RunRyder RC
 4  Topic Subscribe
WATCH
 1 page 712 views POST REPLY
HomeAircraftHelicopter
e-
Elec-Helicopters New or Limited Activity
Next-D › 4S setup nose heavy - any tips?
01-24-2010 11:41 PM  8 years agoPost 1
Burdock

rrNovice

UK

My Posts: All  Forum  Topic

Hi all

Almost finished my 4S build

Using a rhino 2250 Mah 40C at 264g with a jazz 40 esc in the normal mount position heli is nose heavy. Any ideas on placement would be appreciated. Got a 3500g on the tail servo boom mount. Should I put the ESC under the frame i.e under the gyro?
Guess if this is the case would need to extend the wires to reach the battery.Is it OK to do this?

PM  EMAIL  Attn:RR  Quote
01-24-2010 11:49 PM  8 years agoPost 2
TonyTypeS

rrElite Veteran

New Orleans, LA & El Monte, CA

My Posts: All  Forum  Topic

I'm running a 4s 2200 and mines balances out just perfect. I have the esc, bec, and the rx mounted on the frame in front of the main shaft. The gyro is mounted in the stock position and the tail servo is on the boom. How much nose heavy are you. You can always do a test and mount your esc in the rear to see if it will balance out. I think a few have mounted their esc in the rear so it should be ok.

PM  EMAIL  GALLERY  Attn:RR  Quote
01-25-2010 12:00 AM  8 years agoPost 3
Burdock

rrNovice

UK

My Posts: All  Forum  Topic

When lifted by the flybar and the lowered so that the front skids touch the bench the back of the skids is off the bench by 9mm.

PM  EMAIL  Attn:RR  Quote
01-25-2010 12:09 AM  8 years agoPost 4
MarshallB

rrVeteran

Middle Arkansas

My Posts: All  Forum  Topic

Push the battery as close to the motor as you can without it hitting. Plus, that battery at 264 grams is a tad heavier than my Blurr 4S 2200 25c packs which are 237 grams with two small square velcro patches on it. That pack is 27 grams heavier!! That equates to almost an ounce! Not a lot but it does make a difference. Mine is a wee bit nose heavy but doesn't really bother me. More powerful packs usually are a bit heavier.. Moving the esc rearwarrd is probably what you need to do.


CurtisYoungblood.com
Next-D
Spyder Batteries

PM  EMAIL  GALLERY  Attn:RR  Quote
01-29-2010 01:01 PM  8 years agoPost 5
luckyhs

rrApprentice

Brasil

My Posts: All  Forum  Topic

Big tail servo...
Hi Burdock,

I had the same problem as you, the only thing that solve this problem to me was to change the tail servo, i put the standard size, JR8900G, and now the CG is perfect.
I hope this helps you.

Luciano

luckyhs

PM  EMAIL  Attn:RR  Quote
01-29-2010 01:17 PM  8 years agoPost 6
Burdock

rrNovice

UK

My Posts: All  Forum  Topic

Took it out for its maiden today as is.

Actually needed forward trim!!!

Flys great, so I guess no issue

PM  EMAIL  Attn:RR  Quote
02-03-2010 08:57 PM  8 years agoPost 7
soljkaer

rrNovice

Champaign, Illinois

My Posts: All  Forum  Topic

Try cutting the front frame so the battery mounts more vertically. My friend has his mounted this way and I think I have seen some photos of Curtis's mounted this way. I'll see if I can find the photo.

PM  EMAIL  GALLERY  Attn:RR  Quote
WATCH
 1 page 712 views POST REPLY
HomeAircraftHelicopter
e-
Elec-Helicopters New or Limited Activity
Next-D › 4S setup nose heavy - any tips?
 Print TOPIC  Make Suggestion 

 4  Topic Subscribe

Friday, June 22 - 3:09 am - Copyright © 2000-2018 RunRyder   EMAILEnable Cookies

Login Here
 New Subscriptions 
 Buddies Online