RE: WALKERA 37  
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All Forums >> RC Helicopters >> Electric RC Helis >> Walkera Helis - Dragonfly, etc.. >> RE: WALKERA 37
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RE: WALKERA 37 - 7/17/2006 12:09:22 PM   
armycopter



Posts: 616
Joined: 2/10/2006
From: Biddeford, ME, USA
Status: offline
quote:

ORIGINAL: Heliwannabe

I put the training wheels on this afternoon and must have an hour or so hovering practice and so far so good (two battery discharges). Everything is staying nice and cool with the 11T. Wonder if it is the throttle/pitch adjustment. Mine lifts off with with pretty high head speed but is quiet and smooth. After running 10 minutes the motor housing is just warm and the battery is barely above room temp. The motor mounting plate is somewhat hotter but I can easily keep my finger on it. I think I will stay with this setup for now and get in some more practice.
Jim


What is your throttle adjusted to? Mine is set for linear. I set my pitch and pitch throw so that the aircraft just starts to lift off at 1/2 throttle.

(in reply to Heliwannabe)
       Post #: 251

RE: WALKERA 37 - 7/17/2006 1:13:10 PM   
W37 Cepeda



Posts: 366
Joined: 6/2/2006
From: Pompano Beach, FL, USA
Status: offline 		HEy army,

Did you have to reverse the connection
'locations for the HS-55 Servos? I had to with mine.
It's just an observation. When I changed mine..
the remote went into European mode.. Strange..
then I swapped the connector locations on the
reciever.. this fixed the issue.

Did you enconter this?

Oh by the way. im going to replace all the servos.
except the rudder servo, cause thats with the gyro and
its paired..it is so much more responsive.. So much better.



< Message edited by W37 Cepeda -- 7/17/2006 3:36:07 PM >

(in reply to armycopter)
       Post #: 252

RE: WALKERA 37 - 7/17/2006 1:58:30 PM   
W37 Cepeda



Posts: 366
Joined: 6/2/2006
From: Pompano Beach, FL, USA
Status: offline 		If anyone here has a reciever unit.. identical to the DF37, just the reciever.
please contact me.. I'm looking for just a reciever unit for another project.

Thanks

(in reply to armycopter)
       Post #: 253

RE: WALKERA 37 - 7/17/2006 6:57:51 PM   
armycopter



Posts: 616
Joined: 2/10/2006
From: Biddeford, ME, USA
Status: offline
quote:

ORIGINAL: W37 Cepeda

HEy army,

Did you have to reverse the connection
'locations for the HS-55 Servos? I had to with mine.
It's just an observation. When I changed mine..
the remote went into European mode.. Strange..
then I swapped the connector locations on the
reciever.. this fixed the issue.

Did you enconter this?

Oh by the way. im going to replace all the servos.
except the rudder servo, cause thats with the gyro and
its paired..it is so much more responsive.. So much better.




Hey Cepeda-
I'm not sure what you mean by reversing the servo connections, but what I did was
1. Swap all four servo's for HS-55's
2. Adjust my dipswitches AND my gyro reverse function so that they all worked properly. (I can post my dipswitch settings if you want)
3. Test flight

The HS-55 servos all seemed to run in reverse so I had to make some changes. It works like a champ now....




(in reply to W37 Cepeda)
       Post #: 254

RE: WALKERA 37 - 7/18/2006 1:59:15 AM   
Heliwannabe


 

Posts: 58
Joined: 3/30/2006
From: Scottsdale, AZ, USA
Status: offline 		I am really new to these helis and I bought this just searching the internet one night so I don't know very much about the others. This is a good machine now but if you get the stock brushed motor and battery its pretty much un-useable. It needs the burshless motor and Lipo battery. I did modify the stock push rod. I shortened it slightly and used a pair of wire cutters to make indentations on the end so the glue would hold. I used JB weld and I can't pull it off. The other end is still adjustable. It worked perfectly on mine.

