Throtle Curve = 75-75-75-75-75 (vid)

[LockMD]

Okay here it is, yes the yo-yo's are intentional to show ya the motor is not decreasing/increasing. Same lazy dog hehe. Way easier to handle in wind especially coming down from a punch out. But as you'll see at the end, a little harder to spot land. That is a 17" X 17" peice of drywall incase you wondered.


n-zjrEBPExE

[skigolfmike]

Well, your flying is getting better. Getting a little braver too I see.

I do not see how you can possibly like that throttle curve. Your motor is bogging really bad on the punch out. if you are trying to get constant head speed, that is not the way to do it. Your motor even bogged a little at lift off.

I'll explain. At 0* pitch you have the least amount of drag on the motor. As you add pitch, you add drag and you need more power to maintain your rpm. The trick is to get the throttle and pitch curves to match up enough so your rpm stays fairly constant. All that you are doing is bogging the motor at full pitch because the motor isn't increasing power like it needs to.

If you like the feel in hover of that, try this: 0-65-75-85-100

[LockMD]

Well, your flying is getting better. Getting a little braver too I see.

I do not see how you can possibly like that throttle curve. Your motor is bogging really bad on the punch out. if you are trying to get constant head speed, that is not the way to do it. Your motor even bogged a little at lift off.

I'll explain. At 0* pitch you have the least amount of drag on the motor. As you add pitch, you add drag and you need more power to maintain your rpm. The trick is to get the throttle and pitch curves to match up enough so your rpm stays fairly constant. All that you are doing is bogging the motor at full pitch because the motor isn't increasing power like it needs to.

If you like the feel in hover of that, try this: 0-65-75-85-100


I will try that curve soon, I had the idea a while back and was too chicken to test it, then I saw a Finless video so I did it. My main reason for doing it is: While on a windy day at high altitudes its really hard to bring her down, I can but its not pretty. So I thought with a constant headspeed it would handle winds and come down easier and I was right.

I think Finless Bob had his set for 75% and 85% for idle up.

[joediamond]

In the Finless video with the flat throttle curves wasn't he setting up an ESC with a governor?

With a non-governing ESC there isn't any way you are going to get a constant headspeed with a flat throttle curve. With the motor power constant as soon as you increase the pitch on the blade the RPM is going to decrease due to the increased load.

[skigolfmike]

In the Finless video with the flat throttle curves wasn't he setting up an ESC with a governor?

With a non-governing ESC there isn't any way you are going to get a constant headspeed with a flat throttle curve. With the motor power constant as soon as you increase the pitch on the blade the RPM is going to decrease due to the increased load.

Exactly! If you have an Phoenix ESC with a governor and you are in governor mode, then the throttle curve is flat, just like Finless showed. Stock ESC does not have a governor mode, so you really can't run a flat curve like that. Maybe you can in idle-up 100-100-100-100-100 and hope the head doesn't blow up.:wow2:

[LockMD]

Exactly! If you have an Phoenix ESC with a governor and you are in governor mode, then the throttle curve is flat, just like Finless showed. Stock ESC does not have a governor mode, so you really can't run a flat curve like that. Maybe you can in idle-up 100-100-100-100-100 and hope the head doesn't blow up.:wow2:


LOL yup that is the one, he was setting up an esc with governor.....well it still feels way more stable in winds.

So I have an 85A esc I am putting into my 600 and it has a governor option in the programming. With that setup, my theory will work better?

[skigolfmike]

IMNSHO, I think in the long run the governor setup will be more stable. On initial setup I would not use governor mode though because that would make it very hard to set your gyro correctly. For example, too high a governor gain can cause tail kicks and too low can cause oscillations. Plus, it's easier to dial you heli in one step at time. Once you get the tail dialed in, then you can try governor mode. If the tail does something funny at that point, you know it's the governor.

Have fun.

Got more pics of your 600?

[LockMD]

okay thanks will setup WITHOUT governor until its stable, no more pics :( cant beleive how long this is taking me! well, I guess going slow and triple checking everything will pay off in the long run. At least it sounds good LOL

[HeliMix]

Cool vid Lock, thanks for sharing.

So that is what the 400 looks like flying. Mine is still sitting on my fish tank looking pretty. LOL

Was that a full battery run?

[LockMD]

Thanks. that was the first run like that I timed it for 5 min flight and I forgot to check where the battery was (how much it put back in) I'll have to monitor it next time to see how much more time I can get.

[eugenefelisco]

Very nice Larry. Oh I wish I can do that hover. Well I'm in chest and eye level now. I will try that curve that Skigolfmike is saying maybe I can get rid of the yo-yo effect.

Have fun hovering.

