Doozer
Junior Member
Posts: 68
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Post by Doozer on Apr 30, 2010 8:43:57 GMT -5
The CG is right on the money. Even thougth it was just a hand held test, but that's gotten me by so far. I expected as much since it was a touch tail heavy the way it was before. With the single 6S I'm getting rid of a "Y" harness, and some hook and loop straps. It's a lot easier to strap in. I won't have a chance to fly until Saturday, but I'm sure I can squeak an extra minute at least out of the increased milliamps. I'm hoping to get close to 7 minutes.
@ 5.5 minutes I was putting back around 1600 mAh +/- 50mAh. So that's close to 300 mah a minute. The goal being 80% of 2600 which is 2080 (I'll round up to 2100). I know the batteries are different but I'm thinking 7 minute flights will be do-able.
Even if I push over the 80% threshold these Hyperion batteries are pretty tough. I've used them since they first hit the market, and the two that I've been using in the 425 are over 1 year old and have many cycles on them (they were in my 450's before). I've always taken care to try to work only 80% of the battery but I can tell you I've gone beyond that threshold numerous times. By mistake, I've stored them fully charged for months.
During the summer I lay off of flying because of the heat here in Phoenix. When I think I'm going to fly the next day, I'll charge up to fly the night before so I have everything ready. I charged to fly, but then didn't fly for months and the batteries sat because I forgot they were charged. When I fired back up in October last year, I went to charge the batteries and found them fully charged and balanced. I'm not saying this is what I'm going to do again. I'm just saying that these batteries can take some punishment.
The only bad thing is, the Hyperion battery works until it dies. You'll get close to full power right up to the last milliamp. With little warning, your bird will drop out of the sky, and you might have puffed the battery. So they can be a pretty scary battery to fly if you push your batteries all the way out.
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Post by dunkonu23 on Apr 30, 2010 9:17:18 GMT -5
Then you're good to go! I asked because I was worried if it was rear heavy, you'd have to move something forward and the easiest candidate as you know is the battery. I'm happy you won't have to do that and that the 500 canopy is gonna work out fine! Great find!
I've been using Hyperions since last year, too... I've only run one down once when I forgot to turn on my timer... you stand there thinking, "Man, this is a long flight..." then boom... you're on the ground. But the battery came back strong the next time around. In my book they're worth every penny. Plus, it doesn't seem you lose power in flights like you do with other batteries.
I've got two 3S Thunderpower 45C batteries that I'm gonna try out for comparison flying with one of my other helicopters. It's gonna be interesting.
Scott
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Post by Jerrymac on Apr 30, 2010 23:21:25 GMT -5
Glad to see it worked out well. Man, you guys are gonna talk me into some of those Hyperion batts for my 425 I think. Right now I just have 2 Mega-Power 6s 2500's for it and would like to get 2 or 3 more batteries so I don't need to charge at the field.
I found some FP evolite 6s 2500's on sale for $69, but never used those so don't know how good they are. Any of you ever used Flight Power's?
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Doozer
Junior Member
Posts: 68
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Post by Doozer on May 1, 2010 1:21:24 GMT -5
I've only used a few batteries, not many at all really, but if it aint broke, don't fix it. I like the way they fly and they are now almost all I fly. I do have one Outrage NRG, but I suspect that they are relabled Hyperions.
I like the fact you can charge them 5C, though I don't have a power supply large enough for my larger mAh batteries. I can get 2C with my 6S batteries, and I have yet to 5C Charge any battery. I could with my 3S 850's, but that's still kind of scary... I've gone 4C but usually I charge them 3C. Just about everything Hyperion makes is bang for the buck good. But if you're happy and you're flying... no need to change.
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Post by dunkonu23 on May 1, 2010 14:57:55 GMT -5
I've got NRG Receiver packs for my Outrage Velocity 50. They seem okay, but I can't find charge rate info on these packs. They claim a high charge rate for their 11.1 and 22.2 volt packs but these have no data so I'm limiting them to 3C. I've been able to get a little under 5C with my 2200 3S packs on my charger and I really like that I could go all day on 3 packs! The 6S packs I can get 3C on them--I have 2200, 2600, and 3300's--so that's pretty quick, too... not the 9-12 mintues I get with the 2200 3S jobs, but 18-20 minutes ain't bad at all! Scott
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Doozer
Junior Member
Posts: 68
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Post by Doozer on May 2, 2010 13:18:48 GMT -5
Ok... Flew the 6S 2600 Hyperion for 6min 45 seconds, and put back 1993 mAh. That's about 300 mAh per minute (295). I flew slow piro figure 8's, some FFF circuits, piro stall turns, and some backwards flight. I'll set the time for 7 minutes next time .
