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Old Jun 19, 2012, 12:25 PM
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United States, ID, Burley
Joined Mar 2012
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Originally Posted by trhodes View Post
Kdean,

Is there torque issues keeping my pitch curves where they are at? Or... should I adjust my travel adjustment? Again, my pitch curves are: L--0, 1--10, 2--20, M--30, 3--40, 4--50, and H--60. Would one lower the aile, elev, and pitch travel adjustment the same percentage?

Thanks,
DEVO-7
Walkera V400D02
Pitch Curve and Throttle curve settings

Traveladj...
Elev-Up-95%
Elev-Down-95%
Alie-L-95%
Alie-R-95%
thro-H-95%
Thro-L-100%
Rudd-L-100%
Rudd-R-100%
Gear+ 100%
Gear- 100%
Pitch-H-90%
Pitch-L-90%
Gyro+ 100%
Gyro- 100%

Subtrim---all at 0%

DREXP
Elev-POS-0--DR=95%....EXP=+20%
Alie-Pos-0--DR=95%...EXP=+20%
Rudd-pos-0--DR+100%...EXP=+5%

THCRV
srvhd=yes
Mode=Norm
EXP=on
point-P-L-output=0%
point-P-1-state-act-output=20%
point-P-2-state-act-output=35%
point-P-M-state-act-output=55%
point-P-3-state-act-output=65%
point-P-4-state-act-output=75%
point-P-H-output=95%

Gyro=Manual
switch=gear
Pos-0=75%
Pos-1=100%
Pos-2=100%

PTCRV
SrvHd=yes
Mode=Norm
EXP=on
Point-P-L-output=30%
Point-P-1-state-act-output=45%
Point-P-2-state-act-output=50%
Point-P-M-state-act-output=55%
Point-P-3-state-act-output=55%
Point-P-4-state-act-output=65%
Point-P-H-state-act-output=85%

This is where im at right now on settings, seems to be working good
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Old Jun 19, 2012, 12:35 PM
Registered User
United States, NE, North Platte
Joined May 2012
149 Posts
Quote:
Originally Posted by fastfwd View Post
DEVO-7
Walkera V400D02
Pitch Curve and Throttle curve settings

Traveladj...
Elev-Up-95%
Elev-Down-95%
Alie-L-95%
Alie-R-95%
thro-H-95%
Thro-L-100%
Rudd-L-100%
Rudd-R-100%
Gear+ 100%
Gear- 100%
Pitch-H-90%
Pitch-L-90%
Gyro+ 100%
Gyro- 100%

Subtrim---all at 0%

DREXP
Elev-POS-0--DR=95%....EXP=+20%
Alie-Pos-0--DR=95%...EXP=+20%
Rudd-pos-0--DR+100%...EXP=+5%

THCRV
srvhd=yes
Mode=Norm
EXP=on
point-P-L-output=0%
point-P-1-state-act-output=20%
point-P-2-state-act-output=35%
point-P-M-state-act-output=55%
point-P-3-state-act-output=65%
point-P-4-state-act-output=75%
point-P-H-output=95%

Gyro=Manual
switch=gear
Pos-0=75%
Pos-1=100%
Pos-2=100%

PTCRV
SrvHd=yes
Mode=Norm
EXP=on
Point-P-L-output=30%
Point-P-1-state-act-output=45%
Point-P-2-state-act-output=50%
Point-P-M-state-act-output=55%
Point-P-3-state-act-output=55%
Point-P-4-state-act-output=65%
Point-P-H-state-act-output=85%

This is where im at right now on settings, seems to be working good
If I use those pitch curves my pitch will be out of wack unless I adjust my servo travel.
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Old Jun 19, 2012, 01:33 PM
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United States, ID, Burley
Joined Mar 2012
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Quote:
Originally Posted by trhodes View Post
If I use those pitch curves my pitch will be out of wack unless I adjust my servo travel.
yes indeed i had to adjust the servo rods to work with these settings,using a pitch gauge
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Old Jun 19, 2012, 01:43 PM
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United States, NE, North Platte
Joined May 2012
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I adjusted my pitch curves to -2 at low stick, +2 at mid-stick, and +6 at full-stick and guess what no tail wag. I had emailed Dane at rtf-heli and he thought my pitch had too wide of a range. I am still not sure on the throttle curves as I am keeping the percentage pretty low. In fact, my throttle curves are 0, 30, 40, 40, 40, 50, and 50. But, man it flies like a dream without that tail wag. Does anyone have a wobble when spooling down? I think this is due to the main gear warp.
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Old Jun 19, 2012, 03:57 PM
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Joined Jun 2011
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Quote:
Originally Posted by trhodes View Post
I adjusted my pitch curves to -2 at low stick, +2 at mid-stick, and +6 at full-stick and guess what no tail wag. I had emailed Dane at rtf-heli and he thought my pitch had too wide of a range. I am still not sure on the throttle curves as I am keeping the percentage pretty low. In fact, my throttle curves are 0, 30, 40, 40, 40, 50, and 50. But, man it flies like a dream without that tail wag. Does anyone have a wobble when spooling down? I think this is due to the main gear warp.
A wobble when spooling down happens sometimes, it seems like sometimes after repairing i get it and sometimes not. However you should be able to use a larger pitch range than that, plus if you are just hovering it shouldn't matter too much so that's kind of strange.