I wish I could be more help with the other models buy maybe someone else can chime in.

(in reply to balance_mind)
       Post #: 255

RE: WALKERA 37 - 7/18/2006 2:10:07 AM   
Heliwannabe


 

Posts: 58
Joined: 3/30/2006
From: Scottsdale, AZ, USA
Status: offline 		Not sure which switch sets linear but here are my settings.
1 on
2 off
3 off
4 off
5 off
6 on
7 0n
8 on
9 on
10 off
11 off
12 off

Mine lifts off just above mide throttle just as the main blades just settle into a nice quite smooth woosh. If I hold it to the bench and max the throttle it's scary. It pulls like heck and makes a lot of air noise. I'm not doing that again. I swear this thing could lift a pound. Sure seem to be working good, maybe I just got lucky with my settings.
Jim

(in reply to armycopter)
       Post #: 256

RE: WALKERA 37 - 7/18/2006 12:45:10 PM   
W37 Cepeda



Posts: 366
Joined: 6/2/2006
From: Pompano Beach, FL, USA
Status: offline 		Some msg. me concerning the unit not lifting.

Here are some pointers for both.

Actually the dips really has little to do with linear.

The knobs v1 PIT LIMIT and v2 PIT CURVE will determine that.

Your problem lies with the the angle of attack of the blades.

It seems to me that when you installed the new blades

you might of decreased it.

Know you don't have enough pitch for lift.

You need to adjust it between 4-8 degrees using the PITCH
angle tool provided be Walkera. 5 lesser to 8 aggressive.

If you go to high, you will start to have yaw problems, if you
go to low , your copter will not have lift.

Use the pitch angle tool to adjust the blade pitch, the reference for

zero is your flybar.

The linkage you use to adjust
the tracking ( the bottom linkage), use the TOP linkage to add or retract
pitch angle for the blades.

(in reply to Heliwannabe)
       Post #: 257

RE: WALKERA 37 - 7/18/2006 1:29:09 PM   
armycopter



Posts: 616
Joined: 2/10/2006
From: Biddeford, ME, USA
Status: offline 		Mine lifts and flies great. I do have the throttle adjusted to linear and my blades are balanced and tracked perfect. Pitch is -2 to 9 in NORMAL mode. lots of power and lots of fun. If I can just keep from crashing it...

(in reply to W37 Cepeda)
       Post #: 258

RE: WALKERA 37 - 7/18/2006 3:06:26 PM   
ellcheepo


 

Posts: 13
Joined: 4/26/2006
From: LeedsEngland, UNITED KINGDOM
Status: offline 		Hi guys, I got my 37 last week and was really pea'd off with it I got it home and charged up the battery and then decided to test all the electronics where working, plugged in the battery and set it down, started to spin up the blades and the head flew to pieces, turns out that one of the pins that hold the two parts for the pitch control parted and that then meant the loose piece broke one of the control rods and then the head. bent the boom as the blade hit the side of it. was well peeved. any way a bit of glue and time all back together and now I have the issue of tail spin and yaw so might get it to hover at some point in the near future. my point is that it's a good idea to check all parts out before you start to fly.

(in reply to armycopter)
       Post #: 259

RE: WALKERA 37 - 7/18/2006 3:29:09 PM   
mcdaniel



Posts: 139
Joined: 2/2/2006
From: stodgo, DOMINICAN REPUBLIC
Status: offline 		HI there
thanks to all for valuable info about this new 37 heli (armycopter, cepeda,heliwannbe), I been check your post everyday for one week.
well, like many people ,I upgrade from df#4 (not so bad) and finaly get into the cp model. so this model do not lift with 100% trotle ,ok is pich level ,but how I can set that about 60 % trotle to get in the air maybe is dip #10? will be started at 0 with v1/v2 and up/ down or olny adjust one v1 you tell me. the unit is all stock. I made blade tracking is ok, lipo will be here in 4 days.
dip #12 all counter cw v1/v2. avcs set to nor,gyro 70%, and rev set, (when avcs is selected at 60% trotle turn like hell (rudder angle?)
thanks if yours could tell me an easy way to set those dip 10,11,12. maybe is less frustrating experience to me.
Meatime is time to learn the basic and time to time control this bird.

