Originally posted by Aros.MotionRC
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Official Freewing Twin 80mm/90mm A-10 Thunderbolt II Thread
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Originally posted by crxmanpat View PostIt's not really about the C rating of your lipo, but how many amps of power it can safely provide without voltage sag. For example, one of the packs I will be using is the Turnigy Graphene 6S 4000 45C. My testing shows that this pack is capable of safely supplying 120 amps of continuous power without issue (it's a true 30C pack, so 30 times 4000mAh = 120 amps). The ESCs in this bird are rated at 100A, so I'm assuming the actual unloaded amp draw on these is somewhere in the 90A range. So I have no worries that my packs will get damaged using them in this bird.
I also plan on using the Roaring Top 6S 5800 35C. I know for a fact that these packs perform extremely well in the F-14, so the assumption there is that they will also perform well in this A-10 as these fans are 9-blade versus the 12-blade in the F-14. I don't have any of these packs yet (getting 4 in the mail on Saturday), so I have not tested their true C rating. But from what I've seen and heard, they are excellent packs. I will put them on my ESR meter this weekend.
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I'm already there in bed with a bad cold. My sound bite in the video of my LX A-10 a few years back. The sound bite is from a live fire exercise with special recording equipment. Don't forget to turn up the volume and bass.
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Originally posted by Flash Jorden View Post
Don't want to hijack the discussion, but had a question. How do you test and measure the true C rating, or amps continuous power of your batteries?
http://www.propwashed.com/graphene-l...ormance-tests/
And similar for capacity rating. I find that when a datalog shows about 60% of the rated capacity has been expended, my cells are already at or even below 3.8v. How low do you want to go? Myabe I could use 100% of capacity,but I'm sure it would harm battery life, and more importantly, I would be finishing dangerously close to the edge of the cliff in battery voltage. I don't ever want to fly or land in that condition. So is the battery really achieving its capacity rating? Again, there is no industry standard test for this.
I suspect that any "harmonization" on labeled specs in the industry is at least partly due to the fact that there are fewer actual manufacturers than there are brands. But that's just my speculation.
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Originally posted by downwindleg View PostHey Clearblue and Pogo, just wondering if you ever got the canopy mechanism from Banana Hobbies and if so, what are your thoughts. Personally, I'm kind of dead in the water 'til I get a spare canopy/cockpit part to play with. Just thought I'd check in on that, Brad
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Originally posted by Clearblue View Post
Hey there Brad. well..... BH back-ordered it on me! :Angry: It was shown as " in stock" when I placed the order? Funny how that works. And So I don't have it yet. They say late March???? I did find another one, but it in China, so probably a month to get it also? Playing the waiting game for now. But as you have said, until the parts are available you're at a stand still. If mine gets here before my FW, I'm going to mock up that one with the light ply and pin's for the front end.
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Originally posted by Flash Jorden View Post
Don't want to hijack the discussion, but had a question. How do you test and measure the true C rating, or amps continuous power of your batteries?
PRC Home - FPV Racing Drones, Fat Shark, Tiny Whoop - iCharger, iSDT, & FMA Battery Chargers - Mean Well & Iota Power Supplies - ProgressiveRC
In fact, I just used it to test some new Roaring Top 6S 5800s. I need to let them soak in 73° temps for a few hours, but right now looks like they are good for 100A continuous, which is perfect as I'm going to use them in this and my F-14, both of which pull less than 100A at WOT.Pat
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Originally posted by Clearblue View Post
Hey there Brad. well..... BH back-ordered it on me! :Angry: It was shown as " in stock" when I placed the order? Funny how that works. And So I don't have it yet. They say late March???? I did find another one, but it in China, so probably a month to get it also? Playing the waiting game for now. But as you have said, until the parts are available you're at a stand still. If mine gets here before my FW, I'm going to mock up that one with the light ply and pin's for the front end.AMA 424553
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Hey Clearblue, back when I posted the pictures, video, and sketches of the canopy mechanism, I ordered one right away in case there was a run on them. There may or may not have been a run but it sounds like ColtPilot and or RCjetdude,THE ACE, might help you out. Actually, from that standpoint, I'm an ACE several times over.LOL Anyway, that's the part I love about this forum, and the hobby in general, is so many people stepping up to help each other out:Cool: not to mention the commeraderie .Also,RCjetdude, if you wind up engineering a new mechanism for the canopy,"we" will be very interested in what you come up with. And, because it's a group effort, I/we will gladly share our findings as well.:Thinking: What ever comes out of all this head scratching, we will all be winners:Win:so onward and upward, Brad
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Coltpilot and rcjetdude, thanks I just might take one of you up on that offer. Brad, you are absolutely correct. Most of the guys in this thread and others are good people! And having traveled around to a few fun flys and big bird meets? Most of the people in this crazy hobby are truly helpful and curious folks. I can't say that about a couple other groups I belong to!
Jim
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Originally posted by Clearblue View PostColtpilot and rcjetdude, thanks I just might take one of you up on that offer. Brad, you are absolutely correct. Most of the guys in this thread and others are good people! And having traveled around to a few fun flys and big bird meets? Most of the people in this crazy hobby are truly helpful and curious folks. I can't say that about a couple other groups I belong to!
Jim
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Originally posted by downwindleg View PostHey Clearblue, back when I posted the pictures, video, and sketches of the canopy mechanism, I ordered one right away in case there was a run on them. There may or may not have been a run but it sounds like ColtPilot and or RCjetdude,THE ACE, might help you out. Actually, from that standpoint, I'm an ACE several times over.LOL Anyway, that's the part I love about this forum, and the hobby in general, is so many people stepping up to help each other out:Cool: not to mention the commeraderie .Also,RCjetdude, if you wind up engineering a new mechanism for the canopy,"we" will be very interested in what you come up with. And, because it's a group effort, I/we will gladly share our findings as well.:Thinking: What ever comes out of all this head scratching, we will all be winners:Win:so onward and upward, Brad
Tom
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Don't be saying June. Think positive. Late May and maybe we'll get lucky with an early arrival.My YouTube Videos https://www.youtube.com/channel/UCrz...4Q-xrOOtP2C-8w
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Originally posted by Aros.MotionRC View PostYa never know. ;)
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