Help with idle up?

[gibbon]

Hi, just to fill in quick, Last year i got to point where i was flying my elyQ 50 around just doing some high bank turns and general flying and got confident with doing so, in "normal" mode. Ive not flown over winter and now about to get back into it and want to set off on the right foot and get into the habit of using idle up as i have intentions to progress further.

Now last year i did set it up but when i flicked it to idle-up the RPM jumped up and the heli flicked up a bit which personally shit me up, i kept it hovering for a short while while i gathered myself and then flicked it back to normal.

So... i set about setting it back up earlier but cant really understand how to do it, Well i do but i just have a few questions.

When generally am i to flick into idle-up? When hovering, just before take off? As I assume this decision is needed now for me to be able to match the Throttle pos on both so there is no "flick"?

Do i set my idle-up to how i want it and then set normal throttle curve up so that at the point i want to change the throttle pos match?

Im sure from the above you can see confusion and im sure one of you can put me on the right path.

Thanks
Andy

[hedge]

Idle up has its own settings for a number of items that are dependant on the number of channels and the type of radio/electrics you have. Let us know what you've got and we can walk through the settings.

[franky975]

I have set my pitch curve as 25% low stick, 50% at middle, 100 at high stick in normal mode 0/50/100% in idle up 1. I have +/- 12 deg pitch and 0 at middle stick. Since i use governor the throttle curve not as important as it is 2000rpm head speed above 25% throttle in normal and always in idle up.If i switch between modes it does not jump as the pitch curves are same above half stick. Also my mode switch does my dual rates and expos as well. That's how i set mine but sure others may use different.

[pug907]

Hi, my idle up settings are pretty basic, but I learned to fly with them and haven't really looked back. Depending on your Tx, you either have 1 or 2 idle ups, as well as normal mode.
My Idle up 1 is set at: Thr curve 85% flat line and Pitch curve 0,25,50,75,100. My IU2 is: Thr~ 100,95,90,95,100 and Pitch~ 0,30,50,70,100. I always lift off first time in normal, just in case something electronic is having an off day, then put the heli down, set throttle to midstick (that way you know it's not going to go anywhere, as mid stick should be 0*), flick hold off and let the soft start wind it up to speed. I must just add that both my helis, logo500 and Gaui550, are FBL, before anyone shoots me down, not sure if it makes any difference TBH.

The thing I like about those settings is the fact that I can take off and land in IU, so no pitching or diving when you flick over to and from normal, just don't "drop" the throttle in relief when you've landed, they don't like it lol. I am only at the sport flying stage, with a few loops, rolls and shaky inverted, but they work for me.

Good luck on your IU quest anyway, I'm sure some of our more learned kindred will get you on the right path, they very rarely fail to deliver!

[franky975]

Do you have governor fitted?

[gibbon]

Hi thanks for replies, sorry for not providing enough info. I am using a dx8 and no governor.

Pug907. That setup sounds good but with my ic elyq the throttle obv wouldn't soft start but jump up which is what happened to me but i was in the air so wasn't to bad.

I guess main things are with my ic heli, when I switch to IU the throttle and pitch needs to match in order to not get the jump? So for me to do this in the air my normal throttle curve must have to be at desired headspeed at hover or above? Where as now in normal my throttle curve is pretty linear from 0 - 100.

Thanks
andy

[tomatwalden]

......

When generally am i to flick into idle-up? When hovering, just before take off? As I assume this decision is needed now for me to be able to match the Throttle pos on both so there is no "flick"?

Do i set my idle-up to how i want it and then set normal throttle curve up so that at the point i want to change the throttle pos match?

....

Thanks
Andy

Almost certainly nothing to do with throttle curve. Normally, if a heli jumps suddenly when you flick to idle up, it's because the pitch curve (not throttle curve) at 50% doesn't match. eg. at midstick, you should have the same pitch setting in both normal and idle up.

[gibbon]

Hi tomatwaldon so to have in normal mode 0 degrees pitch at mid stick to match IU that means then I must go into idle up before I lift off?

Andy

[milly0812]

Help with idle up?

You need to be aiming for 5-6 degrees of pitch at 3/4 stick in both modes, that way when you flick into idle up you won't get that jump, just an increase in head speed

[tomatwalden]

Hi tomatwaldon so to have in normal mode 0 degrees pitch at mid stick to match IU that means then I must go into idle up before I lift off?

Andy

No, it means that you need pitch curves something like this ...

Normal : 30% 40% 50% 75% 100%
IdleUp : 0% 25% 50% 75% 100%

ie. The normal pitch curve has less negative pitch to make take-off and landing easier, but beyond 50% (ie. once you're into positive pitch), the Normal and IU pitch curves are exactly the same.

What you DON'T want is something like this ..

Normal : 30% 35% 40% 60% 85%
IdleUp : 0% 25% 50% 75% 100%

ie. beyond midstick, the pitch curves are different. Curves such as this will cause a sudden change in altitude when you flick between flight modes.

If you have the same POSITIVE pitch curves (as per the top settings above), you can safely change into IU after taking off in normal mode, and you won't get a sudden jump from the heli.

T

[hedge]

Nitro especially benefit from a governor. There are lots to choose from and at approx £30 are well worth it. As has been said the jump is pitch not throttle curve. Regarding how to fly there.are a host of options I take off in normal the flick to idle up, others start idle up and others still fly in normal them when needed flick to idle up. Do you have a 7 channel radio?

[gibbon]

Hi hedge. Yes I'm running a dx8.

Andy