Is it wagging with both batteries or just that one still? Check your main blade tightness too since you have tail wag and a power down wobble, might be that, dunno. Also try turning your throttle up so you get higher head speed, if you still have the brushed main motor 40% is pretty low. Try 0, 40, 80, 80, 80, 80, 80
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Old Jun 19, 2012, 04:04 PM
Folding Spacetime
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United States, CA, Fullerton
Joined Jul 2011
1,914 Posts
Blades being out of balance, of differing weight, and/or out of track can easily cause intermittent jittering motion and glitchiness in the air, as well as serious wobbling during spooling down. Another symptom of blade issues can be tail drifting, too. The balance of the main blades is way more of a big deal than any wobble due to the main gear being warped.

Now, if the main gear is warped such that the pinion mesh is varying in tightness, well then that is another problem, too.
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Old Jun 19, 2012, 04:11 PM
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United States, NE, North Platte
Joined May 2012
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I will try those curves. I am using the brushless motors. Should blades be loose or tight?
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Old Jun 19, 2012, 04:14 PM
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United States, ID, Burley
Joined Mar 2012
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Quote:
Originally Posted by trhodes View Post
I adjusted my pitch curves to -2 at low stick, +2 at mid-stick, and +6 at full-stick and guess what no tail wag. I had emailed Dane at rtf-heli and he thought my pitch had too wide of a range. I am still not sure on the throttle curves as I am keeping the percentage pretty low. In fact, my throttle curves are 0, 30, 40, 40, 40, 50, and 50. But, man it flies like a dream without that tail wag. Does anyone have a wobble when spooling down? I think this is due to the main gear warp.
I set my pitch real close to the manual, -4 at 0 throttle, +5 at middle throttle, and it is at +9 at full throttle.
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Old Jun 19, 2012, 04:57 PM
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United States, ID, Burley
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Originally Posted by trhodes View Post
I will try those curves. I am using the brushless motors. Should blades be loose or tight?
If you turn heli on side it should take a good shake for blades to fall.both should fall the same.
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Old Jun 19, 2012, 08:05 PM
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United States, GA, Covington
Joined Mar 2011
1,991 Posts
My 2nd charlotte nc fly went well. Had a bit of a low ground touch at end of 1st flight. But she flew like normal after . Please enjoy.

walkera v400d02 3d charlotte nc 1.MP4 (5 min 36 sec)


walkera v400d02 3d charlotte nc 2.MP4 (4 min 18 sec)
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Old Jun 19, 2012, 10:05 PM
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Australia, NSW, Waterfall
Joined Jun 2011
1,021 Posts
Quote:
Originally Posted by penz83 View Post
Yeah you would just need the tx and rx, the converter is on eBay and the tail esc can be found at rtf-heli.

The v400 is 150 new, and you going to need batteries and all the mods your looking at an additional 150...
Left a message for you bloke on your add Cheers
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Old Jun 20, 2012, 10:34 AM
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United States, ID, Burley
Joined Mar 2012
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Tail spin test

Looks like i got the devo7 settings back to normal again notice the ugly white thing in front of the tail ? thats my home made tail guard as the plastic tail breaks so easy,this will hit before tail and save it

bumblebee-v400.avi (2 min 13 sec)
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Old Jun 20, 2012, 01:42 PM
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United States, CA, Hayward
Joined Oct 2010
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v400

Quote:
Originally Posted by fastfwd View Post
Looks like i got the devo7 settings back to normal again notice the ugly white thing in front of the tail ? thats my home made tail guard as the plastic tail breaks so easy,this will hit before tail and save it

http://www.youtube.com/watch?v=j4rwk...ature=youtu.be
Nice flying and very stable my friend ! Nextime fly w/o the trainer balls...I think you don't need 'em.
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Old Jun 20, 2012, 02:07 PM
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Joined Jun 2011
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Originally Posted by navigator2011 View Post
Now, if the main gear is warped such that the pinion mesh is varying in tightness, well then that is another problem, too.
That's another good one. I've had it before where i set my mesh only to find that the other side of the gear was too tight, now i look for the tightest part of the gear and set it there.

Tr, you may want to double check all around the gear that there is no binding anywhere, you should always have a little bit of back and forth play.



Fastfwd, Looking good there and glad to see you got it back up flying. I'm with Coco, you probably don't need the training feet any more. I left those on longer than i needed to and was surprised how easy the heli would take off and land on its feet. Also without them your heli will fly much better. But as always, go at your own pace
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Old Jun 20, 2012, 02:09 PM
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United States, CA, Fullerton
Joined Jul 2011
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Yep, very stable and you appear to have the heli under control at all times. If I was you, I'd shelve the training gear and practice taking off and landing smoothly without hitting the tail. Then, you won't have to worry about the fragility of the tail anymore.
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