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Atom 6HV, 6HVU and 550 Ultimate Compass Atom 6HV, 6HVU and 550 Ultimate Model Helicopter Discussion |
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06-21-2014, 11:10 PM | #1 (permalink) |
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Flight times
Didn't see a thread for this here and Curious.
What flight times are you getting with which batteries, motor, and headspeed? Today I flew my first two flights on the 6HVU and was shocked as to how much I had left in the batteries when I recharged them. Running 3300mah batteries with stock 505kv motor at 2000 rpm. Flew for 5 min and still had 65% of the battery pack left! I was flying pretty easy as it was first flights and new batteries, however, still very impressed. I could of made it to the 10 min mark if I kept flying the same way. Curious as to how long everyone else is getting and what you're setting your timers for? On a side note, for anyone else running a Castle Creation ESC, what is your max Watts you are pulling? For those flights it was a mere 3300 Watts at 75ish amps.
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06-21-2014, 11:13 PM | #2 (permalink) |
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Gens Ace 3300 mah batteries.
Five minute flights at 2020-2050 RPM. Could get another minute or so out of the packs (usually use about 60% of capacity).
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KBDD-Team Captain, JR DFA Team Pilot. Forza 450, Forza 600N, Forza 700, Compass 6HV-U, Warp, 7HV,Knight Pro,Knight 3D, Atom, Odin II, 6HV, 3D Plus, Knight 50, Chronos, Velos, Steam 550 and 600, OMP M2 (and anything else I can get my hands on...). |
06-22-2014, 12:07 AM | #3 (permalink) |
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I set my timer for 5 1/2 min at around 2200 HS and still have around 30% left when I check them But I really think it has to do with how hard you fly
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06-22-2014, 02:19 AM | #4 (permalink) |
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I get about 4.5 at 2250 or 5 minutes at 2100. This is beating on it the whole time though. Also with a 700mx and 625 radix blades.
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06-22-2014, 04:41 PM | #5 (permalink) |
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Holy crap this thing flies forever!
I was a little more rough with it today, headspeed at 2000 and pitch at 12 degrees so nothing crazy but it still has plenty of power to do anything I ask of it! 6:30 flight time with 48% left in the pack! Checked the castle creations logs on the ESC, only pulled 1750 mah in 6:30! Could probably push 8 min with these headspeeds and still have plenty of emergency mah if I fly even harder. I wasn't being to gentle with it, I was smacking it around a decent amount still! Very impressed!
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06-22-2014, 09:33 PM | #6 (permalink) |
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For reference...
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06-26-2014, 08:57 PM | #7 (permalink) |
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I am considering the Glaicer 3700mah 30c batteries for my next set of batteries. Suspecting I can get close to 9-10 min flights with these and more available amp draw.
From reading the specs it is a mere 80 gram difference between the 3300mah and 3700mah. I'm thinking that won't make a huge difference in COG. Is anyone running these?
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06-27-2014, 04:35 PM | #8 (permalink) |
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That's 80 grams per pack right? So 160 total. A little over 1/3 pound. Personally I would definately feel the difference. Depends on your flying style. I like lots of pop and super quick collective response. Sometimes I fly without the canopy and it feels much quicker just from that amount of weight loss which is probably also about 160 grams or so. Just depends what kind of flying you do. You could always test it out before you buy the 3700's by adding 160 grams along with your 3300's ( assuming you have some) just to see how it feels and if you notice the difference.
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06-27-2014, 06:10 PM | #9 (permalink) | |
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Quote:
8 min flight times on 33's is still pretty awesome!
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06-27-2014, 07:04 PM | #10 (permalink) |
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just remember though, its totally dependent on your flying style. if you dont stick bang with lots of hard collective jabs, and your more of a smooth pilot, you might not notice the weight gain at all. should actually be a bit more stable with the extra weight. should be pretty easy to test though. just take a roll of quarters and fill it up till it weighs 160 grams, then strap it down on top of your 3300's. if it feels ok to you in flight, i would say definately go for the 3700's. they will also live longer than the 3300's since they will handle amp draw better and stay cooler.
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06-27-2014, 07:12 PM | #11 (permalink) |
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28 quarters actually if you wanted to try it.
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06-27-2014, 07:14 PM | #12 (permalink) |
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Very cool, thank you!
I am not a stick banger just yet. I have a set of 3300's if I want to stick bang so May get the 3700's for the long smooth flying. By the time I am a stick banger I will probably need new batteries anyways haha.
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06-27-2014, 07:23 PM | #13 (permalink) |
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i would say get the 3700's then. assuming you can get the COG close. you might possibly need to move the esc towards the back of the frame
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06-27-2014, 10:39 PM | #14 (permalink) |
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ok, i'll try them out and see how it goes!
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06-29-2014, 03:59 AM | #15 (permalink) |
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I would recommend against the 3700 batts simply because of the CG issue. I don't think it's possible to get a dead on CG with that much weight out front. Granted, id rather be nose heavy than tail heavy. Seriously though, 8 min flight times isnt enough for you? That's well more than most people get.
Let us know if you get that to work out!
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06-29-2014, 11:39 AM | #16 (permalink) |
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I will prob just go with the 3300's. Like you said, 8 min is pretty awesome already.
In my crash I managed to bend one battery pretty bad and slightly bend the second. Are these completely trashed or is it OK to fly a battery that is a little bent up? They are the glaicer 30c's so there is no metal plates between cells, I'm thinking it is probably fine to fly them as the cells are still holding their voltage and seem to be structurally fine besides the bends.
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06-29-2014, 12:33 PM | #17 (permalink) |
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how are you powering your electronics? if you have an rx pack or your bec is powered off one 6s, i would say give the pack a few hovers and watch the voltage. connect your bec to the better pack. if it fails, you can still auto down. maybe leave the canopy off for those first few hovers in case. if money isnt an issue, just replace it. theres always a risk of it flaming. ive bent packs slightly and they lived a long happy life, but theres always a risk.
as for going to 3700's, i was assuming it was possible to get cog with them. you could test this the same way i mentioned before. move components around and add 160 grams to your 3300's and see if you can get it balanced. you would have to run only 3700's though since once you move stuff around to balance 3700's, you will be tail heavy with 3300's. |
06-29-2014, 01:09 PM | #18 (permalink) |
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I'll probably salvage the less damaged pack, the other one is more of a risk.
I could add a small weight to the tail to get CG correct and have it detachable. Just attach it when flying 3700 mah batteries. At the same time, 8 min is not anything to be ashamed of so 3300 may be just fine.
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09-03-2014, 08:34 AM | #19 (permalink) |
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Scorpion 4025-550kv, stock pinion, ?? headspeed-estimate at about 2250-2300 give or take. 3000mah packs.
3:35 timer. Land with resting voltages of about 3.72 and packs are HOT!!! lol. I do fly harder than most probably. I need a better ESC so I can run gov or at least lower HS. I don't want to pinion down as that would get me too low IMO. |
09-03-2014, 09:56 AM | #20 (permalink) |
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Another degree of pitch would change the picture too. Those amp peaks are pretty low in your data plot. I was getting double those with 2375 rpm, and 13 pitch in my old 6HV. I routinely fly at 2000-2100 and come down at 5:00 mins at about 3.7v/cell.
Dang it's a nice machine!
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