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Doozer
Junior Member
Posts: 68
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Post by Doozer on May 3, 2010 19:57:37 GMT -5
I've got NRG Receiver packs for my Outrage Velocity 50. They seem okay, but I can't find charge rate info on these packs. They claim a high charge rate for their 11.1 and 22.2 volt packs but these have no data so I'm limiting them to 3C. I've been able to get a little under 5C with my 2200 3S packs on my charger and I really like that I could go all day on 3 packs! The 6S packs I can get 3C on them--I have 2200, 2600, and 3300's--so that's pretty quick, too... not the 9-12 mintues I get with the 2200 3S jobs, but 18-20 minutes ain't bad at all! Scott I contacted Heli Direct about the charging info on the NRG. Here's the scoop: Message: www.helidirect.com/outrage-nrgrx-2s1p-74v-2500mah-spektrumjrfutaba-receiver-battery-p-13176.hdxNo charging info. Outrage NRG 5C packs let you know that you can charge up to 5C with the packs. The RX pack linked above has no such designation and, unless I missed it, there is no charging information to be found. For me, charge rate is now a criteria for purchase. thanks for any help you can give me, Robby Date:2010-05-03 17:19:23 Name:Jimmy Message: Hi Robby, You can charge it up to 5C, but I am not sure why would you need to charger at such high rate. I have been charging mine at 2C (5amps) it only take about 15mins. So I would suggest 2-3C max. Best regards, Jimmy Technical Support Jimmy@HeliDirect.com HeliDirect.com Date:2010-05-03 20:51:17 Name:Robby Message: Hey Jimmy, Didn't say I wanted to charge at 5C, I just wanted to know what the charge rate on it was. However, I fly many different helis, and I only have one charger. I have 10 batteries for my 250 alone (all Hyperion 850's). The faster I can charge each battery the quicker I'm up and running. If I were to assume that a battery was 5C and it wasn't, that could be very very costly, if not deadly. So that's why. Thanks for the info. Robby
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Post by Jerrymac on May 4, 2010 1:20:45 GMT -5
Don't feel bad Robby. Every time I have ever asked HeliDirect a question, I either got no reply or a rather vague answer. I even 'called' them once to ask a question about some batteries, and ended up sitting there kinda scratching my head after they hung up, as I wasn't real sure what the answer meant. I do buy quite a lot of stuff from them as they seem to carry things that others don't, but their service does not rank up there real high on the list when you need help.
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Post by dunkonu23 on May 4, 2010 4:06:48 GMT -5
Hey Robby, Thanks for sharing that. Like I wrote, I've got two... I'm charging them at 3C. Fun stuff... They're not bad batteries... at $17.95 they're great! Scott
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Doozer
Junior Member
Posts: 68
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Post by Doozer on May 4, 2010 11:06:26 GMT -5
I do buy quite a lot of stuff from them as they seem to carry things that others don't, but their service does not rank up there real high on the list when you need help. Not to derail this thread too much, but yeah, this wasn't the first time I've been a little disappointed in there customer service. I said to myself "Did he just send that to me, really?" Like the 5C charge rate was on a need to know basis, or I'm some sort of dumbass for wanting to charge this battery at 5C. It's kind of arrogant for him to think that because he has no clue why I would want to charge at 5C, there must not be a good reason for me to want to know what the max charge rate is. Because I have so many Helis, I tend to put in big orders. The new HD shipping policy is hard to beat. Next day for orders over $200. I do that quite often. I have spent a lot of money with them. I'll probably send Larry (sales manager at HD) an email quoting my correspondence with Jimmy and adding a WTH comment.
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Doozer
Junior Member
Posts: 68
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Post by Doozer on May 4, 2010 21:16:21 GMT -5
Just got back from the field.... ugh... melted a gear. Well at least it looks like it. I was way up when I heard it go bad. The sound was horrible. I hit throttle hold and auto'd it down. No damage except the gear. I read somewhere... here maybe... that gear stripping was an issue. I'll take some pics and post them up later. Options? Is this why you guys go CF?
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Post by dunkonu23 on May 4, 2010 23:20:00 GMT -5
Three out of the last five orders I've placed with HD have been WAY late shipping. My fuel order sat on their dock for four days. I had to call them. I was told it had shipped the day after I ordered it, but yet there was no tracking information until after I had called. Interesting coincidence. Then I paid for expedited handling on a small order for tail drive gears on my V50... that sat, too. They refunded the expedite fee. Interesting stuff. Prior to that, I had absolutely no problem with HD. There are some things that only they carry, so I'll have to use them again, but I'm a bit wary.
Scott
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Post by dunkonu23 on May 4, 2010 23:23:52 GMT -5
Which gear?
But yeah... Any gear issue I would encounter, I skirted with Head Hunter frames--2mm CF AND a frame stiffener! Jerry made a frame stiffener for his that should get rid of flex.
