energetic. It wouldn't help anyway. I'll take a look at the BEC later.
ChopDrifter
Member
This is true, it's not just satellites, I've seen other systems have a brown out. Best to have a cap for insurance. Not all Power trains are the same.
It's a known mini vbar thang.
ChopDrifter
Member
How did you go with this gyro? Some say there are QC issues. So it's a hit or miss. You can get one to work or you can't. Easy to use if it works well.
ChopDrifter
Member
I finally got back to my heli today and still have this tail problem to solve. I decided to upload two pictures of the tail pitch control arm at its maximum throws. Does this look normal to you? It looks very short to me, and compared to my trex clone it's about half of the throw.
Tony
Staff member
It almost looks like the plastic links are a little short. This will increase blade pitch for nose left, but reduce it for nose right where you need it. With the longer links, you will be able to keep pitch on the blades so counter the main rotor and have the same throw right and left.
What kit is this? Can you post a link?
What kit is this? Can you post a link?
Do you mean the plastic links between the pitch slider and the blade grips? I have to admit they do look kindof small. This is the Gartt 450l kit direct from Gartt. You probably already know this but it's supposed to be identical to the HK Assault heli. I looked at the exploded diagram for the HK model and the links look very similar. So do you think the pitch arm throw looks less then usual? I guess it's almost 45 degrees but it's very difficult to get a protractor in there to measure it. I have the ball on the servo arm in the inner most hole. I'm also using the shortest arm. It still doesn't leave much travel at the servo reducing the servo's resolution. I don't understand why it would designed that way. I would think you would want as much resolution from the servo as you can get.
Okay I'm going to do exactly that. I'll just play with the servo arm position until I get the throws as close to equal as I can and see how it flies. I really don't understand using so little of the servo's potential. It's probably less than half. My guess is you're right and it will fly just fine. Now to come up with a really good weather prayer. Thanks for the help.
Smoggie
Well-Known Member
Looks ok to me. You need a bit more pitch for nose right because the tail is having to work against reaction torque from the main rotor. Looks like they have designed this differential into the linkage which is standard on many Trex tails.
Tony.. the pictures are looking from below, so it's showing more nose right pitch than nose left.
Tony.. the pictures are looking from below, so it's showing more nose right pitch than nose left.