UltraLight Logo 600 SX advice

[thomascoleman]

Ok so I have a Logo 600 SX kit coming

Now need a shopping list I want this heli to be as lightweight as possible but have power I know im asking for allot and willing to have a trade off on some parts.

Money not an object just want power and efficiency.

Flying style is mild to hard 3D.

[Jmann841]

The 600sx is already a very light disk loading, the biggest factors of weight are the motor and batteries. Find the highest efficency and power motor that you need in the smallest size class, and, use smaller batteries. Smaller batteries will shorten your flight times, but, it will be considerably lighter.

3000mah batteries, or possibly even 2700s should lighten it up quite a bit.

[thomascoleman]

Originally Posted by Jmann841

The 600sx is already a very light disk loading, the biggest factors of weight are the motor and batteries. Find the highest efficency and power motor that you need in the smallest size class, and, use smaller batteries. Smaller batteries will shorten your flight times, but, it will be considerably lighter.

Yea understand that but wanting advice FROM real people who have motors for this heli, will be a 12S setup and looking for 2150-2200 headspeed with the ability to go more if needed, but want a light motor that can output allot of power if required.

Allot of people seem to use the PRYO motor

[waheed1998]

Scorpion 4035-450 work fine for me on my 600sx more then enough power .But i do use 3300 mah packs 12s.With this setup i get 2150, 2200hs.From what i have read the pyro 700 motor are not more powerful then the scorpion 4035 motor, as for weight then you only talking a couple of grams.The logo 600sx is a light weight 600.I think changing pitch and headspeed will give you what you looking for vs a 600sx on a Jenny Craig diet.

[Jmann841]

Originally Posted by thomascoleman

Yea understand that but wanting advice FROM real people who have motors for this heli, will be a 12S setup and looking for 2150-2200 headspeed with the ability to go more if needed, but want a light motor that can output allot of power if required.

Allot of people seem to use the PRYO motor

I have 2 600s running different motors, both can put out 2200 rpm without issue. The airframe is irrelevent when comparing battery and motor of the same class heli as the airframes weight is a constant for that model.

As the poster above me stated, the weight differences between motors is not massively significant, the weight difference between batteries is much more. A 4025 class motor should be able to meet your requirements on the lighter side from any of the manufacturers (KDE, Xnova, Scorp, kontronik, savox, etc.) just look at their specs.

My personal first choice after owning motors from many different manufacturers would be the Xnova 4025.

[waheed1998]

A 600sx rtf is about 7.5lb with the pack i use which is abput 520 grams a piece it's total weight is about 8.5lbs all.Jmann posted above i thinks smaller packs would be the way to go at the expense of shorter flight time.

[bavci_0655]

If you want it to be lightest than you should use 2700-3000 mah batteries, 4025 size motor and 80a esc. And running this configuration at 2200 rpm only shortens your flight time. Probably below 4 minutes. You should also run lower headspeeds like below 2000 rpm to get 5 minutes flight time.

[Jmann841]

Or just get the 690sx.

[Mentalic]

Originally Posted by thomascoleman

Yea understand that but wanting advice FROM real people who have motors for this heli, will be a 12S setup and looking for 2150-2200 headspeed with the ability to go more if needed, but want a light motor that can output allot of power if required.

Allot of people seem to use the PRYO motor

Mine has a Pyro 700, Jive 80, 12s 3700-3800 packs. Light and cool power system with built in bec. If your going with a Pyro motor they do run better on Kontronc esc's.

[mahbouni]

Originally Posted by thomascoleman

Ok so I have a Logo 600 SX kit coming

Now need a shopping list I want this heli to be as lightweight as possible but have power I know im asking for allot and willing to have a trade off on some parts.

Money not an object just want power and efficiency.

Flying style is mild to hard 3D.

We're both in London so why don't you take a look at my two Logo 600's and see if either are what you have in mind. This is what I have:

Logo 600 A: Rotortech 640mm mains, Rail 106mm tails, 12s 3800mAh, Pyro 700-52 Competition, Jive Pro 120HV. This heli is very floaty and feels much bigger in the air than your average 600. It will do everything at 2000rpm for over 5 mins and is pretty beastly at 2200rpm for about 4.5 mins.

Logo 600 B: Rail 606mm mains, Rail 96mm tails, 12s 3800mAh, Pyro 700-45, Jive 80HV. This heli has a smaller presence and feels heavier but is more agile. I needed 2300rpm to get the performance I wanted and flight times are only 4 mins.

EDIT: Both helis have Silverline Vbars, 3 x BLS451 and BLS251

[kpod]

I think the Pyro 700 is about 100 grams lighter than a scorpion 4035. Also run the jive 80 and use its bec. Good plastic cased servos can save 80 grams over aluminum cased servos. Use light batteries as everyone has stated, trim wires and servo leads. Use a mini vbar with vbar control rx. Do this with small batteries and 640 blades and she will float... maybe too much.

