flying 450 size helis on 4S?

[stickman]

Hello

i have a sudden interest in 4S setups.

cooler batt/electronics due to lower amp draw seem to be a very good idea.
comes at the cost of heavier batts but by not much.

anyone doing it already? can share ur setups and flight times? i am looking at doing simple 3D and aerobatics.

i am thinking of going with:

4S Turnigy 20C 2200mah
Tarot 450 (3600KV)
CC35 with BEC
11 tooth pinion.

shd have awesome power and mechanically i know the pro can handle 3K+ headspeeds easy.

cheers!

[JYZoom]

You will love it. Too bad my 4S TP 2250 40C pack cannot fit into my Flasher 450 Pro, canopy cannot fit.

Jonathan

Hello

i have a sudden interest in 4S setups.

cooler batt/electronics due to lower amp draw seem to be a very good idea.
comes at the cost of heavier batts but by not much.

anyone doing it already? can share ur setups and flight times? i am looking at doing simple 3D and aerobatics.

i am thinking of going with:

4S Turnigy 20C 2200mah
Tarot 450 (3600KV)
CC35 with BEC
11 tooth pinion.

shd have awesome power and mechanically i know the pro can handle 3K+ headspeeds easy.

cheers!

[Super-Hornet]

There are 2 ways to go up voltage.

If u use 4S1P, the current drop by 4S over 3S is not that high...thus u need about the same mAH as 3S. Take example, if u are using 3S1P of 2200mAH, u still have to use 2200mAH or maybe 2100mAH. Your battery weight will increase by about 1cell more.

The good thing is that, if u are into 3D with want high RPM, then your motor can still be the same as your 3S type....but u use lower gearing. This will give u higher power (in terms of torque) for you to do 3D....especially those taxing maneuvers.

The other method is, instead of going 4S1P, u go for 5S1P or 6S1P instead. By using 6S1P for example, your battery mAH can go like 1/2 of what u using. Thus, 1300mAH should be good. Using 1050mAH also can but I think 1300mAH might be longer flight time.
Since u are using 1300mAH, the battery weight is much lower. But since u need 6S instead of 3S, the weight is 1Cell x 6. But because of 1300mAH is smaller, the overall weight of 6S battery might still give u the same weight as 3S1P or 4S1P but your current consumption is lot more lesser.

But before u can use 6S1P, u need to use much lower KV motor. Take example, the Scorpion 14xx kv model. Your ESC must be able to handle 6S1P also.

For 4S1P and above, it is a must to have external BEC...or else, your ESC will keep on going thermal cutoff,

SH