14S? pros and cons

[snafu9241]

Why would someone run 14s? What are the pros and cons. What are the factory pilots running? If you look at the align 800 dfc pro it looks like Jamie and Ben like it on 12s. So what's the advantage of 14S on this 700 vs 12s on others. New to this 700 and trying to figure out others thinking.

[Jays200]

Number one reason, higher volts means lower amps, all other things being equal.

Lower kV motor on higher cell count may help with available pinion choices.

A bit like a V8 car vs a six cylinder. both have plenty of power but the V8 does it "easier".

Mine's bigger than your's but that's hardly a reason

[hydev]

I can't find it now but there is a very lengthy thread in this forum regarding the various merits of 14s V 12s on the Logo 700. If I remember correctly the consensus was around 12s but clearly you can make it work on 14s and fly fine.

Mike

[sl4ppy]

I fly 14s.

Be prepared if you do go that route that 7s batteries in a single pack (vs, split pack) are not very common and very few balance adapters/boards have 7s connectors.

Just an extra hoop to jump through to be aware of.

[futurase]

I did it. I ran 12S for 3/4 of a year and then went 14S. Scorpion 4530-450kv and Thor 7S 4400mah 60C packs. The power was not as much better as you would think. Without more blade to bite the power increase was not enough to justify the weight increase. It is a weight increase of about 8oz. too.

That is 4525 Ultimate to 4530-450.
Same YGE
Thor 6S 5000 65C to Thor 7S 4400 60C
Same Edge 713SE Blades
Same Edge 105 Tails

The power was not much better if any and I believe the extra disk loading mitigated the performance... I believe with some good 730's that the increase would have been good and the extra disk could have more than carried extra weight but.... no such blades exist except ModelSport 730 RAPID's and they are HORRIBLE, HORRIBLE blades. SUPER SOFT and you have to turn PITCH WAY UP to get any response from them. They should be used to stir paint cans is all...

So after it was all said and done I went back to original setup and I am glad I did. Lighting up this bird way to go not adding weight.

Spend money on skeleton frames and carbon boom if you want lighter.

As it has been said only balance board I know of is FMA board that can do 7S balance charging as 6S balance boards are everywhere and cheap.

This just my opinion... I like it best with combo equipment after I tried other...

[Stolla]

All said and done higher voltage is always better, lower amp draw equals less strain on esc, much longer battery life due to lower amp draw and consequent temps, higher performance but as futurase mentioned not neccesarily more powerful, depends on motor setup type of flying etc. Espescially with speed flying 12 s packs are not up to task tbh. My advice if you already have 6 s packs and they work for you, doesnt get hot etc stay with it if you run hot rewinded motors fly very agressive or speed flying 14 s is the better option.
You have to weight the options as well, for instance if you fly 5000 mah packs on 12 s you want to go for 4400-4500 on 14 s to keep weight in check.
Personally i would never go back to 12 s after converting to 14 on my 700 size helis

[futurase]

My 4530-450 ran hotter than my 4525 does and I made the ESC beep over temp warning twice. NEVER have with 4525.

Higher voltage should always be better but in this application as I stated for ME it was not...

[futurase]

As Stolla says speed is a different game. Speed come from three things. How big of a motor can you stuff in the heli, how many cells can you run it on as more is ALWAYS better and how low can you get the drag of the mechanics...

For 3D we are after different things. Speed flying is a couple of passes. 3D is not...

[Jays200]

I've been flying 14S on my 800Xx for almost two years now. There are plenty of chargers capable of charging 7S batteries like the icharger 208, 3010, Hyperion 720's or what I use Hyperion 1420. This charges and balances 14S packs and I got them from Allerc for $130.

[snafu9241]

The reason I brought this up is because I have 1 built on 12s and wanted to build another. I was going to run 14s and 753 blades so it would be a 750. Is this dumb? I have a trex 800 dfc on 12s now that flies really good with the align 770 blades. I just thought the logo on 14s with 753 would be that much more bad ass!

[futurase]

The 750's were developed for the 800 and are just too heavy. Some run them but for a hard 3D machine they are worthless. Just way to big and heavy. SAB 770's are MUCH more reactive then Edge 753's...

They will not harness the power of 14S and make the Logo 700 that much more... Several have tried... Too heavy of blade...

[sl4ppy]

I fly 14s on with 713's on a Rigid Heli Mauro 4530 450kv. It packs quite a punch and I love it.

This isn't me, but its this exact setup.

Logo XXtreme 700 14S Scorpion 4530 450kv rigidheli edition test 2 (3 min 23 sec)

I run 7s 5000 compacts. They save a little weight and size over the standard 5000s..

https://www.hobbyking.com/hobbyking/...Lipo_Pack.html

[Mentalic]

I'm running 12s, Rapid 730 paint stirrers and like it. Does take a ton of pitch to make it move though. This setup gets hot in the Louisiana summer and after repeated over temp's I installed the heatsink on the YGE, problem solved. Like the disk loading of this and so I have stuck with it.

Did try the 753's for a short time and it turns the 700 into a floaty 600se, hard to spin up the blades in an auto, did not like 753's.

Never tried the 14s option.

[snafu9241]

Is anyone running the commander 130 opto on 14S with this machine? I have on is why I bring this up.

[sl4ppy]

Originally Posted by futurase

The power was not much better if any and I believe the extra disk loading mitigated the performance... I believe with some good 730's that the increase would have been good and the extra disk could have more than carried extra weight but.... no such blades exist except ModelSport 730 RAPID's and they are HORRIBLE, HORRIBLE blades. SUPER SOFT and you have to turn PITCH WAY UP to get any response from them. They should be used to stir paint cans is all...

What about some 720's? or 716s??