Looking to move up

[ben_beyer]

So, I started with a TREX 450 a few years ago.  I have a TREX 600N now and I really enjoy it.  I'm about to convert it to a flybarless heli and move into more advanced flight.    I really like the Synergy helis and I would like my next heli to be a Synergy.  Granted, I'm not going to buy it for a few more months at least.  I was looking at getting a N5C but the E6/E7 is the latest and greatest.  Plus, it's electric so no glow mess.  I know disc loading affects performance so I want something with a lower disc loading.  This is something that attracts me to the E6/E7 because 12S 5000 maH is not recommended.  I also would like to get at least 6 minutes flying if possible. 

So, my question is what set up would be recommended to give at least 6 minutes of flying for an E6 on 10S and 12s or even biting the bullet and going with an E7 12S?  Also, could an E7 be done on 10S 5000maH packs?

Also, which would give the best disc loading?

[stevehof]

The E7 will have the best disk loading and it is lighter than just about every other 700E. The flight times you want are achievable if you don't fly very hard. I fly my E7 in a slow easy 3D style with lots of direction and orientation changes by flip, roll and pirouette with an occasional short FFF spurt and I am getting 6:30 on 4500 mah batteries as 12s and coming down with 3.77-9 volts per cell.

[Kevin Feil]

Ben,

 Welcome to the Forum, I told you that you would be in good hands! Don't hesitate to ask any of us any questions. The guys hear are Super Knowledgeable and More than Willing to Help!! As Steve said the E7 would be the Best Bet in regards to the times you so seek. However weight or should I say the less weight you have in regards to Batteries used, if you decide to use a Bec or a Rx Battery Pack. What Esc you use. The CC 120 hv is like an ounce or two lighter than the CC160 HV. Things like this you will find Matt is Super Sensitive to.. (The Less Weight The Better) In his set up as well as other Pilots Every Ounce you can shave is Crucial. With that you will have even less disk loading. You have plenty of time to Pursue the Forum and Build your Knowledge and Look at what the other guys are running. Look for the Post named (ROLL CALL) you will find that a lot of the guy's have shared there configurations there. Good luck and once again Welcome!!

[stevehof]

Yep, the lower the overall weight the better for everything. Before I got my 4500 mah batteries I flew the E7 on 3300 35c batteries and got 5 minutes. I thought I'd do a little better with my actual flight time with the 4500's. I was hoping for 7 minutes plus. However, the extra weight of the 4500 mah batteries (1380 grams vs. 1025 grams for the 3300's) required more power to be expended just to haul the heavier batteries around. It's definitely a balancing act that each pilot has to sort out depending on the power demands of their own flight style.

[ben_beyer]

Ok, so it sounds like the E7 should be able to do 6 min and a 700 electric doesn't cost that much more than a 600 electric.  I know you have to spend a little more in servos, motor, esc, blades, etc., but the batteries won't cost much more.  Here's one burning question I have.  Is there a way to do the E7 with a 10S 5000maH set up instead of a 12S around 4000maH?

The reason why I ask is I also fly airplanes and that's how I got started in the hobby.  I enjoy both and take both a heli and a plane to the field 95% of the time.  The reason to go with 10S 5000maH would be that is a standard pattern plane electric set up.  So, if I moved to a place where pattern is popular and started flying pattern (currently I'm flying IMAC which is similar but different than pattern), I would have dual purpose battery packs. 

[stevehof]

You could fly an E7 on 10s 5000 mah. I'm not too sure about the flight times. I'd guess they'd be close to what you could achieve with 12s and 4500 mah. The only difference in price between the E6 and E7 would be the main blades and maybe a slightly larger amp capacity ESC for the E7. The rest of the components would be the same.

[ben_beyer]

Would I still use the motor for a 10S E6 (I.E. the Hacker A50-10L) but use a different pinion and an ESC with a higher amp rating like the ICE 160HV?

[stevehof]

The ICE 120HV should be plenty for that Hacker motor and I think 580KV would be fine. You're going to want around 1900 to 2000 rpm for easy sport flying and mild 3D. I don't have any experience with 10s but based on the available gear ratios I'd guess a 13T pinion will work. Hopefully, someone with more experience will chime in.

[ben_beyer]

Sweet, that makes the E7 even more attractive!

[ben_beyer]

Does anyone have a link to the recommended E6 build thread? 

I can't find it.

[stevehof]

There is a pretty good build thread here

http://rc.runryder.com/helicopter/t665156p1/

[Chris Sexton]

Here is another e7 build thread but the only difference is blade size and boom length.

http://www.helifreak.com/showthread.php?t=341748


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[ben_beyer]

I'm revisiting this yet again.  What set up would be good for an E6 on 10S or 12S to get 6-6:30 minutes flight time doing light 3D?

Would using 620 or 625mm blades be better than 600mm blades?

[Chris Sexton]

I seen Matt flying his e6 in 10s and rail 606 mains at IRCHA last year. Awesome power, stupid nimble. 12s is great but 10s is wicked as well.


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[Jean-Luc Bolduc]

E6 with 12s 4000 and 606 with 2100-2000 hs should give 6:00
of light 3d. It will depend on your flight style. I get 5 min.
at 2300hs going pretty hard.