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Other › L400 stretch questions and ESC..
02-20-2011 03:56 AM  6 years agoPost 1
saitoflyer

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L.A. CA

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I got L400 w/ 9257 cyclic servos not 9650 and CC ice 75 ESC..I think 75 esc is not up to the task so i want to upgrade to better esc.

Would going to YGE from Protos 60amp w/ 3.5amp bec be good enough??

Also, Im thinking of stretching this to 520mm blades. (logo 10). What parts do I need for the conversion and which size batt? I currently have 40C 2650 6S turnigy's. Thanks.

is that a new heli? Oh no honey, its the same one w/different stickers.....

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02-20-2011 04:01 AM  6 years agoPost 2
mmc205

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PA - USA

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the 9257's will probably not cut it. I helped my buddy rnkasp set up his logo 400 stretch. I can tell you that he is running a ice 75, 4020-1100, 6s 3000 to 3300, 5245's on cyclic, bls251 on tail and 523's and it flies like a dream. great power, very fast, but very light. the ice 75 should be fine. we flew quite a few flights ranging from sport to 3d and never had any esc issues. if you already have the ice 75, i'd say go for it, unless your doing very hard 3d.

***Logo 600 vbar***Henseleit TDR vbar***

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02-20-2011 04:06 AM  6 years agoPost 3
dxflyer

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Bay area, California

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Are you using the internal bec? I would not use the internal; just buy an external one. I have had ok luck with the 10amp bec from castle, but if you want to better; then go with western robotics bec. For batteries I would use 6s 4000 mah for swinging 520 size blades. I guess it also depends on your flying style. From what I hear the YGE is a very good esc; you could try it but I would not use the internal bec especially if you are going flybarless on this; vbar??? I hope this helps.

Logo 600 12S vbar, Logo 500 vbar
Protos FBL vbar

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02-20-2011 04:15 AM  6 years agoPost 4
saitoflyer

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L.A. CA

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I have YGE just laying around so was thinking of using it..

I also have T550E and those needs 6S 5000's and I also have Protos stretched which require 6S 3000 so basically I want to run the Logo using these batts. I hate to have different batts for different helis. I was using internal bec from CC 75 but never really had problems, and also on the yge esc used internal bec w/o prob. as well.. But I could use external just to be on the safe side.

On the servos, If I use those hitec that you have mentioned, would it fit the frame which is meant for 9650's?

What parts do I need to stretch the 400?

All my FBL units are beastX, Used to be V.bar fan but the blue line's disspointed me so I switched..

is that a new heli? Oh no honey, its the same one w/different stickers.....

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02-20-2011 04:26 AM  6 years agoPost 5
dxflyer

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Bay area, California

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I think the 6s 3000 is fine for now. The 6s 5000 might be too heavy but it would not hurt to try. All depends on your flying. On my stretched protos I use the cc75 and have not problems with it; I was peaking with about 130amps. I use an external bec with it though. Since you have the cc75 you can use that with the extenal bec. I believe the 5245 are the same size as the 9650. I had the 9650 on my protos and replaced them with the 5245mg.

Logo 600 12S vbar, Logo 500 vbar
Protos FBL vbar

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02-20-2011 05:07 PM  6 years agoPost 6
MrNiceGuy

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Melbourne, FL

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Ok here's what you do. For the servos you can get the metal MKS gear set. http://www.hobbycity.com/hobbycity/...?idProduct=6757 This will give you the same gear ratio as the 9650s (9257 and 9650 is basically the same servo except for the gears.) This will give you more torque and metal gears.

What motor are you running? I was running a 1100kv Z-30 on mine with 500mm and 550mm blades. The 75 amp ESC is gonna be a little close. I was running a 75 amp esc when I was running 500s and it did OK but when I started running 550s it was getting extremely hot. I then tried a CC phoenix 80 and it also would overheat. I got a CC Ice 100 and it barely gets warm. I would not even attempt to use a 60 amp ESC. I have run the BEC on the Ice 100 with no issues but some people here advise against it. It's your choice.

With the 550s I've run up to 6S 5000mah packs(had to mod the frames slightly). I've run as small as 3750s. 4000s work really well too. 3000s may be too small depending on what motor you are running. You might have balance problems too with that small of a pack.

To stretch it you need the tail boom and rod http://www.readyheli.com/MIK2769-Ta...10_p_35208.html belt http://www.readyheli.com/MIK2766-Dr...10_p_35207.html I would also recommend upgrading to the mod.07 gears. You'll need pinion, main, and tail drive gears.

Let me know if you need any other help. I have a lot of experience with this airframe and am happy to help if I can.

Yesterday is History, Tomorrow is a Mystery, Today is a GIFT

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02-21-2011 12:29 AM  6 years agoPost 7
saitoflyer

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L.A. CA

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I dont intend to run 550's but rather 520's or so. Can I go about using 6S 3300? I saw one at a local hobby shop and found out that this is a lot smaller and lighter than turnigy's 40C's. I was looking at 45c's from Turnigys.

is that a new heli? Oh no honey, its the same one w/different stickers.....

