Trex 600 with A123 cells

[WillJames]

Performance on the vids looks like the Li-Mn cells we tested, they are rated at 50C sure, but do they deliver the sustained high amp draw. I know the Li-Mn did not unfortunately. Ratings can be very misleading, proof is in how they fly.

In my experience with my E-Machines, the only substitute for weight is MAH and even then the strain on all the rest of the components goes way up as weight goes up. I just don't see the heavier A123 setups even if they could deliver the amps like the Li-Po's performing as well at a lot higher weights and being as fun to fly at the higher weights. For instance my Ion-X. At 12.5 pounds where it started with 5s4p 8880 packs it flew good. At 10.4 pounds with 5s1p 4350's, it is FUN FUN FUN FUN FUN. In the Ion-X, there is no substitute to keeping it light, period.

I guess if you don't know what the machine flys like light, you don't know what you are missing???? Not sure.

[WillJames]

If you see vids of the A123's please post links here rjg.

Unfortunately, I can't keep up here so I definitely don't have time to dig through a HUGE thread looking for needles in a haystack between the boilerplate. I definitely do want to see the vids and hope to find some!! :smokin:

[spork]

Can someone tell me the weight of a T-Rex 600 with NO batteries, and also the blade length?

Thanks.

[spruce]

http://video.google.com/videoplay?docid=7075736556415808421


Btw your a little late to the party Wayne (you feel better now that you got your 2 cents in ?), I've said it 1000 times. Ban away, I could care less. :roll:

[rjg]

Can you give us some information about the setup of this machine or point us to where we can find out more?

[WayneBrown]

http://video.google.com/videoplay?docid=7075736556415808421


Btw your a little late to the party Wayne (you feel better now that you got your 2 cents in ?), I've said it 1000 times. Ban away, I could care less. :roll:
suits me. We are better off without you.
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I guess You mistook my advice for something else.
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Attack one Admin, well okay... Ignore two more, not okay.
Take your agenda elsewhere.

[4cyclic]

Well I had a few flights with a 7s2p M1 pack and 13t helical pinion, stock motor. I had to split the pack with a 4s1p under the main gear and the other 10 cells in a brick up front. Cg is spot on.

6 1/2 minutes to put back about 4000 mah out of 4600 mah capacity. Pack and stock esc was around 80 deg. f. Motor 110 deg f. Radix 600 blades.

Basically it flew quite well, able to do pretty good light 3d moves.

pros:

fast recharge: 35 minutes on TP1010 charger at 7.0 amps. If you have two packs, you can almost fly all day long.
cheap packs if you're good with soldering iron and willing to spend time building packs. about 150 par pack, including shrink and TP pigtails balancer leads.
Good sport performance.
Charging Safety and cell crash worthiness plus it's easy to replace damaged cells
Cycle life: jury is still out on this one.

cons

added weight: mine is at 8 lbs 4 oz compared to 7 llbs 8 ounces with a TPe- 6s 5000. Flying is not as nimble. You can feel the weight.
Hard 3d not possible, as HS decays too much as you go deep into pitch or cyclic.

I also think the best power setup will be a 15s1p pack with a suitable motor and 12s esc. I will have to try that next. :twisted:

Jean-Luc