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› New Hacker A50 S12
10-29-2006 05:19 AM  11 years agoPost 281
PJRono

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Minnesota, Ya!

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I really like the power of the A50 12S on 11S w/30 gears. I just wish I had a set of the 620s to help make up for the weight gain.

If you skip me I can't play!

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10-29-2006 09:45 AM  11 years agoPost 282
stanc

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Conroe, TX

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Hey Doug, come fly with us tomorrow. You can see the 15S A123 packs in action.

PJ, hold on for a couple more weeks and the 620 blades should be here, send Gary an e-mail and ask if he can send you some.

There is going to be something interesting coming up tomorrow, will start a new thread.


Stanc

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10-30-2006 04:35 AM  11 years agoPost 283
FlyHuge

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Colleyville, Texas

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Stan, got your email to late was down south all day. The Hacker A50 is running cooler and pulling less amps. About 22-24 in hover and peaking at ~45 amps. Hotest I recorded on the motor was 160.

So whats the news ? How did the a123's work out?

- Doug

Cra$h’n with a Heli good time!

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10-30-2006 11:28 AM  11 years agoPost 284
stanc

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Conroe, TX

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The flight times right now aren't any better than the Emolis. The first two times I flew them I got close to 8 minutes, they Gary told me I was charging them wrong. I was putting to much voltage back, so charging them by hand basically and stopping the chagrer at 3.6V I'm only getting 5 minutes. When I get the LiPoDapter and can charge each pack to the same voltage, I believe they will do better. I'll find out this week. The Lipo packs on the A50 aren't doing any better than that, I believe these things are shot.

Stanc

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11-09-2006 07:22 AM  11 years agoPost 285
JIMSL

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land o lakes, FK USA

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Charger for emolis
You need an Xtrema charger! It's the only one on the market that will do the 3.6V cells. It will charge up to ten cells and is rated at i amps.
Amazing charger! 100% made in the USA.

You can see it at http://www.flyhurricane.com Retail is $239.95. Hurricane sells them for only $189.95

You're going to see some incredible writeups in the model mags about this charger probably in next month's issues.

Hottest thing to hit the charger market in a Loooong time!

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11-09-2006 12:03 PM  11 years agoPost 286
stanc

rrKey Veteran

Conroe, TX

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My MTE charger should be here any day now. I knew about this charger, but just didn't want to bite the bullet and buy another charger.

Stan

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12-15-2006 11:51 AM  11 years agoPost 287
stanc

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Conroe, TX

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JIMSL, finally received my TME charger, this is really a nice charger. Being able to set the voltage from 3.6 to 4.2 in .5 increments is nice. Not sure what good the wattmeter would do anyone though, unless I just don't understand how to use it. There is always something you can find wrong with pretty much all the chargers on the market and on this one TME didn't incorporate the ability to discharge. I signed up for there give away and got the charger at the $189.95 price and it comes with the data cable, CD and a temp sensor.
Astro Flight is suppose to come out with new firmware in January for the 109 that will charge A123 cells. I'm sure it will be in the form of an e-prom.

Hey PJRono, I removed the A50 12S so I could do a re-conversion R50 that Gary came out with that has the CF lower frames. I thought I had dropped a washer down in the motor, so I took it partially apart but couldn't figure out how to get it completely apart so I put it back together. I could see that the washer wasn't inside but I shook the motor and heard something rattling around. Da, think that might be the bearings without any grease?

Stanc

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12-15-2006 02:10 PM  11 years agoPost 288
JIMSL

rrNovice

land o lakes, FK USA

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Xtrema
The watt meter is used just like any other watt meter. It replaces a separate $55 watt meter you would buy anywhere. I hope you are using a watt meter on a regular basis to see what kind of amp draw your motor is placing on your batteries, etc. I advise all people new to electrics that the first thing they should buy is a watt meter. A lot of people blow up a battery or motor by not paying attention to how many amps their setup is drawing.

I use my Xtrema all the time and absolutely love it! You got one hell of a deal if $189.95 included the data cable! The data cable is a $35 extra!

I'm not sure if TME is planning to add a discharge function to the charger or not. You would have to ask them. It would be a good addition to be sure!

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12-15-2006 03:42 PM  11 years agoPost 289
PJRono

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Minnesota, Ya!

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Stanc-If the bearing is the original from Hacker that's probably what it is. So far my 24K rpm bearing from Gopher is still holding up. I live up here in Minnesota so I haven't been flying too much lately cause it's freaking cold!!!! I do run out and get in a flight at least twice a week though. The transmitter mitt is a godsend for us up here! I wouldn't fly my helis at all until I got one. My fingers would just get too cold and couldn't feel the sticks.

JIMSL- a whattmeter is a great tool, but useless in a heli. What you really need is a Data Logger from EagleTree or B&B. It can show you everything that you need to know- Amps, Volts, Watts, Rpm, and Temp(1 or 2 w/o rpm reading) during the entire flight without alot of added weight and for the same price!

If you skip me I can't play!

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12-15-2006 06:01 PM  11 years agoPost 290
stanc

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Conroe, TX

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I have a WattsUP but I don't think I would put the TME in one of my helis, it might not get off of the ground. I use an Eagle Tree FDR anytime I need to see whats happening.

