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› Best of the electric Bigs
03-09-2012 07:14 PM  6 years agoPost 1
IMAGrandpa2

rrNovice

Calgary, Canada

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Hi Gents,

Although time is rushing by, I think I have one more build left in me. I gave some thought to the Trex 700 E but decided that I better check with you before launching into the void. Can you give me your recommendations on the best value for money approach. I should mention that it will eventually end up in a scale body of some kind. One last thing, not Vario, just too expensive for me!

Thanks for your thoughts,
Eric

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03-14-2012 04:26 PM  6 years agoPost 2
Band1086

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Kennewick, Wa. USA

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There are a lot of choices out there now, but probably the Trex 700 E would be fine. It's very common and can be made into a 750-800 easily and fairly cheaply if one wants. Very difficult question anymore, but the TR's are pretty good value for money.

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03-14-2012 06:39 PM  6 years agoPost 3
IMAGrandpa2

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Calgary, Canada

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Thanks very much for your comments.

Eric

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03-16-2012 05:02 AM  6 years agoPost 4
Stephen Born

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USA

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+1 on the T-Rex 700. The availability of parts are stocked everywhere. Especially here on RR.

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04-23-2012 12:00 AM  6 years agoPost 5
Leardriver

rrNovice

Bridgewater, NJ

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I just put my money down on a Synergy E7 Kit. I know the Align heli's all fly decent but I honestly think the hardware is awful. Last one I built (t-rex 600 nitro) pissed me off before it ever got off the bench. It wasn't that it didnt go together well as far as part fit, it was the freakin hardware! I have built countless heli's dating back to 1990 and was a field rep for a manufacture in another life...point is I "think" I have a good feel for these things.

Anyway, I know the T-rex flys well...truthfully they all do these days! With modern electronics I believe the field is fairly level as far as overall performance.....with the exception of one area....Weight! Unfortunately physics count and weight matters! Synergy is one of the lightest of the new 700 class. So between the soft hardware and the weight it just wouldn't be my choice.

The good news is is that all the modern 700's fly well. Good luck with whatever you choose.

Leardriver

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04-23-2012 01:51 AM  6 years agoPost 6
Raptorz499

rrKey Veteran

NJ

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^^^well said! I had the same recent issue with an Align build and that ended it for me. Opted to go for the Whiplash which is quite an amazing heli.

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04-24-2012 10:02 AM  6 years agoPost 7
yannick

rrVeteran

South Korea

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The MAIN question you should ask yourself is do you want:
- a light setup for low revs with the 4000 mah range batteries
- a hard setup for High revs, huge shaking with 5000 mah batteries minimum.

In my opinion, this is the first question you should think about, the heli, motor, esc, batteries, and even charging principle you will chose will directly depend on that...

As an example, if you go for the light setup, you can choose a lighter machine. If you go for the hard and heavy one, you'd better go for machines that are able to cope with that (Logo 700, Trex 700 i believe is in this cathegory) as a light machine will suffer too much...

At the end it is up to you but a bad choice will really disapoint you.

As an example, my first big electric was an Aurora. I had the hard setup with rx Battery with griphon regulator, 5100 mah 12s... It was heavy but with 2150 Rpm it was a beast... for 4 minutes of my flight style. But the machine and batteries were suffering a lot (gears, bearings, etc...)
So I changed everything. I put a Jive120, used the Bec, and used 4000 mah. This changed the machine completely and I had the same reactivity with 1900 rpm. and i had almost the same flight time, but the machine was sooo much lighter and easyer in the air.

I did the same on my ENV after and had the same result...

So unless you really want one of these 2200 rpm beasts that will kill a 5000 batt in 3 mn, you may want to think about it...

Another thing to consider is that for the same flight time, you only recharge a 4000mah pack instead of a 5000 so the charge time at the field is shorter (and the packs cheaper...)

My 2 cents only...

cheers

Is it me or this time the ground was higher than last time??

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04-24-2012 10:30 AM  6 years agoPost 8
Leardriver

rrNovice

Bridgewater, NJ

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I honestly believe in most cases lighter is always better. Takes more "energy" to both start a maneuver AND stop it with a heavier machine. Unlike a nitro version..an "E" machine can be varies from flight to flight with a simple battery change and the difference can be significant.

There are quite a number of threads on here where guys with numerous machines have weighed them on same scale empty an it is pretty educational to see the actual weights of them side by side. In the right hands they ALL perform well, but fat is fat and gravity doesn't take a day off! The more weight with equiv disc loading is going to degrade flight performance overall no matter how you slice it. The bigger question is whether or not it is going to matter to you or not. It might not be apparent to you at first but sooner or later it is going to be very obvious, especially if you fly it back to back with a heavier/lighter setup. Again, lots of variables but IMHO it matters.

