Why Idle up 1 and 2?

[Tripler]

Guys,,

Maybe a stupid question but!!

Been flying a Raptor 50v2 for a year now and still have'nt grasped or fully understand the need for Idle up 2,, could someone please explain,,
I think I must be missing something.

I have normal setup eg -6 + 10 and Idel up 1 at -10 +10 using mid stick at
+5.5 which I'm comfortable with,,

Do I need to setup an Idle up 2 or is it just another option for pitch/th setup
and mixing

I'm able to do loops rolls stall turns etc, with this setup and can't see the point in having another Idle up,

Cheers

[jimbob]

Idle up 2 is just another set of pitch/throttle curves as you say. If you look in back of the Raptor manual, they give 2 sets of settings for Idle 1 and 2, with suggested uses for each... These are just their uses, set the curves up for whatever your doing though.

You could set I1 for FAI and I2 for 3D, or I1 for 3D and I2 for inverted maybe?

[Steve]

Blimey!

You have -10/+10 with +5.5 in the middle!

So your blades go from -10 degrees to +5.5 over just the bottom half of the stick range. That's quite a lot! And then they only go from +5.5 to +10 over the top half of the stick range!

My flight modes are;

Normal (hovverring): -4 to +10 with +5.5 in the middle
Idle Up 1 (flying): -6 to +10 with +5.5 in the middle
Idle Up 2 (3D): -10 to +10 with 0 in the middle.

I'm not into 3D, but I do sometimes fly around in Idle Up 2 just to get the feel for it - hoverring at 3/4 stick etc. It's also much easier to set the whole heli up in 3D mode, as you can make sure that you've got 0 degrees at middle stick, and all the servo arms and push rods etc. are at 90 degrees. Get that right, and everything else just seems to fall into place naturally.

[Steve]

I've also drawn up an Excel spreadsheet that I store all my pitch and throttle curves in.

I tell it what the maximum and minimum pitch is in degrees. I then tell it how many percents on my pitch curve I need to get the maximum and minimum pitch (when it's set up properly, it's -10 deg at 0%, 0 deg at 50% and +10 deg at 100%). Finally I enter all the 7 curve points from each flight mode into the sheet in percents.

The software then draws all the curves on a graph, so I can compare them directly against each other, and fine tune rogue points.

Is useful for comparing throttle curves as well.

[Tripler]

Blimey!

You have -10/+10 with +5.5 in the middle!

Yes I know,,

I've found that better once I got used to where the 0 was,
and you only have to do slight movements of the stick when doing rolls loops flips etc,,
plus when fast flying around I've found it uncomfortable to have the stick at 3/4s to fly forward,, it seems to make using the tail harder too!!

I must admit other guys have had ago with my heli and found it "a bit to lively"

still it works for me,, so I guess I'll stick with it and not bother putting
an Idle2 in for now.

cheers

[Ade_Law]

dood... that is just not the way to do it. (as others have said)

0degs mid stick with a straight line up to whatever the engine will hold is the only way to go.

As others have said its a big difference when having 5.5 at mid stick. 15degs one side and just 4.5 the other.

i run the same linear curve centered on zero in all modes the only difference accross norm/idle 1/2/hold is throttle and headspeed.

I use normal mode purely for spool up and shut down, never use it to fly.

Idleup 1 is a full idle up throttle curve with around 1700rpm, helps to smooth the model out for hovering

Idleup 2 is a full idle up throttle curve with 2000rpm. used for 3d, gives the ultimate power available from the engine.

throttle hold is fairly obvious!

Ade

[Tripler]

ADE,,

After watching clips of you flying
I think I will bite the bullet,, and learn to fly with 0 at mid stick,
I'll take your advice and re-set my heli,,,

Could you please advise the best setup for my standard Raptor 50 v2 0s sx-h Revlock GV, MS carbon mains V-Paddles 3D fins and carbon tail blades
"is this getting close"
THR Pitch
Normal 0-25-50-75-100 -4 0 +10
ID 1 100-60-50-60-100 -10 0 +10 revlock set 1700 head
ID 2 100-80-55-80-100 -10 0 +10 revlock set 1800 head
Hold 0-25-50-75-100 -4 0 +10

or am I way off the mark!!
cheers,,

[Ade_Law]

Trippler, +/-10 in all modes.

Gov disabled in normal, used for spool up/shut down only. This helps to stop you flipping inverted in normal... notice I say Helps, doesnt always work as i remembered yesterday afternoon when i put the knight in the ground AGAIN.. doh!!!!

idle up 1 set to about 1700,
idle up 2 set to 1900-2000.

Ade

[Tripler]

"Cheers" ADE

[Disc]

Ade: you crashed?

[Ade_Law]

yep... having a bad run... thats 3 in 4 weeks. all doing something really stupid.

<hits head on table>

Ade

[Tripler]

"See everybody"

Even the best make stupid mistakes,,
goes to prove they are human!! and not from another planet,,

"that's after you've watched them fly and convinced your self they must be from another planet to beable to fly like that,, he he