Stanc

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12-15-2006 06:05 PM  11 years agoPost 291
JIMSL

rrNovice

land o lakes, FK USA

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Xtrema
Here's a reply regarding the Xtrema that was sent to a customer by TME:

Your concerns about not having a discharge feature are well taken. We
thought long and hard about that feature before I chose to leave it out. Our charger was designed from the ground up for Lithium based cells. To summarize, we felt that most other chargers incorporated that feature as a fallout of NiCad and NiMh chargers. Most Lithium chargers are actually reprogrammed versions of NiCad designs. Lithium batteries do not benefit at all being discharged. If a Lipo cell has a 300 life cycle and you discharge it one time, it now has 299 cycles left. We have always felt that the most useful way to discharge a battery is to fly it :-) So in practice, we believe you should run you motor down while flying and charge it half way up with our storage feature charge. Same thing, except better for your battery.

Having substituted a much more useful feature ( a wattmeter ), a lot more versatility is achieved. For example. if you are still determined you want to discharge your battery you can always put a load on the wattmeter and watch your battery go down to where you want it. You can use an inexpensive power resistor from radio shack or just use your motor. The good news is that there are so many real world problems that are solved with the use of a wattmeter. For Example: Why is my motor getting hot? Am I exceeding the current specs or does the motor have a short? Why does my controller cut
out? Are my batteries holding up under load? Did this new prop load my system more or less than the other one? Am I getting the power I paid for?

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12-15-2006 07:27 PM  11 years agoPost 292
stanc

rrKey Veteran

Conroe, TX

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He is probably right but only about using one of the cycles. I think everyone that has used LiPo bbattery packs knows that these batteries need to be broken in before they are actually used in an aircraft where you are drawing a lot more amps than by discharging with a charger.

I can't believe that someone would actually use this charger in a Heli or an Airplane for a watt meter. I bet this thing weighs close to 2lbs. if not more. If you did use it in a Heli, you wouldn't be seeing what the amps and or watts would be without the extra weight of the TME. Am I missing something here?

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12-15-2006 07:55 PM  11 years agoPost 293
JIMSL

rrNovice

land o lakes, FK USA

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Xtrema
You don't put a watt meter inside anything! The watt meter, even the separate ones, are used on the ground to collect data. You put the watt meter (or Xtrema watt meter leads) in between the battery and speed control. It will tell you how many watts, volts, etc, you are drawing at various throttle settings.

Here is a link to where you can read about what a Watt meter does.

http://www2.towerhobbies.com/cgi-bi...?&I=LXLMV0&P=ML

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12-15-2006 10:51 PM  11 years agoPost 294
PJRono

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Minnesota, Ya!

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JIMSL I know what a wattmeter does-If you can't put the wattmeter in the aircraft, what good is it? For an airplane it would be OK to run up on the ground. Let's see you do that with an E-raptor and live! The whole point of a wattmeter is to get readings from when the aircraft is in the air. Oh my friend and I have strapped an AstroWattmeter to the side of a heli and he bravely walks up to the hovering heli to read it, but that's real safe too!

If you skip me I can't play!

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12-16-2006 05:03 AM  11 years agoPost 295
stanc

rrKey Veteran

Conroe, TX

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The watt meter that is incorporated in the TME charger is no doubt for planks, not Helis. You would have to set the Heli on the work bench and remove the blades to use it and then you wouldn't gain any usable information from what you read on the watt meter. That's why the wattsup in the link you posted is so small, you place it in the Heli and fly it. Using the FDR you can get real-time data of the entire flight. By adding a temp sensor and or a tach sensor to the FDR, you can get even more useful data.

PJ, I flew the CF conversion today with 10S2P 4200 TP packs. HS a little lower than what I'm use to (1980) at 100% but it flew really well and for 10 minutes, used around 3000 mah. Probably could have gone for a couple more minutes without using to much.

Stanc

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12-16-2006 01:40 PM  11 years agoPost 296
PJRono

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Minnesota, Ya!

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What gearing were you using with it? And were you using the Hacker?

If you skip me I can't play!

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12-16-2006 01:48 PM  11 years agoPost 297
stanc

rrKey Veteran

Conroe, TX

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The Hacker needs a bearing. This is whats in that heli 95T, 9T, Z50A-600 (565 Kv) and one of TPPacks SAE controllers.

Stanc

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12-16-2006 10:05 PM  11 years agoPost 298
PJRono

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Minnesota, Ya!

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600 or 620 blades?

If you skip me I can't play!

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12-17-2006 01:25 AM  11 years agoPost 299
stanc

rrKey Veteran

Conroe, TX

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600 right now, I really don't like NHP blades and I don't know anyone else making 620s. You would think that TT would have shipped their 620s by now since the Titan has been out as long as it has.

Stanc

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12-18-2006 04:38 AM  11 years agoPost 300
FlyHuge

rrApprentice

Colleyville, Texas

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Can any of the new Z-powers be used for a drop in replacement to the Hacker A50-12S or should i just replace the bearings? I am going to use my e-raptor for a scale airwolf.

- Doug

Cra$h’n with a Heli good time!

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