pitch setting

[iayla]

Hi all,

I need some help about pitch setting please.

i was using the info on http://www.helifever.com/intro/radiosetup/ and setup my heli normal mode pitch at

p1 -1
p2 +2
p3 +5
p4 +7
p5 +10

i went to the field and had it check up and ppl thold me it was all wrong.

it should be like

idle 1:
P1 -10
p2 -5
p3 0
p4 5
p5 +10

and normal mode :(beginner)
P1 -3
P2 -1
P3 0
P4 5
P5 10
should it be like this?

thanks all for your help !

[iayla]

One more thing,

This prob sound like a stupid question... but well we have to start somewhere :D

i bought this from heliproz http://www4.mailordercentral.com/heliproz/prodinfo.asp?number=804150

the prob is on the pitch gauge both # are the same, i mean there is no Neg then Pos. So i was assuming right side is positve pitch and left side is negative? am i wrong?

Thank for your time ! :noteworthy

[WayneBrown]

use the leading edge of the blade as a reference. If the leading edge goes UP that's positive pitch. It's all in your point of reference.
Mechanically, you want everything square, and to get as much pitch as possible without having more one way or the other, then you can program to your begginer setup via tx.
Negative 1 degrees is okay for the first hops of a rank beginner, but should be changed to -3 or -5 after a couple flights. Little negative pitch will make it harder to learn if there is any wind because the machine simply will not descend, and there is the risk of tipping the machine if a gust hits while the rotor disk is still spooled up.
You can adapt to a correct setup and learn once, or adapt to a substandard setup, and have to relearn later. Better to get it right the first time.

[iayla]

Lamebird, so if i get this right u mean this?

http://img.photobucket.com/albums/v84/iayla/pitch.jpg

Thank you for you time !

[Hotshot Charlie]

You got it right iayla !!! Consider the blade at level as being zero pitch, everything upwards is positive and all downwards is negative.

[iayla]

Cool! Thanks a bunch LameBird and Hotshot Charlie !!! :noteworthy

[WayneBrown]

No problem!
That's the reason we keep coming, to get and recieve a hand.
Let us know how you do?

[iayla]

update:

just did a test flight today ...

uh hu almost crash my heli ack...

pitch setting was all good cept the tail. when i started to give more throttle to lift the copter, the tail started to spin "counter clockwise" tryed to compansate with the tx but seem there was no respond. So i just end up stoping the heli b4 i crashed it.

i think it's my 401 setting. i set it according to raptortechnique.com
with DS enabled since i have a 9254 and max out limit at 140 delay was at 0.

now as the tx programming uh to tell the truth i have no idea how to set it up, even after readign the manul and so, i still dont get what all those means.. so i end up "try to do what raptortech.com gyro tx setup was" i have no idea what AVCS means n so...

gonna try to read more on gyro tonight :shock: :dontknow

[Tristan Buhler]

I am fairly new too. THe tail spining happened to me to. I use a 401 too. I had to reverse the gyro. That solved the problem for me.

[WayneBrown]

Here's a quick guide;
AVCS is heading hold, the mode you want to be in at all times for the forseeable future.
Set the TX gain at 80% and center the trims in all modes. Set the limit to avoid linkage binding between servo, and mixer on T/R pitch slider. When powering the Reciever up, do NOT move the machine for 30 seconds while the gyro starts and initilaizes. The red light should be solid, not blinking. This indicates AVCS mode.
Trial hovers should determine gain setting for the machine probably around 68-75% Lower the gain to keep the 'wag' out of the tail.
You should Nver, ever need to add rudder trim! If the machine rotates on raising throttle, you probably have REVO mix on.

[iayla]

Did a check up on the heli checkign if it was reverse or not, (checked with Raptortec.com technique) and YES it was reversed OMG, Thanks for your input tbuhler2!

and yes the revo mix was at on, going to set it at INH since there is only those 2 option, Thanks LameBird !

as for Tx gain setting at 80% or around 68-75% ... hmm ok but how do i set that? do you mean setting the "LIMIT"lowerd, so instead of 140 witch is 100% so 75% should be at 105 for the 401?

gonna try a test flight again tonight afther work if time permit.

thank all for your input again !

[iayla]

another test flight today, the heli seem to be responding better compare to tuesday, but still have a bit prob with the tail, the red light is not solid, it still blink but slowly. and the tail seems to be responding but not fast enuff.

[iayla]

update:

got it all work out i think... re and re and re checked all tx prog did a lot of mistake eh...

i think i know what u mean LameBird by saying set the tx at 80% gain, prob at tx prog at RUD setting to 80% i got it set at 75%

going to test fly it prob sat since i job> heli :mrgreen:

[WayneBrown]

set your channel 5 switch to the position you want for AVCS, then flip that switch 5-6 times rapidly, ending in the position you want to keep. This will reset the gyro. Adjust the channel 5 ATV for that position to 80% and test fly. If the tail wags, lower it at 5 point increments until it stops and holds solid. Glad you found the REVO mix, this is a pain to troule-shoot.

[Tristan Buhler]

i have the gain set a 80% for HH and I use a 8103

[DavidH]

I suggest lowering the gain till the gyro will not hold. Then raise the gain sensitivity till the gyro starts to hold well.
The GY gyros hold very well even with low gain setting. If your running a higher gain than needed, all your doing is overworking and shortening the life of the tail servro.

The flipping of the switch back and forth between AVCS mode and normal mode is telling the gyro to have the same neutral position in both modes. This is in the instructions I believe.

David

[iayla]

YES YES YES AND YES ! ! ! /DANCE WOOOOHOOOO

Guess what?!?! i finally got it all worked out. did 3 tank of hovering ( rather call it chasing afther the heli actuly *cough*)

I AM SOOOOOOOO HAPPY !!!!

Thanks to you all ! i got it in the air !!! I AM SOOOOOOOOOO :mrgreen:

This week, i got it finally all config but stil cannot make the 401 worked cuz cuz of one mistake. Even afther setting it back n forth with yall recomendation.
THE BUG WAS the SWITCH B (on my 9chp) wasent set up, even when i tought it was. So by flipping it back and forth like DavidH suggestion I ALL WORKED OUT !!!! WOOOOHOOOOO

:banana :banana :banana :banana :banana :banana

ok now for the next wave of question :mrgreen:

1: on a hover stages , my tail is moving counter clockwise, not a lot, actuly just a bit, but it is enuff for me to correct it, i mean, on the hover stage, the tail should be 100% fix facing one direction right?(mine is like 95%) w/o the need of corercting it, unless it need to be tuned? if so how?

2: since i am just starting out, and i hover about 1 foot high, is it normal that i get like a huge amount of smoke area? Or is the enging to ritch? if so, i should adjust it the neddle clock wise? OS 50 (not hyper)

3: Volt watch, on a full charge i got a readding full (7 LEDup) then at the end of first tank i got a reading of 4 LED up, in the second flight when the servo move the ligth move to red zone, so for playing safe i end up charging as soon afther my first flight ( that aint normal uh?) i am usnig a 2400 Nicad 4 cell sanyo and my charger is a ISL schulze 6-333d (all bran new)

4:my pitch curve settign are -5, 0 , 10. Is it normal that the heli start to lift up only when it pass 2/3 stick ? did i set my pitch curve wrong?


Thanks all for your help again, i would NEVER end up this far w/o yall !!!