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Main Forum - Helicopter Talk R/C Helicopters and the people who fly them. VENDOR TOPICS DO NOT GO HERE. Full Scale Heli threads go in OT please |
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03-29-2012, 10:55 AM | #1 (permalink) |
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Join Date: Jan 2011
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Applying stickers to blades?
Ok, so I have my set of SAB 693's (red black and white) and they came with some neat stickers.
I checked the balance... PERFECT, checked the CG, PERFECT... Question. I know you need to apply them in the same spot, but my question is when you apply them, can you apply on the leading edge or trailing edge? I was going to try to devide them between the top or bottom just to make sure I can see the disk better on cloudy days. |
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03-29-2012, 11:46 AM | #2 (permalink) |
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I'll go around the leading edge, but not the trailing.
If possible I stay close to the blade's CG
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Outrage Fusion 50 FBL / Futaba 8FG / Beastx / Scorpion HK4025 |
03-29-2012, 12:07 PM | #3 (permalink) |
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If I put the sticker on the blade tip, would it still have the exact same CG? Just located differently if I am not mistaken.
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03-29-2012, 12:30 PM | #4 (permalink) |
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it will be ok, I'm just anal
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Outrage Fusion 50 FBL / Futaba 8FG / Beastx / Scorpion HK4025 |
03-29-2012, 12:37 PM | #5 (permalink) | |
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Quote:
Adding weight to the blade tips will move the CG from it's current spot out towards the tips.
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03-29-2012, 01:01 PM | #6 (permalink) |
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yeah, I think he means.. will it make a difference aerodynamically?
as both move out, does it matter?
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Outrage Fusion 50 FBL / Futaba 8FG / Beastx / Scorpion HK4025 |
03-29-2012, 01:43 PM | #7 (permalink) |
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I have had blades with CG's all over the place... What I am getting at is will the shift in the CG make any difference when I add the stickers to the end of the baldes?
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03-29-2012, 02:53 PM | #8 (permalink) |
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Join Date: Feb 2012
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How much do stickers weight? Enough to make any real difference or are we just being super microgram anal about weight?
Just askin.
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03-29-2012, 03:28 PM | #9 (permalink) |
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Considering blades are weighed in Grams, and a stick can weigh a couple grams, your talking a couple % depending on the size and weight and these are pretty big. So yes, it can make a difference. On top of the the lenght of the blades (693) can shift the weight even more. Not so crucial on a 450, but on a 700 I would think so... IMO
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03-29-2012, 03:34 PM | #10 (permalink) |
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I think life is too short. Use thin stickers, and just go fly.
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03-29-2012, 03:42 PM | #11 (permalink) |
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If the blades were balanced before and you put the stickers in exactly the same place, they'll be balanced after. The cg may move, but by the same amount on both blades.
Put the stickers on, then check your balance. If it's still good (according to your own threshold of good) fly them. Otherwise, balance or remove.
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03-29-2012, 04:17 PM | #12 (permalink) |
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That is what I thought I didn't kow if moving the CG would have a BAD or GOOD effect on them.
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03-29-2012, 09:01 PM | #13 (permalink) |
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It wont move the CoG far enough to be detectable by the pilot, one way or the other. Just put the stickers on at the same place and fly.
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