Scott
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Post by Jerrymac on May 5, 2010 1:25:11 GMT -5
Like Scott asked, which gear stripped? So far, I have not stripped any gears in either my 425 or my 550, YET. They are both plastic framed. The 425 only has about 10 flights on it though.
The 550 has been flown quite a bit last summer. I have done full collective punch-outs from sitting on the ground with the 550 just to find it's weak points, but so far nothing has failed.
Sorry to hear that, glad the damage was not too bad.
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Doozer
Junior Member
Posts: 68
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Post by Doozer on May 5, 2010 9:38:55 GMT -5
It was the front main gear. The one that is meshed with the motor pinion. The motor pinion was a bitch to mesh, but I thought I had it pretty much perfect. I think the culprit is grease though. I grease my gears, and fly in a dirt lot. Not too much grass out here in the desert. I've always done this and never had an issue, but it looks like today It caused one. Anyway, here's the pics:
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Post by dunkonu23 on May 5, 2010 19:52:36 GMT -5
That is ugly, Doozer. I'm sorry that happened to you. I think you're right, though... grease is the culprit. I don't grease the gears on any of my helicopters. I think this is a case of the grease reacting with the material of the gears causing them to soften coupled with possibly too tight of a gear mesh.
The only places I lubricate in the drive train are the bearings, including the one-way bearing, but I use Triflow. A lot of people will say not to do that with Gaui OWB's because of the plastic in those, but I haven't had an issue with it after around 50 flights.
You're right about gear mesh being extremely difficult with this helicopter. As long as you had a small amount of backlash--where there is a small audible click as you rotate the gear back and forth across the pinion--you'll be fine.
I'm using headhunter heli's "Easy Mesh Motor Mount" on my helicopter. It works with the stock Gaui frames, as well. Contact Ben at: ben@headhunterhelis.com
The owner, Ben is a great guy.
Scott
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Doozer
Junior Member
Posts: 68
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Post by Doozer on May 5, 2010 21:21:17 GMT -5
Yeah, I watched you HH video the other night. You made me want one. I'll get the motor mount at least. You guys know of any good aftermarket gears or should i stay stock?
I won't be able to get to the repairs until Saturday but I'll throw up some pics. I needed to adjust my piro rates, and download all the data on the logger anyway. That way i can finish this thread off, by posting up the "How to's."
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Post by dunkonu23 on May 6, 2010 0:26:05 GMT -5
Yeah, I watched you HH video the other night. You made me want one. I'll get the motor mount at least. You guys know of any good aftermarket gears or should i stay stock? I won't be able to get to the repairs until Saturday but I'll throw up some pics. I needed to adjust my piro rates, and download all the data on the logger anyway. That way i can finish this thread off, by posting up the "How to's." Revco used to make gears for this helicopter, but after Gaui came out with stronger replacement gears, they kind of dried up. I'm using stock gears on my helicopter. You'll like the HH motor mount. It takes about 30 seconds to set mesh. I remember taking over 30 minutes to get my gear mesh right the first time with the stock stuff. It was such a bad experience that I never pulled the motor until I got the Head Hunter stuff. I honestly don't understand what could have possibly gone through the engineer's mind while designing the stock motor mount. I'm looking forward to your new How To thread! Scott
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Post by Jerrymac on May 6, 2010 1:25:42 GMT -5
Dang, that is an ugly looking gear there Robby. I am no chemist , but I would tend to agree with Scott as far as the grease on the gears causing a problem. Strange how some things that are actually made from petroleum, react strangely when they come in contact with another petroleum based product. ReadyHeli used to carry the Revco gears that Scott mentioned, but not sure if they do any more as I haven't checked lately.
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Post by billmay on May 7, 2010 14:39:11 GMT -5
I'm using headhunter heli's "Easy Mesh Motor Mount" on my helicopter. It works with the stock Gaui frames, as well. Contact Ben at: ben@headhunterhelis.com The owner, Ben is a great guy. Scott I'm on vacation so I don't have time for a long reply but just be aware that, at least with the Z20A-980 motor, the Easy Motor mount will NOT work with the stock gearing and stock plastic frame because the motor will hit the plastic frame where the servo rocker arms mount. I had to go with a 15/50/20/61 gearing to get enough clearance. Ben has confirmed this and I am disappointed that he hasn't made people more aware of this since he is the one that has claimed that it works with the plastic frame. I know everyone else seems to be pretty high on Ben but personally I was disappointed. I had to spend quite a lot of time to get it to work properly so it was far from "easy" for me. However, I will admit that once I got it set up to work properly, it does make setting the gear mesh very easy so I am not saying that I don't recommend it. Just be aware that this is not a simple drop in, at least with the commonly used Z20A motor. Bill
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