Set-ups

[Mike Spano]

I was read'n around on the forum and saw a post by Rodney stating he buys the E7 booms and is able to use them on any of his birds that is in need, cutting appropriately depending on the bird to the correct length... All booms are the same diameter. I think that's a great idea especially if  one can salvage say a busted E7 boom and use it on an E5... Will the 766 have the same diameter as the rest of the Synergy fleet?

the 766 is larger.

[Charles Carrington]

Rail 766 & 116 But I Got To Try The 806s
Scorpion 4525-520
Castle 160Hv
Rjx Servo
Cgy-750
7008 S-bus rx
EFuel Gauge
12s 5000+

[Danny Dugger]

Rail 766 & 116 But I Got To Try The 806s

Yup, I'm with you. I'm pretty sure 766 will be my "permanent" setup, but definitely going to have to try it out with 806... just 'cuz. I'll likely buy the 806 boom and blades along with the kit and have it staged up for when I'm feeling saucey

[Greg Jackson]

Rail 766 & 116 But I Got To Try The 806s

Yup, I'm with you. I'm pretty sure 766 will be my "permanent" setup, but definitely going to have to try it out with 806... just 'cuz. I'll likely buy the 806 boom and blades along with the kit and have it staged up for when I'm feeling saucey

Only a couple of people know this I imagine, but will you have to change motors to run 806 blades? Hopefully Matt or the Factory guys can chime in.

[Danny Dugger]

I shouldn't have to. With 520kv and the 12t pinion it should be pretty close to the RPM range I'd want to run with 806. The XTS 4535 is one hell of a powerhouse. Even if I have to run at lower PWM the Kosmik will be happy.

[Chris Sexton]

The 806s were tested with a 4525-520. So no you won't have to. That said that's a lot of blade for that motor and the power won't suit everyone's flight style.  Some will want cracked out motors and some will appreciate the power delivery of the 12s motors.


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[Greg Jackson]

That's true, Matt liked it with the 806 blades. Plus, I'm sure the videos he shot with the 766 blades had the Ultimate motor.  I plan to run the 766 size, but every now and then I have thoughts of trying it on 716. With the longer blade grips even 716s will pop well according to Cherry. Nice to know I won't have to change motors, just boom, etc.

[cml001]

I'm curious how dropping to a 450kv & maybe going up in pinion would work w 12s.... I'm not the guy to crunch numbers on this stuff... But I had that thought pop in my head... What would that do for flight times & power for the duration of the flight?

[Danny Dugger]

Looks like the biggest pinion (15T) would allow you to get maybe 1750 to neighborhood of 1800 RPM on 12s (with headroom for the governor on a Kosmik). Flight time will depend on how hard and at what headspeed you fly. Bigger pinions also require a little more grunt from the motor to turn the rotor.

[Josh Moen]

12s will run all of the sizes but as you go up in blade size it will stress the power system more. The 766 on 12s will weigh in a bit less than the 14s setups but I'd rather have a touch more weight and a system that runs cooler than light weight and less flight time/hotter electronics.

For everybodys info, the 766 uses a 139t main gear and the currently available pinions. This gives you the ratios of: 11:58-12t, 10:69-13t, 9:92-14t, 9:26-15t. On 12s with a 450kV motor you'd get a theoretical max head speed of 1,841 RPM with the 12t, 1,995 RPM with the 13t, 2,150 RPM with the 14t and 2,303 RPM with the 15t. I figured this conservatively at 3.95v per cell. So if you're considering a 450kV motor I'd probably opt for a 13t pinion. That should give you enough overhead to keep ESCs for getting angry! And like Danny posted, flight time will solely depend on head speed and type of flying.

 I personally will be running a pair of 766s with identical setups but one of them will be stretched to an 806.
Motor: Xnova 4535-460
ESC: YGE 160HV
FBL: Futaba CGY750
Cyclic: Futaba 9352HV
Tail: Futaba BLS276SV
766 & 806 Rail main blades
116 Rail tail blades


I hope this helps and as usual don't hesitate to ask questions, I'll answer what I can.

[cml001]

Great info guys, thanks for clear'n up the fog! Wish castle would make 14s compatible ESC

[Josh Moen]

Wish castle would make 14s compatible ESC

Me too!

[Greg Jackson]

Great info Josh, thanks!  Looks like a lot of people will run 766 or 806 blades, I might initially start with 716 Rails so I can give feedback on that size.

[Rodney Kirstine]

If I go 14S, I think I'll try that new Hobbywing 160A ESC.  I've had really good luck with every Hobbywing ESC that I've ever used.

[cml001]

If I were to get the 766 (be awhile if I do, haven't even maiden'd E7SE.. Wifey will kill me if she see me building another anytime soon) I don't know if I'd want 766 or 806 blades... Either has got to be a BIG bird... I know I'm kinda new in the hobby, but I am having trouble wrapping my head around that much blade (766 or 806) running off 12s. I'm am sure Matt & the team have done their homework and tested the crap outta the 766 and it is fine on 12s.... Just can't get my brain to accept it I guess... I wanna see this thing in the flesh.. Hopefully I'll get my fill at Heli Extravaganza.