Hey Rob! Just a little something right off the bat. My name is Tony, not Toni. Toni is a girls name lmao.
And Rob, I don't care (we don't care) what you are flying as long as you are flying! That is what matters! I still fly clones, in fact, I have the HK450GT and it is/was one of my favorite helicopters. I say was, because I had a bad crash which needed a rekit. I say is because Paulster2 got out of the hobby and sent me his brand new kit! Still need to put that one in the air though.
Regarding your question, it is likely your head speed is too low. I remember having to fly mine at rather high head speeds to get it to fly anything close to correctly. Is there a solution to this issue? No, not really. I'm running an Align head on my heli (it's pretty much an SE V2 now with all of the Align parts on it) and if I go too low on the head speed, it does that minor toilet bowl wobble. Kind of irritating, but has never caused a crash as of yet.
Best bet is to raise your head speed until it stops. That is what I would do.
Hi again Tony, Tony with a -Y-...….. Hey, I think you're right, I've seen your videos and you don't look like no chick. It was late, he he hee.....
Anyway I had a calm afternoon today so I flew 2 packs. Ah yes, a higher head speed makes a difference.
It still bobs but only a little.
Here's something I've been thinking about.
I have not flown idle up in a long time, only FM0 because I only have a small back yard, and I ain't been to the airfield in a long time. I did recently fix two problems I had with my gyro. The first was with the Futaba GY520. After many years of flawless service it began to drift a little. Futaba said, "that shouldn't be and I should return it for inspection.
After going through 3 units I gave up on the Futaba gyro which I loved so much.
Next up is the Spartan Quark gyro. This one locks solid in flight, no tail drift at all...
Here's the little problem I had with this great gyro.
After landing I noticed the LED status indicator blinking an error code. It was just telling me my tail rotor wasn't centered. even after centering it, it just kept blinking the error code; hummm… Again she flies good with no lateral drift. I talked to Spartan and they told me to reset the trim and sub trim to zero then rebind it to my radio. BAM!! problem solved! I finally have a gyro without any funky error codes, hurray!
With all that said, I've only been flying FM0 and the rotor blades were tracking perfect. I noticed now there's about 3/4 of an inch of space between the two blade tips and that's pretty much the time the bobbing started.
Question: can bad tracking cause a pitching or bobbing problem like that?
Also I have a Align AP800 digital pitch gauge that I used to setup the head. Using this gauge it's clear there's a lot of Slop or play in the head. But what is the average center? How do I set the head so the blades come back into track without messing something else up? Know what I mean?
Oh hey,, I'm currently working on my 1982 Honda Accord 2 door hatch back 5 speed. Much work to be done on the body, head and carb but that's a story for another day, WHEW!
See you on the flight line,
Rob...
