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Old Jan 02, 2008, 11:03 AM
FPV Desert Beta Test Center
Mesa, Arizona
Joined Nov 2006
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Best ES CG for FPV purposes

What are you guys with some time on the systen using for CG. Are you using the factory recommended 5mm from the back edge on the spar cover or further forward? If the stock location are you balancing it to be level or pitched down?
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Old Jan 02, 2008, 01:56 PM
Heli addict
Joined Feb 2007
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I found out that factory recommended CG position gives the ship slowest gliding speed. If CG position goes further forward the gliding speed will be more in order to keep plane level. But if CG goes a bit back then plane tend to stall and elevator needs to be trimmed down.
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Old Jan 02, 2008, 02:10 PM
FPV Desert Beta Test Center
Mesa, Arizona
Joined Nov 2006
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I currently have my CG at the factory recommended 5mm and have had to add down elevator trim just to avoid straight and level stalls. I think its still flying too slow hence my wish to hear what others have found to work for FPV.
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Old Jan 02, 2008, 03:07 PM
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LOL....I just put my FPV System on and fly!
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Old Jan 02, 2008, 03:09 PM
FPV Desert Beta Test Center
Mesa, Arizona
Joined Nov 2006
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LOL... Really! What kind of ship is that where CG isn't important. A balloon perhaps?
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Last edited by Gary Evans; Jan 02, 2008 at 03:45 PM.
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Old Jan 02, 2008, 04:05 PM
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Quote:
Originally Posted by Gary Evans
LOL... Really! What kind of ship is that where CG isn't important.
All of my FPV Ships.....I Just put the stuff on and Fly
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Old Jan 02, 2008, 04:20 PM
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I have flown several ESs and found that if I balance the wing right on the leading edge of the spar box that works best for me. My FPV ES weighs around 30 oz and it flies slowly enough for me.
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Old Jan 02, 2008, 04:22 PM
bulldozerr
Manchester, Connecticut
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Quote:
Originally Posted by Domoson
LOL....I just put my FPV System on and fly!

Yup, Yes he does lol
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Old Jan 02, 2008, 04:37 PM
FPV Desert Beta Test Center
Mesa, Arizona
Joined Nov 2006
2,406 Posts
Quote:
Originally Posted by randall1959
I have flown several ESs and found that if I balance the wing right on the leading edge of the spar box that works best for me. My FPV ES weighs around 30 oz and it flies slowly enough for me.
Wow! Thats major change from 5mm in front of the rear of the spar box. As suspected I may have my CG way too far back.
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Old Jan 02, 2008, 04:40 PM
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My EasyStar is very nose heavy....thats why I put a brushless on..to handle the weight.
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Old Jan 02, 2008, 06:03 PM
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Quote:
Originally Posted by Gary Evans
Wow! Thats major change from 5mm in front of the rear of the spar box. As suspected I may have my CG way too far back.
If you set it up with the cg like in the directions it will do what the video on Hobby Lobby shows and that is climb under power hands off. You will have to fly it to the ground depending on how heavy it is and that's what I found. I had a stock one I set up for one of my kids and I experimented with it and found it actually flew a lot smoother with the cg set at the leading edge of the spar box.
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Old Jan 06, 2008, 07:06 PM
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Here's how mine flies at 31.5 oz AUW and with the cg set on the leading edge of the spar box.
Easy Star FPV Plane Flying From Pavement (1 min 56 sec)
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Old Jan 07, 2008, 12:31 AM
FPV Desert Beta Test Center
Mesa, Arizona
Joined Nov 2006
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Nice runway! I moved my CG up to 5mm behind the front edge of the spar box and all of the handling problems were solved. Surprising the CG issue for the heavier FPV ships hasn't seen more light. Thanks for the suggestion.
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