Leardriver

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04-24-2012 11:46 PM  6 years agoPost 9
Rsams

rrApprentice

Fort Dodge, IA

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I built a synergy e7 and we went for the heavy high rpm let her rip flying. I am not dissappointed that we did that but I think that if it was to be done over again I would get like a quantum 4530 motor or something like that which is light. We used the kde 700-495 and that thing is a beast but does weigh too much. But back to it here I would consider a 120 esc of some sort and some 10 or 12s 4000 batteries. That would keep the weight down some and help you run a little lower headspeed. We are haven to run ours at 2250 to make it perform well. We are getting about 4 1/2 min flight time on it but I am running a reciever battery so that dont get used in powering other things. I would prolly set another up as an e6 also. The tail boom is not that much shorter and neither are the blades. I would look hard at the synergy as it is a very nice machine and is durable. That and with the parts sent it can either be a 600 or a 700 machine. All depends on what you want.

Ryan,Team JR, Team Morgan Fuels, Team KDE Direct, RCBearings.com Tech Rep

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04-24-2012 11:55 PM  6 years agoPost 10
pctomlin

rrVeteran

Texas

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Another great 700 to look at is the Rave Ballistic FSO.

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04-25-2012 12:13 AM  6 years agoPost 11
OICU812

rrMaster

Edson, Alberta, Canada

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Now that the Torque Tube kit for the E7 Synergy is out, and if it proves to be reliable then it is a selection. I am waiting on my E7 TT kit as well as the belt was not meant to be in the E7. You have many choices and by the end of the summer you will have many more as well, it is getting to be a very busy market indeed.

...Once upon a time there were Nitros, flybars and frequency pins...

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04-25-2012 02:35 AM  6 years agoPost 12
Leardriver

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Bridgewater, NJ

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I believe that there is a kevlar belt for the Synergy E7 which I believe is going to settle the belt question once and for all. I have the torque tube coming but I intend to put it together with the new belt first (assuming its avail) and run it to see how it does. I honestly have confidence that the belt will hold up just fine and cause no drama. I do lean toward the TT but there is nothing wrong with a belt. In fact the belt is a bit more forgiving in a number of areas.

So either way....Synergy looks to be a great choice overall! And Matt Botos is very active in regards to support! That is worth a lot! When the guy that really did design the thing is hangin around and making himself available...that is huge!

Oh...and the Torque Tube conversion only adds 1.4oz to the helicopter! That is incredible! Anyway....for what it's worth.

Leardriver

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04-25-2012 03:23 AM  6 years agoPost 13
Rsams

rrApprentice

Fort Dodge, IA

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You can use the logo 770 kevlar belt on the e7. That is what I have on mime and it works good. You can get it from readiheli.

Ryan,Team JR, Team Morgan Fuels, Team KDE Direct, RCBearings.com Tech Rep

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04-25-2012 03:29 AM  6 years agoPost 14
Leardriver

rrNovice

Bridgewater, NJ

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Matt has a new Kevlar Belt for the E7. I would just contact him directly through the Synergy website. I know guys are using the Mikado belt with success but I would give the one Matt has a shot first.
PaulP

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04-25-2012 04:14 AM  6 years agoPost 15
OICU812

rrMaster

Edson, Alberta, Canada

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Paul, been there done that, I've had the E7 since it first came out btw.. I ran Mikado 600se belt yes it helped. The boom is small, too small... the TT is "the" answer I won't run e7 with belt period anymore and will not attempt so.

...Once upon a time there were Nitros, flybars and frequency pins...

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05-15-2012 06:14 AM  6 years agoPost 16
00boto

rrApprentice

Kennesaw, Ga

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Paul P,

If your collective management is decent you wont have any problems with the E7 Kevlar Belt. Let me know if you need any help with the setup. Check out Jan Erlebach beating on the belt E7.

Watch at YouTube

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05-15-2012 08:21 PM  6 years agoPost 17
KC

rrElite Veteran

WA

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Awesome vid!

When you say "best" ya know that's opening wide ....

#1) Henseleit TDR....it does whatever you want, lightest most rigid heli money can buy, a true pure piloting experience

#2) Logo 600-3d.....biggest 600 and only two inches shorter than a trex 700 but it easier to see. Bang for the buck.

Havent tried an e7 yet but I wouldnt turn it down! All the 700s mentioned in this thread will give you your money's worth but the distinguishing factor is something you only learn to understand by owning and flying a bunch of 700s instead of listening to us.

if you want to still listen, I think the TDR is tops because it is light and is designed by a guy who does what he wants, they are hardly marketed, they aren't cheap, and the only people knocking them need to keep rocking them.

The TDR would be my last choice for an aggressive flyer though, I hate crashing helis like that, depressing. A logo 600 or trex 700 is a good proxy for it.

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05-15-2012 08:46 PM  6 years agoPost 18
philip 01

rrElite Veteran

ft worth

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Look real hard at the MA Whiplash E. No upgrades needed.

Have been flying one since the first kits were available in November.

Very solid and maintenance free. Built like a truck and flys like a dream. After 15 years of flying helis I can say this is a major winner.

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05-16-2012 01:50 AM  6 years agoPost 19
BladeStrikes

rrElite Veteran

Shelby TWP,Mi

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Im pretty sure my next 700/90 size electric will be the Synergy E 6/7 ..I really like fact that you have the option of building it as a 50 or 90 size..If $$ gets tight,turn it into a 50 and put the 90 stuff away..Its also a very sweet looking kit and VERY quiet.
Heres my buddys E7 ..Its a power house and he doesn't even run high headspeeds.

Watch at YouTube

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