[LockMD]

skigolfmike,

I tried your throtle curve last night it was all fine until........coming down from a punchout it's very unstable which is the reason I thought of a steady curve. So are you saying if I leave it like that the motor will have a shorter life?

[skigolfmike]

No - has nothing to do with motor life.

How fast are you trying to come down from punch-outs? If you are in normal mode, I wouldn't go much below 1/2 stick to come down. Maybe you should try doing punch-outs in idle-up using a V-curve.

I'm flying in idle-up more often, especially since I'm doing loops, rolls and flips now.

[LockMD]

I'm flying in idle-up more often, especially since I'm doing loops, rolls and flips now.


uuuuhhh ah! duh! yup yup yup idle up mode would solve my feeling too light.

Loops, rolls, flips? I am jealous still only do them on the sim.

Can you post some videos of them, that would be way cool. I saw Sparx's vids but he is a pro (well looks like it anyhow) to be able to watch a noob's transfermation might boost my confidence up a tad.

[skigolfmike]

Who you callin' a newb?;) LOL

Not quite a newb, I had a Kalt Enforcer (30 sized heli) back in the early 90s. Did loops rolls and stall turns with it. It was just a matter of time. The biggest transition for me is the change to the HH gyros. Much better in hover, but there's more flying the tail in forward flight than I remember. What I can say for sure is my B400 flies better than the Kalt Enforcer ever did.

[LockMD]

Sorry hehe - I ASS-u-MEd you were just learning like me. LOL




Edit: have you heard from Sokal lately, I lost his # Do you have it? maybe pm to me?

[skigolfmike]

Just yankin' your chain. It's been long enough since I flew helis before that sometimes I feel like a newb.

[LockMD]

did it again last night (no vid) but I flew 5 mins with my old setup 0-40-70-85-100 and then 5 mins with 75-75-75-75-75 (it was pretty windy) and the later setup was WAY more stable.

gonna start doing idle up this weekend, now crashes will get more expensive ;)

[skigolfmike]

Just make sure you can know where throttle hold is and you can get to it quick.

Why not try 75-75-75-87.5-100. At least then your punchouts won't bog so much.:lol:

[LockMD]

Just make sure you can know where throttle hold is and you can get to it quick.

Why not try 75-75-75-87.5-100. At least then your punchouts won't bog so much.:lol:


Good idea, maybe I will try that before idle up. In idle up the pitch curve should be linear, correct?

[skigolfmike]

Yes - the stock idle-up pitch curves, 0-25-50-75-100, are correct.

[LockMD]

Why not try 75-75-75-87.5-100. At least then your punchouts won't bog so much.:lol:


I just tried this, too windy, too cold, too dark. but OMG that was awesome, will have to play with this more before going to idle up mode. I didnt really do a punch out but it was way more responsive to climb, if I were to do a punch out the same way it would climb twice as fast if not more.

Thanks for the tip Mike! still not done playing with the settings but I really like this one!

[LockMD]

Just make sure you can know where throttle hold is and you can get to it quick.

Why not try 75-75-75-87.5-100. At least then your punchouts won't bog so much.:lol:

I have bad hearing and never heard the motor bog you described, BUT I did this curve with 4 batts tonight. OMG best feeling to date. Way too windy to do a punch out. But I think this is my setting, I like having the extra bit of power at the top to fight the winds pushing me down. Will keep idle up for the sim for now.......I know chicken! LOL yes I am

[LockMD]

VERY windy today, was working some on the 600 and decided I need some play time. Out comes the 400 with the curve at 75-75-75-87.5-100 okay feels good......beer or two, lets try idle up at 100-87.5-75-87.5-100 I can only say one thing dont practice this in winds if you dont know what you are doing and not used to it. I'm okay (I think) it all looks good but I came down pretty hard. So off I go again at 75-75-75-87.5-100 a little vibration now but handles in the wind very well, so would the idle up. I'm just not used to going below 50% and then in shoots down very fast while upright. Atleast I know if inverted it will work and go up LOL.

Anyways, I think I may have bent the feather shaft a tad but the vibs are not that bad so until my next crash or it gets worse I'm just gonna leave it for now.

Anyone in my shoes as the learning curve goes, I would recommend skigolfmike's setup of 75-75-75-87.5-100 very nice and should be a great transition into idle up but I will wait for the winds to calm down before I learn idle up.

Just have to hear her spool up and see her fly so stable, cant wait to see/hear the 600 okay well back to the sim for the rest of the night.......practice more nose in I guess.

[LockMD]

If anyone does try this, becareful between flights if your tale is not centered whoa it spins like crazy, luckily no damage just mowed some grass. But I was not expecting it so it freaked me out. So, now before I start her up. I flip into rate mode then back to HH to ensure tail is centered before letting loose of throttle hold.