4025 xnova won't work unless you shim the main shaft and use the old 600 motor mount without the counter bearing. If you use the sx motor mount, you have to use the scorpion 4035, xnova 4030, Pyro 700, or larger motors. I'm using the xnova 4030-470. It's super efficient and lighter than all the scorpion 4035 that I was using.

[Roadracerr]

The setup I have been flying for several years will give you what you want.

Logo 600 SX on 12S
Kontronic Pyro 700-45L with 13T pinion.
Kontronic Jive 80HV
(2) 2650mah, 6s 45C batteries
615 to 623mm Main Blades
95mm tail

The slighter large disc area combined with the lightweight batteries and lightweight Kontronik motor make a huge difference. The advantage of the the HV Jive Esc is means no external BEC (added weight) is necessary. I get 4 minutes of 3D with 20% left in the batteries. If I want to fly longer I just load in some 3300mah batteries.

[Kilo23]

Kde 600xf G3 motors are lighter than the scorp 4035's and more powerful. I ran that with 3700's on 12s and it flew great.

[Trader]

I think this JR servo combo is one of the lightest choice


JRC02426 : JR QRS-SLS01 x 3 + SPG01 Wide Voltage Servo Combo

http://www.modelhelicopters.co.uk/jr...rvo-combo.html

Features
For 600-700 size Electric Powered and 50-90 Class IC Helicopters
Ultra Lightweight Full Metal Case
New Exclusive Quick Release Harness
Metal Gearset
Brushless Motor
Dual Ball Bearing

SLS01 Cyclic Servo Specification
Torque: 6.0Kg.cm (4.8V) / 9.2Kg.cm (7.4V)
Speed: 0.10s/60° (4.8V) / 0.07s/60° (7.4V)
Weight: 53g
Dimensions: 27 x 21 x 41mm
Operational Voltage: 4.5V - 8.5V

SPG01 Rudder Servo Specification
Torque: 3.0Kg.cm (4.8V) / 4.6Kg.cm (7.4V)
Speed: 0.05s/60° (4.8V) / 0.03s/60° (7.4V)
Weight: 53g
Dimensions: 27 x 21 x 41mm
Operational Voltage: 4.5V - 8.5V

[mahbouni]

Hmm not bad price for JR. A little bit shy on torque compared to the discontinued BLS451 (10.6Kg) but probably still adequate for 99.9% of pilots. Ideal for a 550SX I would guess.

[thomascoleman]

Originally Posted by mahbouni

We're both in London so why don't you take a look at my two Logo 600's and see if either are what you have in mind. This is what I have:

Logo 600 A: Rotortech 640mm mains, Rail 106mm tails, 12s 3800mAh, Pyro 700-52 Competition, Jive Pro 120HV. This heli is very floaty and feels much bigger in the air than your average 600. It will do everything at 2000rpm for over 5 mins and is pretty beastly at 2200rpm for about 4.5 mins.

Logo 600 B: Rail 606mm mains, Rail 96mm tails, 12s 3800mAh, Pyro 700-45, Jive 80HV. This heli has a smaller presence and feels heavier but is more agile. I needed 2300rpm to get the performance I wanted and flight times are only 4 mins.

EDIT: Both helis have Silverline Vbars, 3 x BLS451 and BLS251

I like the sound of the Pyro 700-52 - do you have a link to this exact motor ?

I work in London but live in Kent

[thomascoleman]

Seems from the Servo's listed here

SC-1258TG = 52.4g
Futaba BLS451 = 58g
Futaba BLS251 = 49g (tail)
JRC02426 = 53g
SPG01 53g (tail)

Seems the savox is the lightest option ?

[mahbouni]

Originally Posted by thomascoleman

I like the sound of the Pyro 700-52 - do you have a link to this exact motor ?

I work in London but live in Kent

http://www.kasama.co.uk/motors/pyro-...mpetition.html

The Competition motors are heavier than the standard ones, because of the extra copper in the winding. It's only worth going for a competition motors if you want the extra performance. If you just want a light heli then I'd probably go with a standard Pyro 700.

RPM will vary with ESC. A HeliJive will yield as high as 2400rpm with the 700-52 on 12s and an 11T pinion. The JivePro yields only about 2200rpm with with the same pinion. Less if your batteries are old or cold. For other ESC's you'll have to do your own calculations or maybe someone else can advise.

[thomascoleman]

Originally Posted by mahbouni

http://www.kasama.co.uk/motors/pyro-...mpetition.html

The Competition motors are heavier than the standard ones, because of the extra copper in the winding. It's only worth going for a competition motors if you want the extra performance. If you just want a light heli then I'd probably go with a standard Pyro 700.

RPM will vary with ESC. A HeliJive will yield as high as 2400rpm with the 700-52 on 12s and an 11T pinion. The JivePro yields only about 2200rpm with with the same pinion. Less if your batteries are old or cold. For other ESC's you'll have to do your own calculations or maybe someone else can advise.

hello

The PYRO 700-52L C is listed as 375g on Fast lads

is that correct?

[Varelco]

Kontronik states its Pyro 700s weigh 375g but don't take it as gospel, I weighed my last 700-52 and it was 432g.