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02-21-2011 02:07 AM  6 years agoPost 8
saitoflyer

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L.A. CA

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forgot to mention.

I already have .7 mod and 3026 1400KV motor. Can I still use this motor on the strecthced version?

is that a new heli? Oh no honey, its the same one w/different stickers.....

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02-21-2011 04:33 AM  6 years agoPost 9
MrNiceGuy

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Melbourne, FL

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You should be alright on 3300s. I'd personally like a 3700s or bigger for a 520 bladed bird but that ought to work OK. It will be a light set up though.

As far as the motor goes you are at a higher KV than most use for a Logo 10 on 6S. Usually you want to use about an 1100KV motor for 6S. However if you use governor mode you should be able to reach 2200 with a 12 tooth pinion according to the castle software. My only concern is that this motor was really designed to swing much smaller blades and I do not know how it will work with 520s. Since you have it, you might as well try it out though. Since you are jumping to a larger class of helis I would recommend a motor made for larger birds such as the Scorpion 4020-1100KV or the Tonic-X Z-30 http://www.helidirect.com/tonicx-z3...-fan-p-6013.hdx I ran one of these in mine with 500mm and 550mm blades and it did quite well. I'm currently running a Castle Creations Vertigo 3434-1100KV and it has more power still. Unfortunately they are not making any more of the Vertigos at this time.

Yesterday is History, Tomorrow is a Mystery, Today is a GIFT

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02-21-2011 06:44 AM  6 years agoPost 10
llbr22

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Oakland, CA

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3700's are the ideal size I think.I usually run 4000's. I sometimes run a 3300 on my stretched 400 and it's pretty light.. but only 4min flight times.

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02-21-2011 06:57 AM  6 years agoPost 11
Lovelight

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Bellevue, WA

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Any problems gettin 3700 or 4000 sized batteries into the frames? Which ones fit best?

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02-21-2011 02:08 PM  6 years agoPost 12
MrNiceGuy

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Melbourne, FL

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Never had a problem with getting 3700s or 4000s to fit. There is actually quite a bit of room. The only batts that were a real close fit were Turnigy 5000s. They just barely fit after I shaved down the inside of the frame some.

Yesterday is History, Tomorrow is a Mystery, Today is a GIFT

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02-22-2011 02:37 AM  6 years agoPost 13
Lovelight

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Bellevue, WA

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Hmmmm . . . so is the idea that the batteries never have to sit so far back they hit the shaft? I have 3300s and they clear the motor shaft but I can't imagine a bigger battery being able to clear so I imagine they must sit forward of the shaft.

If I can get a bigger battery I would probably start looking at the 3700s really hard. That sets me up for a stretch 400 and a 600 on 12s down the road.

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02-22-2011 03:20 AM  6 years agoPost 14
llbr22

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Oakland, CA

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I bought a Turnigy 4000mAh 6S 30C
http://www.hobbyking.com/hobbyking/...idProduct=15015

I felt it was a bit tight, but turned on its 'side' it fits fine. However I don't like the weight (not bad, but a tad heavy). I prefer the weight of these Turnigy nano-tech 4000mah 6S 25~50C:
http://www.hobbyking.com/hobbyking/...idProduct=11929

Fit's perfect..and for some reason I don't seem to be stressing out the lower C rating on my setup.

But like yourself, I'm happy that I could use these all for a future 600 if I decide to go that route.

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02-22-2011 05:27 AM  6 years agoPost 15
CalmAir

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Camarillo, Ca.

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I too am building a L400 stretch. I have an align BL600M 1220kv and a scorpion HK-3026 1400KV. I want to swing 550's and was thinking of using the 600M? Any opinion's?? my esc is a Koby 70, with beastX Do I need a larger esc also?

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02-23-2011 03:49 AM  6 years agoPost 16
MrNiceGuy

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Melbourne, FL

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I too am building a L400 stretch. I have an align BL600M 1220kv and a scorpion HK-3026 1400KV. I want to swing 550's and was thinking of using the 600M? Any opinion's?? my esc is a Koby 70, with beastX Do I need a larger esc also?
The 600M would be the motor I'd use if I had to chose between those two. It's closer to the KV you would want on a 550 bladed bird (1100kv is optimal) on 6S. You definitely want a bigger ESC. I use a CC Ice 100 and it works very well. I tried to run an 80amp ESC and it got hot enough to shut down. You might be able to get away with a 70 amp ESC if you went 500mm blades but not 550s. Even then you might be stressing it quite a bit.

Yesterday is History, Tomorrow is a Mystery, Today is a GIFT

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02-27-2011 10:33 AM  6 years agoPost 17
Wogboy

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Tamworth, Australia

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removed

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02-27-2011 11:59 PM  6 years agoPost 18
saitoflyer

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L.A. CA

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im thinking of using 520 blades.. 550 is kinda too much I think for 3700 6S batt..

is that a new heli? Oh no honey, its the same one w/different stickers.....

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