ps : ARMYCOPTER on friday I will be order this motor and esc same as your I keep in touch

(in reply to armycopter)
       Post #: 260

RE: WALKERA 37 - 7/18/2006 7:30:00 PM   
W37 Cepeda



Posts: 366
Joined: 6/2/2006
From: Pompano Beach, FL, USA
Status: offline 		Forget about the DIPS ok.. They will not do what you want.

DIP 10 is the PIT lock and you should leave the default value (OFF).

WHY? DIP 10 is the memory for the PIT settings. if you set it on,

you are telling the remote control to remember the current settings

until you turn it off and switch it back. This process requires adjustment

as stated in manual..so DONT MESS WITH IT!

You are going to need more than 60% of throttle to lift
the copter of the ground to a hieght were the back draft
of the blades won't effect your hover. 60% of throttle makes for
copter handle very poorly at best.

1st start with V1 and V2 in the center position. Don't mess with
that yet , casue it wont help you. Your flight knowledge with this
unit is poor ...so leave the original setting so that
when you have a problem, you will know that it did not
come from messing around with the settings.

Adjust the blade pitch to a level recommended.
This totally depends on your unit.. On mine I have
it adjusted to 8 degress, and with the stock motor
and lipo battery , half way thru the throttle, my unit begins
to lift.

But then again, to much pitch can cause a yaw problem, (your tail rotating clockwise )
and to much pitch will shorten your fly time, cause air makes more
resistance on the blades..

This is a delicate balance. To little pitch and the copter wont lift or acts sluggish (not very responsive)
and most of all, make sure your main blades are tight. ( you dont want loose main blades( it causes
the unit to wabble in the air)) ( do not over tighten the neither.. just enough for them not to move on its own).

And one more thing.. MAKE SURE YOUR SWASH PLATE IS LEVELED. Beleive me, if your swash plate is not
level, the minute you lift, it will go to into that direction. A Leveled swash plate makes for a perfect vertical
take off. .

Use training gear at all time.

Good luck.



(in reply to mcdaniel)
       Post #: 261

RE: WALKERA 37 - 7/18/2006 8:11:43 PM   
mcdaniel



Posts: 139
Joined: 2/2/2006
From: stodgo, DOMINICAN REPUBLIC
Status: offline 		thanks cepeda
training gear on
all dip with factory set
so now how I setting the pitch, or check the angle of attack and reajusted probable I need more angle because only at 100% trotle the heli elevated 2-3 inch, with stock battery. you thing that when lipo come it wil be better?
this dip #12 I changed both v1/v2 to all counter cw , maybe I should leave like this or wich is factory sett .

(in reply to W37 Cepeda)
       Post #: 262

RE: WALKERA 37 - 7/18/2006 8:42:17 PM   
armycopter



Posts: 616
Joined: 2/10/2006
From: Biddeford, ME, USA
Status: offline 		The lipo will definitely help. However, if you can afford it, I would immediately purchase a brushless motor and esc.

(in reply to mcdaniel)
       Post #: 263

RE: WALKERA 37 - 7/18/2006 9:00:20 PM   
W37 Cepeda



Posts: 366
Joined: 6/2/2006
From: Pompano Beach, FL, USA
Status: offline 		Yes.
The lipo is way better and it will give you longer flight.

The Brushless motor and ESC is even better more and longer flight too.

Currently I use the stock esc and motor with a lipo

battery, but this is because i got defective brusless motor

esc. and I'm waiting on the new replacements.


(in reply to mcdaniel)